COMPRESSED NATURAL GAS-FUELLED GENERATOR-BASED HYBRID ELECTRIC VEHICLE MANAGEMENT SYSTEM AND METHOD THEREOF

Abstract

Disclosed herein is a compressed natural gas-fuelled generator-based hybrid electric vehicle management system and method thereof (100) that comprises a compressed natural gas-fuelled generator (102) connected to a dual battery bank (104). The system (100) includes a dual battery bank (104) including a primary battery (106) and a secondary battery (108), a control unit (110) operatively connected to the compressed natural gas-fuelled generator (102) and the dual battery bank (104), wherein the control unit (110) manages energy distribution, selecting between the compressed natural gas-fuelled generator (102) and the dual battery bank (104) based on real-time vehicle power demand and the energy status of each battery, an energy monitoring module (114) operatively coupled with the control unit (110), the compressed natural gas-fuelled generator (102), and the dual battery bank (104), a regenerative braking mechanism (116) coupled to the dual battery bank (104).

Specification

Description:FIELD OF DISCLOSURE
[0001] The present disclosure relates generally relates to hybrid electric vehicle power systems, more specifically, relates to compressed natural gas-fuelled generator-based hybrid electric vehicle management system and method thereof.
BACKGROUND OF THE DISCLOSURE
[0002] This invention's potential is to reduce dependency on conventional fuels, as it uses compressed natural gas. This not only aligns with global efforts to cut down on fossil fuel consumption but also helps in making sustainable fuel sources more accessible to users.
[0003] This invention is designed to offer enhanced driving range and flexibility by efficiently managing energy from multiple sources, such as compressed natural gas and electric power. This dual approach supports longer trips without the frequent need to refuel or recharge, making it especially suitable for both urban and extended journeys.
[0004] Another advantage of this invention is the minimization of greenhouse gas emissions, as it uses a cleaner fuel source compared to traditional diesel or gasoline. This contributes to reducing the environmental impact of vehicle operations, thereby supporting regulatory standards and improving air quality.
[0005] Many existing hybrid vehicle systems rely heavily on complex energy management algorithms which are often challenging to maintain and can sometimes lead to inefficient energy distribution. This can result in higher energy costs and reduced fuel efficiency over time.
[0006] Current compressed natural gas or hybrid systems often lack integration for seamless operation, making them less responsive to dynamic driving conditions. This can impact performance, especially in environments requiring frequent acceleration and deceleration, such as city traffic.
[0007] Some similar inventions require significant space for fuel and battery storage, which limits the design flexibility of the vehicle and often leads to compromises in passenger or storage space. This design limitation can reduce vehicle comfort and practicality for users.
[0008] Thus, in light of the above-stated discussion, there exists a need for a compressed natural gas-fuelled generator-based hybrid electric vehicle management system and method thereof.
SUMMARY OF THE DISCLOSURE
[0009] The following is a summary description of illustrative embodiments of the invention. It is provided as a preface to assist those skilled in the art to more rapidly assimilate the detailed design discussion which ensues and is not intended in any way to limit the scope of the claims which are appended hereto in order to particularly point out the invention.
[0010] According to illustrative embodiments, the present disclosure focuses on a compressed natural gas-fuelled generator-based hybrid electric vehicle management system and method thereof which overcomes the above-mentioned disadvantages or provide the users with a useful or commercial choice.
[0011] An objective of the present disclosure is to provide a hybrid power management system that integrates compressed natural gas (CNG) fuel-based generation with electric battery power for extended vehicle operation.
[0012] Another objective of the present disclosure is to optimize fuel efficiency by enabling seamless energy transfer between the compressed natural gas (CNG)-powered generator and the electric battery system, minimizing fuel consumption.
[0013] Another objective of the present disclosure is to ensure reliable power supply through dual battery banks, maintaining vehicle performance under varying load conditions by balancing the energy sourced from the compressed natural gas (CNG) generator and the battery.
[0014] Another objective of the present disclosure is to support environmentally friendly transportation, utilizing cleaner compressed natural gas (CNG) fuel to significantly reduce vehicle emissions and environmental impact.
[0015] Another objective of the present disclosure is to offer improved operational range by allowing vehicles to switch between compressed natural gas (CNG)-powered generation and battery operation based on availability and efficiency, enhancing flexibility in long-distance travel.
[0016] Another objective of the present disclosure is to enable adaptive power management for different driving conditions, providing power adjustments depending on load requirements, road conditions, and vehicle performance.
[0017] Another objective of the present disclosure is to enhance vehicle energy autonomy, allowing vehicles to recharge their batteries using the compressed natural gas (CNG)-powered generator without the need for external charging infrastructure.
[0018] Another objective of the present disclosure is to offer real-time monitoring of fuel and energy levels, enabling drivers to make informed decisions on energy usage and further extending the utility of the dual power sources.
[0019] Another objective of the present disclosure is to reduce maintenance demands by using dual battery banks, allowing one bank to serve as a backup to maintain continuous power while the other undergoes diagnostics or recharge.
[0020] Yet another objective of the present disclosure is to provide a cost-effective solution for hybrid vehicle power management by maximizing the use of compressed natural gas (CNG), an affordable alternative fuel, alongside electricity to reduce operational costs.
[0021] In light of the above, in one aspect of the present disclosure, a compressed natural gas-fuelled generator-based hybrid electric vehicle power management system is disclosed herein. The system comprises a compressed natural gas-fuelled generator connected to a dual battery bank, wherein the compressed natural gas-fuelled generator supplies electrical power for vehicle propulsion and auxiliary systems. The system includes a dual battery bank including a primary battery and a secondary battery, each configured to store and supply electrical energy independently or in coordination to power the vehicle. The system also includes a control unit operatively connected to the compressed natural gas-fuelled generator and the dual battery bank, wherein the control unit manages energy distribution, selecting between the compressed natural gas-fuelled generator and the dual battery bank based on real-time vehicle power demand and the energy status of each battery. The system also includes an energy monitoring module operatively coupled with the control unit, the compressed natural gas-fuelled generator, and the dual battery bank, configured to track fuel levels, monitor charge status of each battery, and measure power output from the generator, wherein data gathered by the energy monitoring module is transmitted to the control unit for real-time energy management. The system also includes a regenerative braking mechanism coupled to the dual battery bank, configured to capture and convert kinetic energy into electrical energy during braking events, and recharge at least one battery in the dual battery bank.
[0022] In one embodiment, the primary battery in the dual battery bank functions as the main energy source during regular vehicle operation, and the secondary battery provides backup energy to ensure continuous power supply.
[0023] In one embodiment, the control unit further includes a user interface configured to display real-time data, such as fuel levels, battery charge status, and power distribution settings, allowing drivers to monitor energy consumption effectively.
[0024] In one embodiment, the control unit automatically switches power sources between the compressed natural gas-fuelled generator and the dual battery bank based on preset efficiency thresholds, enhancing fuel economy and reducing emissions.
[0025] In one embodiment, the compressed natural gas-fuelled generator includes a variable output control, which adjusts power generation levels in response to the control unit's real-time demand inputs to optimize fuel usage.
[0026] In one embodiment, the control unit initiates an automated battery-balancing sequence during idle periods to equalize charge levels between the primary and secondary batteries, enhancing battery lifespan and reliability.
[0027] In one embodiment, the dual battery bank includes an energy balancing circuit configured to dynamically balance charge levels between the primary battery and secondary battery, optimizing energy utilization across the batteries and extending overall battery lifespan under varying load conditions.
[0028] In one embodiment, the regenerative braking mechanism incorporates an adjustable energy recovery rate that adapts based on the real-time state of charge of the dual battery bank, ensuring maximum energy capture efficiency without overcharging the batteries and thus protecting battery health.
[0029] In one embodiment, the control unit includes a thermal management submodule operatively connected to the dual battery bank and the compressed natural gas-fuelled generator, wherein the thermal management submodule regulates battery temperature and generator operation to prevent overheating.
[0030] In light of the above, in one aspect of the present disclosure, a compressed natural gas-fuelled generator-based hybrid electric vehicle power management method is disclosed herein. The method comprises generating electrical power via a compressed natural gas-fuelled generator configured to supply energy to a dual battery bank and directly to the vehicle's propulsion and auxiliary systems. The method includes storing electrical energy in a dual battery bank, comprising a primary battery and a secondary battery, each configured to independently or jointly supply power to the vehicle. The method also includes automatically managing energy distribution between the compressed natural gas-fuelled generator and the dual battery bank through a control unit, which dynamically switches power sources based on real-time vehicle power demand and battery energy status to optimize efficiency. The method also includes monitoring fuel levels, battery charge states, and power output using an energy monitoring module, which transmits data to the control unit to enable precise energy management. The method also includes capturing and converting kinetic energy into electrical energy during braking through a regenerative braking mechanism, which recharges the dual battery bank and ensures energy recapture for increased efficiency.
[0031] These and other advantages will be apparent from the present application of the embodiments described herein.
[0032] The preceding is a simplified summary to provide an understanding of some embodiments of the present invention. This summary is neither an extensive nor exhaustive overview of the present invention and its various embodiments. The summary presents selected concepts of the embodiments of the present invention in a simplified form as an introduction to the more detailed description presented below. As will be appreciated, other embodiments of the present invention are possible utilizing, alone or in combination, one or more of the features set forth above or described in detail below.
[0033] These elements, together with the other aspects of the present disclosure and various features are pointed out with particularity in the claims annexed hereto and form a part of the present disclosure. For a better understanding of the present disclosure, its operating advantages, and the specified object attained by its uses, reference should be made to the accompanying drawings and descriptive matter in which there are illustrated exemplary embodiments of the present disclosure.
BRIEF DESCRIPTION OF THE DRAWINGS
[0034] To describe the technical solutions in the embodiments of the present disclosure or in the prior art more clearly, the following briefly describes the accompanying drawings required for describing the embodiments or the prior art. Apparently, the accompanying drawings in the following description merely show some embodiments of the present disclosure, and a person of ordinary skill in the art can derive other implementations from these accompanying drawings without creative efforts. All of the embodiments or the implementations shall fall within the protection scope of the present disclosure.
[0035] The advantages and features of the present disclosure will become better understood with reference to the following detailed description taken in conjunction with the accompanying drawing, in which:
[0036] FIG. 1 illustrates a block diagram of a compressed natural gas-fuelled generator-based hybrid electric vehicle power management system, in accordance with an exemplary embodiment of the present disclosure;
[0037] FIG. 2 illustrates a step-by-step of the working model of a compressed natural gas-fuelled generator-based hybrid electric vehicle power management system and method thereof, in accordance with an exemplary embodiment of the present disclosure;
[0038] FIG. 3 illustrates a flowchart of a compressed natural gas-fuelled generator-based hybrid electric vehicle power management system, in accordance with an exemplary embodiment of the present disclosure;
[0039] FIG. 4 illustrates a flowchart of a compressed natural gas-fuelled generator-based hybrid electric vehicle power management method, in accordance with an exemplary embodiment of the present disclosure.
[0040] Like reference, numerals refer to like parts throughout the description of several views of the drawing.
[0041] The compressed natural gas-fuelled generator-based hybrid electric vehicle management system and method thereof is illustrated in the accompanying drawings, which like reference letters indicate corresponding parts in the various figures. It should be noted that the accompanying figure is intended to present illustrations of exemplary embodiments of the present disclosure. This figure is not intended to limit the scope of the present disclosure. It should also be noted that the accompanying figure is not necessarily drawn to scale.
DETAILED DESCRIPTION OF THE DISCLOSURE
[0042] The following is a detailed description of embodiments of the disclosure depicted in the accompanying drawings. The embodiments are in such detail as to communicate the disclosure. However, the amount of detail offered is not intended to limit the anticipated variations of embodiments; on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the present disclosure.
[0043] In the following description, numerous specific details are set forth in order to provide a thorough understanding of the embodiments of the present disclosure. It may be apparent to one skilled in the art that embodiments of the present disclosure may be practiced without some of these specific details.
[0044] Various terms as used herein are shown below. To the extent a term is used, it should be given the broadest definition persons in the pertinent art have given that term as reflected in printed publications and issued patents at the time of filing.
[0045] The terms "a" and "an" herein do not denote a limitation of quantity, but rather denote the presence of at least one of the referenced items.
[0046] The terms "having", "comprising", "including", and variations thereof signify the presence of a component.
[0047] Referring now to FIG. 1 to FIG. 4 to describe various exemplary embodiments of the present disclosure. FIG. 1 illustrates a compressed natural gas-fuelled generator-based hybrid electric vehicle management system 100, in accordance with an exemplary embodiment of the present disclosure.
[0048] The system 100 may include a compressed natural gas-fuelled generator 102 connected to a dual battery bank 104, wherein the compressed natural gas-fuelled generator 102 supplies electrical power for vehicle propulsion and auxiliary systems. The system 100 may also include a dual battery bank 104 including a primary battery 106 and a secondary battery 108, each configured to store and supply electrical energy independently or in coordination to power the vehicle. The system 100 may also include a control unit 110 operatively connected to the compressed natural gas-fuelled generator 102 and the dual battery bank 104, wherein the control unit 110 manages energy distribution, selecting between the compressed natural gas-fuelled generator 102 and the dual battery bank 104 based on real-time vehicle power demand and the energy status of each battery. The system 100 may also include an energy monitoring module 114 operatively coupled with the control unit 110, the compressed natural gas-fuelled generator 102, and the dual battery bank 104, configured to track fuel levels, monitor charge status of each battery, and measure power output from the generator, wherein data gathered by the energy monitoring module 114 is transmitted to the control unit 110 for real-time energy management. The system 100 may also include a regenerative braking mechanism 116 coupled to the dual battery bank 104, configured to capture and convert kinetic energy into electrical energy during braking events, and recharge at least one battery in the dual battery bank 104.
[0049] The primary battery 106 in the dual battery bank 104 functions as the main energy source during regular vehicle operation, and the secondary battery 108 provides backup energy to ensure continuous power supply.
[0050] The control unit 110 further includes a user interface 112 configured to display real-time data, such as fuel levels, battery charge status, and power distribution settings, allowing drivers to monitor energy consumption effectively.
[0051] The control unit 110 automatically switches power sources between the compressed natural gas-fuelled generator 102 and the dual battery bank 104 based on preset efficiency thresholds, enhancing fuel economy and reducing emissions.
[0052] The compressed natural gas-fuelled generator 102 includes a variable output control, which adjusts power generation levels in response to the control unit's 110 real-time demand inputs to optimize fuel usage.
[0053] The control unit 110 initiates an automated battery-balancing sequence during idle periods to equalize charge levels between the primary battery 106 and the secondary battery 108, enhancing battery lifespan and reliability.
[0054] The dual battery bank 104 includes an energy balancing circuit configured to dynamically balance charge levels between the primary battery 106 and the secondary battery 108, optimizing energy utilization across the batteries and extending overall battery lifespan under varying load conditions.
[0055] The regenerative braking mechanism 116 incorporates an adjustable energy recovery rate that adapts based on the real-time state of charge of the dual battery bank 104, ensuring maximum energy capture efficiency without overcharging the batteries and thus protecting battery health.
[0056] The control unit 110 includes a thermal management submodule 118 operatively connected to the dual battery bank 104 and the compressed natural gas-fuelled generator 102, wherein the thermal management submodule 118 regulates battery temperature and generator operation to prevent overheating.
[0057] The method 100 may include generating electrical power via a compressed natural gas-fuelled generator 102 configured to supply energy to a dual battery bank 104 and directly to the vehicle's propulsion and auxiliary systems. The method 100 may also include storing electrical energy in a dual battery bank 104, comprising a primary battery 106 and a secondary battery 108, each configured to independently or jointly supply power to the vehicle. The method 100 may also include automatically managing energy distribution between the compressed natural gas-fuelled generator 102 and the dual battery bank 104 through a control unit 110, which dynamically switches power sources based on real-time vehicle power demand and battery energy status to optimize efficiency. The method 100 may also include monitoring fuel levels, battery charge states, and power output using an energy monitoring module 114, which transmits data to the control unit 110 to enable precise energy management. efficiency. The method 100 may also include capturing and converting kinetic energy into electrical energy during braking through a regenerative braking mechanism 116, which recharges the dual battery bank 104 and ensures energy recapture for increased efficiency.
[0058] The compressed natural gas-fuelled generator 102 provides a reliable source of electrical power, converting compressed natural gas into usable energy for vehicle propulsion and auxiliary systems. The compressed natural gas-fuelled generator 102 is structured to deliver consistent power output while operating cleanly, as compressed natural gas produces fewer emissions than traditional fossil fuels. By integrating with the dual battery bank 104, the compressed natural gas-fuelled generator 102 supplies energy not only to drive the vehicle under high-demand conditions but also for auxiliary applications, ensuring that energy needs are met across all aspects of vehicle operation. Functionality is managed by the control unit 110, which regulates the compressed natural gas-fuelled generator 102's performance based on real-time assessments of energy demand. The compressed natural gas-fuelled generator 102 is designed to ensure low operational noise, which enhances the driver's experience while promoting environmentally friendly vehicle operation through optimized fuel use and reduced emissions. Monitoring by the energy monitoring module 114 keeps fuel levels and output metrics consistently within optimal ranges.
[0059] The dual battery bank 104 acts as the vehicle's energy storage and supply hub, containing both the primary battery 106 and the secondary battery 108. The dual battery bank 104 is designed for high energy retention and flexibility, allowing it to independently power various vehicle functions or collaborate with other systems to deliver a combined energy supply for higher demands. The dual battery bank 104 is a critical component, as it receives and stores energy generated both from the compressed natural gas-fuelled generator 102 and regenerative braking mechanism 116, effectively capturing and reusing energy during operation. The energy balancing circuit within the dual battery bank 104 ensures even distribution of charge between the primary battery 106 and the secondary battery 108, which contributes to battery longevity by reducing stress on any single cell. In conjunction with the control unit 110, the dual battery bank 104 adapts its power output in real-time, maintaining optimal energy distribution for continuous vehicle performance.
[0060] The primary battery 106 within the dual battery bank 104 serves as the primary source of power for vehicle propulsion, providing steady, reliable energy during regular operation. The primary battery 106's main function is to ensure that the vehicle remains operational and responsive under standard driving conditions, and it is designated by the control unit 110 as the first line of energy supply. The primary battery 106 is also the main recipient of energy captured through the regenerative braking mechanism 116, which provides an additional source of power without fuel consumption. By storing this captured energy, the primary battery 106 extends the vehicle's operating range and enhances energy efficiency. The energy monitoring module 114 continuously assesses the charge status of the primary battery 106, ensuring that its usage remains balanced and effective throughout each journey.
[0061] The secondary battery 108 acts as a backup power source within the dual battery bank 104, ensuring continuous power availability even under varying load conditions. When the primary battery 106 approaches lower charge levels or when energy demands increase suddenly, the control unit 110 engages the secondary battery 108 to supplement the power supply. The secondary battery 108 provides the necessary support to avoid performance drops, creating a seamless transition between the energy sources. The regenerative braking mechanism 116 also recharges the secondary battery 108, maximizing the energy recaptured from braking events. The secondary battery 108 is vital for situations that require extended energy output, and it plays a key role in the overall longevity of the dual battery bank 104.
[0062] The control unit 110 coordinates energy distribution across the compressed natural gas-fuelled generator 102 and dual battery bank 104. The control unit 110 dynamically assesses real-time energy needs and adjusts power distribution to maintain efficient fuel usage and optimal battery performance. The control unit 110 relies on data from the energy monitoring module 114 to evaluate fuel and charge status, allowing for automated adjustments based on preset efficiency parameters. By managing these aspects, the control unit 110 maximizes energy use and minimizes waste, enhancing the overall performance and longevity of the vehicle's power systems. The control unit 110 connects to the user interface 112, making real-time energy information available to the driver.
[0063] The user interface 112 provides drivers with accessible, real-time data regarding the vehicle's energy status, including fuel levels in the compressed natural gas-fuelled generator 102, charge levels of the dual battery bank 104, and current power distribution settings. The user interface 112 allows drivers to view the data gathered by the energy monitoring module 114 and managed by the control unit 110, making them aware of their current energy consumption patterns. The user interface 112 also offers alerts if power sources need attention, supporting proactive management and efficient vehicle operation. By conveying accurate information about the vehicle's energy status, the user interface 112 enhances driver engagement and operational awareness.
[0064] The energy monitoring module 114 is responsible for tracking the energy levels within the compressed natural gas-fuelled generator 102, dual battery bank 104, and other power-related metrics. The energy monitoring module 114 collects real-time data, including fuel levels, battery charge statuses, and the power output from the compressed natural gas-fuelled generator 102, which it then transmits to the control unit 110. This continuous flow of information enables the control unit 110 to make real-time adjustments in power distribution, ensuring optimal energy efficiency and consistent performance. The energy monitoring module 114 provides accurate data that enhances system responsiveness to fluctuating power demands and supports the long-term health of the vehicle's energy storage systems.
[0065] The regenerative braking mechanism 116 captures kinetic energy generated during braking, converting it into electrical energy to recharge the dual battery bank 104. The regenerative braking mechanism 116 supports energy efficiency by recovering and reusing energy that would otherwise be lost as heat, extending the driving range and reducing reliance on the compressed natural gas-fuelled generator 102. The control unit 110 regulates the regenerative braking mechanism 116 to ensure that the energy recapture rate remains balanced with the state of charge in the dual battery bank 104.
[0066] The thermal management submodule 118 is responsible for maintaining safe operating temperatures within the dual battery bank 104 and compressed natural gas-fuelled generator 102. By monitoring and adjusting temperature levels, the thermal management submodule 118 prevents overheating, thus preserving the longevity of the energy components and ensuring optimal performance. The thermal management submodule 118 works in tandem with the control unit 110, activating cooling or heating measures, when necessary, especially during periods of high energy output or charging. This proactive approach helps protect the vehicle's power systems and enhances safety, particularly in demanding operational conditions.
[0067] FIG. 2 illustrates a step-by-step of the working model of a compressed natural gas-fuelled generator-based hybrid electric vehicle power management system and method thereof, in accordance with an exemplary embodiment of the present disclosure.
[0068] The CNG engine 202 serves as the primary power source, converting compressed natural gas into mechanical energy to propel the vehicle and generate electricity. The CNG engine 202 provides a cleaner alternative to traditional fossil fuels, producing fewer emissions while still delivering sufficient power for hybrid vehicle applications. This engine is specifically designed to optimize fuel efficiency, reducing operational costs and environmental impact. The integration with generator 204 allows the CNG engine 202 to operate as a dual-purpose component, facilitating both vehicle propulsion and electrical generation, which enhances overall system efficiency.
[0069] The generator 204 functions as an energy converter within the system, transforming mechanical energy from the CNG engine 202 into electrical energy. This electrical energy is stored in the battery bank 208 or directly used to power the vehicle's electrical systems. The generator 204 is engineered to maintain a stable electrical output, ensuring that the system can meet the vehicle's energy demands under various operating conditions. By capturing excess energy produced by the CNG engine 202, the generator 204 contributes to an efficient power flow and helps optimize fuel consumption, extending the range and reliability of the hybrid vehicle.
[0070] The charge controller 206 plays a crucial role in managing the flow of electricity between the generator 204 and the battery bank 208, ensuring that the batteries receive an optimal charge. The charge controller 206 regulates the voltage and current to prevent overcharging, which could damage the batteries and reduce their lifespan. Through real-time monitoring and adjustments, the charge controller 206 ensures efficient power distribution and maintains the health of the battery bank 208. This component's management of energy flow contributes to the system's overall efficiency, as it allows for effective energy storage while avoiding waste.
[0071] The battery bank 208 acts as the primary storage unit for electrical energy generated by the generator 204 and CNG engine 202. The battery bank 208 stores energy for both immediate and future use, providing a steady supply of power to the vehicle's propulsion and auxiliary systems. It is designed for high-capacity energy storage, ensuring that the hybrid system has adequate energy reserves for extended operation. By maintaining a consistent power supply, the battery bank 208 supports continuous vehicle functionality and improves efficiency, especially during energy-demanding driving conditions. The charge controller 206 actively manages the energy stored in the battery bank 208, optimizing battery life and performance.
[0072] FIG. 3 illustrates a flowchart of a compressed natural gas-fuelled generator-based hybrid electric vehicle power management system, in accordance with an exemplary embodiment of the present disclosure.
[0073] At 302, initialize energy monitoring to check fuel levels, battery charge status, and generator output.
[0074] At 304, control unit assesses vehicle power demand and battery energy levels.
[0075] At 306, select power source between the compressed natural gas-fuelled generator and dual battery bank based on power demand and efficiency thresholds.
[0076] At 308, manage energy distribution by supplying power from the selected source to vehicle propulsion and auxiliary systems.
[0077] At 310, regenerative braking mechanism activates during braking to capture kinetic energy and recharge the dual battery bank.
[0078] At 312, energy monitoring module updates the control unit with real-time data for continued adjustments.
[0079] At 314, thermal management submodule regulates temperatures of the generator and battery bank to prevent overheating during operation.
[0080] FIG. 4 illustrates a flowchart of a compressed natural gas-fuelled generator-based hybrid electric vehicle power management method, in accordance with an exemplary embodiment of the present disclosure.
[0081] At 402, generating electrical power via a compressed natural gas-fuelled generator configured to supply energy to a dual battery bank and directly to the vehicle's propulsion and auxiliary systems.
[0082] At 404, storing electrical energy in a dual battery bank, comprising a primary battery and a secondary battery, each configured to independently or jointly supply power to the vehicle.
[0083] At 406, automatically managing energy distribution between the compressed natural gas-fuelled generator and the dual battery bank through a control unit, which dynamically switches power sources based on real-time vehicle power demand and battery energy status to optimize efficiency.
[0084] At 408, monitoring fuel levels, battery charge states, and power output using an energy monitoring module, which transmits data to the control unit to enable precise energy management.
[0085] At 410, capturing and converting kinetic energy into electrical energy during braking through a regenerative braking mechanism, which recharges the dual battery bank and ensures energy recapture for increased efficiency.
[0086] While the invention has been described in connection with what is presently considered to be the most practical and various embodiments, it will be understood that the invention is not to be limited to the disclosed embodiments, but on the contrary, is intended to cover various modifications and equivalent arrangements included within the scope of the appended claims.
[0087] A person of ordinary skill in the art may be aware that, in combination with the examples described in the embodiments disclosed in this specification, units and algorithm steps may be implemented by electronic hardware, computer software, or a combination thereof.
[0088] The foregoing descriptions of specific embodiments of the present disclosure have been presented for purposes of illustration and description. They are not intended to be exhaustive or to limit the present disclosure to the precise forms disclosed, and many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described to best explain the principles of the present disclosure and its practical application, and to thereby enable others skilled in the art to best utilize the present disclosure and various embodiments with various modifications as are suited to the particular use contemplated. It is understood that various omissions and substitutions of equivalents are contemplated as circumstances may suggest or render expedient, but such omissions and substitutions are intended to cover the application or implementation without departing from the scope of the present disclosure.
[0089] Disjunctive language such as the phrase "at least one of X, Y, Z," unless specifically stated otherwise, is otherwise understood with the context as used in general to present that an item, term, etc., may be either X, Y, or Z, or any combination thereof (e.g., X, Y, and/or Z). Thus, such disjunctive language is not generally intended to, and should not, imply that certain embodiments require at least one of X, at least one of Y, or at least one of Z to each be present.
[0090] In a case that no conflict occurs, the embodiments in the present disclosure and the features in the embodiments may be mutually combined. The foregoing descriptions are merely specific implementations of the present disclosure, but are not intended to limit the protection scope of the present disclosure. Any variation or replacement readily figured out by a person skilled in the art within the technical scope disclosed in the present disclosure shall fall within the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure shall be subject to the protection scope of the claims.
, Claims:I/We Claim:
1. A compressed natural gas-fuelled generator-based hybrid electric vehicle power management system (100) comprising:
a compressed natural gas-fuelled generator (102) connected to a dual battery bank (104), wherein the compressed natural gas-fuelled generator (102) supplies electrical power for vehicle propulsion and auxiliary systems;
a dual battery bank (104) including a primary battery (106) and a secondary battery (108), each configured to store and supply electrical energy independently or in coordination to power the vehicle;
a control unit (110) operatively connected to the compressed natural gas-fuelled generator (102) and the dual battery bank (104), wherein the control unit (110) manages energy distribution, selecting between the compressed natural gas-fuelled generator (102) and the dual battery bank (104) based on real-time vehicle power demand and the energy status of each battery;
an energy monitoring module (114) operatively coupled with the control unit (110), the compressed natural gas-fuelled generator (102), and the dual battery bank (104), configured to track fuel levels, monitor charge status of each battery, and measure power output from the generator, wherein data gathered by the energy monitoring module (114) is transmitted to the control unit (110) for real-time energy management;
a regenerative braking mechanism (116) coupled to the dual battery bank (104), configured to capture and convert kinetic energy into electrical energy during braking events, and recharge at least one battery in the dual battery bank (104).
2. The system (100) as claimed in claim 1, wherein the primary battery (106) in the dual battery bank (104) functions as the main energy source during regular vehicle operation, and the secondary battery (108) provides backup energy to ensure continuous power supply.
3. The system (100) as claimed in claim 1, wherein the control unit (110) further includes a user interface (112) configured to display real-time data, such as fuel levels, battery charge status, and power distribution settings, allowing drivers to monitor energy consumption effectively.
4. The system (100) as claimed in claim 1, wherein the control unit (110) automatically switches power sources between the compressed natural gas-fuelled generator (102) and the dual battery bank (104) based on preset efficiency thresholds, enhancing fuel economy and reducing emissions.
5. The system (100) as claimed in claim 1, wherein the compressed natural gas-fuelled generator (102) includes a variable output control, which adjusts power generation levels in response to the control unit's (110) real-time demand inputs to optimize fuel usage.
6. The system (100) as claimed in claim 1, wherein the control unit (110) initiates an automated battery-balancing sequence during idle periods to equalize charge levels between the primary battery (106) and the secondary battery (108), enhancing battery lifespan and reliability.
7. The system (100) as claimed in claim 1, wherein the dual battery bank (104) includes an energy balancing circuit configured to dynamically balance charge levels between the primary battery (106) and the secondary battery (108), optimizing energy utilization across the batteries and extending overall battery lifespan under varying load conditions.
8. The system (100) claimed in claim 1, wherein the regenerative braking mechanism (116) incorporates an adjustable energy recovery rate that adapts based on the real-time state of charge of the dual battery bank (104), ensuring maximum energy capture efficiency without overcharging the batteries and thus protecting battery health.
9. The system (100) as claimed in claim 1, wherein the control unit (110) includes a thermal management submodule (118) operatively connected to the dual battery bank (104) and the compressed natural gas-fuelled generator (102), wherein the thermal management submodule (118) regulates battery temperature and generator operation to prevent overheating.
10. A compressed natural gas-fuelled generator-based hybrid electric vehicle power management method (100) comprising:
generating electrical power via a compressed natural gas-fuelled generator (102) configured to supply energy to a dual battery bank (104) and directly to the vehicle's propulsion and auxiliary systems;
storing electrical energy in a dual battery bank (104), comprising a primary battery (106) and a secondary battery (108), each configured to independently or jointly supply power to the vehicle;
automatically managing energy distribution between the compressed natural gas-fuelled generator (102) and the dual battery bank (104) through a control unit (110), which dynamically switches power sources based on real-time vehicle power demand and battery energy status to optimize efficiency;
monitoring fuel levels, battery charge states, and power output using an energy monitoring module (114), which transmits data to the control unit (110) to enable precise energy management;
capturing and converting kinetic energy into electrical energy during braking through a regenerative braking mechanism (116), which recharges the dual battery bank (104) and ensures energy recapture for increased efficiency.

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