Hydrogen hybrid power vehicle operation mode control method, device, equipment and medium

Abstract

The invention discloses a hydrogen hybrid power vehicle operation mode control method and device, equipment and a medium, and belongs to the technical field of hydrogen hybrid power vehicles. The hydrogen hybrid power vehicle operation mode control method comprises the steps that when an ignition switch of a hydrogen hybrid power vehicle is set to be in an ON gear and no whole vehicle fault exists or no whole vehicle fault of which the fault level is equal to a first preset level exists, the ignition switch of the hydrogen hybrid power vehicle is switched to be in an ON gear; according to the state of a gas-electricity system, the state of a hydrogen storage system, the residual electric quantity of a fuel cell and the allowable charging power of a battery management system, the vehicle operation mode is determined, and the first preset grade is the highest grade in all possible whole vehicle faults; and the hydrogen hybrid power vehicle is controlled to operate according to the determined vehicle operation mode, the problem that in the prior art, the operation mode of the vehicle is determined only according to the SOC value of the fuel cell, and the personal safety of a user is directly affected due to damage of a high-pressure system in a hydrogen fuel system is solved, and the safety performance of the vehicle can be improved.

Description

Technical Field

[0001] The present application relates to the technical field of hydrogen hybrid vehicles, and in particular to a method, device, equipment and computer-readable storage medium for controlling an operating mode of a hydrogen hybrid vehicle. Background Art

[0002] As an important branch of new energy vehicles, hydrogen hybrid vehicles not only combine the convenience of traditional fuel vehicles and the environmental friendliness of electric vehicles, but also excel in terms of endurance, load-carrying capacity, and adaptability to harsh environments. How to determine the operating mode of hydrogen hybrid vehicles to improve vehicle safety has become an urgent problem to be solved.

[0003] In the prior art, when the main power of a hydrogen hybrid vehicle is turned on, the vehicle controller reads the remaining power (State of Charge, SOC) of the fuel cell and determines the vehicle's operating mode based on the remaining power of the fuel cell. If the remaining power of the fuel cell is sufficient, the vehicle is controlled to operate in pure electric mode; if the remaining power of the fuel cell is insufficient, the vehicle is controlled to operate in fuel-electric mode.

[0004] However, the existing technology only determines the vehicle's operating mode based on the SOC value of the fuel cell, which may directly affect the user's personal safety due to damage to the high-pressure system in the hydrogen fuel system, reduce the vehicle's safety performance, and even cause safety accidents. Summary of the invention

[0005] The present application provides a method, device, equipment and computer-readable storage medium for controlling the operating mode of a hydrogen hybrid vehicle, which can solve the technical problems existing in the prior art that the operating mode of the vehicle is determined only according to the SOC value of the fuel cell, and there is a problem that the high-pressure system in the hydrogen fuel system is damaged, which directly affects the personal safety of the user, will reduce the safety performance of the vehicle, and even cause safety accidents.

[0006] In a first aspect, an embodiment of the present application provides a method for controlling an operating mode of a hydrogen hybrid vehicle, the method comprising:

[0007] When the ignition switch of the hydrogen hybrid vehicle is set to the ON position and there is no vehicle fault or no vehicle fault with a fault level equal to the first preset level, the vehicle operation mode is determined according to the state of the fuel-electric system, the state of the hydrogen storage system, the remaining power of the fuel cell and the charging power allowed by the battery management system, wherein the first preset level is the highest fault level among all possible vehicle faults;

[0008] The hydrogen hybrid vehicle is controlled to operate according to a determined vehicle operation mode.

[0009] In combination with the first aspect, in one embodiment, determining the vehicle operation mode according to the state of the fuel-electric system, the state of the hydrogen storage system, the remaining power of the fuel cell, and the charging power allowed by the battery management system includes:

[0010] When the states of the fuel-electric system and the hydrogen storage system are both in a fault-free state, the remaining power of the fuel cell is less than a first preset threshold, and the charging power allowed by the battery management system is greater than a second preset threshold, the vehicle operation mode is determined to be the fuel-electric mode.

[0011] In combination with the first aspect, in one embodiment, determining the vehicle operation mode according to the state of the fuel-electric system, the state of the hydrogen storage system, the remaining power of the fuel cell, and the charging power allowed by the battery management system includes:

[0012] When the fuel-electric system or the hydrogen storage system is in a fault state, the vehicle operation mode is determined to be a pure electric mode.

[0013] In combination with the first aspect, in one embodiment, determining the vehicle operation mode according to the state of the fuel-electric system, the state of the hydrogen storage system, the remaining power of the fuel cell, and the charging power allowed by the battery management system includes:

[0014] When the states of the fuel-electric system and the hydrogen storage system are both in a fault-free state, the remaining power of the fuel cell is greater than a first preset threshold, or the charging power allowed by the battery management system is less than a second preset threshold, the vehicle operation mode is determined to be a pure electric mode.

[0015] In combination with the first aspect, in one implementation, the method further includes:

[0016] During the operation of the hydrogen hybrid vehicle in the fuel-electric mode, continuously detect whether there is a hydrogen storage system fault;

[0017] If there is a hydrogen storage system fault, determine the fault level corresponding to the hydrogen storage system fault;

[0018] Based on the fault level corresponding to the hydrogen storage system fault, the open and closed state of the hydrogen storage system bottle valve is determined.

[0019] In combination with the first aspect, in one implementation, determining the open and closed state of the hydrogen storage system bottle valve based on the fault level corresponding to the hydrogen storage system fault includes:

[0020] When the fault level corresponding to the hydrogen storage system fault is level one, keep the hydrogen storage system bottle valve in the open state;

[0021] When the fault level corresponding to the hydrogen storage system fault is level 2, after sending a request to close the hydrogen storage system valve, if no instruction to close the hydrogen storage system valve is received within the first preset time, the hydrogen storage system valves are closed in sequence; if an instruction to close the hydrogen storage system valve is received within the first preset time, the hydrogen storage system valves are forcibly closed;

[0022] When the fault level corresponding to the hydrogen storage system fault is level three, the hydrogen storage system bottle valve is forcibly closed.

[0023] In combination with the first aspect, in one implementation, the method further includes:

[0024] During vehicle driving, when it is detected that the highest level of the fault level corresponding to the vehicle fault is equal to the first preset level, the fault level corresponding to the hydrogen storage system fault is equal to the second preset level, or the emergency switch is triggered, an emergency shutdown command is sent to the fuel-electric system and the duration is recorded;

[0025] If the recorded duration reaches the second preset duration and no shutdown completion status is received from the fuel-electric system, the vehicle is controlled to power off at high voltage.

[0026] In a second aspect, an embodiment of the present application provides a hydrogen hybrid vehicle operation mode control device, the hydrogen hybrid vehicle operation mode control device comprising:

[0027] A first determination module is used to determine the vehicle operation mode according to the state of the fuel-electric system, the state of the hydrogen storage system, the remaining power of the fuel cell and the charging power allowed by the battery management system when the ignition switch of the hydrogen hybrid vehicle is set to the ON position and there is no vehicle fault or there is no vehicle fault with a fault level equal to a first preset level, wherein the first preset level is the highest fault level among all possible vehicle faults;

[0028] The first control module is used to control the hydrogen hybrid vehicle to operate according to a determined vehicle operation mode.

[0029] In a third aspect, an embodiment of the present application provides a hydrogen hybrid vehicle operation mode control device, the hydrogen hybrid vehicle operation mode control device comprising a processor, a memory, and a hydrogen hybrid vehicle operation mode control program stored in the memory and executable by the processor, wherein when the hydrogen hybrid vehicle operation mode control program is executed by the processor, the steps of the hydrogen hybrid vehicle operation mode control method as described in any one of the first aspects are implemented.

[0030] In a fourth aspect, an embodiment of the present application provides a computer-readable storage medium, on which a hydrogen hybrid vehicle operation mode control program is stored, wherein when the hydrogen hybrid vehicle operation mode control program is executed by a processor, the steps of the hydrogen hybrid vehicle operation mode control method as described in any one of the first aspects are implemented.

[0031] The beneficial effects brought by the technical solution provided in the embodiments of the present application include:

[0032] When the ignition switch of the hydrogen hybrid vehicle is set to the ON position and there is no vehicle fault or there is no vehicle fault with a fault level equal to the first preset level, the vehicle operation mode is determined according to the state of the fuel-electric system, the state of the hydrogen storage system, the remaining power of the fuel cell and the charging power allowed by the battery management system, wherein the first preset level is the highest level of all possible vehicle faults; the hydrogen hybrid vehicle is controlled to operate according to the determined vehicle operation mode, thereby overcoming the problem in the prior art that the vehicle operation mode is determined only according to the SOC value of the fuel cell, and there is a direct impact on the user's personal safety due to damage to the high-voltage system in the hydrogen fuel system, and the vehicle safety performance can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 This is a flow chart of a first embodiment of a method for controlling an operating mode of a hydrogen hybrid vehicle of the present application;

[0034] Figure 2 A schematic diagram of a hydrogen hybrid vehicle operating mode control system provided for this application;

[0035] Figure 3 A schematic diagram of a hydrogen fuel system power-on mode provided in one embodiment of the present application;

[0036] Figure 4 A schematic diagram of HMS system fault handling provided in one embodiment of the present application;

[0037] Figure 5 A schematic diagram of a power-off mode of a hydrogen fuel system provided in one embodiment of the present application;

[0038] Figure 6 This is a functional module diagram of an embodiment of a hydrogen hybrid vehicle operation mode control device of the present application;

[0039] Figure 7 This is a schematic diagram of the hardware structure of the hydrogen hybrid vehicle operating mode control device involved in the embodiment of the present application. DETAILED DESCRIPTION

[0040] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0041] In order to make the objectives, technical solutions and advantages of the present application clearer, the implementation methods of the present application will be further described in detail below with reference to the accompanying drawings.

[0042] In a first aspect, an embodiment of the present application provides a method for controlling an operating mode of a hydrogen hybrid vehicle.

[0043] In one embodiment, referring to Figure 1 , Figure 1 This is a flow chart of the first embodiment of the method for controlling the operation mode of a hydrogen hybrid vehicle of the present application. Figure 1 As shown, the hydrogen hybrid vehicle operation mode control method includes:

[0044] Step 110: When the ignition switch of the hydrogen hybrid vehicle is set to the ON position and there is no vehicle fault or no vehicle fault with a fault level equal to a first preset level, the vehicle operation mode is determined according to the state of the fuel-electric system, the state of the hydrogen storage system, the remaining power of the fuel cell, and the charging power allowed by the battery management system, wherein the first preset level is the highest fault level among all possible vehicle faults;

[0045] The hydrogen hybrid vehicle operation mode control method provided in the present application is applied to a hydrogen hybrid vehicle operation mode control system, which includes a vehicle control unit (VCU), an emergency switch, a fuel-electric system controller (FCU), a fuel-electric high voltage (DCDC), a hydrogen storage system controller (HMS), an instrument and a battery management system. Figure 2 A schematic diagram of a hydrogen hybrid vehicle operating mode control system provided in this application. Figure 2 It can be seen that the vehicle controller and the emergency switch interact with each other through the low-voltage line for electrical signals, and the vehicle controller communicates with the fuel-electric system controller, fuel-electric high voltage, hydrogen storage system controller, instrumentation, and battery management system through the CAN line.

[0046] In specific implementation, according to the degree of impact on vehicle safety performance, the vehicle fault is pre-classified into several fault levels, and a response method is determined for each fault level. For example, in this embodiment, the vehicle fault is classified into 4 levels, and the first preset level is the highest level of all possible vehicle faults. In this case, the first preset level is 4. Table 1 is a comparison table of vehicle fault levels and response methods provided in an embodiment of the present application.

[0047] Table 1 Vehicle fault level and response method comparison table

[0048] Failure level VCU Fault Response Instructions 1 Alarm only, no limit on torque or power 2 The power is limited to 50% of the peak value and the speed is limited to 60km / h 3 Limit power to 0% of peak value, 4 Cut off all high voltage of the vehicle

[0049] When the ignition switch of the hydrogen hybrid vehicle is set to the ON position, the VCU, FCU and HMS are awakened and self-checked. The VCU determines whether there is a vehicle fault based on the fault level provided by each system and the fault level of other vehicles detected by itself. If there is a vehicle fault, the VCU compares all fault levels to determine whether there is a vehicle fault with a fault level equal to the first preset level. If there is no vehicle fault with a fault level equal to the first preset level, the highest fault level is sent to the instrument and processed according to the highest fault level. At the same time, the vehicle operation mode is determined according to the state of the fuel-electric system, the state of the hydrogen storage system, the remaining power of the fuel cell and the charging power allowed by the battery management system; if there is a vehicle fault with a fault level equal to the first preset level, the power-on process is prohibited and the power-on failure fault is sent to the instrument. Ensure that the vehicle can operate normally within a safe range at a low fault level and can be powered off in time at a high fault level.

[0050] It can be understood that when there is no vehicle fault, the vehicle operation mode is determined directly based on the state of the fuel-electric system, the state of the hydrogen storage system, the remaining power of the fuel cell and the charging power allowed by the battery management system. The first preset level is the highest level of faults among all possible vehicle faults.

[0051] Step 120: Control the hydrogen hybrid vehicle to operate according to the determined vehicle operation mode.

[0052] After determining the vehicle operating mode, if the vehicle operating mode is pure electric mode, the vehicle is controlled to operate in pure electric mode; if the vehicle operating mode is fuel-electric mode, the vehicle is controlled to operate in fuel-electric mode.

[0053] In this embodiment, when the ignition switch of the hydrogen hybrid vehicle is set to the ON position and there is no vehicle fault or there is no vehicle fault with a fault level equal to the first preset level, the vehicle operation mode is determined according to the state of the fuel-electric system, the state of the hydrogen storage system, the remaining power of the fuel cell and the charging power allowed by the battery management system, and the first preset level is the highest level of all possible vehicle faults; the hydrogen hybrid vehicle is controlled to operate according to the determined vehicle operation mode, which overcomes the problem in the prior art that the vehicle operation mode is determined only according to the SOC value of the fuel cell, and there is a direct impact on the personal safety of the user due to damage to the high-voltage system in the hydrogen fuel system, etc. The vehicle operation mode is determined in combination with the whole vehicle fault, the fuel-electric system fault and the hydrogen storage system fault, so as to improve the safety performance of the vehicle.

[0054] Furthermore, in one embodiment, the determining of the vehicle operation mode according to the state of the fuel-electric system, the state of the hydrogen storage system, the remaining power of the fuel cell, and the charging power allowed by the battery management system includes:

[0055] When the states of the fuel-electric system and the hydrogen storage system are both in a fault-free state, the remaining power of the fuel cell is less than a first preset threshold, and the charging power allowed by the battery management system is greater than a second preset threshold, the vehicle operation mode is determined to be the fuel-electric mode.

[0056] It can be understood that only when both the fuel-electric system and the hydrogen storage system are in a fault-free state can it be ensured that there will be no problems directly affecting the personal safety of users, such as damage to the high-pressure system in the hydrogen fuel system.

[0057] In addition, the vehicle operation mode needs to be determined in combination with the remaining power of the fuel cell and the charging power allowed by the battery management system. Specifically, the fuel-electric system can only be started when the remaining power of the fuel cell is less than the first preset threshold and the charging power allowed by the battery management system is greater than the second preset threshold. At this time, the vehicle operation mode is determined to be the fuel-electric mode; when the status of the fuel-electric system and the hydrogen storage system are both in a fault-free state, the remaining power of the fuel cell is greater than the first preset threshold, or the charging power allowed by the battery management system is less than the second preset threshold, the fuel-electric system cannot be turned on, and the vehicle operation mode is determined to be the pure electric mode. Exemplarily, the second preset threshold is 1000 watts.

[0058] In this embodiment, it is described how to determine whether the vehicle operation mode is the fuel-electric mode or the pure electric mode when both the fuel-electric system and the hydrogen storage system are in a fault-free state, which can improve the safety performance of the vehicle.

[0059] Furthermore, in one embodiment, the determining of the vehicle operation mode according to the state of the fuel-electric system, the state of the hydrogen storage system, the remaining power of the fuel cell, and the charging power allowed by the battery management system includes:

[0060] When the fuel-electric system or the hydrogen storage system is in a fault state, the vehicle operation mode is determined to be a pure electric mode.

[0061] When the VCU self-checks without faults but the FCU or HMS has faults, the vehicle will not be able to enter the fuel-electric mode, but can enter the pure electric mode and send the fault to the instrument, ensuring that the driver can drive the vehicle to the nearest repair station in pure electric mode when knowing that the vehicle has a fault. This can avoid problems that directly affect the personal safety of users due to damage to the high-pressure system in the hydrogen fuel system, and improve the safety performance of the vehicle.

[0062] Figure 3 A schematic diagram of the power-on mode of the hydrogen fuel system provided for an embodiment of the present application determines the vehicle operation mode by comprehensively considering the vehicle fault, FCU status and HMS status, thereby overcoming the problem in the prior art of determining the vehicle operation mode only based on the SOC value of the fuel cell, which directly affects the user's personal safety due to damage to the high-pressure system in the hydrogen fuel system, and can improve the safety performance of the vehicle.

[0063] Furthermore, in one embodiment, the method further includes:

[0064] Step 210: During the operation of the hydrogen hybrid vehicle in the fuel-electric mode, continuously detect whether there is a hydrogen storage system fault;

[0065] Step 220: If there is a hydrogen storage system fault, determine the fault level corresponding to the hydrogen storage system fault;

[0066] Step 230: Determine the open / closed state of the hydrogen storage system bottle valve based on the fault level corresponding to the hydrogen storage system fault.

[0067] In specific implementation, HMS faults are classified into several fault levels in advance according to the degree of impact on vehicle safety performance, and a corresponding handling method is determined for each fault level.

[0068] When a hydrogen hybrid vehicle is running in the fuel-electric mode, the HMS will perform self-checks after startup to continuously detect whether there is a hydrogen storage system fault; the HMS system determines the fault level of the hydrogen storage system fault by itself. Once a fault is found, the fault level corresponding to the hydrogen storage system fault is determined, and an alarm is sent to the VCU. Then, the fault level corresponding to the hydrogen storage system fault is used to determine the open and closed state of the hydrogen storage system bottle valve. If the fault level is low, the hydrogen storage system bottle valve is kept open; if the fault level is high, pre-processing is performed automatically, for example, the hydrogen storage system bottle valve is forcibly closed.

[0069] Exemplarily, HMS faults are divided into three levels. Determining the open and closed state of the hydrogen storage system bottle valve based on the fault level corresponding to the hydrogen storage system fault includes:

[0070] When the fault level corresponding to the hydrogen storage system fault is level one, keep the hydrogen storage system bottle valve in the open state;

[0071] When the fault level corresponding to the hydrogen storage system fault is level 2, after sending a request to close the hydrogen storage system valve, if no instruction to close the hydrogen storage system valve is received within the first preset time, the hydrogen storage system valves are closed in sequence; if an instruction to close the hydrogen storage system valve is received within the first preset time, the hydrogen storage system valves are forcibly closed;

[0072] When the fault level corresponding to the hydrogen storage system fault is level three, the hydrogen storage system bottle valve is forcibly closed.

[0073] In specific implementation, if it is identified as a level 1 fault, an alarm will be sent to the VCU to keep the hydrogen storage system bottle valve in an open state; if it is identified as a level 2 fault, a shutdown request will be sent to the VCU. If a valve closing instruction is received from the VCU within the first preset time, the valve will be directly forced to close and will not respond to the valve opening instruction before the fault is eliminated. If the valve closing instruction is not received from the VCU within the first preset time, the hydrogen storage system bottle valves will be closed in sequence; if it is identified as a level 3 fault, the valve will be directly forced to close and will not respond to the valve opening instruction before the fault is eliminated. Exemplarily, the first preset time is 300s. After closing the valve, switch back to pure electric mode.

[0074] In this embodiment, when the hydrogen fuel system of the vehicle fails, the fault condition is promptly sent to the instrument, and the VCU performs fault processing. For relatively minor faults, the vehicle will switch back to the pure electric mode, and for more serious faults, the vehicle will automatically power off after a period of time, thereby improving the safety performance of hydrogen hybrid vehicles. It is ensured that the vehicle can operate normally within a safe range when the fault level is low, and can be powered off in time when the fault level is high.

[0075] Figure 4 A schematic diagram of HMS system fault handling provided in one embodiment of the present application, Figure 4 In the process, the HMS sends a bottle valve closing command to the VCU without any preconditions and can be received and executed at any time. The extremely high processing priority can be processed in time within the effective processing time when the fault occurs, thereby improving the safety of the entire vehicle. The precondition for the HMS to be allowed to close the bottle valves in sequence (that is, sleep) is that the fuel cell has been shut down and the shutdown purge has been completed to avoid the accumulation of water and unreacted gas generated by the internal reaction of the fuel cell.

[0076] Furthermore, in one embodiment, the method further includes:

[0077] Step 310: During vehicle driving, when it is detected that the highest level of the fault levels corresponding to the vehicle fault is equal to the first preset level, the fault level corresponding to the hydrogen storage system fault is equal to the second preset level, or the emergency switch is triggered, an emergency shutdown command is sent to the fuel-electric system and the duration is recorded;

[0078] Step 320: If the recorded duration reaches the second preset duration and no shutdown completion status is received from the fuel-electric system, the vehicle is controlled to power off at high voltage.

[0079] The first preset level is the highest level of all possible vehicle faults, and exemplarily, the first preset level is 4. The second preset level is the highest level of all possible hydrogen storage system faults, and exemplarily, the second preset level is 3.

[0080] In specific implementation, when there is a level 4 fault in the vehicle or a level 3 fault in the HMS or the emergency switch is valid, the vehicle will start the power-off process, send an emergency shutdown command to the fuel-electric system and start recording the duration. If the recorded duration reaches the second preset duration and the shutdown completion status feedback from the fuel-electric system is not received, the vehicle will be controlled to power off at high voltage. Exemplarily, the second preset duration is 6s. After 6s, regardless of whether the feedback signal from the FCU is received, the vehicle will be powered off at high voltage to ensure the safety of the people in the vehicle.

[0081] In this embodiment, during the driving of the vehicle, when it is detected that the highest level of the fault levels corresponding to the whole vehicle fault is equal to the first preset level, the fault level corresponding to the hydrogen storage system fault is equal to the second preset level, or the emergency switch is triggered, an emergency shutdown command is sent to the fuel-electric system and the duration is started to be recorded; if the recorded duration reaches the second preset duration, and the shutdown completion status is not received from the fuel-electric system, the vehicle high voltage is controlled to be powered off to ensure the safety of the people in the vehicle.

[0082] Figure 5 A schematic diagram of a hydrogen fuel system power-down mode provided in an embodiment of the present application, Figure 5 In the process of vehicle driving, when it is detected that the maximum value of the fault level corresponding to the whole vehicle fault is equal to the first preset level, the fault level corresponding to the hydrogen storage system fault is equal to the second preset level or the emergency switch is triggered, after sending an emergency shutdown command to the fuel-electric system, a valve closing command is sent to the hydrogen storage system; it is determined whether the shutdown completion status feedback from the fuel-electric system is received; if the shutdown completion status feedback from the fuel-electric system is received, after sending a disability command to the fuel-electric system, a power-off permission command is sent to the hydrogen storage system; it is determined whether the fuel-electric system receives a disability signal within a third preset time period; if a disability signal is received, the vehicle high voltage is controlled to be powered off; if no disability signal is received, the process returns to the step of determining whether the fuel-electric system receives a disability signal within the third preset time period.

[0083] Among them, the FCU shutdown command requires the FCU to perform emergency shutdown processing after receiving the command; the FCU disable command requires the FCU to perform low-voltage power-off, at which time the main relay inside the FCU will be disconnected; after the FCU receives the emergency shutdown signal and completes the emergency shutdown processing and feeds back to the VCU, if it does not receive the FCU disable signal for a long time, it will force the vehicle to be powered off at high voltage. This ensures that the vehicle can be powered off in time when a fault occurs to protect the safety of the people in the vehicle.

[0084] In this application, when the hydrogen storage system controller is damaged or the CAN network cannot transmit information in time, the VCU and HMS will automatically enter the next fault handling link after a delay, ensuring that the entire vehicle can be powered off normally within a period of time with less danger.

[0085] In a second aspect, an embodiment of the present application also provides a hydrogen hybrid vehicle operating mode control device.

[0086] In one embodiment, referring to Figure 6 , Figure 6 This is a functional module diagram of an embodiment of the hydrogen hybrid vehicle operation mode control device of the present application. Figure 6 As shown, the hydrogen hybrid vehicle operation mode control device 600 includes:

[0087] The first determination module 601 is used to determine the vehicle operation mode according to the state of the fuel-electric system, the state of the hydrogen storage system, the remaining power of the fuel cell and the charging power allowed by the battery management system when the ignition switch of the hydrogen hybrid vehicle is set to the ON position and there is no vehicle fault or there is no vehicle fault with a fault level equal to a first preset level, wherein the first preset level is the highest fault level among all possible vehicle faults;

[0088] The first control module 602 is used to control the hydrogen hybrid vehicle to operate according to a determined vehicle operation mode.

[0089] Further, in one embodiment, the first determining module is specifically configured to:

[0090] When the states of the fuel-electric system and the hydrogen storage system are both in a fault-free state, the remaining power of the fuel cell is less than a first preset threshold, and the charging power allowed by the battery management system is greater than a second preset threshold, the vehicle operation mode is determined to be the fuel-electric mode.

[0091] Further, in one embodiment, the first determining module is specifically configured to:

[0092] When the fuel-electric system or the hydrogen storage system is in a fault state, the vehicle operation mode is determined to be a pure electric mode.

[0093] Further, in one embodiment, the first determining module is specifically configured to:

[0094] When the states of the fuel-electric system and the hydrogen storage system are both in a fault-free state, the remaining power of the fuel cell is greater than a first preset threshold, or the charging power allowed by the battery management system is less than a second preset threshold, the vehicle operation mode is determined to be a pure electric mode.

[0095] Furthermore, in one embodiment, the hydrogen hybrid vehicle operation mode control device further includes a second determination module, and the second determination module is specifically configured to:

[0096] During the operation of the hydrogen hybrid vehicle in the fuel-electric mode, continuously detect whether there is a hydrogen storage system fault;

[0097] If there is a hydrogen storage system fault, determine the fault level corresponding to the hydrogen storage system fault;

[0098] Based on the fault level corresponding to the hydrogen storage system fault, the open and closed state of the hydrogen storage system bottle valve is determined.

[0099] Further, in one embodiment, the second determining module is specifically configured to:

[0100] When the fault level corresponding to the hydrogen storage system fault is level one, keep the hydrogen storage system bottle valve in the open state;

[0101] When the fault level corresponding to the hydrogen storage system fault is level 2, after sending a request to close the hydrogen storage system valve, if no instruction to close the hydrogen storage system valve is received within the first preset time, the hydrogen storage system valves are closed in sequence; if an instruction to close the hydrogen storage system valve is received within the first preset time, the hydrogen storage system valves are forcibly closed;

[0102] When the fault level corresponding to the hydrogen storage system fault is level three, the hydrogen storage system bottle valve is forcibly closed.

[0103] Furthermore, in one embodiment, the hydrogen hybrid vehicle operation mode control device further includes a second control module, and the second control module is specifically used for:

[0104] During vehicle driving, when it is detected that the highest level of the fault level corresponding to the vehicle fault is equal to the first preset level, the fault level corresponding to the hydrogen storage system fault is equal to the second preset level, or the emergency switch is triggered, an emergency shutdown command is sent to the fuel-electric system and the duration is recorded;

[0105] If the recorded duration reaches the second preset duration and no shutdown completion status is received from the fuel-electric system, the vehicle is controlled to power off at high voltage.

[0106] Among them, the functional implementation of each module in the above-mentioned hydrogen hybrid vehicle operation mode control device corresponds to the various steps in the above-mentioned hydrogen hybrid vehicle operation mode control method embodiment, and its functions and implementation processes are no longer repeated here one by one.

[0107] In a third aspect, an embodiment of the present application provides a hydrogen hybrid vehicle operation mode control device, which may be a personal computer (PC), a laptop computer, a server, or other device with data processing capabilities.

[0108] Reference Figure 7 , Figure 7 Schematic diagram of the hardware structure of the hydrogen hybrid vehicle operation mode control device involved in the embodiment of the present application. In the embodiment of the present application, the hydrogen hybrid vehicle operation mode control device may include a processor, a memory, a communication interface and a communication bus.

[0109] The communication bus may be of any type and is used to interconnect the processor, the memory, and the communication interface.

[0110] The communication interface includes input / output (I / O) interface, physical interface and logical interface, etc., which are used to realize the interconnection of devices inside the hydrogen hybrid vehicle operation mode control device, and the interface used to realize the interconnection between the hydrogen hybrid vehicle operation mode control device and other devices (such as other computing devices or user devices). The physical interface can be an Ethernet interface, a fiber optic interface, an ATM interface, etc.; the user device can be a display, a keyboard, etc.

[0111] The memory can be various types of storage media, such as random access memory (RAM), read-only memory (ROM), non-volatile RAM (NVRAM), flash memory, optical storage, hard disk, programmable ROM (PROM), erasable PROM (EPROM), electrically erasable PROM (EEPROM), etc.

[0112] The processor may be a general-purpose processor, which may call the hydrogen hybrid vehicle operation mode control program stored in the memory and execute the hydrogen hybrid vehicle operation mode control method provided in the embodiment of the present application. For example, the general-purpose processor may be a central processing unit (CPU). The method executed when the hydrogen hybrid vehicle operation mode control program is called may refer to the various embodiments of the hydrogen hybrid vehicle operation mode control method of the present application, which will not be described in detail here.

[0113] Those skilled in the art will understand that Figure 7 The hardware structure shown in the figure does not constitute a limitation on the present application, and may include more or less components than shown in the figure, or combine certain components, or arrange the components differently.

[0114] In a fourth aspect, an embodiment of the present application also provides a computer-readable storage medium.

[0115] The computer-readable storage medium of the present application stores a hydrogen hybrid vehicle operation mode control program, wherein when the hydrogen hybrid vehicle operation mode control program is executed by a processor, the steps of the hydrogen hybrid vehicle operation mode control method as described above are implemented.

[0116] Among them, the method implemented when the hydrogen hybrid vehicle operation mode control program is executed can refer to the various embodiments of the hydrogen hybrid vehicle operation mode control method of the present application, and will not be repeated here.

[0117] It should be noted that the serial numbers of the above-mentioned embodiments of the present application are only for description and do not represent the advantages or disadvantages of the embodiments.

[0118] The terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned drawings are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not limited to the listed steps or units, but optionally includes steps or units that are not listed, or optionally includes other steps or units inherent to these processes, methods, products or devices. The terms "first", "second" and "third" are used to distinguish different objects, etc., and do not represent a sequence, nor do they limit "first", "second" and "third" to different types.

[0119] In the description of the embodiments of the present application, "exemplary", "for example" or "for example" are used to indicate examples, illustrations or descriptions. Any embodiment or design described as "exemplary", "for example" or "for example" in the embodiments of the present application should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of words such as "exemplary", "for example" or "for example" is intended to present related concepts in a specific way.

[0120] In the description of the embodiments of the present application, unless otherwise specified, “ / ” means or, for example, A / B can mean A or B; the “and / or” in the text is merely a description of the association relationship of associated objects, indicating that three relationships may exist, for example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. In addition, in the description of the embodiments of the present application, “multiple” refers to two or more than two.

[0121] In some processes described in the embodiments of the present application, multiple operations or steps that appear in a specific order are included, but it should be understood that these operations or steps may not be executed in the order in which they appear in the embodiments of the present application or in parallel, and the sequence number of the operation is only used to distinguish the different operations, and the sequence number itself does not represent any execution order. In addition, these processes may include more or fewer operations, and these operations or steps may be executed in sequence or in parallel, and these operations or steps may be combined.

[0122] Through the description of the above implementation methods, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be implemented by means of software plus a necessary general hardware platform, and of course by hardware, but in many cases the former is a better implementation method. Based on such an understanding, the technical solution of the present application is essentially or the part that contributes to the prior art can be embodied in the form of a software product, which is stored in a storage medium (such as ROM / RAM, disk, CD) as described above, and includes a number of instructions for a terminal device to execute the methods described in each embodiment of the present application.

[0123] The above are only preferred embodiments of the present application, and are not intended to limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A method for controlling the operation mode of a hydrogen hybrid vehicle, characterized in that: The hydrogen hybrid vehicle operation mode control method comprises: When the ignition switch of the hydrogen hybrid vehicle is set to the ON position and there is no vehicle fault or no vehicle fault with a fault level equal to the first preset level, the vehicle operation mode is determined according to the state of the fuel-electric system, the state of the hydrogen storage system, the remaining power of the fuel cell and the charging power allowed by the battery management system, wherein the first preset level is the highest fault level among all possible vehicle faults; The hydrogen hybrid vehicle is controlled to operate according to a determined vehicle operation mode.

2. The method for controlling the operation mode of a hydrogen hybrid vehicle according to claim 1, characterized in that: The determining of the vehicle operation mode according to the state of the fuel-electric system, the state of the hydrogen storage system, the remaining power of the fuel cell and the charging power allowed by the battery management system includes: When the states of the fuel-electric system and the hydrogen storage system are both in a fault-free state, the remaining power of the fuel cell is less than a first preset threshold, and the charging power allowed by the battery management system is greater than a second preset threshold, the vehicle operation mode is determined to be the fuel-electric mode.

3. The method for controlling the operation mode of a hydrogen hybrid vehicle according to claim 1, characterized in that: The determining of the vehicle operation mode according to the state of the fuel-electric system, the state of the hydrogen storage system, the remaining power of the fuel cell and the charging power allowed by the battery management system includes: When the fuel-electric system or the hydrogen storage system is in a fault state, the vehicle operation mode is determined to be a pure electric mode.

4. The method for controlling the operation mode of a hydrogen hybrid vehicle according to claim 1, characterized in that: The determining of the vehicle operation mode according to the state of the fuel-electric system, the state of the hydrogen storage system, the remaining power of the fuel cell and the charging power allowed by the battery management system includes: When the states of the fuel-electric system and the hydrogen storage system are both in a fault-free state, the remaining power of the fuel cell is greater than a first preset threshold, or the charging power allowed by the battery management system is less than a second preset threshold, the vehicle operation mode is determined to be a pure electric mode.

5. The method for controlling the operation mode of a hydrogen hybrid vehicle according to claim 1, characterized in that: The method further comprises: During the operation of the hydrogen hybrid vehicle in the fuel-electric mode, continuously detect whether there is a hydrogen storage system fault; If there is a hydrogen storage system fault, determine the fault level corresponding to the hydrogen storage system fault; Based on the fault level corresponding to the hydrogen storage system fault, the open and closed state of the hydrogen storage system bottle valve is determined.

6. The method for controlling the operation mode of a hydrogen hybrid vehicle according to claim 5, characterized in that: The method of determining the open / closed state of the hydrogen storage system bottle valve based on the fault level corresponding to the hydrogen storage system fault includes: When the fault level corresponding to the hydrogen storage system fault is level one, keep the hydrogen storage system bottle valve in the open state; When the fault level corresponding to the hydrogen storage system fault is level 2, after sending a request to close the hydrogen storage system valve, if no instruction to close the hydrogen storage system valve is received within the first preset time, the hydrogen storage system valves are closed in sequence; if an instruction to close the hydrogen storage system valve is received within the first preset time, the hydrogen storage system valves are forcibly closed; When the fault level corresponding to the hydrogen storage system fault is level three, the hydrogen storage system bottle valve is forcibly closed.

7. The method for controlling the operation mode of a hydrogen hybrid vehicle according to claim 1, characterized in that: The method further comprises: During vehicle driving, when it is detected that the highest level of the fault level corresponding to the vehicle fault is equal to the first preset level, the fault level corresponding to the hydrogen storage system fault is equal to the second preset level, or the emergency switch is triggered, an emergency shutdown command is sent to the fuel-electric system and the duration is recorded; If the recorded duration reaches the second preset duration and no shutdown completion status is received from the fuel-electric system, the vehicle is controlled to power off at high voltage.

8. A hydrogen hybrid vehicle operation mode control device, characterized in that: The hydrogen hybrid vehicle operation mode control device comprises: A first determination module is used to determine the vehicle operation mode according to the state of the fuel-electric system, the state of the hydrogen storage system, the remaining power of the fuel cell and the charging power allowed by the battery management system when the ignition switch of the hydrogen hybrid vehicle is set to the ON position and there is no vehicle fault or there is no vehicle fault with a fault level equal to a first preset level, wherein the first preset level is the highest fault level among all possible vehicle faults; The first control module is used to control the hydrogen hybrid vehicle to operate according to a determined vehicle operation mode.

9. A hydrogen hybrid vehicle operation mode control device, characterized in that: The hydrogen hybrid vehicle operation mode control device includes a processor, a memory, and a hydrogen hybrid vehicle operation mode control program stored on the memory and executable by the processor, wherein when the hydrogen hybrid vehicle operation mode control program is executed by the processor, the steps of the hydrogen hybrid vehicle operation mode control method as described in any one of claims 1 to 7 are implemented.

10. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a hydrogen hybrid vehicle operation mode control program, wherein when the hydrogen hybrid vehicle operation mode control program is executed by a processor, the steps of the hydrogen hybrid vehicle operation mode control method as described in any one of claims 1 to 7 are implemented.

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