Hydrogen fuel vehicle type automatic purging control system and vehicle

Abstract

The utility model relates to a hydrogen fuel vehicle type automatic purging control system and a vehicle. The system comprises a whole vehicle mechanical power-off switch, a whole vehicle controller DI module and an awakening module. The whole vehicle mechanical power-off switch comprises a first power-off switch for switching on and switching off a server power supply except a whole vehicle comfort load of the whole vehicle and a second power-off switch for switching on and switching off a power supply of the whole vehicle comfort load; the wake-up module is used for remotely waking up the server in a sleep or shutdown state and starting to run, and the wake-up module is controlled by an ignition lock; comprising a vehicle control unit awakening module, an ON gear awakening power supply relay, a battery management system awakening module, an all-in-one controller awakening module, a battery heat management controller awakening module, a hydrogen engine awakening module, a hydrogen storage system controller awakening module and an instrument awakening module. The vehicle is provided with the system. According to the utility model, the hydrogen fuel vehicle can be automatically purged after the key is closed, the electric equipment of the whole vehicle is automatically dormant after the purge is finished, and the device is suitable for vehicles with hydrogen fuel engines, such as passenger cars, special vehicles, trucks, trailers and the like.

Description

Technical Field

[0001] This utility model belongs to the field of new energy vehicles and relates to an automatic purging control system for hydrogen fuel cell vehicles. It can start purging when the vehicle is powered off, and after purging is completed, it will enter the power-off process normally according to the power-off logic. Each electrical appliance will go into hibernation in turn, so the driver does not need to wait in the vehicle for the purging to be completed before turning off the power and leaving the vehicle. Background Technology

[0002] Currently, hydrogen fuel cell vehicles require purging after shutdown to prevent the hydrogen engine from being damaged by icing in the pipelines. The purging time varies with the ambient temperature and can last up to ten minutes. During purging, the vehicle power switch must not be turned off until the purging is complete. This not only causes the lead-acid battery to drain due to the prolonged power outage, but also requires the driver to wait in the vehicle until the purging is finished before turning off the power and leaving.

[0003] Therefore, the purging system of existing hydrogen fuel cell vehicles needs further optimization. Summary of the Invention

[0004] In order to solve the problem in the prior art that the power switch of the whole vehicle cannot be turned off after the hydrogen engine of the hydrogen fuel cell vehicle is stopped for purging, this utility model proposes an automatic purging control system for hydrogen fuel cell vehicles that can enter the purging process when the vehicle is powered off and put the various electrical appliances into hibernation after the purging is completed, as well as a vehicle equipped with the purging control system.

[0005] The technical solution adopted in this utility model is:

[0006] The aforementioned automatic purging control system for hydrogen fuel cell vehicles includes a vehicle mechanical power-off switch, a vehicle controller DI module, and a wake-up module. The vehicle mechanical power-off switch includes a first power-off switch and a second power-off switch. The first power-off switch is used to switch the power supply on and off for all servers except for vehicle comfort loads. The second power-off switch is used to switch the power supply on and off for vehicle comfort loads. The vehicle controller DI module is used for digital signal input and is located in the vehicle controller. The wake-up module is used to remotely wake up servers in a sleep or shutdown state and start them running. The wake-up power is controlled by the ignition lock and includes a vehicle controller wake-up module, an ON-position wake-up power relay, a battery management system wake-up module, a multi-function controller wake-up module, a battery thermal management controller wake-up module, a hydrogen engine wake-up module, a hydrogen storage system controller wake-up module, and an instrument panel wake-up module.

[0007] The aforementioned automatic purging control system for hydrogen fuel cell vehicles includes: a server for the entire vehicle, excluding the overall vehicle comfort load, comprising a vehicle controller, a battery management system, a multi-function controller, a hydrogen engine controller, a hydrogen storage system controller, a battery thermal management controller, and instruments; and a wake-up module for the battery management system, multi-function controller, hydrogen engine controller, hydrogen storage system controller, battery thermal management controller, and instruments, respectively located within the battery management system, multi-function controller, hydrogen engine controller, hydrogen storage system controller, battery thermal management controller, and instruments.

[0008] The automatic purging control system for hydrogen fuel cell vehicles includes an ignition lock located in the input circuit of the vehicle controller, with its output connected to the vehicle controller wake-up module and its input connected to the output of the first power-off switch.

[0009] The automatic purging control system for hydrogen fuel cell vehicles, wherein: the vehicle controller wake-up module is located in the input circuit of the vehicle controller, and the vehicle controller wake-up power is controlled by the ignition lock.

[0010] The automatic purging control system for hydrogen fuel cell vehicles, wherein: the ON position wake-up power relay is located in the output circuit of the vehicle controller, with its input terminal connected to the vehicle controller and its output terminal connected in parallel to the battery management system, multi-function controller, hydrogen engine controller, hydrogen storage system controller, battery thermal management controller, and instrument.

[0011] The aforementioned automatic purging control system for hydrogen fuel cell vehicles includes, wherein: the vehicle comfort loads include an inverter, a charger port, and an onboard refrigerator.

[0012] The aforementioned vehicle has the automatic purging control system for hydrogen fuel cell vehicles described above. Beneficial effects

[0013] This utility model relates to an automatic purging control system for hydrogen fuel cell vehicles. The vehicle controller uses a time-delay relay to control the high-voltage component controllers to wake up and power off the power supply. Furthermore, a complete power-off logic and sleep conditions ensure the safe power-off of the entire vehicle. By putting each controller into sleep mode, a low-power mode is entered, avoiding the depletion of the lead-acid battery caused by continuous power-off for a certain period of time. Since the vehicle enters the purging process after power-off, the power-off process will proceed normally after the purging is completed, and each electrical appliance will enter sleep mode in sequence. The driver does not need to wait in the vehicle for the purging to finish before powering off and returning to work. Attached Figure Description

[0014] Figure 1This is a schematic diagram of the automatic purging control system for hydrogen fuel cell vehicles of this utility model.

[0015] Figure 2 This is a circuit diagram of the automatic purging control system for hydrogen fuel cell vehicles of this utility model;

[0016] Figure 3 This is a flowchart illustrating the power-off process of the automatic purging control system for hydrogen fuel cell vehicles according to this utility model. Detailed Implementation

[0017] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0018] In the description of this application, it should be noted that, unless otherwise explicitly specified and limited, the term "connection" should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a connection that allows communication between components; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal communication between two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances. The following will describe some embodiments of this application in detail with reference to the accompanying drawings.

[0019] The embodiments of this application will be further described below with reference to the accompanying drawings.

[0020] like Figures 1 to 3 As shown in the embodiment of this application, an automatic purging control system for a hydrogen fuel cell vehicle includes a vehicle mechanical power-off switch 1, a vehicle controller DI module 2, and a wake-up module 3.

[0021] The vehicle mechanical power-off switch 1 includes a first power-off switch 11 and a second power-off switch 12;

[0022] The first power-off switch 11 is used to switch the power supply of the entire vehicle except for the comfort load of the vehicle. It is electrically connected to the vehicle controller 111, battery management system 112, multi-function controller 113, hydrogen engine controller 114, hydrogen storage system controller 115, battery thermal management controller 116 and instrument panel 117, etc., and controls the constant power of the vehicle controller 111, battery management system 112, multi-function controller 113, hydrogen engine controller 114, hydrogen storage system controller 115, battery thermal management controller 116 and instrument panel 117, etc.

[0023] The second power-off switch 12 is used to switch the power supply on and off of the vehicle comfort load 121, electrically connects the vehicle comfort load 121, and controls the comfort load; the vehicle comfort load 121 includes, but is not limited to, inverters, charger ports, car refrigerators, etc.

[0024] The vehicle controller DI module 2 is used for digital signal input and is located in the vehicle controller 111.

[0025] The wake-up module 3 is used to remotely wake up and start the server from a sleep or shutdown state. The wake-up power is controlled by the ignition lock 30. It includes a vehicle controller wake-up module 31, an ON-position wake-up power relay 32, a battery management system wake-up module 33, an all-in-one controller wake-up module 34, a battery thermal management controller wake-up module 35, a hydrogen engine wake-up module 36, a hydrogen storage system controller wake-up module 37, and an instrument panel wake-up module 38. The ignition lock 30 is located in the input circuit of the vehicle controller 111, with its output connected to the vehicle controller wake-up module 31 and its input connected to the output of the first power-off switch 11. The vehicle controller wake-up module 31 is located in the input circuit of the vehicle controller 111, and the wake-up power for the vehicle controller 111 is controlled by the ignition lock 30. The ON-position wake-up power relay 32 is installed in the output circuit of the vehicle controller 111. Its input is connected to the vehicle controller 111, and its output is connected to parallel servers including the battery management system 112, multi-function controller 113, hydrogen engine controller 114, hydrogen storage system controller 115, battery thermal management controller 116, and instrument cluster 117. This allows for sequential control of these servers. The battery management system wake-up module 33, multi-function controller wake-up module 34, battery thermal management controller wake-up module 35, hydrogen engine wake-up module 36, hydrogen storage system controller wake-up module 37, and instrument cluster wake-up module 38 are sequentially installed in the battery management system 112, multi-function controller 113, hydrogen engine controller 114, hydrogen storage system controller 115, battery thermal management controller 116, and instrument cluster 117. When a wake-up request is sent by a wake-up source, each wake-up module identifies and processes the request, then wakes up each server from sleep or shutdown state.

[0026] The circuit principle of the automatic purging control system for this hydrogen fuel cell vehicle is as follows: Figure 2 As shown:

[0027] In the normal power state, mechanical switches A and B are closed, the ignition lock is in the OFF position, the wake-up power is disconnected, and the normal power circuits of the vehicle controller, battery management system, multi-function controller, hydrogen engine controller, hydrogen storage system controller, battery thermal management controller, and instrument cluster are connected; the vehicle comfort load working circuit is connected.

[0028] When the machine is in the standby purging state, mechanical switch B is open, and the vehicle's comfort load is de-energized; mechanical switch A is closed, the ignition lock is in the ON position, the wake-up power is turned on, the vehicle controller wake-up module works, and the standby purging process begins.

[0029] like Figure 3 As shown, the power-off process of the automatic purging control system for hydrogen fuel cell vehicles of this utility model is as follows:

[0030] After the vehicle controller's wake-up power is cut off, the vehicle enters the power-down process. The hydrogen stack begins purging, and the instrument panel indicates that purging is in progress. Simultaneously, the enable signals for high-voltage electrical components such as the motor controller, air pump, oil pump, PTC, air conditioning, and heater are stopped. The high-voltage accessory relays are then disconnected, followed by the main positive relay. After purging is complete, the vehicle controller's delay ON pin is disconnected, de-energizing one ON-position wake-up power relay. This relay controls the wake-up power for the instrument panel, battery management system, battery thermal management controller, multi-function controller, hydrogen engine controller, and hydrogen storage system controller. If the wake-up power for any high-voltage electrical component is lost, the power-down process continues by disconnecting the DC / DC enable, the DC / DC high-voltage relay, and the main negative relay. Subsequently, each electrical component automatically enters sleep mode according to the sleep conditions, the instrument panel turns off, and the vehicle power-down process is complete. After entering sleep mode, all electrical components enter a low-power mode, and no messages are allowed to be sent through any CAN channel.

[0031] This application provides a vehicle that has the aforementioned automatic purging control system for hydrogen fuel cell vehicles.

[0032] This utility model relates to an automatic purging control system for hydrogen fuel cell vehicles. By incorporating two mechanical power-off switches, the system disconnects the vehicle's power supply and the comfort loads, respectively. Drivers can simply turn off the key and disable the mechanical switches for the comfort loads to end their shift without waiting for purging. This system enables hydrogen fuel cell vehicles to automatically initiate purging when the key is turned off, and automatically shut down all vehicle electrical equipment after purging. It is suitable for buses, special-purpose vehicles, trucks, and trailers equipped with hydrogen fuel cell engines. This utility model offers low installation costs, is economical and practical, and reduces unnecessary waiting time for drivers.

[0033] It will be apparent to those skilled in the art that this application is not limited to the details of the exemplary embodiments described above, and that this application can be implemented in other specific forms without departing from the spirit or essential characteristics of this application. Therefore, the embodiments should be regarded as exemplary and non-limiting in all respects, and the scope of this application is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be embraced within this application.

[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application and are not intended to limit it. Although this application has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this application without departing from the spirit and scope of the technical solutions of this application.

Claims

1. An automatic purging control system for hydrogen fuel cell vehicles, characterized in that: The system includes a vehicle mechanical power-off switch, a vehicle controller DI module, and a wake-up module; The vehicle mechanical power-off switch includes a first power-off switch and a second power-off switch; the first power-off switch is used to switch the power supply on and off for the server in the entire vehicle except for the vehicle's comfort load; the second power-off switch is used to switch the power supply on and off for the vehicle's comfort load. The vehicle controller DI module is used for digital signal input and is located in the vehicle controller. The wake-up module is used to remotely wake up the server in a sleep or shutdown state and start it running. The wake-up power is controlled by the ignition lock and includes a vehicle controller wake-up module, an ON position wake-up power relay, a battery management system wake-up module, an all-in-one controller wake-up module, a battery thermal management controller wake-up module, a hydrogen engine wake-up module, a hydrogen storage system controller wake-up module, and an instrument wake-up module.

2. The automatic purging control system for hydrogen fuel cell vehicles as described in claim 1, characterized in that: The server, excluding the overall vehicle comfort load, includes a vehicle controller, battery management system, multi-function controller, hydrogen engine controller, hydrogen storage system controller, battery thermal management controller, and instruments, and controls the vehicle controller, battery management system, multi-function controller, hydrogen engine controller, hydrogen storage system controller, battery thermal management controller, and instruments. The battery management system wake-up module, the multi-function controller wake-up module, the battery thermal management controller wake-up module, the hydrogen engine wake-up module, the hydrogen storage system controller wake-up module, and the instrument wake-up module are respectively installed in the battery management system, the multi-function controller, the hydrogen engine controller, the hydrogen storage system controller, the battery thermal management controller, and the instrument.

3. The automatic purging control system for hydrogen fuel cell vehicles as described in claim 2, characterized in that: The ignition lock is located in the input circuit of the vehicle controller, with its output terminal connected to the vehicle controller wake-up module and its input terminal connected to the output terminal of the first power-off switch.

4. The automatic purging control system for hydrogen fuel cell vehicles as described in claim 2, characterized in that: The vehicle controller wake-up module is located in the input circuit of the vehicle controller, and the vehicle controller wake-up power is controlled by the ignition lock.

5. The automatic purging control system for hydrogen fuel cell vehicles as described in claim 2, characterized in that: The ON position wake-up power relay is located in the output circuit of the vehicle controller. Its input terminal is connected to the vehicle controller, and its output terminal is connected in parallel to the battery management system, multi-function controller, hydrogen engine controller, hydrogen storage system controller, battery thermal management controller, and instrument.

6. The automatic purging control system for hydrogen fuel cell vehicles as described in claim 1, characterized in that: The vehicle comfort loads include the inverter, charger port, and vehicle refrigerator.

7. A vehicle, characterized in that: The vehicle has an automatic purging control system for hydrogen fuel cell vehicles as described in any one of claims 1-6.

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