Hydrogen fuel power control device based on 12v vehicle system and vehicle

Abstract

The application provides a hydrogen fuel power control device based on a 12V vehicle system and a vehicle, which adopts a vehicle controller of the 12V vehicle system to detect the electric quantity of a battery pack, controls a first relay to be turned on when the electric quantity is low, provides 24V direct current voltage provided by a storage battery to a wake-up enable end of a hydrogen storage system controller, a hydrogen fuel engine controller and a hydrogen fuel engine heat dissipation module, and wakes up the 24V standard hydrogen storage system controller, the hydrogen fuel engine controller and the hydrogen fuel engine heat dissipation module. The hydrogen fuel power control device based on the 12V vehicle system and the vehicle provided by the application do not need to adjust 12V vehicle accessories, can effectively reduce the implementation cost of the hydrogen fuel engine working under the 24V voltage system and applicable to the 12V vehicle, reduce the research and development cost of the hydrogen fuel range-extended electric vehicle, and improve the market competitiveness of the hydrogen fuel range-extended electric vehicle.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of new energy vehicles, in particular to a hydrogen fuel power control device based on a 12V vehicle system and a vehicle. BACKGROUND

[0002] The 12V voltage system has formed a perfect large-scale production in the field of traditional fuel vehicles, and most of the related accessories and technologies are matched with the 12V system, for example, the working power supply of the navigation instrument, the vehicle-mounted refrigerator, the vehicle-mounted dust collector, the vehicle-mounted telephone and the like is designed as 12V, therefore, the vehicle control system of most of the current electric vehicles is still the 12V system.

[0003] However, due to the limitation of battery technology, the endurance mileage of the electric vehicle is still insufficient, and the long-distance carrying capacity is insufficient, which is not conducive to the development of the electric vehicle, in order to solve the endurance problem of the electric vehicle, the range-extended vehicle with other engines begins to appear, among which, the hydrogen fuel engine has the advantages of environmental protection, high efficiency, fast hydrogen filling, low noise and use of renewable energy, and is more in line with the development direction of energy-saving and emission-reducing and clean energy vehicles.

[0004] However, the hydrogen fuel engine is more suitable for the 24V voltage system, and cannot be directly adapted to the traditional 12V vehicle control system, and it is necessary to re-develop and select the vehicle accessories by changing the working power supply specification of the vehicle control system from 12V to 24V, which has a long development cycle and huge comprehensive development cost, and the development cost will affect the market price of the vehicle and reduce the market competitiveness of the hydrogen fuel range-extended electric vehicle. SUMMARY

[0005] Therefore, the purpose of the present application is to provide a hydrogen fuel power control device based on a 12V vehicle system and a vehicle, so as to solve the problem that the hydrogen fuel power system working under the 24V voltage system cannot be directly applied to the 12V vehicle system, and the development cost of the vehicle control system is high, which greatly increases the development cost of the hydrogen fuel range-extended electric vehicle.

[0006] In one aspect, the present application provides a hydrogen fuel power control device based on a 12V vehicle system, the 12V vehicle system comprising a vehicle controller, the hydrogen fuel power control device comprising a hydrogen storage system controller, a hydrogen fuel engine controller, a storage battery, a first relay and a hydrogen fuel engine heat dissipation module, wherein,

[0007] The storage battery is used to provide working power supply for the hydrogen storage system controller, the hydrogen fuel engine controller and the hydrogen fuel engine heat dissipation module;

[0008] The positive terminal of the storage battery is also connected to the wake-up enable terminals of the hydrogen storage system controller, the hydrogen fuel engine controller and the hydrogen fuel engine heat dissipation module through the first relay, for controlling the wake-up and sleep of the hydrogen storage system controller, the hydrogen fuel engine controller and the hydrogen fuel engine heat dissipation module according to the on-off state of the first relay.

[0009] The vehicle controller and the storage battery are connected across the first relay coil of the first relay, and the vehicle controller is further configured to monitor the power of the battery pack, and when the power of the battery pack is lower than a first preset threshold, pull down the voltage at one end of the first relay coil to below the positive terminal output voltage of the storage battery, control the first relay to be turned on, and wake up the hydrogen storage system controller, the hydrogen fuel engine controller and the hydrogen fuel engine heat dissipation module, and enable the hydrogen fuel engine to output power.

[0010] When the power of the battery pack is higher than a second preset threshold, the voltage at one end of the first relay coil is stopped to be pulled down, so as to control the first relay to be turned off, control the hydrogen storage system controller, the hydrogen fuel engine controller and the hydrogen fuel engine heat dissipation module to sleep, and disable the hydrogen fuel engine.

[0011] In the embodiment, the storage battery is a 24V power supply, and the working power supply specifications of the first relay, the hydrogen storage system controller, the hydrogen fuel engine controller and the hydrogen fuel engine heat dissipation module are all 24V.

[0012] Optionally, the hydrogen fuel power control device further comprises a DC voltage conversion module, configured to convert the power supply of the power battery or power recovery into a 24V DC power supply, and provide the 24V DC power supply to the storage battery, the hydrogen storage system controller, the hydrogen fuel engine controller and the hydrogen fuel engine heat dissipation module.

[0013] Optionally, a first thin film fuse is arranged between the DC voltage conversion module and the storage battery.

[0014] Optionally, a second thin film fuse is arranged between the storage battery and the hydrogen fuel engine controller.

[0015] Optionally, the first relay is connected to the hydrogen storage system controller, the hydrogen fuel engine controller and the hydrogen fuel engine heat dissipation module through a first fuse.

[0016] Optionally, the storage battery is connected to the hydrogen storage system controller and the hydrogen fuel engine heat dissipation module through a second fuse.

[0017] Optionally, the vehicle controller comprises a 12V driven second relay, which is connected in series to the first relay coil of the first relay, for controlling the conduction of the first relay to ground according to the 12V power supply of the 12V vehicle system when it is needed to control the conduction of the first relay, and a current limiting resistor is further connected in series between the first relay coil and the ground.

[0018] The application also provides a vehicle comprising the hydrogen fuel power control device based on the 12V vehicle system.

[0019] The hydrogen fuel power control device based on the 12V vehicle system provided by the application adopts the vehicle controller of the 12V vehicle system to detect the power of the battery pack, controls the conduction of the first relay when the power is low, and provides the 24V direct current voltage provided by the storage battery to the wake-up enable end of the hydrogen storage system controller, the hydrogen fuel engine controller and the hydrogen fuel engine heat dissipation module, and wakes up the 24V specification hydrogen storage system controller, the hydrogen fuel engine controller and the hydrogen fuel engine heat dissipation module, which can effectively enable the hydrogen fuel power output, so that the power supply crosstalk between the hydrogen fuel power control device and the 12V vehicle system is guaranteed, the operation reliability of the 12V vehicle system and the hydrogen fuel power control device is guaranteed, and the 12V vehicle accessories do not need to be adjusted, which can effectively reduce the implementation cost of the hydrogen fuel engine working in the 24V voltage system to the 12V vehicle, reduce the research and development cost of the hydrogen fuel range-extended electric vehicle, and improve the market competitiveness of the hydrogen fuel range-extended electric vehicle. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 The main structure diagram of the hydrogen fuel power control device based on the 12V vehicle system in the embodiment of the application.

[0021] The following specific embodiments will further illustrate the application in conjunction with the above drawings. DETAILED DESCRIPTION

[0022] In order to facilitate the understanding of the application, the application will be described more fully below with reference to the related drawings. Several embodiments of the application are shown in the drawings. However, the application can be realized in many different forms and is not limited to the embodiments described herein. On the contrary, these embodiments are provided to make the disclosure of the application more thorough and comprehensive.

[0023] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there can be an intervening element. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or there can be an intervening element. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description herein is for describing particular embodiments only and is not intended to be limiting of the application. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0025] To solve the problem that the hydrogen fuel power system working under the 24V voltage system cannot be directly applied to the 12V vehicle system, and the electric modification of the vehicle control system has high development cost, which greatly increases the development cost of the hydrogen fuel range-extended electric vehicle, the application provides a hydrogen fuel power control device based on a 12V vehicle system, which adopts a vehicle controller of the 12V vehicle system to detect the power of a battery pack, controls a first relay to be turned on when the power is low, and provides 24V direct current voltage provided by a storage battery to an awakening enable end of a hydrogen storage system controller, a hydrogen fuel engine controller and a hydrogen fuel engine heat dissipation module, so as to awaken the 24V specification hydrogen storage system controller, the hydrogen fuel engine controller and the hydrogen fuel engine heat dissipation module, effectively enable the hydrogen fuel power output, cause power supply cross talk between the hydrogen fuel power control device and the 12V vehicle system, guarantee the operation reliability of the 12V vehicle system and the hydrogen fuel power control device, and do not need to adjust the 12V vehicle accessories, which can effectively reduce the implementation cost of the hydrogen fuel engine working under the 24V voltage system and applied to the 12V vehicle, reduce the development cost of the hydrogen fuel range-extended electric vehicle, and improve the market competitiveness of the hydrogen fuel range-extended electric vehicle.

[0026] Specifically, as shown in Figure 1 The hydrogen fuel power control device based on the 12V vehicle system of the embodiment mainly includes a hydrogen storage system controller 221, a hydrogen fuel engine controller 222, a storage battery 21, a first relay 201 and a hydrogen fuel engine heat dissipation module 223, and the storage battery 21 is used to provide working power for the hydrogen storage system controller 221, the hydrogen fuel engine controller 222 and the hydrogen fuel engine heat dissipation module 223.

[0027] The positive end of the storage battery 21 is also connected to the awakening enable ends of the hydrogen storage system controller 221, the hydrogen fuel engine controller 222 and the hydrogen fuel engine heat dissipation module 223 through the first relay 201, which is used to control the awakening and dormancy of the hydrogen storage system controller 221, the hydrogen fuel engine controller 222 and the hydrogen fuel engine heat dissipation module 223 according to the on-off state of the first relay 201, when the first relay 201 is turned on, the output voltage of the storage battery 21 acts on each awakening enable end, and the hydrogen storage system controller 221, the hydrogen fuel engine controller 222 and the hydrogen fuel engine heat dissipation module 223 are awakened to work.

[0028] Specifically, the hydrogen storage system controller 221 is mainly responsible for controlling and managing the functions of the hydrogen storage system, ensuring the safe and efficient operation of the hydrogen storage system, and ensuring the safety of the vehicle using hydrogen fuel power.

[0029] The vehicle controller 10 and the battery 21 are connected across the first relay coil of the first relay 201, and the vehicle controller 10 is also used to monitor the battery pack power, and when the battery pack power is lower than the first preset threshold, the voltage at one end of the first relay coil is pulled down to below the positive terminal output voltage of the battery 21, so that an electric current appears on the first relay coil, controlling the first relay 201 to conduct, to wake up the hydrogen storage system controller 221, the hydrogen fuel engine controller 222 and the hydrogen fuel engine cooling module 223, to enable the hydrogen fuel engine output power, and after the hydrogen fuel engine is enabled, its output power can be used for charging the battery pack, charging the 12V battery of the 12V vehicle system, charging the battery 21 of the hydrogen fuel power control device 24V, and supplying power to the vehicle power system drive motor.

[0030] When the battery pack power is higher than the second preset threshold, the vehicle controller 10 stops pulling down the voltage at one end of the first relay coil to control the first relay 201 to open, and controls the hydrogen storage system controller 221, the hydrogen fuel engine controller 222 and the hydrogen fuel engine cooling module 223 to sleep, and disables the hydrogen fuel engine.

[0031] In the hydrogen fuel power control device of the embodiment, the battery 201 is a 24V power supply, and the working power supply specifications of the first relay 201, the hydrogen storage system controller 221, the hydrogen fuel engine controller 222 and the hydrogen fuel engine cooling module 223 are all 24V. Among them, the hydrogen fuel engine cooling module 223 can use air cooling or liquid cooling.

[0032] To facilitate the energy circulation of the hydrogen fuel power control device, in the embodiment, the hydrogen fuel power control device further includes a DC voltage conversion module 23 for converting the power supply of the power battery or power recovery into a 24V DC power supply, which is provided to the battery 21, the hydrogen storage system controller 221, the hydrogen fuel engine controller 222 and the hydrogen fuel engine cooling module 223. When the hydrogen fuel engine is disabled, the battery 21 can be charged through the DC voltage conversion module 23 to ensure sufficient power supply of the battery 21, thereby ensuring the reliability of the hydrogen fuel power control device.

[0033] To ensure the safety of electricity and avoid damage to the hydrogen fuel power control device caused by overcurrent failure, in the embodiment, a first thin film fuse MFU1 is provided between the DC voltage conversion module 23 and the battery 21 to avoid damage to the battery 21 caused by overcurrent supply from the outside to the hydrogen fuel power control device.

[0034] In order to improve the working reliability of the hydrogen fuel engine controller, in the embodiment, the second thin film fuse MFU2 is arranged between the storage battery 21 and the hydrogen fuel engine controller 222, and the second thin film fuse MFU2 is arranged only on the working power supply path of the hydrogen fuel engine controller 222, as a special fuse of the hydrogen fuel engine controller 222, which can reduce the power interference of the working module and protect the overcurrent protection effect of the hydrogen fuel engine controller 222.

[0035] In order to improve the reliability of the wake-up control, in the embodiment, the first relay 201 is connected to the hydrogen storage system controller 221, the hydrogen fuel engine controller 222 and the hydrogen fuel engine heat dissipation module 223 through the first fuse FU1, so as to avoid damage of the hydrogen storage system controller 221, the hydrogen fuel engine controller 222 and the hydrogen fuel engine heat dissipation module 223 due to overcurrent of the received wake-up signal.

[0036] In order to further improve the working reliability of the hydrogen storage system controller 222 and the hydrogen fuel engine heat dissipation module 223, in the embodiment, the storage battery 201 is connected to the hydrogen storage system controller 222 and the hydrogen fuel engine heat dissipation module 223 through the second fuse FU2, and the hydrogen storage system controller 222 and the hydrogen fuel engine heat dissipation module 223 share the second fuse FU2, so as to reduce the number of fuses and reduce the cost under the premise of ensuring the power supply installation.

[0037] In a specific example, the vehicle controller 10 includes a 12V-driven second relay, which is connected in series to the first relay coil of the first relay 201, and is used to control the second relay to be conducted to the ground according to the 12V power supply of the 12V vehicle system when the first relay 201 needs to be controlled to be turned on, and a current limiting resistor is further connected in series between the first relay coil and the ground, so that the 24V specification first relay 201 can be effectively controlled according to the 12V vehicle system.

[0038] The application also provides a vehicle comprising the hydrogen fuel power control device based on the 12V vehicle system, which can realize the control of the 24V specification high-efficiency hydrogen fuel power system while keeping the components of the 12V vehicle system unchanged, reduce the implementation cost of the hydrogen fuel extended-range electric vehicle, and improve the market competitiveness of the hydrogen fuel extended-range electric vehicle.

[0039] The hydrogen fuel power control device based on the 12V whole vehicle system and the vehicle provided by the application adopt the whole vehicle controller of the 12V whole vehicle system to detect the electric quantity of the battery pack, control the first relay to be turned on when the electric quantity is low, provide the 24V direct current voltage provided by the storage battery to the wake-up enable end of the hydrogen storage system controller, the hydrogen fuel engine controller and the hydrogen fuel engine heat dissipation module, and wake up the 24V standard hydrogen storage system controller, the hydrogen fuel engine controller and the hydrogen fuel engine heat dissipation module, so that the hydrogen fuel engine working under the 24V voltage system can be effectively applied to the 12V whole vehicle without adjusting the 12V whole vehicle accessories, the implementation cost of the hydrogen fuel engine working under the 24V voltage system to the 12V whole vehicle can be effectively reduced, the research and development cost of the hydrogen fuel extended-range electric vehicle can be reduced, and the market competitiveness of the hydrogen fuel extended-range electric vehicle can be improved.

[0040] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "an example", "a specific example" or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0041] The above-described embodiments only express several specific implementations of the present application, which are described in a more specific and detailed manner, but cannot be understood as the limitation of the patent scope of the present application. It should be noted that, for ordinary skilled in the art, several modifications and improvements can be made without departing from the concept of the present application, which are all within the protection scope of the present application. Therefore, the protection scope of the patent of the present application should be subject to the appended claims.

Claims

1. A hydrogen fuel cell power control device based on a 12V vehicle system, characterized in that, The 12V vehicle system includes a vehicle controller, and the hydrogen fuel cell power control device includes a hydrogen storage system controller, a hydrogen fuel cell engine controller, a battery, a first relay, and a hydrogen fuel cell engine cooling module. The battery is used to provide power to the hydrogen storage system controller, the hydrogen fuel engine controller, and the hydrogen fuel engine cooling module. The positive terminal of the battery is also connected to the wake-up enable terminal of the hydrogen storage system controller, the hydrogen fuel engine controller, and the hydrogen fuel engine heat dissipation module through the first relay, for controlling the wake-up and sleep states of the hydrogen storage system controller, the hydrogen fuel engine controller, and the hydrogen fuel engine heat dissipation module according to the on / off state of the first relay. The vehicle controller and the battery are connected to the two ends of the first relay coil of the first relay. The vehicle controller is also used to monitor the battery pack's charge level. When the battery pack's charge level is lower than a first preset threshold, the voltage at one end of the first relay coil is lowered to below the positive terminal output voltage of the battery, and the first relay is turned on to wake up the hydrogen storage system controller, the hydrogen fuel engine controller, and the hydrogen fuel engine cooling module, and to enable the hydrogen fuel engine to output power. When the battery pack's charge level is higher than the second preset threshold, the voltage at one end of the first relay coil is stopped from being lowered, thereby controlling the first relay to disconnect and putting the hydrogen storage system controller, the hydrogen fuel engine controller, and the hydrogen fuel engine cooling module into hibernation mode, thus disabling the hydrogen fuel engine. The battery is a 24V power source, and the first relay, the hydrogen storage system controller, the hydrogen fuel engine controller, and the hydrogen fuel engine heat dissipation module all operate at 24V.

2. The hydrogen fuel cell power control device based on a 12V vehicle system according to claim 1, characterized in that, The hydrogen fuel power control device also includes a DC transformer module for converting the power battery or power recovery power into 24V DC power, which is supplied to the battery, the hydrogen storage system controller, the hydrogen fuel engine controller, and the hydrogen fuel engine heat dissipation module.

3. The hydrogen fuel cell power control device based on a 12V vehicle system according to claim 2, characterized in that, A first thin-film fuse is provided between the DC transformer module and the battery.

4. The hydrogen fuel cell power control device based on a 12V vehicle system according to claim 1, characterized in that, A second thin-film fuse is provided between the battery and the hydrogen fuel engine controller.

5. The hydrogen fuel cell power control device based on a 12V vehicle system according to claim 1, characterized in that, The first relay is connected to the hydrogen storage system controller, the hydrogen fuel engine controller, and the hydrogen fuel engine cooling module via a first fuse.

6. The hydrogen fuel cell power control device based on a 12V vehicle system according to claim 1, characterized in that, The battery is connected to the hydrogen storage system controller and the hydrogen fuel engine cooling module via a second fuse.

7. The hydrogen fuel cell power control device based on a 12V vehicle system according to claim 1, characterized in that, The vehicle controller includes a second relay driven by 12V. The second relay is connected in series with the first relay coil of the first relay. When it is necessary to control the first relay to conduct, the second relay is controlled to conduct to ground according to the 12V power supply of the 12V vehicle system. A current-limiting resistor is also connected in series between the first relay coil and ground.

8. A vehicle, characterized in that, Includes a hydrogen fuel cell power control device based on a 12V vehicle system as described in any one of claims 1 to 7.

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