Hydrogen fuel power control device based on 12V whole vehicle system and vehicle

Abstract

The invention provides a hydrogen fuel power control device based on a 12V whole vehicle system and a vehicle, which adopt a whole vehicle controller of the 12V whole vehicle system to detect the electric quantity of a battery pack, and control a first relay to be switched on when the electric quantity is low; 24V direct-current voltage provided by the storage battery is provided for awakening enabling ends of the hydrogen storage system controller, the hydrogen fuel engine controller and the hydrogen fuel engine heat dissipation module, and the hydrogen storage system controller, the hydrogen fuel engine controller and the hydrogen fuel engine heat dissipation module of the 24V specification are awakened. According to the hydrogen fuel power control device based on the 12V whole vehicle system and the vehicle, 12V whole vehicle accessories do not need to be adjusted, the implementation cost that a hydrogen fuel engine working under a 24V voltage system is suitable for a 12V whole vehicle can be effectively reduced, the research and development cost of a hydrogen fuel range extending electric vehicle is reduced, and the market competitiveness of the hydrogen fuel range extending electric vehicle is improved.

Description

Technical Field

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

[0002] The 12V voltage system has formed a complete large-scale production in the field of traditional fuel vehicles. Most of the related accessories and technologies are compatible with the 12V system. For example, the working power supply of navigation systems, car refrigerators, car vacuum cleaners, car phones, etc. are all designed to be 12V. Therefore, the vehicle control system of most current electric vehicles is still a 12V system.

[0003] However, due to the limitations of battery technology, the range of electric vehicles is still insufficient, and the long-distance carrying capacity is insufficient, which is not conducive to the development of electric vehicles. In order to solve the range problem of electric vehicles, extended-range models equipped with other engines have begun to appear. Among them, hydrogen fuel engines have the advantages of environmental protection, high efficiency, fast hydrogen filling, low noise, and the use of renewable energy, which is more in line with the development direction of energy conservation, emission reduction and clean energy vehicles.

[0004] However, hydrogen fuel engines are more suitable for 24V voltage systems and cannot be directly adapted to traditional 12V vehicle control systems. Changing the working power specification of the vehicle control system from 12V to 24V requires redevelopment and selection of vehicle accessories, which has a long R&D cycle and huge comprehensive R&D costs. The R&D costs will affect the market price of the vehicle and reduce the market competitiveness of hydrogen fuel extended-range electric vehicles. Summary of the invention

[0005] Based on this, the purpose of the present invention is to provide a hydrogen fuel power control device and vehicle based on a 12V vehicle system, so as to solve the problem that the hydrogen fuel power system working under the 24V voltage system in the prior art cannot be directly applied to the 12V vehicle system, and the research and development cost of the electrical reform of the vehicle control system is high, which will greatly increase the research and development cost of hydrogen fuel extended-range electric vehicles.

[0006] On one hand, the present invention provides a hydrogen fuel power control device based on a 12V vehicle system, wherein the 12V vehicle system includes a vehicle controller, and the hydrogen fuel power control device includes a hydrogen storage system controller, a hydrogen fuel engine controller, a battery, a first relay and a hydrogen fuel engine heat dissipation module, wherein:

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

[0008] 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, and is used to control 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 battery are connected at both ends of the first relay coil of the first relay. The vehicle controller is also used 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 battery, control the first relay to conduct, so as to 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 level of the battery pack is higher than a second preset threshold, stop lowering the voltage at one end of the first relay coil to control the first relay to disconnect, 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] Among them, the 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 cooling module are all 24V.

[0012] Optionally, the hydrogen fuel power control device also includes a DC transformer module for converting the power of the power battery or power recovery into a 24V DC power supply, which is provided to the battery, the hydrogen storage system controller, the hydrogen fuel engine controller and the hydrogen fuel engine cooling module.

[0013] Optionally, a first thin-film fuse is provided between the DC transformer module and the battery.

[0014] Optionally, a second thin-film fuse is provided between the 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 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 includes a second relay driven by 12V, and the second relay is connected in series to the first relay coil of the first relay. When it is necessary to control the first relay to be turned on, the second relay is controlled to be turned on 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 the ground.

[0018] The present invention also provides a vehicle, which includes the above-mentioned 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 present invention adopts the vehicle controller of the 12V vehicle system to detect the power of the battery pack, controls the first relay to be turned on when the power is low, and provides the 24V DC voltage provided by the 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, so as to wake up the 24V specification hydrogen storage system controller, the hydrogen fuel engine controller and the hydrogen fuel engine heat dissipation module, and 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 ensured, and the operating reliability of the 12V vehicle system and the hydrogen fuel power control device is ensured, and there is no need to adjust the 12V vehicle accessories, which can effectively reduce the implementation cost of the hydrogen fuel engine working in the 24V voltage system to be applicable to the 12V vehicle, reduce the research and development cost of hydrogen fuel extended-range electric vehicles, and enhance the market competitiveness of hydrogen fuel extended-range electric vehicles. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the main structure of a hydrogen fuel power control device based on a 12V vehicle system in an embodiment of the present invention.

[0021] The following specific implementation manner will further illustrate the present invention in conjunction with the above-mentioned drawings. DETAILED DESCRIPTION

[0022] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. Several embodiments of the present invention are given in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0023] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. 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 those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0025] In order to solve the problem that the hydrogen fuel power system working under the 24V voltage system in the prior art cannot be directly applied to the 12V vehicle system, and the cost of the electric reform of the vehicle control system is high, which will greatly increase the research and development cost of the hydrogen fuel extended-range electric vehicle. The present invention provides a hydrogen fuel power control device based on a 12V vehicle system, adopts the vehicle controller of the 12V vehicle system to detect the power of the battery pack, controls the first relay to be turned on when the power is low, and provides the 24V DC voltage provided by the 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, wakes up the 24V specification hydrogen storage system controller, the hydrogen fuel engine controller and the hydrogen fuel engine heat dissipation module, 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 eliminated, and the operating reliability of the 12V vehicle system and the hydrogen fuel power control device is guaranteed, and there is no need to adjust the 12V vehicle accessories, which can effectively reduce the realization cost of the hydrogen fuel engine working under the 24V voltage system to be applicable to the 12V vehicle, reduce the research and development cost of the hydrogen fuel extended-range electric vehicle, and enhance the market competitiveness of the hydrogen fuel extended-range electric vehicle.

[0026] Specifically, Figure 1 As shown, the hydrogen fuel power control device based on the 12V vehicle system of this embodiment is mainly controlled by the vehicle controller 10 of the 12V vehicle system. The hydrogen fuel power control device mainly includes a hydrogen storage system controller 221, a hydrogen fuel engine controller 222, a battery 21, a first relay 201 and a hydrogen fuel engine heat dissipation module 223. The battery 21 is used to provide working power to the hydrogen storage system controller 221, the hydrogen fuel engine controller 222 and the hydrogen fuel engine heat dissipation module 223.

[0027] The positive terminal of the battery 21 is also connected to the wake-up enable terminal 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, and is used to control the wake-up and sleep 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 battery 21 acts on each wake-up enable terminal, and the hydrogen storage system controller 221, the hydrogen fuel engine controller 222 and the hydrogen fuel engine heat dissipation module 223 wake up and work.

[0028] Specifically, the hydrogen storage system controller 221 is mainly responsible for controlling and managing various 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 at both ends of the first relay coil of the first relay 201. The vehicle controller 10 is also used to monitor the power of the battery pack, and when the power of the battery pack is lower than the 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 21, so that current appears on the first relay coil, and the first relay 201 is controlled to be turned on to wake up the hydrogen storage system controller 221, the hydrogen fuel engine controller 222 and the hydrogen fuel engine heat dissipation module 223, and enable the hydrogen fuel engine to output power. After the hydrogen fuel engine is enabled, its output power can be used to charge the battery pack, for charging the 12V battery of the 12V vehicle system, for charging the 24V battery 21 of the hydrogen fuel power control device, and for powering the vehicle power system drive motor.

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

[0031] In the hydrogen fuel power control device of this 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 be air-cooled or liquid-cooled.

[0032] To facilitate the energy circulation of the hydrogen fuel power control device, in the present embodiment, the hydrogen fuel power control device further includes a DC transformer module 23 for converting the power source of the power battery or power recovery into a 24V DC power source, which is provided to the battery 21, the hydrogen storage system controller 221, the hydrogen fuel engine controller 222 and the hydrogen fuel engine heat dissipation module 223. When the hydrogen fuel engine is stopped, the DC transformer module 23 can be used to charge the battery 21 to ensure that the battery 21 has sufficient power supply, thereby ensuring the reliability of the hydrogen fuel power control device.

[0033] In order to ensure the safety of electricity use and avoid damage to the hydrogen fuel power control device caused by overcurrent faults, in this embodiment, a first thin film fuse MFU1 is provided between the DC transformer module 23 and the battery 21 to avoid damage to the battery 21 caused by overcurrent of external power supply to the hydrogen fuel power control device.

[0034] In order to improve the working reliability of the hydrogen fuel engine controller, in the present embodiment, a second thin film chip fuse MFU2 is provided between the battery 21 and the hydrogen fuel engine controller 222, and the second thin film chip fuse MFU2 is only arranged on the power supply path of the hydrogen fuel engine controller 222. As a dedicated fuse of the hydrogen fuel engine controller 222, it can reduce the power interference of its working module and ensure the power supply overcurrent protection effect of the hydrogen fuel engine controller 222.

[0035] To improve the reliability of wake-up control, in this 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 to prevent the hydrogen storage system controller 221, the hydrogen fuel engine controller 222 and the hydrogen fuel engine heat dissipation module 223 from being damaged 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 present embodiment, the 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, which can reduce the number of insurance devices and reduce costs while ensuring power supply installation.

[0037] In a specific example, the vehicle controller 10 includes a second relay driven by 12V, and the second relay is connected in series to the first relay coil of the first relay 201. When it is necessary to control the first relay 201 to be turned on, the second relay is controlled to be turned on 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 the ground, so that the first relay 201 with a 24V specification can be effectively controlled according to the 12V vehicle system.

[0038] The present invention also provides a vehicle, which includes the above-mentioned hydrogen fuel power control device based on the 12V vehicle system, which can control the 24V specification of the efficient hydrogen fuel power system while keeping the components of the 12V vehicle system basically unchanged, thereby reducing the implementation cost of hydrogen fuel extended-range electric vehicles and improving the market competitiveness of hydrogen fuel extended-range electric vehicles.

[0039] The hydrogen fuel power control device based on the 12V vehicle system and the vehicle controller of the 12V vehicle system provided by the present invention detect the power of the battery pack, control the first relay to be turned on when the power is low, and provide the 24V DC voltage provided by the 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, so as to wake up the 24V hydrogen storage system controller, the hydrogen fuel engine controller and the hydrogen fuel engine heat dissipation module, without adjusting the 12V vehicle accessories, and can effectively reduce the implementation cost of the hydrogen fuel engine working in the 24V voltage system to adapt to the 12V vehicle, reduce the research and development cost of hydrogen fuel extended-range electric vehicles, and enhance the market competitiveness of hydrogen fuel extended-range electric vehicles.

[0040] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0041] The above-mentioned embodiments only express several specific implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent of the present invention. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A hydrogen fuel power control device based on a 12V vehicle system, characterized in that: The 12V vehicle system includes a vehicle controller, and the hydrogen fuel power control device includes a hydrogen storage system controller, a hydrogen fuel engine controller, a battery, a first relay and a hydrogen fuel engine cooling module, wherein: The battery is used to provide working power for 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, and is used to control 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; The vehicle controller and the battery are connected at both ends of the first relay coil of the first relay. The vehicle controller is also used 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 battery, control the first relay to conduct, so as to 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; When the power level of the battery pack is higher than a second preset threshold, stop lowering the voltage at one end of the first relay coil to control the first relay to disconnect, 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; Among them, the 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 cooling module are all 24V.

2. The hydrogen fuel power control device based on the 12V vehicle system according to claim 1 is 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 a 24V DC power supply, which is provided to the battery, the hydrogen storage system controller, the hydrogen fuel engine controller and the hydrogen fuel engine cooling module.

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

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

5. The hydrogen fuel power control device based on the 12V vehicle system according to claim 1 is characterized in that: 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.

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

7. The hydrogen fuel power control device based on the 12V vehicle system according to claim 1 is characterized in that: The vehicle controller includes a second relay driven by 12V, and the second relay is connected in series to the first relay coil of the first relay. When the first relay needs to be controlled to be turned on, the second relay is controlled to be turned on 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 the ground.

8. A vehicle, characterized in that: It comprises a hydrogen fuel power control device based on a 12V vehicle system according to any one of claims 1 to 7.

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