Hydrogen system control system, method, device, equipment and medium

Abstract

The invention discloses a hydrogen system control system, a hydrogen system control method, a hydrogen system control device, hydrogen system control equipment and a medium, and is applied to the technical field of fuel cells. If the FCU and the VCU determine that the hydrogen system does not have a first-grade fault and a second-grade fault based on the current operation state data, a cylinder valve closing instruction is sent to the HCU, and if the HCU determines that the hydrogen system has the first-grade fault based on the current operation state data, the cylinder valve is controlled to be closed. And if it is determined that the hydrogen system does not have the first-grade fault and the second-grade fault based on the current operation state information, controlling the cylinder valve to be closed when a cylinder valve closing instruction sent by the FCU and / or the VCU is received or it is determined that the cylinder valve closing instruction sent by the FCU or the VCU is not received beyond the set duration, therefore, timeliness and accuracy of fault detection and processing of the hydrogen system are achieved, false alarm is prevented, and safety is high.

Description

Technical Field

[0001] The present application relates to the field of fuel cell technology, and in particular to a hydrogen system control system, method, device, equipment and medium. Background Art

[0002] With the rapid development of fuel cell systems, new energy vehicles based on fuel cell systems have become an important development direction of the automotive industry. New energy vehicles have gradually entered industrialization with their advantages of zero emissions, long driving range, and fast hydrogen refueling. The safety of the hydrogen system in the fuel cell system in each use link of new energy vehicles is of great significance to the widespread application of new energy vehicles. However, the existing technology for fault diagnosis and processing of hydrogen systems often has problems such as slow response and false alarms, which affects the driving experience and comfort of new energy vehicles. Summary of the invention

[0003] The present application provides a hydrogen system control system, method, device, equipment and medium to solve the problem of poor timeliness and accuracy in the prior art for hydrogen system fault detection and processing. Specifically, the technical solution provided by the present application is as follows:

[0004] In a first aspect, the present application provides a hydrogen system control system, including an HCU (Hydrogen Control Unit), an FCU (Fuel cell Control Unit) and a VCU (Vehicle Control Unit); the HCU is connected to the FCU and the VCU for communication, and the FCU is connected to the VCU for communication;

[0005] HCU, used for collecting the current operating status data of the hydrogen system during the operation of the fuel cell system, and sending the current operating status data of the hydrogen system to the FCU and VCU; if it is determined based on the current operating status data of the hydrogen system that the hydrogen system has a first-level fault, the bottle valve in the hydrogen system is controlled to be closed; if it is determined based on the current operating status information of the hydrogen system that the hydrogen system has a second-level fault and no first-level fault has occurred, then when it is determined that the bottle valve closing condition is met, the bottle valve in the hydrogen system is controlled to be closed; wherein, the bottle valve closing condition is receiving a bottle valve closing instruction sent by the FCU and / or VCU, or not receiving a bottle valve closing instruction sent by the FCU or VCU for a set time; wherein, the severity of the first-level fault is higher than the severity of the second-level fault;

[0006] The FCU and VCU are used to send a bottle valve closing instruction to the HCU if it is determined based on the current operating status data of the hydrogen system that the hydrogen system has a second-level fault and no first-level fault has occurred.

[0007] In a second aspect, the present application provides a hydrogen system control method, comprising:

[0008] During the operation of the fuel cell system, the current operating status data of the hydrogen system is collected;

[0009] Send the current operating status data of the hydrogen system to the FCU and the VCU to trigger the FCU and the VCU to return the bottle valve closing instruction when determining that the hydrogen system has a second-level fault based on the current operating status data of the hydrogen system and has not had a first-level fault;

[0010] If it is determined based on the current operating status data of the hydrogen system that the hydrogen system has a first-level fault, the bottle valve in the hydrogen system is controlled to be closed; wherein the severity of the first-level fault is higher than the severity of the second-level fault;

[0011] If it is determined based on the current operating status information of the hydrogen system that a second-level fault has occurred in the hydrogen system and no first-level fault has occurred, then when it is determined that the bottle valve closing condition is met, the bottle valve in the hydrogen system is controlled to close; wherein, the bottle valve closing condition is receiving a bottle valve closing instruction sent by the FCU and / or VCU, or not receiving a bottle valve closing instruction sent by the FCU or VCU for a set time period.

[0012] In a third aspect, the present application provides another hydrogen system control method, comprising:

[0013] During the operation of the fuel cell system, receiving the current operating status data of the hydrogen system sent by the HCU;

[0014] If it is determined based on the current operating status data of the hydrogen system that a second-level fault has occurred in the hydrogen system and no first-level fault has occurred, a bottle valve closing instruction is sent to the HCU, so that after the HCU determines based on the current operating status information of the hydrogen system that a second-level fault has occurred in the hydrogen system and no first-level fault has occurred, when it is determined that the bottle valve closing conditions are met, the bottle valves in the hydrogen system are controlled to be closed; wherein the bottle valve closing conditions are receiving a bottle valve closing instruction, or not receiving a bottle valve closing instruction for a set period of time.

[0015] In a fourth aspect, the present application provides a hydrogen system control device, comprising:

[0016] A data acquisition unit, used to collect current operating status data of the hydrogen system during the operation of the fuel cell system;

[0017] A data forwarding unit, used to send the current operating status data of the hydrogen system to the FCU and the VCU, so as to trigger the FCU and the VCU to return a bottle valve closing instruction when determining that the hydrogen system has a second-level fault based on the current operating status data of the hydrogen system and has not had a first-level fault;

[0018] A bottle valve control unit is used to control the bottle valves in the hydrogen system to close if it is determined based on the current operating status data of the hydrogen system that a first-level fault occurs in the hydrogen system; if it is determined based on the current operating status information of the hydrogen system that a second-level fault occurs in the hydrogen system and no first-level fault occurs, then when it is determined that the bottle valve closing condition is met, control the bottle valves in the hydrogen system to close; wherein the bottle valve closing condition is receiving a bottle valve closing instruction sent by the FCU and / or VCU, or failing to receive a bottle valve closing instruction sent by the FCU or VCU for a set time; the severity of the first-level fault is higher than the severity of the second-level fault.

[0019] In a fifth aspect, the present application provides another hydrogen system control device, comprising:

[0020] A data receiving unit, used to receive the current operating status data of the hydrogen system sent by the HCU during the operation of the fuel cell system;

[0021] The instruction issuing unit is used for sending a bottle valve closing instruction to the HCU if it is determined based on the current operating status data of the hydrogen system that the hydrogen system has a second-level fault and no first-level fault, so that after the HCU determines based on the current operating status information of the hydrogen system that the hydrogen system has a second-level fault and no first-level fault, when it is determined that the bottle valve closing condition is met, it controls the bottle valve in the hydrogen system to close; wherein the bottle valve closing condition is receiving the bottle valve closing instruction, or not receiving the bottle valve closing instruction for a set time period.

[0022] In a sixth aspect, the present application provides a hydrogen system control device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein when the processor executes the computer program, the hydrogen system control method provided in the second aspect or the third aspect is implemented.

[0023] In a seventh aspect, the present application provides a computer-readable storage medium, which stores computer instructions. When the computer instructions are executed by a processor, the hydrogen system control method provided in the second aspect or the third aspect is implemented.

[0024] The beneficial effects of this application are as follows:

[0025] In the present application, during the operation of the fuel cell, the HCU is used to detect whether the hydrogen system has a first-level fault and a second-level fault based on the current operating status information of the hydrogen system, and when the first-level fault is detected in the hydrogen system, the bottle valve in the hydrogen system is directly controlled to be closed. When it is detected that the hydrogen system does not have a first-level fault but has a second-level fault, the bottle valve in the hydrogen system is controlled to be closed after the bottle valve closing condition is determined to be met. This can achieve timely detection and processing of hydrogen system faults of different severities, thereby improving the response efficiency of hydrogen system faults, and further improving the safety of the fuel cell system. At the same time, by using the HCU to send the current operating status information of the hydrogen system to the FCU and VCU to synchronously detect whether the hydrogen system has a first-level fault and a second-level fault, and after determining that the hydrogen system has a second-level fault and does not have a first-level fault, a bottle valve closing instruction is returned to the HCU, so that multiple diagnosis of hydrogen system faults of different severities can be achieved, thereby improving the accuracy of hydrogen system fault detection, and further effectively preventing false alarms, and improving the driving experience and comfort of new energy vehicles.

[0026] Other features and advantages of the present application will be described in the subsequent description, and in part, will become apparent from the description, or will be understood by practicing the present application. The purpose and other advantages of the present application can be realized and obtained by the structures specifically pointed out in the written description, claims, and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0028] Figure 1 This is a schematic diagram of the composition structure of the hydrogen system control system in the embodiment of the present application;

[0029] Figure 2 This is a schematic diagram of an overview of a hydrogen system control method in an embodiment of the present application;

[0030] Figure 3 This is a schematic diagram of an overview of another hydrogen system control method in an embodiment of the present application;

[0031] Figure 4 This is a schematic diagram of the interactive process of the hydrogen system control method in the embodiment of the present application;

[0032] Figure 5 This is a functional structure diagram of a hydrogen system control device in an embodiment of the present application;

[0033] Figure 6This is a functional structure diagram of another hydrogen system control device in an embodiment of the present application;

[0034] Figure 7 Schematic diagram of the hardware structure of the hydrogen system control device in the embodiment of the present application. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical solution and beneficial effects of this application clearer, the technical solution in the embodiment of this application will be clearly and completely described below in conjunction with the drawings in the embodiment of this application. Obviously, the described embodiment is only a part of the embodiment of this application, not all the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0036] In order to facilitate those skilled in the art to better understand the present application, the technical terms involved in the present application are briefly introduced below.

[0037] VCU is the central control unit of new energy vehicles and the core controller of new energy vehicles.

[0038] FCU is a system in the fuel cell system that collects and processes the status of all sensors and actuators in the fuel cell system and feeds back to the VCU.

[0039] HCU is a system in the fuel cell system that manages the on-board hydrogen system and detects and alarms the hydrogen safety of the entire vehicle. It receives control instructions from FCU and VCU and outputs signals to FCU and VCU.

[0040] HMS is the electronic control unit of the hydrogen storage system of the fuel cell system. It is used to manage the hydrogen storage system (such as hydrogen refueling and hydrogen supply), detect and alarm the hydrogen safety of the whole vehicle, output control signals to the whole vehicle (including hydrogen safety line and hydrogen SOC), and detect the vehicle's input signal hydrogen safety line, hydrogen refueling switch, replacement signal, etc.

[0041] A hydrogen system failure refers to various failures that occur in a hydrogen system. In the present application, a hydrogen system failure is classified into levels according to their severity. For example, a hydrogen system failure may include a first-level failure and a second-level failure, wherein a first-level failure is a hydrogen system failure with a failure severity higher than a set threshold, and a second-level failure is a hydrogen system failure with a failure severity not higher than a set threshold. For example, assuming that a hydrogen system failure includes a minor failure, a medium failure, and a major failure, a first-level failure may be a major failure with a failure severity higher than a set threshold, and a second-level failure may be a medium failure with a failure severity not higher than a set threshold. Of course, a second-level failure may also be a medium failure and a minor failure, which may be flexibly set according to the actual severity of the failure. For example, only hydrogen system failures that affect safety are included in the second-level failures, and hydrogen system failures that have no impact on safety are not included in the second-level failures.

[0042] It should be noted that the "first", "second", etc. mentioned in this application are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that such terms can be interchanged where appropriate, so that the embodiments described herein can be implemented in an order other than that illustrated or described herein. In addition, the "and / or" mentioned in this application describes the association relationship of associated objects, indicating that three relationships may exist, for example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. The character " / " generally indicates that the objects associated before and after are in an "or" relationship.

[0043] After introducing the technical terms involved in this application, the application scenarios and design concepts of this application are briefly introduced.

[0044] In new energy vehicles, in order to ensure the safety of the fuel cell system, the VCU often collects the status and feedback data of various sensors and actuators to perform hydrogen system fault detection, and then controls the hydrogen system accordingly based on the fault detection results of the hydrogen system. This method of VCU analyzing the data to see if there is a fault and then issuing relevant instructions often leads to problems such as slow response and false alarms, thereby affecting the driving experience and comfort of new energy vehicles.

[0045] To this end, in the present application, during the operation of the fuel cell system, the HCU collects the current operating status data of the hydrogen system, and performs hydrogen system fault detection based on the current operating status data of the hydrogen system, and sends the current operating status data of the hydrogen system to the FCU and VCU to trigger the FCU and VCU to synchronously perform hydrogen system fault detection based on the current operating status data of the hydrogen system, and sends a bottle valve closing instruction to the HCU when it is determined that a second-level fault has occurred in the hydrogen system and no first-level fault has occurred. When the HCU determines that a first-level fault has occurred in the hydrogen system based on the current operating status data of the hydrogen system, the HCU directly controls the bottle valve in the hydrogen system to close. When it is determined that a second-level fault has occurred in the hydrogen system based on the current operating status information of the hydrogen system and no first-level fault has occurred, after receiving the bottle valve closing instruction sent by the FCU and / or VCU, or after the bottle valve closing instruction sent by the FCU or VCU is not received for a set time, the bottle valve in the hydrogen system is controlled to close. In this way, during the operation of the fuel cell, the HCU is used to detect whether the hydrogen system has a first-level fault and a second-level fault based on the current operating status information of the hydrogen system, and when the first-level fault is detected in the hydrogen system, the bottle valve in the hydrogen system is directly controlled to be closed. When it is detected that the hydrogen system does not have a first-level fault but a second-level fault occurs, the bottle valve in the hydrogen system is controlled to be closed after determining that the bottle valve closing condition is met, so that timely detection and processing of hydrogen system faults of different severities can be achieved, thereby improving the response efficiency of hydrogen system faults, and further improving the safety of the fuel cell system. At the same time, by using the HCU to send the current operating status information of the hydrogen system to the FCU and VCU to synchronously detect whether the hydrogen system has a first-level fault and a second-level fault, and after determining that the hydrogen system has a second-level fault and does not have a first-level fault, a bottle valve closing instruction is returned to the HCU, so that multiple diagnosis of hydrogen system faults of different severities can be achieved, thereby improving the accuracy of hydrogen system fault detection, and further effectively preventing false alarms, and improving the driving experience and comfort of new energy vehicles.

[0046] After introducing the application scenarios and design ideas of the present application, the technical solutions provided by the present application are described in detail below.

[0047] The present application embodiment provides a hydrogen system control system, see Figure 1 As shown, the hydrogen system control system 100 provided in the embodiment of the present application includes an HCU, an FCU and a VCU; the HCU is respectively connected to the FCU and the VCU for communication, and the FCU is connected to the VCU for communication;

[0048] HCU, used for collecting the current operating status data of the hydrogen system during the operation of the fuel cell system, and sending the current operating status data of the hydrogen system to the FCU and VCU; if it is determined based on the current operating status data of the hydrogen system that the hydrogen system has a first-level fault, the bottle valve in the hydrogen system is controlled to be closed; if it is determined based on the current operating status information of the hydrogen system that the hydrogen system has a second-level fault and no first-level fault has occurred, then when it is determined that the bottle valve closing condition is met, the bottle valve in the hydrogen system is controlled to be closed; wherein, the bottle valve closing condition is receiving a bottle valve closing instruction sent by the FCU and / or VCU, or not receiving a bottle valve closing instruction sent by the FCU or VCU for a set time; wherein, the severity of the first-level fault is higher than the severity of the second-level fault;

[0049] The FCU and VCU are used to send a bottle valve closing instruction to the HCU if it is determined based on the current operating status data of the hydrogen system that the hydrogen system has a second-level fault and no first-level fault has occurred.

[0050] In one possible implementation, the FCU and the VCU are also used to control the fuel cell system to emergency stop if a first-level fault is determined to occur in the hydrogen system based on the current operating status data of the hydrogen system; and to control the fuel cell system to shut down if a second-level fault is determined to occur in the hydrogen system based on the current operating status data of the hydrogen system and no first-level fault occurs.

[0051] In a possible implementation, the HCU is further configured to control the bottle valve in the hydrogen system to close when detecting that the current hydrogen concentration of the hydrogen system is not lower than a set threshold value, and to send a high voltage power-down instruction to the FCU and the VCU;

[0052] The FCU and VCU are also used to perform a high-voltage power-off operation on the fuel cell system when receiving a high-voltage power-off instruction sent by the HCU.

[0053] In a possible implementation, the VCU is further configured to, upon receiving a fuel cell power-on instruction, connect a low-voltage power supply to perform a low-voltage power-on operation on the FCU and the HCU so that the FCU and the HCU enter a working state;

[0054] The HCU is also used to perform safety detection on the hydrogen system, and control the opening of sensors in the hydrogen system for collecting operating status data of the hydrogen system, and upon receiving a fault detection instruction sent by the FCU, detect whether the hydrogen system has a first-level fault and a second-level fault based on the current operating status data collected by the sensor, and report the detection results to the FCU, and upon receiving a bottle valve opening instruction sent by the FCU, control the opening of the bottle valve in the hydrogen system;

[0055] The FCU is also used to send fault detection instructions to the HCU and receive the detection results reported by the HCU. If it is determined based on the detection results that the hydrogen system has a first-level fault and / or a second-level fault, a fault alarm message is sent to the VCU, and the high-voltage power-on operation is not performed on the fuel cell system. If it is determined based on the detection results that the hydrogen system has no first-level fault and no second-level fault, a bottle valve opening instruction is sent to the HCU, and a high-voltage power-on operation is performed on the fuel cell system to control the startup of the fuel cell system.

[0056] In a possible implementation, the VCU is further configured to send a fuel cell shutdown instruction to the FCU upon receiving a fuel cell power-off instruction;

[0057] The FCU is also used to send a bottle valve closing instruction to the HCU when receiving a fuel cell shutdown instruction, and perform a power-off operation on the fuel cell system;

[0058] The HCU is also used to control the closing of the bottle valve in the hydrogen system when receiving a command to close the bottle valve.

[0059] Based on the above hydrogen system control system 100 provided in the embodiment of the present application, the embodiment of the present application provides a hydrogen system control method, which can be applied to hydrogen system control devices such as HCU in a fuel cell system. For details, see Figure 2 As shown, the general process of a hydrogen system control method provided in an embodiment of the present application is as follows:

[0060] Step 201: During the operation of the fuel cell system, the HCU collects current operating status data of the hydrogen system.

[0061] In actual applications, the HCU can collect the current operating status data of the hydrogen system, such as the current hydrogen concentration, current temperature, and current hydrogen pressure, through various sensors in the hydrogen system, such as the hydrogen concentration sensor, temperature sensor, and pressure sensor.

[0062] Step 202: The HCU sends the current operating status data of the hydrogen system to the FCU and the VCU to trigger the FCU and the VCU to return the bottle valve closing instruction when they determine that the hydrogen system has a second-level fault based on the current operating status data of the hydrogen system and has not had a first-level fault.

[0063] In actual applications, when the FCU and VCU determine that a second-level fault has occurred in the hydrogen system based on the current operating status data of the hydrogen system and no first-level fault has occurred, in addition to returning the bottle valve closing instruction to the HCU, the fuel cell system will also be controlled to shut down. And when it is determined that a first-level fault has occurred in the hydrogen system based on the current operating status data of the hydrogen system, the fuel cell system will also be controlled to stop urgently, thereby further improving the accuracy of hydrogen system fault detection through multiple diagnoses of the FCU and VCU.

[0064] Step 203: If the HCU determines that a first-level fault occurs in the hydrogen system based on the current operating status data of the hydrogen system, it controls the bottle valve in the hydrogen system to close; wherein the severity of the first-level fault is higher than the severity of the second-level fault.

[0065] In actual applications, when the HCU determines that a first-level fault occurs in the hydrogen system based on the current operating status data of the hydrogen system, it can directly control the closure of the bottle valve in the hydrogen system, thereby improving the response speed of hydrogen system fault detection and processing, and further improving the safety of the fuel cell system, ensuring the driving safety and user experience of new energy vehicles.

[0066] Step 204: If the HCU determines that a second-level fault occurs in the hydrogen system and no first-level fault occurs based on the current operating status information of the hydrogen system, then when it is determined that the bottle valve closing condition is met, the bottle valve in the hydrogen system is controlled to close; wherein the bottle valve closing condition is receiving a bottle valve closing instruction sent by the FCU and / or VCU, or not receiving a bottle valve closing instruction sent by the FCU or VCU for a set time period.

[0067] In actual applications, when the HCU determines that a second-level fault occurs in the hydrogen system but no first-level fault occurs based on the current operating status data of the hydrogen system, since the severity of the second-level fault is not as high as that of the first-level fault, it can wait for the bottle valve closing instruction sent by the FCU or VCU. After receiving the bottle valve closing instruction sent by the FCU and / or VCU, or after the bottle valve closing instruction sent by the FCU or VCU is not received for a set period of time, the bottle valve in the hydrogen system is controlled to be closed. This can not only ensure the safety of the fuel cell system, but also improve the accuracy of fault detection through multiple diagnoses.

[0068] Based on the above hydrogen system control system 100 provided in the embodiment of the present application, the embodiment of the present application provides another hydrogen system control method, which can be applied to hydrogen system control devices such as FCU in a fuel cell system and VCU in a new energy vehicle. For details, refer to Figure 3 As shown, the overview process of another hydrogen system control method provided in the embodiment of the present application is as follows:

[0069] Step 301: During the operation of the fuel cell system, current operating status data of the hydrogen system sent by the HCU is received.

[0070] In actual applications, during the operation of the fuel cell system, the HCU can collect the current operating status data of the hydrogen system, such as the current hydrogen concentration, current temperature, and current hydrogen pressure, through various sensors in the hydrogen system, such as the hydrogen concentration sensor, temperature sensor, and pressure sensor, and send the collected current operating status data of the hydrogen system, such as the current hydrogen concentration, current temperature, and current hydrogen pressure, to the FCU and VCU, so that the FCU and VCU can obtain the current operating status data of the hydrogen system.

[0071] Step 302: If it is determined based on the current operating status data of the hydrogen system that a second-level fault occurs in the hydrogen system and no first-level fault occurs, a bottle valve closing instruction is sent to the HCU, so that after the HCU determines based on the current operating status information of the hydrogen system that a second-level fault occurs in the hydrogen system and no first-level fault occurs, when it is determined that the bottle valve closing condition is met, the bottle valve in the hydrogen system is controlled to close; wherein the bottle valve closing condition is receiving a bottle valve closing instruction, or not receiving a bottle valve closing instruction for a set period of time.

[0072] In actual applications, when the FCU and VCU determine that the hydrogen system has a second-level fault and no first-level fault based on the current operating status data of the hydrogen system, in addition to sending a bottle valve closing instruction to the HCU, they will also control the fuel cell system to shut down. When the hydrogen system has a first-level fault based on the current operating status data of the hydrogen system, the FCU and VCU will also control the fuel cell system to stop urgently. The HCU will also perform hydrogen system fault detection based on the current operating status data of the hydrogen system, that is, when the HCU determines that the hydrogen system has a first-level fault based on the current operating status data of the hydrogen system, it will directly control the bottle valve in the hydrogen system to close. The HCU When the current operating status information of the hydrogen system determines that the hydrogen system has a second-level fault and no first-level fault occurs, after receiving the bottle valve closing instruction sent by the FCU and / or VCU, or after the bottle valve closing instruction sent by the FCU or VCU is not received for a set period of time, the bottle valve in the hydrogen system is controlled to be closed. This not only achieves timely detection and processing of hydrogen system faults of different degrees of severity, improves the response efficiency of hydrogen system faults, but also improves the detection accuracy of hydrogen system faults through multiple fault diagnosis of the HCU, FCU and VCU, thereby effectively preventing false alarms and improving the driving experience and comfort of new energy vehicles.

[0073] In addition, in the embodiment of the present application, if the HCU detects that the current hydrogen concentration of the hydrogen system is not lower than the set threshold value based on the current hydrogen concentration collected by the hydrogen concentration sensor, it controls the bottle valve in the hydrogen system to close, and sends a high-voltage power-off instruction to the FCU and VCU; when the FCU and VCU receive the high-voltage power-off instruction sent by the HCU, they perform a high-voltage power-off operation on the fuel cell system, thereby further improving the hydrogen safety of the fuel cell system and ensuring the driving safety and usage experience of new energy vehicles.

[0074] In addition, in an embodiment of the present application, when the VCU receives a fuel cell power-on instruction, the low-voltage power supply is turned on to perform a low-voltage power-on operation on the FCU and the HCU so that the FCU and the HCU enter a working state. The HCU then performs a safety check on the hydrogen system, and controls the sensor in the hydrogen system for collecting operating status data of the hydrogen system to start for preheating. When the VCU receives a fault detection instruction sent by the FCU, the HCU detects whether a first-level fault and a second-level fault occur in the hydrogen system based on the current operating status data collected by the sensor, and reports the detection result to the FCU. When the FCU receives the detection result reported by the HCU, if it is determined based on the detection result that a first-level fault and / or a second-level fault occurs in the hydrogen system, the high-voltage power-on operation is not performed on the fuel cell system, and a fault alarm message is sent to the VCU to warn the driver of the fault. If it is determined based on the detection result that the hydrogen system does not have a first-level fault and a second-level fault, a high-voltage power-on operation is performed on the fuel cell system to control the start-up of the fuel cell system, and a bottle valve opening instruction is sent to the HCU. When the HCU receives the bottle valve opening instruction sent by the FCU, the bottle valve in the hydrogen system is controlled to open, and the fuel cell system starts to operate.

[0075] Moreover, in an embodiment of the present application, when the VCU receives a fuel cell power-off command, it sends a fuel cell shutdown command to the FCU. When the FCU receives the fuel cell shutdown command, it performs a power-off operation on the fuel cell system and sends a bottle valve closing command to the HCU. When the HCU receives the bottle valve closing command, it controls the bottle valve in the hydrogen system to close, and the fuel cell system is shut down.

[0076] Next, the hydrogen system control method provided in the embodiment of the present application is further described in detail. Figure 4 As shown, the interactive process of the hydrogen system control method provided in the embodiment of the present application is as follows:

[0077] Step 401: When the VCU receives a fuel cell power-on instruction, it turns on a low-voltage power supply to perform a low-voltage power-on operation on the FCU and the HCU so that the FCU and the HCU enter a working state.

[0078] Step 402: The HCU performs a safety check on the hydrogen system and controls the sensors in the hydrogen system for collecting operating status data of the hydrogen system to start for preheating.

[0079] Step 403: The FCU sends a fault detection instruction to the HCU.

[0080] Step 404: When the HCU receives the fault detection instruction sent by the FCU, it detects whether the hydrogen system has a first level fault and a second level fault based on the current operating status data collected by the sensor.

[0081] Step 405: The HCU reports the detection result to the FCU.

[0082] Step 406: When the FCU receives the test results reported by the HCU, it determines whether the hydrogen system has a first-level fault and / or a second-level fault based on the test results. If so, execute steps 407 and 408; if not, execute steps 409 and 410.

[0083] Step 407: The FCU does not perform a high voltage power-on operation on the fuel cell system.

[0084] Step 408: The FCU sends fault alarm information to the VCU.

[0085] Step 409: The FCU performs a high voltage power-on operation on the fuel cell system to control the start-up of the fuel cell system.

[0086] Step 410: The FCU sends a bottle valve opening instruction to the HCU.

[0087] Step 411: When the HCU receives the bottle valve opening instruction sent by the FCU, it controls the bottle valve in the hydrogen system to open.

[0088] At this point, the fuel cell system power-on control process ends and the fuel cell system starts to operate.

[0089] Step 412: During the operation of the fuel cell system, the HCU periodically obtains the current operating status data of the hydrogen system collected by various sensors, and continues to execute step 413 and steps 420 to 423.

[0090] Step 413: The HCU sends the current operating status data of the hydrogen system to the FCU and the VCU.

[0091] Step 414: When the FCU and VCU receive the current operating status data of the hydrogen system sent by the HCU, they determine whether the hydrogen system has a first-level fault based on the current operating status data of the hydrogen system. If so, execute step 415; if not, execute step 416.

[0092] Step 415: The FCU and VCU control the fuel cell system to stop suddenly.

[0093] Step 416: The FCU and the VCU determine whether a second level fault occurs in the hydrogen system based on the current operating status data of the hydrogen system. If so, execute steps 417 and 418; if not, execute step 419.

[0094] Step 417: FCU and VCU send a bottle valve closing instruction to HCU.

[0095] Step 418: The FCU and the VCU control the fuel cell system to shut down.

[0096] Step 419 : The FCU and the VCU determine that there is no fault in the hydrogen system and return to step 414 .

[0097] Step 420: The HCU determines whether a first-level fault occurs in the hydrogen system based on the current operating status data of the hydrogen system. If so, execute step 421; if not, execute step 422.

[0098] Step 421: HCU controls the bottle valve in the hydrogen system to close.

[0099] Step 422: The HCU determines whether a second level fault occurs in the hydrogen system based on the current operating status data of the hydrogen system. If so, execute step 423; if not, return to step 412.

[0100] Step 423: When the HCU receives a bottle valve closing instruction from the FCU and / or VCU, or fails to receive a bottle valve closing instruction from the FCU or VCU for a set period of time, the bottle valve in the hydrogen system is controlled to be closed.

[0101] Step 424: The HCU periodically obtains the current hydrogen concentration collected by the hydrogen concentration sensor, and when it detects based on the current hydrogen concentration that the current hydrogen concentration of the hydrogen system is not lower than the set threshold, controls the bottle valve in the hydrogen system to close.

[0102] Step 425: The HCU sends a high voltage power-off request instruction to the FCU and the VCU.

[0103] Step 426: When the FCU and the VCU receive the high voltage power-off request instruction sent by the HCU, they perform a high voltage power-off operation on the fuel cell system.

[0104] At this point, the hydrogen system control process during the operation of the fuel cell system ends; among them, the hydrogen safety detection process of steps 424-426 and the hydrogen system fault detection process of steps 412-423 run through the entire operation cycle of the fuel cell system without any order restrictions.

[0105] Step 427: When the VCU receives the fuel cell power-off instruction, it sends a fuel cell shutdown instruction to the FCU.

[0106] Step 428: When the FCU receives the fuel cell shutdown instruction, it performs a power-off operation on the fuel cell system.

[0107] Step 429: The FCU sends a command to close the bottle valve to the HCU.

[0108] Step 430: When the HCU receives the bottle valve closing instruction, it controls the bottle valve in the hydrogen system to close.

[0109] At this point, the fuel cell system power-off control process ends.

[0110] Based on the above embodiments, the present application provides a hydrogen system control device, which can be applied to hydrogen system control equipment such as HCU in a fuel cell system. For details, see Figure 5 As shown, a hydrogen system control device 500 provided in an embodiment of the present application at least includes:

[0111] The data acquisition unit 501 is used to collect the current operating status data of the hydrogen system during the operation of the fuel cell system;

[0112] The data forwarding unit 502 is used to send the current operating status data of the hydrogen system to the FCU and the VCU, so as to trigger the FCU and the VCU to return the bottle valve closing instruction when determining that the hydrogen system has a second-level fault based on the current operating status data of the hydrogen system and has not had a first-level fault;

[0113] The bottle valve control unit 503 is used to control the bottle valves in the hydrogen system to close if it is determined that the hydrogen system has a first-level fault based on the current operating status data of the hydrogen system; if it is determined that the hydrogen system has a second-level fault and no first-level fault has occurred based on the current operating status information of the hydrogen system, then when it is determined that the bottle valve closing condition is met, control the bottle valves in the hydrogen system to close; wherein the bottle valve closing condition is receiving a bottle valve closing instruction sent by the FCU and / or VCU, or not receiving a bottle valve closing instruction sent by the FCU or VCU for a set time period; the severity of the first-level fault is higher than the severity of the second-level fault.

[0114] Based on the above embodiments, the present application provides another hydrogen system control device, which can be applied to hydrogen system control devices such as FCU in a fuel cell system and VCU in a new energy vehicle. For details, see Figure 6 As shown, another hydrogen system control device 600 provided in an embodiment of the present application at least includes:

[0115] The data receiving unit 601 is used to receive the current operating status data of the hydrogen system sent by the HCU during the operation of the fuel cell system;

[0116] The instruction issuing unit 602 is used for sending a bottle valve closing instruction to the HCU if it is determined based on the current operating status data of the hydrogen system that a second-level fault occurs in the hydrogen system and no first-level fault occurs, so that after the HCU determines based on the current operating status information of the hydrogen system that a second-level fault occurs in the hydrogen system and no first-level fault occurs, when it is determined that the bottle valve closing condition is met, it controls the bottle valve in the hydrogen system to close; wherein the bottle valve closing condition is receiving a bottle valve closing instruction, or not receiving a bottle valve closing instruction for a set time period.

[0117] It should be noted that the principle of solving the technical problem by the hydrogen system control device provided in the embodiment of the present application is similar to the hydrogen system control method provided in the embodiment of the present application. Therefore, the implementation of the hydrogen system control device provided in the embodiment of the present application can refer to the implementation of the hydrogen system control method provided in the embodiment of the present application, and the repeated parts will not be repeated.

[0118] After introducing the hydrogen system control system, method and device provided in the embodiments of the present application, the hydrogen system control device provided in the embodiments of the present application is briefly introduced next.

[0119] The hydrogen system control device provided in the embodiment of the present application includes an HCU in a fuel cell system, an FCU in a fuel cell system, and a VCU in a new energy vehicle. Figure 7 As shown, the hydrogen system control device 700 provided in the embodiment of the present application includes at least a processor 701, a memory 702, and a computer program stored in the memory 702 and executable on the processor 701. When the processor 701 executes the computer program, the hydrogen system control method applied to the HCU provided in the embodiment of the present application is implemented, or the hydrogen system control method applied to the FCU and VCU provided in the embodiment of the present application is implemented.

[0120] In a possible implementation, the hydrogen system control device 700 may further include a bus 703 connecting different components (including the processor 701 and the memory 702). The bus 703 represents one or more of several types of bus structures, including a memory bus, a peripheral bus, a local bus, and the like.

[0121] In a possible implementation, the memory 702 may include a readable medium in the form of a volatile memory, such as a RAM (Random Access Memory) 7021 and / or a cache memory 7022, and may further include a ROM (Read Only Memory) 7023. The memory 702 may also include a program tool 7025 having a group (at least one) of program modules 7024, and the program modules 7024 include but are not limited to an operating subsystem, one or more application programs, other program modules, and program data, each of which or a certain combination may include the implementation of a network environment.

[0122] In one possible implementation, the hydrogen system control device 700 may also communicate with one or more devices (such as mobile phones, computers, etc.) that enable users to interact with the hydrogen system control device 700, and / or with external devices 704 such as devices (such as routers, modems, etc.) that enable the hydrogen system control device 700 to communicate with one or more other hydrogen system control devices 700. Such communication may be performed through an I / O (Input / Output) interface 705. In addition, the hydrogen system control device 700 may also communicate with one or more networks (such as LAN (Local Area Network), WAN (Wide Area Network) and / or public networks, such as the Internet) through a network adapter 706. Figure 7 As shown, the network adapter 706 communicates with other modules of the hydrogen system control device 700 via the bus 703. It should be understood that although Figure 7 Not shown, other hardware and / or software modules may be used in conjunction with the hydrogen system control device 700, including but not limited to: microcode, device drivers, redundant processors, external disk drive arrays, RAID (Redundant Arrays of Independent Disks) subsystems, tape drives, and data backup storage subsystems.

[0123] It should be noted that Figure 7 The hydrogen system control device 700 shown is merely an example and should not bring any limitation to the functions and scope of use of the embodiments of the present application.

[0124] Based on the above embodiments, an embodiment of the present application also provides a fuel cell system, which includes at least a fuel cell stack, an anode system for supplying hydrogen to the fuel cell stack, a cathode system for supplying air to the fuel cell stack, a cooling system for cooling the fuel cell stack, an HCU and an FCU.

[0125] In addition, an embodiment of the present application also provides a new energy vehicle, which includes at least a body, a chassis frame, wheels, an electric motor, a vehicle control system, a VCU and a fuel cell system.

[0126] In addition, the embodiment of the present application further provides a computer-readable storage medium, and the computer-readable storage medium provided in the embodiment of the present application stores computer instructions, and when the computer instructions are executed by the processor, the hydrogen system control method applied to the HCU provided in the embodiment of the present application is implemented or the hydrogen system control method applied to the FCU and VCU provided in the embodiment of the present application is implemented. Specifically, the computer instructions can be built into the processor, so that the processor can implement the hydrogen system control method applied to the HCU provided in the embodiment of the present application or the hydrogen system control method applied to the FCU and VCU provided in the embodiment of the present application by executing the built-in computer instructions.

[0127] Moreover, the hydrogen system control method provided in the embodiment of the present application can also be implemented as a program product, which includes a program code. When the program code runs on a processor, it implements the hydrogen system control method applied to the HCU provided in the embodiment of the present application or implements the hydrogen system control method applied to the FCU and VCU provided in the embodiment of the present application.

[0128] In one possible implementation, the program product provided in the embodiments of the present application may adopt any combination of one or more readable media, wherein the readable medium may be a readable signal medium or a readable storage medium, and the readable storage medium may be but is not limited to an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, device or device, or any combination of the above. Specifically, more specific examples of readable storage media (a non-exhaustive list) include: an electrical connection with one or more wires, a portable disk, a hard disk, RAM, ROM, EPROM (Erasable Programmable Read Only Memory), optical fiber, CD-ROM (Compact Disc Read-Only Memory), an optical storage device, a magnetic storage device, or any suitable combination of the above.

[0129] In a possible implementation, the program product provided in the embodiment of the present application may adopt a CD-ROM and include program code, and may also be run on hydrogen system control devices such as HCU, FCU and VCU. However, the program product provided in the embodiment of the present application is not limited thereto. In the embodiment of the present application, the readable storage medium may be any tangible medium containing or storing a program, and the program may be used by or in combination with an instruction execution system, apparatus or device.

[0130] It should be noted that, although several units or subunits of the device are mentioned in the above detailed description, this division is merely exemplary and not mandatory. In fact, according to the embodiments of the present application, the features and functions of two or more units described above can be embodied in one unit. Conversely, the features and functions of one unit described above can be further divided into multiple units to be embodied.

[0131] In addition, although the operations of the method of the present application are described in a specific order in the drawings, this does not require or imply that the operations must be performed in this specific order, or that all the operations shown must be performed to achieve the desired results. Additionally or alternatively, some steps may be omitted, multiple steps may be combined into one step, and / or one step may be decomposed into multiple steps.

[0132] Although the preferred embodiments of the present application have been described, those skilled in the art may make additional changes and modifications to these embodiments once they are aware of the basic creative concepts. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications falling within the scope of the present application.

[0133] Obviously, those skilled in the art can make various changes and modifications to the embodiments of the present application without departing from the spirit and scope of the embodiments of the present application. Thus, if these modifications and variations of the embodiments of the present application fall within the scope of the claims of the present application and their equivalents, the present application is also intended to include these modifications and variations.

Claims

1. A hydrogen system control system, characterized in that: It includes a hydrogen system control unit HCU, a fuel cell control unit FCU and a vehicle control unit VCU; the HCU is connected to the FCU and the VCU for communication respectively, and the FCU is connected to the VCU for communication; The HCU is used to collect current operating status data of the hydrogen system during the operation of the fuel cell system, and send the current operating status data of the hydrogen system to the FCU and the VCU; if it is determined that the hydrogen system has a first-level fault based on the current operating status data of the hydrogen system, the bottle valve in the hydrogen system is controlled to be closed; if it is determined that the hydrogen system has a second-level fault and the first-level fault has not occurred based on the current operating status information of the hydrogen system, when it is determined that the bottle valve closing condition is met, the bottle valve in the hydrogen system is controlled to be closed; wherein the bottle valve closing condition is receiving a bottle valve closing instruction sent by the FCU and / or the VCU, or not receiving the bottle valve closing instruction sent by the FCU or the VCU for a set time; wherein the severity of the first-level fault is higher than the severity of the second-level fault; The FCU and the VCU are used to send the bottle valve closing instruction to the HCU if it is determined that the hydrogen system has the second level fault and has not had the first level fault based on the current operating status data of the hydrogen system.

2. The hydrogen system control system according to claim 1, characterized in that: The FCU and the VCU are further configured to control the fuel cell system to stop suddenly if it is determined that the hydrogen system has the first level fault based on the current operating status data of the hydrogen system; If it is determined based on the current operating state data of the hydrogen system that the second level fault occurs in the hydrogen system and the first level fault does not occur, the fuel cell system is controlled to shut down.

3. The hydrogen system control system according to claim 1, characterized in that: The HCU is further configured to control the bottle valve in the hydrogen system to close when detecting that the current hydrogen concentration of the hydrogen system is not lower than a set threshold value, and to send a high voltage power-off instruction to the FCU and the VCU; The FCU and the VCU are further configured to perform a high-voltage power-off operation on the fuel cell system upon receiving the high-voltage power-off instruction sent by the HCU.

4. The hydrogen system control system according to claim 1, characterized in that: The VCU is further configured to, upon receiving a fuel cell power-on instruction, connect a low-voltage power supply to perform a low-voltage power-on operation on the FCU and the HCU so that the FCU and the HCU enter a working state; and upon receiving a fuel cell power-off instruction, send a fuel cell shutdown instruction to the FCU; The FCU is further used to send a fault detection instruction to the HCU after power-on, and when receiving the detection result reported by the HCU, if it is determined based on the detection result that the hydrogen system has the first level fault and / or the second level fault, then send a fault alarm message to the VCU, and do not perform a high-voltage power-on operation on the fuel cell system; if it is determined based on the detection result that the hydrogen system has not the first level fault and the second level fault, then send a bottle valve opening instruction to the HCU, and perform a high-voltage power-on operation on the fuel cell system to control the start-up of the fuel cell system; when receiving the fuel cell shutdown instruction, send a bottle valve closing instruction to the HCU, and perform a power-off operation on the fuel cell system; The HCU is also used to perform a safety check on the hydrogen system after power-on, and control the sensor in the hydrogen system for collecting operating status data of the hydrogen system to turn on; when receiving the fault detection instruction sent by the FCU, whether the first level fault and the second level fault occur in the hydrogen system based on the current operating status data collected by the sensor, and report the detection result to the FCU; when receiving the bottle valve opening instruction sent by the FCU, the bottle valve in the hydrogen system is controlled to be opened; when receiving the bottle valve closing instruction, the bottle valve in the hydrogen system is controlled to be closed.

5. A hydrogen system control method, characterized in that: include: During the operation of the fuel cell system, the current operating status data of the hydrogen system is collected; Sending the current operating status data of the hydrogen system to the fuel cell control unit FCU and the vehicle control unit VCU to trigger the FCU and the VCU to return a bottle valve closing instruction when determining that the hydrogen system has a second-level fault and has not had a first-level fault based on the current operating status data of the hydrogen system; If it is determined based on the current operating state data of the hydrogen system that the hydrogen system has the first level fault, then the bottle valve in the hydrogen system is controlled to be closed; wherein the severity of the first level fault is higher than the severity of the second level fault; If it is determined based on the current operating status information of the hydrogen system that the hydrogen system has the second level fault and has not the first level fault, then when it is determined that the bottle valve closing condition is met, the bottle valve in the hydrogen system is controlled to be closed; wherein, the bottle valve closing condition is receiving the bottle valve closing instruction sent by the FCU and / or the VCU, or not receiving the bottle valve closing instruction sent by the FCU or the VCU for an extended period of time.

6. A hydrogen system control method, characterized in that: include: During the operation of the fuel cell system, receiving the current operating status data of the hydrogen system sent by the hydrogen system control unit HCU; If it is determined based on the current operating status data of the hydrogen system that a second-level fault has occurred in the hydrogen system and no first-level fault has occurred, a bottle valve closing instruction is sent to the HCU, so that after the HCU determines based on the current operating status information of the hydrogen system that the second-level fault has occurred in the hydrogen system and no first-level fault has occurred, when it is determined that the bottle valve closing condition is met, the bottle valve in the hydrogen system is controlled to be closed; wherein the bottle valve closing condition is receiving the bottle valve closing instruction, or not receiving the bottle valve closing instruction for a set period of time.

7. A hydrogen system control device, characterized in that: include: A data acquisition unit, used to collect current operating status data of the hydrogen system during the operation of the fuel cell system; A data forwarding unit, used for sending the current operating status data of the hydrogen system to the fuel cell control unit FCU and the vehicle control unit VCU, so as to trigger the FCU and the VCU to return a bottle valve closing instruction when determining that the hydrogen system has a second-level fault based on the current operating status data of the hydrogen system and has not had a first-level fault; A bottle valve control unit is used to control the bottle valve in the hydrogen system to close if it is determined that the hydrogen system has a first-level fault based on the current operating status data of the hydrogen system; if it is determined that the hydrogen system has a second-level fault and the first-level fault has not occurred based on the current operating status information of the hydrogen system, then control the bottle valve in the hydrogen system to close when it is determined that the bottle valve closing condition is met; wherein the bottle valve closing condition is receiving the bottle valve closing instruction sent by the FCU and / or the VCU, or failing to receive the bottle valve closing instruction sent by the FCU or the VCU for a set time; the severity of the first-level fault is higher than the severity of the second-level fault.

8. A hydrogen system control device, characterized in that: include: A data receiving unit, used to receive the current operating status data of the hydrogen system sent by the hydrogen system control unit HCU during the operation of the fuel cell system; an instruction issuing unit, for sending a bottle valve closing instruction to the HCU, if it is determined based on the current operating status data of the hydrogen system that the hydrogen system has a second-level fault and no first-level fault, so that after the HCU determines based on the current operating status information of the hydrogen system that the hydrogen system has a second-level fault and no first-level fault, when it is determined that the bottle valve closing condition is met, it controls the bottle valve in the hydrogen system to close; wherein the bottle valve closing condition is receiving the bottle valve closing instruction, or not receiving the bottle valve closing instruction for a set time period.

9. A hydrogen system control device, characterized in that: The method comprises a memory, a processor and a computer program stored in the memory and executable on the processor, wherein the processor implements the hydrogen system control method as claimed in claim 5 or 6 when executing the computer program.

10. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores computer instructions, and when the computer instructions are executed by a processor, the hydrogen system control method according to claim 5 or 6 is implemented.

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