CN113246803A - Hydrogen supply control system, method, device, readable storage medium and vehicle - Google Patents

Hydrogen supply control system, method, device, readable storage medium and vehicle Download PDF

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Publication number
CN113246803A
CN113246803A CN202110712771.3A CN202110712771A CN113246803A CN 113246803 A CN113246803 A CN 113246803A CN 202110712771 A CN202110712771 A CN 202110712771A CN 113246803 A CN113246803 A CN 113246803A
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China
Prior art keywords
hydrogen
shut
controller
valve
hydrogen supply
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CN202110712771.3A
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Chinese (zh)
Inventor
彭炼
洪超
邓光荣
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Sany Automobile Manufacturing Co Ltd
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Sany Automobile Manufacturing Co Ltd
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Priority to CN202110712771.3A priority Critical patent/CN113246803A/en
Publication of CN113246803A publication Critical patent/CN113246803A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
    • B60L58/30—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling fuel cells
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
    • H01M8/04082—Arrangements for control of reactant parameters, e.g. pressure or concentration
    • H01M8/04201—Reactant storage and supply, e.g. means for feeding, pipes
    • H01M8/04216—Reactant storage and supply, e.g. means for feeding, pipes characterised by the choice for a specific material, e.g. carbon, hydride, absorbent
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
    • H01M8/04298—Processes for controlling fuel cells or fuel cell systems
    • H01M8/04694—Processes for controlling fuel cells or fuel cell systems characterised by variables to be controlled
    • H01M8/04746—Pressure; Flow
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2250/00—Fuel cells for particular applications; Specific features of fuel cell system
    • H01M2250/20—Fuel cells in motive systems, e.g. vehicle, ship, plane
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/30—Hydrogen technology
    • Y02E60/50—Fuel cells
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/40—Application of hydrogen technology to transportation, e.g. using fuel cells

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Power Engineering (AREA)
  • Fuel Cell (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)

Abstract

The invention provides a hydrogen supply control system, a method, a device, a readable storage medium and a vehicle, wherein the hydrogen supply control system comprises: a hydrogen tank; a power supply line; the shutoff valve is arranged on the power supply circuit and can be used for controlling the connection or disconnection of the hydrogen tank, and the shutoff valve is a normally closed valve; the collision sensor is arranged on the power supply line and can be used for controlling the power-off of the shutoff valve; and the safety part is arranged on the power supply circuit and can be used for controlling the power failure of the shutoff valve. The invention can realize multiple control of the shut-off valve, can control the shut-off valve to cut off power, realizes redundant hydrogen cut-off control, and greatly improves the hydrogen safety of the whole vehicle.

Description

Hydrogen supply control system, method, device, readable storage medium and vehicle
Technical Field
The invention relates to the technical field of new energy vehicles, in particular to a hydrogen supply control system, method and device, a readable storage medium and a vehicle.
Background
In the present environment, a new energy power form has become the mainstream, and the hydrogen fuel cell vehicle is widely applied. In the related art, a shut-off valve is added to a hydrogen tank in a hydrogen supply control system, and fault judgment is performed through a hydrogen supply controller, but the possibility of functional fault or communication fault of the hydrogen supply controller or the shut-off valve exists, and there is no way to stop hydrogen supply in time. In the related technology, the whole vehicle is added with collision detection and monitoring functions, a collision sensor sends a signal to a central controller to cut off power and hydrogen, but the signal has the possibility of a transmission terminal, so that emergency and hydrogen cutting cannot be realized in time. In the related technology, the central controller and the hydrogen supply controller are used in a matched mode, fault levels are refined, and hydrogen breaking protection is conducted on related faults, but a hydrogen breaking loop on an electric control framework is single, and redundant hydrogen safety protection is not conducted.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art.
To this end, a first aspect of the invention provides a hydrogen supply control system.
A second aspect of the invention provides a hydrogen supply control method.
A third aspect of the invention provides a hydrogen supply control apparatus.
A fourth aspect of the invention provides a readable storage medium.
A fifth aspect of the invention provides a vehicle.
A first aspect of the present invention provides a hydrogen supply control system including: a hydrogen tank; a power supply line; the shutoff valve is arranged on the power supply circuit and can be used for controlling the connection or disconnection of the hydrogen tank, and the shutoff valve is a normally closed valve; the collision sensor is arranged on the power supply line and can be used for controlling the power-off of the shutoff valve; and the safety part is arranged on the power supply circuit and can be used for controlling the power failure of the shutoff valve.
The hydrogen supply control system provided by the invention can be used for vehicles, in particular fuel cell vehicles. The hydrogen tank is arranged on the vehicle, and the power supply line is connected with the vehicle and can ensure the power supply of the whole hydrogen supply control system.
Specifically, the shut-off valve may be disposed on the hydrogen tank, or on a hydrogen supply pipeline of the hydrogen tank, and the shut-off valve is a normally-closed valve; the shutoff valve can conduct the hydrogen tank when electrified, and the shutoff valve can shut off the hydrogen tank when electrified. In addition, a collision sensor is arranged on the power supply line, the collision sensor can be used for detecting whether the vehicle collides, and in the case of the vehicle collision, the collision sensor can directly control the power-off valve to be powered off so as to shut off the hydrogen tank.
Further, in the event of a vehicle collision, the collision sensor sends a control signal to de-energize the shut-off valve. And a safety member is also provided on the vehicle, which is provided on the power supply line and can be manually operated by the driver. That is, when the vehicle collides or other emergencies occur, the driver may directly turn off the hydrogen tank by deenergizing the shut-off valve through the safety member.
In particular, the shut-off valve is a normally closed valve and can shut off the hydrogen tank in the event of a power loss, and both the collision sensor and the safety member can disconnect the shut-off valve from the power supply line so that the shut-off valve shuts off the hydrogen tank. And, the above-mentioned collision sensor can break the connection between power supply line and the shutoff valve when the vehicle collides, and the user can break the connection between power supply line and the shutoff valve voluntarily through the safety part.
That is, the invention can realize multiple control of the shut-off valve, can control the shut-off valve to cut off power, can also control the shut-off valve to shut off, realize the redundant hydrogen-cut-off control, and greatly improve the hydrogen safety of the whole vehicle.
The hydrogen supply control system according to the above technical aspect of the present invention may further have the following additional technical features:
in the above technical solution, the hydrogen supply control system further includes: and the controller is arranged on the power supply circuit, is electrically connected with the collision sensor, the safety component and the shut-off valve and can control the shut-off valve to work according to the collision sensor and/or the safety component.
In this technical solution, the hydrogen supply control system further includes a controller. Wherein, the controller is arranged on the power supply line and is electrically connected with the collision sensor and the shutoff valve. In the event of a vehicle collision, the collision sensor may also send a control signal to the controller such that the controller controls the shut-off valve to de-energize in accordance with the control signal sent by the collision sensor. And the controller can also directly control the shutoff valve to be closed. In addition, when the vehicle is in a collision or other emergency situations, the driver can directly send a control signal to the controller through the safety component, so that the controller shutoff valve is powered off to shut off the hydrogen tank. That is, the invention can realize multiple control of the shut-off valve, can control the shut-off valve to cut off power, can also control the shut-off valve to shut off, realize the redundant hydrogen-cut-off control, and greatly improve the hydrogen safety of the whole vehicle.
In any of the above solutions, the collision sensor, the safety member and the controller are connected in series to the power supply line.
In this solution, the crash sensor, the safety element and the controller are connected in series to the power supply line. In this way, when either one of the collision sensor and the safety member is triggered, the connection between the shut-off valve and the power supply line can be cut off, so that the shut-off valve loses power to shut off the hydrogen tank.
That is, in the case of a vehicle collision, the collision sensor may automatically disconnect the shut-off valve from the power supply line, and the collision sensor may also send a control signal to the sensor, so that the controller controls the shut-off valve to be powered off according to the control signal sent by the collision sensor. Further, even in the case where the vehicle is not involved in a collision, the driver can actively disconnect the shutoff valve from the power supply line through the safety member. Thus, through the cooperation of the collision sensor, the safety component and the controller, various controls on the shut-off valve and multiple protections on the hydrogen tank and the whole hydrogen supply control system can be realized.
In any of the above technical solutions, the shut-off valve is disposed between the collision sensor and the controller.
In this solution, the shut-off valve is arranged on the power supply line and is located between the crash sensor and the controller. In this way, firstly it can be ensured that the controller can directly control the shut-off valve to open, and secondly it can be ensured that the collision sensor and the safety component can cut off the supply of power to the shut-off valve by means of the controller.
In any of the above solutions, the collision sensor is provided at the head of the vehicle.
In this solution, the head of the vehicle is generally the part where the impact occurs during the running of the vehicle. Therefore, the present invention provides a collision sensor in a front cavity of a head of a vehicle and accurately detects whether the vehicle has collided.
In any one of the above aspects, the safety member is provided in a cab of the vehicle.
In this solution, the driver is generally located in the cab during the driving of the vehicle. Therefore, the present invention provides the safety member in the cabin of the vehicle so that the user actively disconnects the shut-off valve from the power supply line directly using the safety member in an emergency. Specifically, the safety component is an emergency switch.
In any of the above technical solutions, the hydrogen supply control system includes a plurality of hydrogen tanks; the hydrogen supply control system comprises a plurality of shut-off valves which are respectively arranged on the hydrogen tanks, and the controller is connected with any shut-off valve.
In this technical scheme, the vehicle includes a plurality of hydrogen tanks, and in the vehicle operation process, a plurality of hydrogen tanks can provide hydrogen simultaneously to promote the power of vehicle. In addition, the number of shutoff valves is a plurality of, and a plurality of shutoff valves set up respectively on a plurality of hydrogen tanks to guarantee that every hydrogen tank can all be through shutoff valve control switch-on or switch-off. In addition, the controller is connected with any shut-off valve and can independently control each shut-off valve to open and close. That is, the controller may control any one of the shut-off valves to be opened or closed individually, or may control all of the shut-off valves to be opened or closed simultaneously.
In any of the above technical solutions, the shut-off valves are connected in parallel and are respectively disposed on branch circuits of the power supply line.
In the technical scheme, the plurality of shutoff valves are respectively arranged on the branch loops of the power supply line, so that the plurality of shutoff valves are connected in parallel. And the plurality of shutoff valves can respectively control the connection and disconnection of the plurality of hydrogen tanks so as to realize the independent control of each hydrogen tank.
In any of the above technical solutions, the hydrogen supply control system further includes a switch, and the switch is disposed on the main loop of the power supply line and electrically connected to the controller.
The hydrogen supply control system further includes a switch. The switch is arranged on a main loop of a power supply line, so that one end of the switch is electrically connected with the controller, and the shutoff valves are electrically connected with the other end of the switch after being connected in parallel. In this way, the switch is connected to the controller and can be turned on or off under the control of the controller.
Specifically, the controller may be configured to control the switches to be turned off, and at this time, the power supply to all the shut-off valves is turned off by the switches, so that all the shut-off valves are simultaneously in the off state, and so that all the hydrogen tanks stop supplying hydrogen. When the controller can also be used for controlling the switch to be conducted, the power supply of all the shutoff valves is recovered through the switch, so that all the shutoff valves are in an open state at the same time, and all the hydrogen tanks recover hydrogen supply.
In particular, by the use of the above switch, hydrogen supply control to the entire vehicle can be further promoted. Specifically, the hydrogen supply control system provided by the invention can disconnect the connection between the shutoff valve and the power supply line through the collision sensor, disconnect the connection between the shutoff valve and the power supply line through the safety component, disconnect the connection between the shutoff valve and the power supply line through the switch, independently control the opening or closing of any shutoff valve through the controller, and independently control the opening or closing of all the shutoff valves through the controller.
In any of the above technical solutions, the switch is a relay.
In this solution, the switch may be selected as a relay. Wherein, when the relay is in a conducting state under the condition of being electrified, the power supply circuit can be ensured to supply power for the shutoff valve so as to lead the shutoff valve to conduct the hydrogen tank. When the relay is in a disconnected state under the condition of power loss, the power supply line stops supplying power to the shutoff valve, so that the hydrogen tank stops supplying hydrogen.
In any one of the above technical solutions, the hydrogen supply control system further includes: the detection component is arranged on the hydrogen tank and is electrically connected with the controller; the controller can control the shut-off valve to work according to the detection result of the detection component; wherein the detection component comprises one or a combination of the following: pressure sensor, temperature sensor, hydrogen sensor.
In this embodiment, the hydrogen supply control system further includes a detection unit. The detection component is arranged on the hydrogen tank and can be used for detecting the operation data of the whole hydrogen supply control system; the controller is electrically connected with the detection component and can control the operation of the shutoff valve according to the detection result of the detection component. In particular, the detection component includes, but is not limited to, a pressure sensor, a temperature sensor, a hydrogen sensor.
When the detection component adopts a pressure sensor or a pressure sensor, the pressure sensor can be used for detecting the system pressure of the hydrogen supply control system, and the controller can control the shutoff valve to be closed to stop hydrogen supply when the system pressure of the hydrogen supply control system is greater than a pressure threshold value.
When the detection component adopts a temperature sensor, the pressure sensor can be used for detecting the system temperature of the hydrogen supply control system, and the controller can control the shutoff valve to be closed to stop hydrogen supply when the system temperature of the hydrogen supply control system is greater than a temperature threshold value.
When the detection part adopts the hydrogen sensor, the pressure sensor can be used for detecting the hydrogen leakage amount of the hydrogen supply control system, and the controller can control the shutoff valve to be shut off to stop hydrogen supply when the hydrogen leakage amount of the hydrogen supply control system is larger than the preset leakage amount.
In any of the above technical solutions, the controller is a central controller of the vehicle.
In this embodiment, the controller is a VCU (central control Unit). That is, the hydrogen supply control system provided by the invention can realize control directly based on the VCU of the vehicle.
In any of the above technical solutions, the controller is a hydrogen supply controller, and the vehicle further includes a central controller electrically connected to the hydrogen supply controller.
In this embodiment, the controller is an FCU (Fuel content Unit, also referred to as a hydrogen supply controller), and the vehicle further includes a central controller electrically connected to the hydrogen supply controller. That is, the hydrogen supply control system proposed by the present invention can realize control based on the FCU of the vehicle.
A second aspect of the present invention provides a hydrogen supply control method for the hydrogen supply control system in the above technical solution, the hydrogen supply control method including: controlling the shut-off valve to shut off when either one of the collision sensor and the safety member is triggered; when the collision sensor and the safety component are not triggered, judging whether the controller fails or not, and controlling the shutoff valve to be turned off when the controller fails; and when the controller does not have a fault, judging whether the shut-off valve has a fault or not, and controlling the shut-off valve to be turned off when the shut-off valve has the fault.
The hydrogen supply control method provided by the invention can be used for the hydrogen supply control system in the technical scheme. Therefore, all the advantages of the above-described hydrogen supply control system are also achieved, and are not discussed here.
In addition, the hydrogen supply control method provided by the invention realizes multi-stage protection. Specifically, in the event of a vehicle collision, a collision sensor disposed within a front cavity of the vehicle head is triggered; in the case of an emergency situation of the vehicle, the driver can directly trigger safety features arranged in the vehicle cab. Therefore, the hydrogen supply control method provided by the invention firstly adopts the first-stage protection, detects and judges whether the collision sensor and the safety component are triggered or not, and controls the shutoff valve to be closed when any one of the collision sensor and the safety component is triggered so as to stop hydrogen supply of the hydrogen tank.
And secondly, secondary protection, namely judging whether the controller fails or not when the collision sensor and the safety component are not triggered, and controlling the shutoff valve to be turned off when the controller fails. Therefore, the harm caused by that the vehicle cannot stop supplying hydrogen in time due to the fault of the controller can be effectively solved in time.
And further, the third-stage protection is realized, when the controller does not have a fault, whether the shutoff valve has a fault or not is judged, and when the shutoff valve has a fault, the shutoff valve is controlled to be turned off. Therefore, the harm caused by that the vehicle cannot stop supplying hydrogen in time due to the fault of the shut-off valve can be effectively solved in time.
In addition, when any one of the conditions that the collision sensor is triggered, the safety component is triggered, the controller fails and the shutoff valve fails, the shutoff valve can be controlled to be powered off and shut off simultaneously. Therefore, a multiple-guarantee hydrogen supply loop can be formed, the protection of the hydrogen safety is complete, and the hydrogen supply safety of the vehicle is obviously improved.
Therefore, the hydrogen supply control method provided by the invention can realize multiple graded protection of vehicle hydrogen supply and can realize the hydrogen supply safety of the whole vehicle.
Specifically, in the process of judging whether the controller fails, whether the hydrogen supply controller fails is judged; when the hydrogen supply controller has a fault, the central controller controls the shutoff valve to be closed.
The hydrogen supply control method according to the above technical aspect of the present invention may further have the following additional technical features:
in the above technical solution, controlling the shutoff valve to shut off specifically includes: the controller controls the shutoff valve to be closed; and/or the switch control shutoff valve of the hydrogen supply control system is powered off.
In this embodiment, the method for controlling the shut-off valve to shut off includes, but is not limited to, the following:
the first method is as follows: the safety component controls the power-off of the shutoff valve. Specifically, when the vehicle is in collision or other emergency situations, the driver can directly control the shutoff valve to be powered off through the safety component, and the shutoff valve is in a shutoff state when the power is lost and enables the hydrogen tank to stop supplying hydrogen.
The second method comprises the following steps: the collision sensor controls the shutoff valve to power off. Specifically, when the vehicle collides, the collision sensor may directly control the shut-off valve to be powered off to shut off the hydrogen tank, the shut-off valve being in a shut-off state when power is lost and causing the hydrogen tank to stop supplying hydrogen.
The third method comprises the following steps: the controller controls the shutoff valve to be closed. Specifically, in the event of a vehicle collision, the collision sensor may also send a control signal to the controller, so that the controller controls the shut-off valve to be closed according to the control signal sent by the collision sensor, so that the hydrogen tank stops supplying hydrogen. Specifically, the controller can control one or more shut-off valves to be turned off, and the controller can also control all the shut-off valves to be turned off.
The method is as follows: the switch of the hydrogen supply control system controls the shutoff valve to cut off the power. Specifically, the switch may be turned off under the controller of the controller, at which time the power supply to all the shut-off valves is turned off by the switch, and the shut-off valves are in an off state when the power is lost and the hydrogen tank stops supplying hydrogen.
Particularly, when any one of the conditions that the collision sensor is triggered, the safety component is triggered, the controller fails and the shut-off valve fails occurs, the shut-off valve can be controlled to be turned off in the four ways at the same time so as to stop the hydrogen tank from continuously supplying hydrogen. Therefore, a multiple-guarantee hydrogen supply loop can be formed, the protection of the hydrogen safety is complete, and the hydrogen supply safety of the vehicle is obviously improved.
In any of the above technical solutions, the controller is a central controller of the vehicle.
In this technical solution, the controller is a VCU. That is, the hydrogen supply control system provided by the invention can realize control directly based on the VCU of the vehicle.
In any of the above technical solutions, the controller is a hydrogen supply controller, and the vehicle further includes a central controller electrically connected to the hydrogen supply controller.
In this embodiment, the controller is an FCU, and the vehicle further includes a central controller electrically connected to the hydrogen supply controller. That is, the hydrogen supply control system proposed by the present invention can realize control based on the FCU of the vehicle.
In any of the above technical solutions, the failure of the controller includes: communication failure of the controller and functional failure of the controller.
In this solution, the controller failure includes but is not limited to: controller communication failures and controller functional failures. Particularly, if the controller has a communication failure or a functional failure, the hydrogen supply control system cannot stop supplying hydrogen in time. Therefore, the hydrogen supply control method provided by the invention can detect whether the controller has communication fault or functional fault so as to ensure that a driver can control the hydrogen supply control system to stop supplying hydrogen in time.
In any of the above technical solutions, the failure of the shut-off valve includes: shut-off valve communication failure, shut-off valve functional failure.
In this solution, the failure of the shut-off valve includes but is not limited to: shut-off valve communication failure and shut-off valve functional failure. Particularly, if the shut-off valve has communication failure or functional failure, the hydrogen supply control system cannot stop supplying hydrogen in time directly. Therefore, the hydrogen supply control method provided by the invention can detect whether the shut-off valve has communication fault or functional fault, so as to ensure that a driver can control the hydrogen supply control system to stop supplying hydrogen in time.
In any of the above technical solutions, when the shut-off valve is not in failure, the shut-off valve is controlled to operate according to a detection result of a detection component of the hydrogen supply control system; wherein the detection component comprises one or a combination of the following: pressure sensor, temperature sensor, hydrogen sensor.
In this technical solution, hydrogen can be supplied during vehicle start-up when the shut-off valve is not malfunctioning. In addition, the operation data of the whole hydrogen supply control system is detected by the detection component in the hydrogen supply process; and then the shut-off valve is controlled to work according to the detection result of the detection component. Specifically, the detection means includes, but is not limited to, a pressure sensor, a temperature sensor, a hydrogen sensor.
When the detection component adopts the pressure sensor, the pressure sensor can be used for detecting the system pressure of the hydrogen supply control system, so that the controller controls the shutoff valve to be shut off to stop hydrogen supply when the system pressure of the hydrogen supply control system is greater than a pressure threshold value.
When the detection component adopts the temperature sensor, the pressure sensor can be used for detecting the system temperature of the hydrogen supply control system, so that the controller can control the shutoff valve to be shut off to stop hydrogen supply when the system temperature of the hydrogen supply control system is greater than a temperature threshold value.
When the detection part adopts the hydrogen sensor, the pressure sensor can be used for detecting the hydrogen leakage amount of the hydrogen supply control system, and then the controller can control the shutoff valve to be shut off to stop hydrogen supply when the hydrogen leakage amount of the hydrogen supply control system is larger than the preset leakage amount.
A third aspect of the invention provides a hydrogen supply control apparatus for a vehicle as in the above-described aspect, the hydrogen supply control apparatus comprising: the control module is used for controlling the shutoff valve to be closed when any one of the collision sensor and the safety component is triggered; the judging module is used for judging whether the controller has a fault or not when the collision sensor and the safety component are not triggered; the control module is also used for controlling the shutoff valve to be turned off when the controller fails; the judging module is also used for judging whether the shut-off valve has faults or not when the controller has no faults; the control module is also used for controlling the shutoff valve to be turned off when the shutoff valve has a fault.
The hydrogen supply control device provided by the invention can be used for the hydrogen supply control system in the technical scheme. Therefore, all the advantages of the above-described hydrogen supply control system are also achieved, and are not discussed here.
In addition, the hydrogen supply control device provided by the invention realizes multi-stage protection. Specifically, in the event of a vehicle collision, a collision sensor provided at the head of the vehicle is triggered; in the case of an emergency situation of the vehicle, the driver can directly trigger safety features arranged in the vehicle cab. Therefore, the hydrogen supply control method provided by the invention firstly adopts the first-stage protection to detect and judge whether the collision sensor and the safety component are triggered or not, and the control module controls the shutoff valve to be closed when any one of the collision sensor and the safety component is triggered so as to stop hydrogen supply of the hydrogen tank.
And secondly, secondary protection is carried out, when the collision sensor and the safety component are not triggered, the judging module judges whether the controller breaks down, and the control module controls the shutoff valve to be turned off when the controller breaks down. Therefore, the harm caused by that the vehicle cannot stop supplying hydrogen in time due to the fault of the controller can be effectively solved in time.
And further, the third-stage protection is realized, when the controller fails, the judging module judges whether the shutoff valve fails, and the control module controls the shutoff valve to be turned off when the shutoff valve fails. Therefore, the harm caused by that the vehicle cannot stop supplying hydrogen in time due to the fault of the shut-off valve can be effectively solved in time.
In addition, when any one of the conditions that the collision sensor is triggered, the safety component is triggered, the controller fails and the shutoff valve fails, the shutoff valve can be controlled to be powered off and shut off simultaneously. Therefore, a multiple-guarantee hydrogen supply loop can be formed, the protection of the hydrogen safety is complete, and the hydrogen supply safety of the vehicle is obviously improved.
Specifically, in the process of judging whether the controller fails, whether the hydrogen supply controller fails is judged; when the hydrogen supply controller has a fault, the central controller controls the shutoff valve to be closed.
A fourth aspect of the present invention provides a readable storage medium on which a program or instructions are stored, the program or instructions, when executed by a processor, implementing the steps of the hydrogen supply control method according to the above-described technical solution.
When the program or the instructions stored in the read storage medium according to the present invention is executed, the steps of the hydrogen supply control method according to the above-described embodiment can be implemented. Therefore, all the advantageous effects of the above-described hydrogen supply control method are also exhibited, and will not be discussed herein.
A fifth aspect of the invention provides a vehicle including the hydrogen supply control system according to the above aspect.
The vehicle provided by the invention comprises the hydrogen supply control system according to the technical scheme. Therefore, all the advantages of the above-described hydrogen supply control system are also achieved, and are not discussed here.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is an electrical schematic diagram of a hydrogen supply control system in accordance with one embodiment of the present invention;
fig. 2 is a flowchart of a hydrogen supply control method according to an embodiment of the invention;
fig. 3 is a block diagram showing the configuration of a hydrogen supply control apparatus according to an embodiment of the present invention;
fig. 4 is a flowchart of a hydrogen supply control method according to an embodiment of the present invention.
Wherein, the corresponding relation between the reference numbers and the part names in fig. 1 is:
102 shutoff valve, 102a first shutoff valve, 102b second shutoff valve, 102c third shutoff valve, 102d fourth shutoff valve, 104 crash sensor, 106 safety feature, 108 controller, 110 switch, 202 power supply line, 2022 main circuit, 2024 branch circuit, 204 front cabin, 206 cab.
Detailed Description
In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced otherwise than as specifically described herein, and thus the scope of the present invention is not limited by the specific embodiments disclosed below.
Hydrogen supply control systems, methods, devices, readable storage media, and vehicles provided according to some embodiments of the present invention are described below with reference to fig. 1 to 4. The dashed arrows in fig. 1 indicate signal transfer.
As shown in fig. 1, an embodiment of a first aspect of the invention proposes a hydrogen supply control system that is usable with a vehicle, particularly a fuel cell vehicle.
The hydrogen supply control system includes, among other things, a hydrogen tank, a power supply line 202, a shut-off valve 102, a collision sensor 104, and a safety component 106. The hydrogen tank is arranged on the vehicle, the power supply line 202 is connected with the vehicle, and the power supply shutoff valve 102 of the whole hydrogen supply control system can be arranged on the hydrogen tank or on a hydrogen supply pipeline of the hydrogen tank, and the shutoff valve 102 is a normally-closed valve; shut-off valve 102 may turn on the hydrogen tank when energized, and shut-off valve 102 may turn off the hydrogen tank when de-energized. Further, a collision sensor 104 is provided on the power supply line 202, and the collision sensor 104 may be used to detect whether the vehicle has collided, and in the event of a vehicle collision, the collision sensor 104 may directly control the shut-off valve 102 to be deenergized to shut off the hydrogen tank.
Further, as shown in fig. 1, in the event of a vehicle collision, the collision sensor 104 may also send a control signal to de-energize the shut-off valve 102. In addition, a safety member 106 is provided on the vehicle, and the safety member 106 is provided on the power supply line 202 and can be manually operated by the driver. That is, when the vehicle is in a collision or other emergency, the driver can directly control the shut-off valve 102 to be powered off through the safety member 106 to shut off the hydrogen tank.
Specifically, as shown in fig. 1, the shut-off valve 102 is a normally closed valve and can shut off the hydrogen tank in the event of a power loss, and both the collision sensor 104 and the safety member 106 can disconnect the shut-off valve 102 from the power supply line 202 so that the shut-off valve 102 shuts off the hydrogen tank. Also, the above-described collision sensor 104 may disconnect the shut-off valve 102 from the power supply line 202 when a vehicle collision occurs, and the user may actively disconnect the shut-off valve 102 from the power supply line 202 through the safety member 106.
That is, this embodiment can realize the multiple control to shut-off valve 102, and both steerable shut-off valve 102 cuts off the power supply, also can control shut-off valve 102 and turn off, has realized the redundant hydrogen control of cutting off, has promoted the hydrogen safety of whole car to a very big extent.
In this embodiment, further, as shown in fig. 1, the hydrogen supply control system further includes a controller 108. Wherein the controller 108 is disposed on the power supply line 202 and is electrically connected to the impact sensor 104 and the shut-off valve 102. In the event of a vehicle collision, the collision sensor 104 may also send a control signal to the controller 108 to cause the controller 108 to control the shut-off valve 102 to de-energize in accordance with the control signal sent by the collision sensor 104. Also, the controller 108 may also directly control the shut-off valve 102 to shut off. In addition, when the vehicle is in a collision or other emergency, the driver can send a control signal to the controller 108 directly through the safety component 106 to cause the controller 108 to shut off the valve 102 to shut off the hydrogen tank. That is, the invention can realize multiple control of the shut-off valve 102, can control the shut-off valve 102 to be powered off, can also control the shut-off valve 102 to be turned off, realizes redundant hydrogen-off control, and greatly improves the hydrogen safety of the whole vehicle.
In this embodiment, further, as shown in fig. 1, the impact sensor 104, the safety component 106, and the controller 108 are connected in series on the power supply line 202. In this way, when either of the collision sensor 104 and the safety member 106 is triggered, the connection between the shut-off valve 102 and the power supply line 202 is cut off, so that the shut-off valve 102 is de-energized to shut off the hydrogen tank.
That is, in the event of a vehicle collision, the collision sensor 104 may automatically disconnect the shut-off valve 102 from the power supply line 202, and the collision sensor 104 may also send a control signal to the sensor, so that the controller 108 controls the shut-off valve 102 to be powered off according to the control signal sent by the collision sensor 104. Further, even in the case where the vehicle does not collide, the driver can actively disconnect the shut-off valve 102 from the power supply line 202 through the safety member 106. Thus, by the cooperation of the collision sensor 104, the safety member 106, and the controller 108, various controls of the shut-off valve 102 can be realized, and multiple protections of the hydrogen tank and the entire hydrogen supply control system can be realized.
Further in this embodiment, a shut-off valve 102 is provided on the power supply line 202 and between the impact sensor 104 and the controller 108. In this way, firstly it is ensured that the controller 108 can directly control the shut-off valve 102 to open, and secondly it is ensured that the collision sensor 104 and the safety component 106 can shut off the supply of power to the shut-off valve 102 via the controller 108.
In this embodiment, further, the head of the vehicle is generally the part where the impact occurs during the running of the vehicle. Therefore, as shown in fig. 1, the present embodiment provides the collision sensor 104 in the front compartment 204 of the head of the vehicle, and accurately detects whether the vehicle has collided.
Further in this embodiment, the driver is generally located within the cab 206 during travel of the vehicle. Therefore, as shown in fig. 1, the present embodiment provides the safety member 106 in the cabin 206 of the vehicle, so that the user actively disconnects the shut-off valve 102 from the power supply line 202 directly with the safety member 106 in an emergency. Specifically, the safety component 106 is an emergency switch.
In this embodiment, further, as shown in fig. 1, the vehicle includes a plurality of hydrogen tanks (including, but not limited to, a first hydrogen tank, a second hydrogen tank, a third hydrogen tank, and a fourth hydrogen tank), and during operation of the vehicle, the plurality of hydrogen tanks may simultaneously provide hydrogen gas to boost the power of the vehicle. In addition, the number of the shut-off valves 102 is multiple (including but not limited to a first shut-off valve 102a, a second shut-off valve 102b, a third shut-off valve 102c, and a fourth shut-off valve 102d), the multiple shut-off valves 102 are respectively disposed on the multiple hydrogen tanks to ensure that each hydrogen tank can be controlled to be turned on or turned off by the shut-off valve 102 (the first shut-off valve 102a is used for controlling the on/off of the first hydrogen tank, the second shut-off valve 102b is used for controlling the on/off of the second hydrogen tank, the third shut-off valve 102c is used for controlling the on/off of the third hydrogen tank, and the fourth shut-off valve 102d is used for controlling the on/off of the fourth hydrogen tank). In addition, the controller 108 is connected to any of the shut-off valves 102, and can individually control each shut-off valve 102 to open or close. That is, the controller 108 may control any one of the shut-off valves 102 to be opened or closed individually, or may control all of the shut-off valves 102 to be opened or closed simultaneously.
Specifically, the shut-off valves 102 are connected in parallel and are respectively disposed on the branch circuits 2024 of the power supply line 202, so as to ensure that the controller 108 is connected to any one of the shut-off valves 102, and can individually control any one of the shut-off valves 102 to open or close, and can control all the shut-off valves 102 to open or close simultaneously.
It should be noted that, the above description only takes four hydrogen tanks and four shut-off valves 102 as an example, and in the actual design process, an appropriate number of hydrogen tanks and shut-off valves 102 can be provided according to the actual situation, and it is mainly possible to ensure that the number of hydrogen tanks matches the number of shut-off valves 102, and those skilled in the art can understand that.
In this embodiment, further, as shown in fig. 1, the hydrogen supply control system further includes a switch 110. The switch 110 is disposed on the main circuit 2022 of the power supply line 202, such that one end of the switch 110 is electrically connected to the controller 108, and the shut-off valves 102 are electrically connected to the other end of the switch 110 after being connected in parallel. In this way, the switch 110 is connected to the controller 108 and can be turned on or off under the control of the controller 108.
Specifically, as shown in fig. 1, the controller 108 may be configured to control the switch 110 to be turned off, and at this time, the power supply to all the shut-off valves 102 is turned off through the switch 110, so that all the shut-off valves 102 are simultaneously in the off state, and all the hydrogen tanks stop supplying hydrogen. When the controller 108 is further configured to control the switch 110 to be turned on, the power supply to all the shut-off valves 102 is restored through the switch 110, so that all the shut-off valves 102 are simultaneously in the open state, and all the hydrogen tanks are restored to supply hydrogen.
In particular, by the use of the switch 110 described above, hydrogen supply control to the entire vehicle can be further enhanced. Specifically, the hydrogen supply control system according to the present invention may disconnect the shutoff valve 102 from the power supply line 202 by the collision sensor 104, disconnect the shutoff valve 102 from the power supply line 202 by the safety member 106, disconnect the shutoff valve 102 from the power supply line 202 by the switch 110, individually control any one of the shutoff valves 102 to be opened or closed by the controller 108, and individually control all of the shutoff valves 102 to be opened or closed by the controller 108.
Further in this embodiment, the switch 110 may be selected to be a relay. When the relay is in a conducting state under the condition of power-on, the power supply line 202 can be ensured to supply power to the shut-off valve 102, so that the shut-off valve 102 conducts the hydrogen tank. When the relay is in the off state in the event of a power loss, the power supply line 202 stops supplying power to the shutoff valve 102, so that the hydrogen tank stops supplying hydrogen.
In this embodiment, further, the hydrogen supply control system further includes a detection part (not shown in the figure). The detection component is arranged on the hydrogen tank and can be used for detecting the operation data of the whole hydrogen supply control system; the controller 108 is electrically connected to the detection component and can control the operation of the shut-off valve 102 according to the detection result of the detection component. In particular, the detection component includes, but is not limited to, a pressure sensor, a temperature sensor, a hydrogen sensor.
When the detection component employs a pressure sensor or a pressure sensor, the pressure sensor may be used to detect the system pressure of the hydrogen supply control system, and the controller 108 may control the shut-off valve 102 to be closed to stop the hydrogen supply when the system pressure of the hydrogen supply control system is greater than a pressure threshold.
When the detection component employs a temperature sensor, the pressure sensor may be used to detect the system temperature of the hydrogen supply control system, and the controller 108 may control the shut-off valve 102 to close to stop hydrogen supply when the system temperature of the hydrogen supply control system is greater than a temperature threshold.
When the detection component adopts a hydrogen sensor, the pressure sensor can be used for detecting the hydrogen leakage amount of the hydrogen supply control system, and the controller 108 can control the shut-off valve 102 to be shut off to stop hydrogen supply when the hydrogen leakage amount of the hydrogen supply control system is greater than the preset leakage amount.
In this embodiment, the controller 108 may be a central controller VCU. That is, the hydrogen supply control system proposed in the present embodiment can directly realize control based on the VCU of the vehicle.
In this embodiment, the controller 108 may be a hydrogen supply controller FCU, and the vehicle further includes a VCU, and the FCU is connected to the VCU. That is, the hydrogen supply control system proposed by the present invention can realize control based on the FCU of the vehicle.
A second aspect of the present invention provides a hydrogen supply control method for a hydrogen supply control system according to an embodiment of the first aspect of the present invention, as shown in fig. 2, the hydrogen supply control method including:
step 302, controlling a shut-off valve to be closed when any one of a collision sensor and a safety component is triggered;
step 304, judging whether the controller fails or not when the collision sensor and the safety component are not triggered, and controlling the shutoff valve to be closed when the controller fails;
and step 306, judging whether the shut-off valve has faults or not when the controller has no faults, and controlling the shut-off valve to be turned off when the shut-off valve has faults.
The hydrogen supply control method provided by this embodiment may be applied to the hydrogen supply control system according to the embodiment of the first aspect of the present invention. Therefore, all the advantages of the above-described hydrogen supply control system are also achieved, and are not discussed here.
In addition, the hydrogen supply control method provided by the invention realizes multi-stage protection of the vehicle. Specifically, in the event of a vehicle collision, a collision sensor provided at the head of the vehicle is triggered; in the case of an emergency situation of the vehicle, the driver can directly trigger safety features arranged in the vehicle cab. Therefore, the hydrogen supply control method provided by the invention firstly adopts the first-stage protection, detects and judges whether the collision sensor and the safety component are triggered or not, and controls the shutoff valve to be closed when any one of the collision sensor and the safety component is triggered so as to stop hydrogen supply of the hydrogen tank.
And secondly, secondary protection, namely judging whether the controller fails or not when the collision sensor and the safety component are not triggered, and controlling the shutoff valve to be turned off when the controller fails. Therefore, the harm caused by that the vehicle cannot stop supplying hydrogen in time due to the fault of the controller can be effectively solved in time.
And further, the third-stage protection is realized, when the controller does not have a fault, whether the shutoff valve has a fault or not is judged, and when the shutoff valve has a fault, the shutoff valve is controlled to be turned off. Therefore, the harm caused by that the vehicle cannot stop supplying hydrogen in time due to the fault of the shut-off valve can be effectively solved in time.
In addition, when any one of the conditions that the collision sensor is triggered, the safety component is triggered, the controller fails and the shutoff valve fails, the shutoff valve can be controlled to be powered off and shut off simultaneously. Therefore, a multiple-guarantee hydrogen supply loop can be formed, the protection of the hydrogen safety is complete, and the hydrogen supply safety of the vehicle is obviously improved.
Therefore, the hydrogen supply control method provided by the embodiment can realize multiple graded protection of vehicle hydrogen supply and can realize the hydrogen supply safety of the whole vehicle.
In the specific embodiment, in the process of judging whether the controller fails, whether the hydrogen supply controller fails is judged; when the hydrogen supply controller has a fault, the central controller controls the shutoff valve to be closed.
In this embodiment, further, the method of controlling the shut-off valve to shut off includes, but is not limited to, the following:
the first method is as follows: the safety component controls the power-off of the shutoff valve. Specifically, when the vehicle is in collision or other emergency situations, the driver can directly control the shutoff valve to be powered off through the safety component, and the shutoff valve is in a shutoff state when the power is lost and enables the hydrogen tank to stop supplying hydrogen.
The second method comprises the following steps: the collision sensor controls the shutoff valve to power off. Specifically, when the vehicle collides, the collision sensor may directly control the shut-off valve to be powered off to shut off the hydrogen tank, the shut-off valve being in a shut-off state when power is lost and causing the hydrogen tank to stop supplying hydrogen.
The third method comprises the following steps: the controller controls the shutoff valve to be closed. Specifically, in the event of a vehicle collision, the collision sensor may also send a control signal to the controller, so that the controller controls the shut-off valve to be closed according to the control signal sent by the collision sensor, so that the hydrogen tank stops supplying hydrogen. Specifically, the controller can control one or more shut-off valves to be turned off, and the controller can also control all the shut-off valves to be turned off.
The method is as follows: the switch of the hydrogen supply control system controls the shutoff valve to cut off the power. Specifically, the switch may be turned off under the controller of the controller, at which time the power supply to all the shut-off valves is turned off by the switch, and the shut-off valves are in an off state when the power is lost and the hydrogen tank stops supplying hydrogen.
Particularly, when any one of the conditions that the collision sensor is triggered, the safety component is triggered, the controller fails and the shut-off valve fails occurs, the shut-off valve can be controlled to be turned off in the four ways at the same time so as to stop the hydrogen tank from continuously supplying hydrogen. Therefore, a multiple-guarantee hydrogen supply loop can be formed, the protection of the hydrogen safety is complete, and the hydrogen supply safety of the vehicle is obviously improved.
In this embodiment, the controller may be a VCU. That is, the hydrogen supply control system proposed in the present embodiment can directly realize control based on the VCU of the vehicle.
In this embodiment, the controller may be an FCU, the vehicle further includes a VCU, and the FCU is connected to the VCU. That is, the hydrogen supply control system proposed by the present invention can realize control based on the FCU of the vehicle.
In this embodiment, further, the controller failure includes, but is not limited to: controller communication failures and controller functional failures. Particularly, if the controller has a communication failure or a functional failure, the hydrogen supply control system cannot stop supplying hydrogen in time. Therefore, the hydrogen supply control method provided by the invention can detect whether the controller has communication fault or functional fault so as to ensure that a driver can control the hydrogen supply control system to stop supplying hydrogen in time.
In this embodiment, further, the shut-off valve failure includes, but is not limited to: shut-off valve communication failure and shut-off valve functional failure. Particularly, if the shut-off valve has communication failure or functional failure, the hydrogen supply control system cannot stop supplying hydrogen in time directly. Therefore, the hydrogen supply control method provided by the invention can detect whether the shut-off valve has communication fault or functional fault, so as to ensure that a driver can control the hydrogen supply control system to stop supplying hydrogen in time.
In this embodiment, further, when the shut-off valve is not malfunctioning, hydrogen supply may be made during startup of the vehicle. In addition, the operation data of the whole hydrogen supply control system is detected by the detection component in the hydrogen supply process; and then the shut-off valve is controlled to work according to the detection result of the detection component. In particular, the detection component includes, but is not limited to, a pressure sensor, a temperature sensor, a hydrogen sensor.
When the detection component adopts a pressure sensor or a pressure sensor, the pressure sensor can be used for detecting the system pressure of the hydrogen supply control system, so that the controller controls the shutoff valve to be shut off to stop hydrogen supply when the system pressure of the hydrogen supply control system is greater than a pressure threshold value.
When the detection component adopts the temperature sensor, the pressure sensor can be used for detecting the system temperature of the hydrogen supply control system, so that the controller can control the shutoff valve to be shut off to stop hydrogen supply when the system temperature of the hydrogen supply control system is greater than a temperature threshold value.
When the detection part adopts the hydrogen sensor, the pressure sensor can be used for detecting the hydrogen leakage amount of the hydrogen supply control system, and then the controller can control the shutoff valve to be shut off to stop hydrogen supply when the hydrogen leakage amount of the hydrogen supply control system is larger than the preset leakage amount.
As shown in fig. 3, a hydrogen supply control device 400 is provided in an embodiment of the third aspect of the present invention, and is used in the hydrogen supply control system of the first aspect of the present invention, so that all the beneficial effects of the hydrogen supply control system are also achieved, and will not be discussed herein.
Further, the hydrogen supply control device 400 according to the present invention realizes multi-stage protection of the vehicle. Specifically, in the event of a vehicle collision, a collision sensor provided at the head of the vehicle is triggered; in the case of an emergency situation of the vehicle, the driver can directly trigger safety features arranged in the vehicle cab. Therefore, the hydrogen supply control method provided by the invention firstly adopts the first-stage protection, detects and judges whether the collision sensor and the safety component are triggered, and the control module 402 controls the shutoff valve to be closed when any one of the collision sensor and the safety component is triggered, so that the hydrogen tank stops supplying hydrogen.
Secondly, for the second level of protection, when neither the collision sensor nor the safety component is triggered, the determination module 404 determines whether the controller is out of order, and the control module 402 controls the shutoff valve to be turned off when the controller is out of order. Therefore, the harm caused by that the vehicle cannot stop supplying hydrogen in time due to the fault of the controller can be effectively solved in time.
Further, for the third level of protection, when the controller fails, the determining module 404 determines whether the shut-off valve fails, and the control module 402 controls the shut-off valve to be turned off when the shut-off valve fails. Therefore, the harm caused by that the vehicle cannot stop supplying hydrogen in time due to the fault of the shut-off valve can be effectively solved in time.
In addition, when any one of the conditions that the collision sensor is triggered, the safety component is triggered, the controller fails and the shutoff valve fails, the shutoff valve can be controlled to be powered off and shut off simultaneously. Therefore, a multiple-guarantee hydrogen supply loop can be formed, the protection of the hydrogen safety is complete, and the hydrogen supply safety of the vehicle is obviously improved.
In addition, the hydrogen supply control device 400 further includes a detection module, which can be used to detect the operation parameters of the hydrogen supply control system, and the control module 402 is further used to control the operation of the shut-off valve according to the detection result of the detection component of the hydrogen supply control system when the shut-off valve is not in fault; wherein, the detection module comprises one or the combination of the following: pressure sensor, temperature sensor, hydrogen sensor.
When the detection component adopts a pressure sensor or a pressure sensor, the pressure sensor can be used for detecting the system pressure of the hydrogen supply control system, so that the controller controls the shutoff valve to be shut off to stop hydrogen supply when the system pressure of the hydrogen supply control system is greater than a pressure threshold value.
When the detection module employs a temperature sensor, the pressure sensor may be configured to detect a system temperature of the hydrogen supply control system, so that the control module 402 may control the shut-off valve to shut off to stop hydrogen supply when the system temperature of the hydrogen supply control system is greater than a temperature threshold.
When the detection module adopts the hydrogen sensor, the pressure sensor can be used for detecting the hydrogen leakage amount of the hydrogen supply control system, so that the control module 402 can control the shutoff valve to be shut off to stop hydrogen supply when the hydrogen leakage amount of the hydrogen supply control system is greater than the preset leakage amount.
When the detection module employs a pressure sensor, the pressure sensor may be configured to detect a system pressure of the hydrogen supply control system, so that the control module 402 controls the shut-off valve to shut off to stop hydrogen supply when the system pressure of the hydrogen supply control system is greater than a pressure threshold.
A fourth aspect embodiment of the present invention provides a readable storage medium, on which a program or instructions are stored, which when executed by a processor, implement the steps of the hydrogen supply control method according to the first aspect embodiment of the present invention.
The program or instructions stored in the read storage medium proposed by the present invention, when executed, may implement the steps of the hydrogen supply control method as an embodiment of the first aspect of the present invention. Therefore, all the advantageous effects of the above-described hydrogen supply control method are also exhibited, and will not be discussed herein.
An embodiment of a fifth aspect of the invention provides a vehicle including a hydrogen supply control system as in the embodiment of the first aspect of the invention.
The present embodiment proposes a vehicle including a hydrogen supply control system as an embodiment of the first aspect of the invention. Therefore, all the advantageous effects of the above-described hydrogen supply control method are also exhibited, and will not be discussed herein.
Specifically, the vehicle is a fuel cell vehicle. The hydrogen tank is arranged on the vehicle, and the power supply line is connected with the vehicle and can ensure the power supply of the whole hydrogen supply control system.
In the present environment, a new energy power form has become the mainstream, and the hydrogen fuel cell vehicle is widely applied. In the related art, a shut-off valve is added to a hydrogen tank in a hydrogen supply control system, and fault judgment is performed through a hydrogen supply controller, but the possibility of functional fault or communication fault of the hydrogen supply controller or the shut-off valve exists, and there is no way to stop hydrogen supply in time. In the related technology, the whole vehicle is added with collision detection and monitoring functions, a collision sensor sends a signal to a central controller to cut off power and hydrogen, but the signal has the possibility of a transmission terminal, so that emergency and hydrogen cutting cannot be realized in time. In the related technology, the central controller and the hydrogen supply controller are used in a matched mode, fault levels are refined, and hydrogen breaking protection is conducted on related faults, but a hydrogen breaking loop on an electric control framework is single, and redundant hydrogen safety protection is not conducted.
According to the invention, the collision sensor 104 is arranged in the front cabin 204 of the whole vehicle, the emergency switch is arranged in the cab 206 and serves as the safety component 106, and meanwhile, the multi-loop hydrogen-cut-off electric control framework is designed, so that redundant hydrogen safety protection under various vehicle fault conditions is realized.
Specifically, as shown in fig. 1, a collision sensor 104 is arranged in a front cabin 204 of the vehicle, the collision sensor 104 is triggered when the vehicle collides, and the collision sensor 104 not only sends a signal to turn off the shutoff valve 102 through the controller 108, but also cuts off the power supply of the hydrogen supply control system, so that hydrogen is cut off rapidly, and hydrogen safety redundancy protection is formed.
In addition, the cab 206 is provided with the safety component 106, and when the whole vehicle has a serious fault or has serious hydrogen leakage, a driver can manually trigger the safety component 106 to form high-priority active hydrogen safety protection.
In addition, when a serious fault occurs in the fuel cell system and the hydrogen supply control system, through the controller 108(VCU or FCU) at a higher level and the hydrogen-cut electrical architecture with multiple loops, not only can the supply of hydrogen be cut off by driving a single cut-off valve 102 at a low side (i.e. the controller 108 controls a plurality of cut-off valves 102 to be cut off individually), but also the hydrogen supply of the hydrogen supply system can be cut off by directly controlling the on-off of the switch 110 through driving at a high side, thereby realizing the hydrogen safety redundancy protection.
Specifically, as shown in fig. 4, a more specific hydrogen supply control method is further provided in an embodiment of the present invention, including:
502, electrifying, awakening the controller, and starting a shutoff valve to enter a hydrogen supply mode;
step 504, judging whether the collision sensor triggers or breaks the safety component, if so, executing steps 514 and 516, otherwise, executing step 506;
step 506, judging whether the hydrogen supply controller has a fault, if so, executing step 514, otherwise, executing step 508;
step 508, judging whether the shut-off valve body has a fault, if so, executing step 514, otherwise, executing step 510;
step 510, judging whether the hydrogen supply control system or the fuel cell system has serious faults, if so, executing step 518, otherwise, executing step 512;
step 512, keeping the state of the shut-off valve unchanged;
step 514, the central controller or the hydrogen supply controller controls the switch to cut off the main loop power supply;
step 516, cutting off a main loop power supply;
and 518, the central controller or the hydrogen supply controller controls the shutoff valve to be closed, and the hydrogen supply is cut off.
Specifically, the hydrogen fuel cell vehicle is powered up to wake up the controller 108 (both the central controller and the hydrogen supply controller are awake) and the subsequent fuel cell engine begins to operate. And when the hydrogen supply control system starts to supply hydrogen, entering a flow of a hydrogen cut-off protection control strategy. The crash sensor 104, safety feature 106 and switch 110 are located on the main circuit that shuts off power to the valve 102. When the normal process is started, the hydrogen supply system is in a closed state, and as long as one of the devices is triggered to be turned off, the power supply of all the shut-off valves 102 can be directly cut off, so that the effect of timely cutting off hydrogen is achieved.
In addition, in the control strategy, the first level preferentially determines whether the vehicle has an emergency, and the determination is carried out by the passively triggered collision sensor 104 or the actively triggered safety component 106; if not, entering a second stage, and detecting and judging whether the hydrogen supply controller generates communication or functional failure; if not, detecting and judging whether the shut-off valve 102 has communication or functional failure; if not, entering the last fourth stage, performing a fault logic judgment stage of a normal fuel cell system and a hydrogen supply control system, and if not, keeping a normal hydrogen supply process until the next normal valve closing command or a hydrogen cut-off command triggered by fault.
In particular, in the process of detecting whether the hydrogen supply controller is in communication or malfunction, the detection may be performed by the central controller (since the upper-stage controller 108 has a function of detecting whether the lower-stage controller 108 is malfunctioning, as will be understood by those skilled in the art, it will not be discussed in detail herein). In addition, in the process of detecting and determining whether the shut-off valve 102 body is in communication or malfunctioning, the detection can be performed by a central controller or a hydrogen supply controller, as will be understood by those skilled in the art, and will not be discussed in detail herein.
Particularly, after the first three stages of faults occur, the power supply line 202 stops supplying power to the shutoff valve 102, meanwhile, the collision sensor 104 sends a fault signal to the central controller or the hydrogen supply controller, then the central controller or the hydrogen supply controller drives the shutoff valve 102 to be turned off through the low side, the central controller or the hydrogen supply controller drives the shutoff switch 110 through the high side to cut off the hydrogen-cut control main loop, the hydrogen supply loop is cut off for multiple guarantees, and hydrogen safety protection is completed.
In addition, the fourth-stage normal hydrogen supply and fuel system faults are defined according to specific faults, and a hydrogen cut-off instruction is issued by the central controller or the hydrogen supply controller, so that the safety is guaranteed. For example, when the system pressure of the hydrogen supply control system is greater than the pressure threshold, the shutoff valve 102 is controlled to be closed to stop hydrogen supply; when the system temperature of the hydrogen supply control system is greater than the temperature threshold value, the shutoff valve 102 is controlled to be closed to stop hydrogen supply; when the hydrogen leakage amount of the hydrogen supply control system is larger than the preset leakage amount, the shutoff valve 102 is controlled to be closed to stop hydrogen supply.
Therefore, the technical scheme provided by the invention can realize the hydrogen safety of the whole vehicle from the aspect of electric control through priority fault treatment measures and redundant hydrogen-cut control logic, and meets the relevant laws and regulations of the hydrogen safety of fuel cell vehicles at home and abroad.
Specifically, the technical scheme provided by the invention forms an electric control framework of multi-loop redundancy hydrogen cut-off, fully considers the influence caused by the electrical and functional faults of the shut-off valve 102 and the controller 108, realizes hydrogen safety protection under extreme conditions, and can eliminate the influence caused by the faults of the shut-off valve 102 and the controller 108. Specifically, in the technical scheme provided by the invention, the collision sensor 104 can send a collision signal to the controller 108, the shutoff valve 102 is turned off by the controller 108 signal, and hydrogen can be cut off in time by directly cutting off the power supply of the shutoff valve 102, so that double protection is realized. Specifically, in the technical scheme provided by the invention, a driver can actively trigger the safety component 106 to cut off the hydrogen supply in an emergency, so that the safety of drivers and passengers and the whole vehicle is fully protected.
In the description of the present invention, the terms "plurality" or "a plurality" refer to two or more, and unless otherwise specifically limited, the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention; the terms "connected," "mounted," "secured," and the like are to be construed broadly and include, for example, fixed connections, removable connections, or integral connections; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the description herein, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (18)

1. A hydrogen supply control system, characterized by comprising:
a hydrogen tank;
a power supply line;
the shut-off valve is arranged on the power supply line and can be used for controlling the connection or disconnection of the hydrogen tank, and the shut-off valve is a normally-closed valve;
the collision sensor is arranged on the power supply line and can be used for controlling the shutoff valve to be powered off;
and the safety component is arranged on the power supply circuit and can be used for controlling the shutoff valve to be powered off.
2. The hydrogen supply control system according to claim 1, further comprising:
and the controller is arranged on the power supply circuit, is electrically connected with the collision sensor, the safety component and the shutoff valve and can control the shutoff valve to work according to the collision sensor and/or the safety component.
3. The hydrogen supply control system according to claim 1,
the safety member and the collision sensor are connected in series on the power supply line.
4. The hydrogen supply control system according to claim 2,
the shutoff valve is disposed between the collision sensor and the controller.
5. The hydrogen supply control system according to claim 1,
the collision sensor is arranged at the head of the vehicle; and/or
The safety member is provided in a cab of a vehicle.
6. The hydrogen supply control system according to claim 2 or 4,
the hydrogen supply control system includes a plurality of the hydrogen tanks;
the hydrogen supply control system comprises a plurality of shut-off valves which are respectively arranged on the hydrogen tanks, and the controller is connected with any one of the shut-off valves.
7. The hydrogen supply control system according to claim 6,
the shutoff valves are connected in parallel and are respectively arranged on branch loops of the power supply line.
8. The hydrogen supply control system according to claim 2 or 4,
the hydrogen supply control system further comprises a switch, and the switch is arranged on the main loop of the power supply circuit and electrically connected with the controller.
9. The hydrogen supply control system according to claim 8,
the switch is a relay.
10. The hydrogen supply control system according to claim 2 or 4, characterized by further comprising:
a detection member provided on the hydrogen tank and electrically connected to the controller;
the controller can control the shut-off valve to work according to the detection result of the detection component;
wherein the detection component comprises one or a combination of: pressure sensor, temperature sensor, hydrogen sensor.
11. The hydrogen supply control system according to claim 2 or 4,
the controller is a central controller of the vehicle; or
The controller is a hydrogen supply controller, and the vehicle further comprises a central controller which is electrically connected with the hydrogen supply controller.
12. A hydrogen supply control method for a hydrogen supply control system according to claims 1 to 11, characterized by comprising:
controlling the shut-off valve to shut off when either one of the collision sensor and the safety member is triggered;
when the collision sensor and the safety component are not triggered, judging whether a controller fails or not, and controlling the shutoff valve to be turned off when the controller fails;
and when the controller does not have a fault, judging whether the shut-off valve has a fault or not, and controlling the shut-off valve to be turned off when the shut-off valve has a fault.
13. The hydrogen supply control method according to claim 12, wherein controlling the shutoff valve to shut off specifically comprises:
the controller controls the shutoff valve to be closed; and/or
And the switch of the hydrogen supply control system controls the shutoff valve to be powered off.
14. The hydrogen supply control method according to claim 12,
the controller is a central controller or a hydrogen supply controller; and/or
The controller failing comprises: the controller communication failure, the controller function failure; and/or
The failure of the shut-off valve comprises: communication failure of the shut-off valve and functional failure of the shut-off valve.
15. The hydrogen supply control method according to any one of claims 12 to 14,
when the shut-off valve is not in fault, controlling the shut-off valve to work according to the detection result of the detection part of the hydrogen supply control system;
wherein the detection component comprises one or a combination of: pressure sensor, temperature sensor, hydrogen sensor.
16. A hydrogen supply control device for a hydrogen supply control system according to claims 1 to 11, the hydrogen supply control device comprising:
a control module for controlling the shut-off valve to shut off when either one of the collision sensor and the safety component is triggered;
the judging module is used for judging whether the controller has a fault or not when the collision sensor and the safety component are not triggered;
the control module is also used for controlling the shutoff valve to be turned off when the controller fails;
the judging module is also used for judging whether the shut-off valve has a fault or not when the controller has no fault;
the control module is further used for controlling the shutoff valve to be turned off when the shutoff valve fails.
17. A readable storage medium on which a program or instructions are stored, characterized in that the program or instructions, when executed by a processor, implement the steps of the hydrogen supply control method according to any one of claims 12 to 15.
18. A vehicle characterized by comprising the hydrogen supply control system according to any one of claims 1 to 11.
CN202110712771.3A 2021-06-25 2021-06-25 Hydrogen supply control system, method, device, readable storage medium and vehicle Pending CN113246803A (en)

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Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104238601A (en) * 2014-05-19 2014-12-24 李然 Air cooling type hydrogen fuel stand-by power monitoring system
US20200096158A1 (en) * 2017-05-29 2020-03-26 Bayerische Motoren Werke Aktiengesellschaft Pressure Vessel System for a Vehicle
CN109509900A (en) * 2017-09-14 2019-03-22 郑州宇通客车股份有限公司 A kind of gas-fed fuel cell control system and vehicle
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