CN114074545A - Hydrogen system safety control method and device for fuel cell vehicle, electronic device, and vehicle - Google Patents

Hydrogen system safety control method and device for fuel cell vehicle, electronic device, and vehicle Download PDF

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Publication number
CN114074545A
CN114074545A CN202010839701.XA CN202010839701A CN114074545A CN 114074545 A CN114074545 A CN 114074545A CN 202010839701 A CN202010839701 A CN 202010839701A CN 114074545 A CN114074545 A CN 114074545A
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Prior art keywords
cylinder
hydrogen storage
temperature
value
safety threshold
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Inventor
秦志东
魏长河
宋祎博
王超
张文辉
曲迪
李丹
王枫
魏文博
张秀宾
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Beiqi Foton Motor Co Ltd
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Beiqi Foton Motor Co Ltd
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Priority to CN202010839701.XA priority Critical patent/CN114074545A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
    • B60K15/03—Fuel tanks
    • 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
    • B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
    • B60L3/0023—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train
    • B60L3/0053—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train relating to fuel cells
    • 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
    • B60L50/00—Electric propulsion with power supplied within the vehicle
    • B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
    • B60L50/70—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by fuel cells
    • B60L50/71—Arrangement of fuel cells within vehicles specially adapted for electric vehicles
    • 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
    • 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
    • B60L58/32—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling fuel cells for controlling the temperature of fuel cells, e.g. by controlling the electric load
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
    • B60K15/03—Fuel tanks
    • B60K2015/0321—Fuel tanks characterised by special sensors, the mounting thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
    • B60K15/03—Fuel tanks
    • B60K2015/03256—Fuel tanks characterised by special valves, the mounting thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
    • B60K15/03—Fuel tanks
    • B60K2015/03309—Tanks specially adapted for particular fuels
    • B60K2015/03315—Tanks specially adapted for particular fuels for hydrogen
    • 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 Energy (AREA)
  • Sustainable Development (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Power Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)

Abstract

The present disclosure relates to a hydrogen system safety control method and device, an electronic device and a vehicle of a fuel cell vehicle, which belongs to the field of fuel cell vehicles, wherein the fuel cell vehicle comprises a plurality of hydrogen storage cylinders, each hydrogen storage cylinder is provided with a sensor and a cylinder valve, the sensor comprises a temperature sensor, and the method comprises the following steps: acquiring current sensor data of a target hydrogen storage cylinder, wherein the sensor data comprises the temperature in the cylinder, and the target hydrogen storage cylinder is any one of the plurality of hydrogen storage cylinders; determining the current state of the target hydrogen storage cylinder and a safety threshold corresponding to the state; and adjusting the opening value of the cylinder valve of the target hydrogen storage cylinder according to the size relation between the sensor data and the safety threshold value.

Description

Hydrogen system safety control method and device for fuel cell vehicle, electronic device, and vehicle
Technical Field
The present disclosure relates to a hydrogen system safety control of a fuel cell vehicle, and in particular, to a hydrogen system safety control method and apparatus of a fuel cell vehicle, an electronic device, and a vehicle.
Background
The hydrogen fuel cell automobile is an important branch in a plurality of new energy automobile forms, chemical energy is directly converted into electric energy to provide power through the reaction of hydrogen and oxygen, the fuel of the fuel cell automobile is hydrogen, and the fuel cell automobile has certain potential safety hazard due to the characteristics of the hydrogen, such as leakage, explosiveness, hydrogen brittleness and the like, and the safety of the fuel cell automobile also becomes a first concern of people.
The safety design of the hydrogen storage cylinder on the existing fuel cell vehicle mainly depends on the monitoring of a hydrogen concentration sensor on the hydrogen concentration and the monitoring of a pressure sensor in the hydrogen storage cylinder on the pressure of the hydrogen cylinder, when the corresponding sensor monitors that the hydrogen concentration is higher or the pressure is higher, the switch valves at the bottle openings of all the hydrogen storage cylinders are directly closed, so that the leakage of hydrogen and the safety of hydrogen are prevented, the control mode is simple and violent, and the use of a hydrogen system of the whole vehicle and the service life of a cylinder valve and the like are influenced.
Disclosure of Invention
The disclosure mainly aims to provide a hydrogen system safety control method and device for a fuel cell vehicle, an electronic device and a vehicle, and is used for solving the problem of lack of precision due to simple safety control mode of a hydrogen system in the related art.
In order to achieve the above object, in a first aspect, the present disclosure provides a hydrogen system safety control method of a fuel cell vehicle including a plurality of hydrogen storage cylinders, wherein each of the hydrogen storage cylinders is provided with a sensor including a temperature sensor and a cylinder valve, the method comprising:
acquiring current sensor data of a target hydrogen storage cylinder, wherein the sensor data comprises the temperature in the cylinder, and the target hydrogen storage cylinder is any one of the plurality of hydrogen storage cylinders;
determining the current state of the target hydrogen storage cylinder and a safety threshold corresponding to the state;
and adjusting the opening value of the cylinder valve of the target hydrogen storage cylinder according to the size relation between the sensor data and the safety threshold value.
Optionally, the state is a deflation state, and the safety threshold corresponding to the deflation state is a temperature lower limit value;
the adjusting the opening value of the cylinder valve of the target hydrogen storage cylinder according to the magnitude relation between the sensor data and the safety threshold value comprises the following steps:
adjusting an opening value of a cylinder valve of the target hydrogen storage cylinder according to an absolute value of a difference between the in-cylinder temperature and the lower temperature limit value when the in-cylinder temperature is greater than the lower temperature limit value, wherein the opening value is positively correlated with the absolute value;
and under the condition that the temperature in the cylinder is equal to the lower temperature limit value, adjusting the opening value of the cylinder valve of the target hydrogen storage cylinder to close the cylinder valve.
Optionally, the state is a filling state, and a safety threshold corresponding to the filling state is a temperature upper limit value;
the adjusting the opening value of the cylinder valve of the target hydrogen storage cylinder according to the magnitude relation between the sensor data and the safety threshold value comprises the following steps:
adjusting an opening value of a cylinder valve of the target hydrogen storage cylinder according to an absolute value of a difference between the in-cylinder temperature and the upper temperature limit value when the in-cylinder temperature is less than the upper temperature limit value, wherein the opening value is positively correlated with the absolute value;
and under the condition that the temperature in the cylinder is equal to the upper limit value of the temperature, adjusting the opening value of a cylinder valve of the target hydrogen storage cylinder to close the cylinder valve.
Optionally, the state is a static state, and a safety threshold corresponding to the static state is a speed upper limit value;
the adjusting the opening value of the cylinder valve of the target hydrogen storage cylinder according to the magnitude relation between the sensor data and the safety threshold value comprises the following steps:
and under the condition that the rising rate of the temperature in the cylinder is greater than or equal to the upper limit value of the rate, adjusting the opening values of the cylinder valves of all the hydrogen storage cylinders so as to close the cylinder valves of all the hydrogen storage cylinders.
Optionally, the method further comprises:
and sending a prompt message through a vehicle-mounted terminal under the condition that the temperature in the bottle or the temperature rising rate is greater than or equal to the safety threshold.
Optionally, the sensor further comprises a pressure sensor, the sensor data further comprises in-bottle pressure, the safety thresholds comprise a temperature safety threshold and a pressure safety threshold, the method further comprising:
and adjusting the opening value of the cylinder valve of the target hydrogen storage cylinder according to the magnitude relation between the temperature in the cylinder and the temperature safety threshold value and the magnitude relation between the pressure in the cylinder and the pressure safety threshold value.
In a second aspect, the present disclosure also provides a control apparatus applied to a fuel cell vehicle including a plurality of hydrogen storage cylinders, wherein each of the hydrogen storage cylinders is provided with a sensor including a temperature sensor and a cylinder valve, the control apparatus including:
the acquisition module is used for acquiring current sensor data of a target hydrogen storage cylinder, wherein the sensor data comprises the temperature in the cylinder, and the target hydrogen storage cylinder is any one of the hydrogen storage cylinders;
the acquisition module is used for acquiring current sensor data of a target hydrogen storage cylinder, wherein the sensor data comprises the temperature in the cylinder, and the target hydrogen storage cylinder is any one of the hydrogen storage cylinders;
the determining module is used for determining the current state of the target hydrogen storage cylinder and a safety threshold corresponding to the state;
and the adjusting module is used for adjusting the opening value of the cylinder valve of the target hydrogen storage cylinder according to the magnitude relation between the sensor data and the safety threshold value.
Optionally, the state is a static state, the safety threshold corresponding to the static state is a speed upper limit value, and the adjusting module is specifically configured to:
and under the condition that the rising rate of the temperature in the cylinder is greater than or equal to the upper limit value of the rate, adjusting the opening values of the cylinder valves of all the hydrogen storage cylinders so as to close the cylinder valves of all the hydrogen storage cylinders.
In a third aspect, the present disclosure also provides an electronic device, including:
one or more processors;
a storage device having one or more programs stored thereon,
when executed by the one or more processors, cause the one or more processors to implement the methods described above.
In a fourth aspect, the present disclosure also provides a fuel cell vehicle comprising a plurality of hydrogen storage cylinders, wherein each of the hydrogen storage cylinders is provided with a sensor and a cylinder valve, and a control device connected to the sensor and the cylinder valve, the sensor comprising a temperature sensor;
the control device is used for executing the method.
Through the technical scheme, the method has the following technical effects: according to the sensor data of each hydrogen storage cylinder, each hydrogen storage cylinder is independently controlled, and according to the safety threshold values of the hydrogen storage cylinders under different states, the state control of a single hydrogen storage cylinder is realized, so that the control is more accurate, and the operating efficiency of the whole vehicle is effectively improved. And the cylinder valve of the hydrogen storage cylinder has the capacity of adjusting the opening value, so that the hydrogen flow of the hydrogen storage cylinder can be controlled by adjusting the opening value of the cylinder valve except for closing and opening the cylinder valve, for example, the flow in the air bleeding process and the flow in the filling process, and further, the safety hidden danger caused by overlarge or undersize flow can be avoided, the safety is improved, the service life of the hydrogen cylinder and the related valve body is prolonged, and the finished vehicle cost is reduced.
Additional features and advantages of the disclosure will be set forth in the detailed description which follows.
Drawings
The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure without limiting the disclosure. In the drawings:
fig. 1 is a flowchart of a hydrogen system safety control method of a fuel cell vehicle according to an embodiment of the present disclosure.
Fig. 2 is another flowchart of a hydrogen system safety control method of a fuel cell vehicle according to an embodiment of the present disclosure.
Fig. 3 is a block diagram of a control device according to an embodiment of the present disclosure.
Fig. 4 is a block diagram of an electronic device according to an embodiment of the present disclosure.
Fig. 5 is a block diagram of a vehicle according to an embodiment of the present disclosure.
Detailed Description
The following detailed description of specific embodiments of the present disclosure is provided in connection with the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present disclosure, are given by way of illustration and explanation only, not limitation.
In the related art, the design of hydrogen safety of a hydrogen storage cylinder on a current fuel cell vehicle mainly depends on monitoring of a hydrogen concentration sensor on hydrogen concentration and monitoring of a pressure sensor in the hydrogen cylinder on the pressure of the hydrogen cylinder, and when the corresponding sensor monitors that the hydrogen concentration is higher or the pressure is higher, a switch valve at the opening of the hydrogen storage cylinder is directly closed, so that hydrogen leakage and hydrogen safety accidents are prevented, and the design has the following defects: the hydrogen system safety monitoring mode is simple, the accuracy and the precision are lacked, when the hydrogen concentration value or the pressure is monitored to be higher, the cylinder valve is directly closed, the filling or discharging speed of the hydrogen storage cylinder cannot be independently controlled, and the control strategy is simple; the rough control mode may affect the normal operation and use of the whole vehicle, for example, when the vehicle runs at high speed, the deflation of all the hydrogen storage cylinders is interrupted due to the pressure rise of one hydrogen storage cylinder, so that the safety accident is caused by the insufficient power of the vehicle; the frequent opening and closing of the switch valve can be caused, the service life of the hydrogen bottle and the related valve body is influenced, and the cost of the whole vehicle is increased; and the hydrogen storage cylinder can not be adjusted according to each state of the hydrogen storage cylinder, and the whole hydrogen safety of the fuel cell vehicle is not high.
In view of the above technical problems, the embodiments of the present disclosure provide a hydrogen system safety control method for a fuel cell vehicle, which is applied to a fuel cell vehicle equipped with a plurality of hydrogen storage cylinders, and the execution subject of the method may be, for example, a hydrogen system controller of the fuel cell vehicle, wherein each hydrogen storage cylinder is equipped with a sensor and a cylinder valve, and the sensor includes a temperature sensor. Fig. 1 is a flowchart of a hydrogen system safety control method of a fuel cell vehicle according to an embodiment of the present disclosure, and as shown in the drawing, the method includes the following steps:
s11, obtaining the current sensor data of the target hydrogen storage cylinder, wherein the sensor data comprises the temperature in the cylinder, and the target hydrogen storage cylinder is any one of a plurality of hydrogen storage cylinders.
For example, by providing different types of sensors for each hydrogen storage cylinder, the sensor data may include information such as the cylinder internal pressure, the current hydrogen concentration, and the opening state of the cylinder valve, in addition to the cylinder internal temperature. In some embodiments, the manner in which sensor data is acquired may be that the performing subject of the method acquires electrical signals of the sensor to which it is electrically connected.
And S12, determining the current state of the target hydrogen storage cylinder and a safety threshold corresponding to the state.
That is, different states of the hydrogen storage cylinder correspond to different safety thresholds. Specifically, the current state of the target hydrogen storage cylinder may be determined by the opening state of the cylinder valve of the target hydrogen storage cylinder and the hydrogen concentration variation condition of the target hydrogen storage cylinder, for example, when the cylinder valve is closed, the target hydrogen storage cylinder is in a static state; when the cylinder valve is opened and the hydrogen concentration of the target hydrogen storage cylinder rises, the target hydrogen storage cylinder is in a filling state; when the cylinder valve is opened and the hydrogen concentration of the target hydrogen storage cylinder is reduced, the target hydrogen storage cylinder is in a deflation state. In addition, the current state of the target hydrogen storage cylinder can also be determined according to the opening state of the cylinder valve and the temperature change condition of the target hydrogen storage cylinder, and the method for determining the current state of the target hydrogen storage cylinder is not limited in the embodiment of the disclosure. The safety threshold may be set based on safety requirements of the hydrogen storage cylinder in different states, for example, when the hydrogen storage cylinder is in a gas release state, in order to avoid a certain damage to the hydrogen storage cylinder and the cylinder valve due to an excessive temperature drop, at this time, the safety threshold is set to a lower limit of temperature that does not damage the hydrogen storage cylinder and the cylinder valve.
And S13, adjusting the opening value of the cylinder valve of the target hydrogen storage cylinder according to the magnitude relation between the sensor data and the safety threshold value.
The cylinder valve may be a flow rate adjustment valve, for example, and the flow rate adjustment valve has a capability of adjusting the magnitude of the flow rate by adjusting the magnitude of the opening degree value as compared with an on-off valve.
Adopt above-mentioned technical scheme, realized according to hydrogen storage cylinder self state, and the safe threshold value of setting for under the different states, carry out the independent control to each hydrogen storage cylinder, and, hydrogen storage cylinder's bottle valve utensil is equipped with the ability of adjusting the flow size through the size of adjusting the opening value, make the control to hydrogen storage cylinder except closing the bottle valve and opening the bottle valve, can also control the hydrogen gas flow size of hydrogen storage cylinder through the opening value of adjusting the bottle valve, for example, the flow size of gassing in-process and the flow size of filling in-process, and then can avoid because the potential safety hazard that the too big or undersize of flow leads to, precision and security have been improved.
In order to make those skilled in the art understand the technical solutions provided by the embodiments of the present disclosure, the following detailed description is made on the above control methods.
The method provided by the embodiment of the disclosure further comprises the following steps: and sending a prompt message through the vehicle-mounted terminal under the condition that the temperature in the target hydrogen storage cylinder or the temperature rise rate is greater than or equal to a safety threshold corresponding to the current state of the target hydrogen storage cylinder. To remind the owner or other related personnel that the vehicle may be in a dangerous condition for manual handling to ensure the safety of the vehicle.
For example, in the case where it is determined in step S12 that the current state of the target hydrogen storage cylinder is the gas release state, and the safety threshold corresponding to the gas release state is the temperature lower limit value, step S13 may include:
adjusting the opening value of the cylinder valve of the target hydrogen storage cylinder according to the absolute value of the difference between the temperature in the cylinder and the lower temperature limit value when the temperature in the cylinder is greater than the lower temperature limit value, wherein the opening value is positively correlated with the absolute value; and under the condition that the temperature in the cylinder is equal to the lower temperature limit value, adjusting the opening value of the cylinder valve of the target hydrogen storage cylinder to close the cylinder valve.
At this time, in the process of discharging the hydrogen storage cylinder, along with the reduction of the gas pressure in the cylinder, the temperature in the hydrogen storage cylinder can be reduced due to the expansion refrigeration action of the discharged gas, when the temperature is reduced to a certain range, certain damage can be caused to the hydrogen storage cylinder and the cylinder valve thereof, and at this time, the safety threshold value is set as the lower limit value of the temperature which does not damage the hydrogen storage cylinder and the cylinder valve. By adopting the scheme, when the hydrogen storage cylinder is deflated, if the difference value between the temperature in the cylinder and the safety threshold value is larger, the deflation speed is accelerated by increasing the opening value of the cylinder valve, and the running of a vehicle is ensured; if the difference between the temperature in the cylinder and the safety threshold is small, the opening value of the cylinder valve is reduced to slow the air release speed, and the temperature reduction speed is reduced, so that the temperature is kept above the threshold value which does not damage the hardware of the vehicle. The safety of the vehicle and the service life of the hydrogen storage cylinder and the cylinder valve are ensured.
For another example, in the case that it is determined in step S12 that the current state of the target hydrogen storage cylinder is the charging state, and the safety threshold corresponding to the charging state is the upper temperature limit value, step S13 may include:
adjusting the opening value of the cylinder valve of the target hydrogen storage cylinder according to the absolute value of the difference between the temperature in the cylinder and the upper limit value of the temperature under the condition that the temperature in the cylinder is less than the upper limit value of the temperature, wherein the opening value is positively correlated with the absolute value; and under the condition that the temperature in the cylinder is equal to the upper limit value of the temperature, adjusting the opening value of the cylinder valve of the target hydrogen storage cylinder to close the cylinder valve.
At the moment, because in the filling process of the hydrogen storage cylinder, the temperature in the cylinder rises along with the rise of the air pressure in the cylinder, when the temperature rises to a certain threshold value, certain damage can be caused to the hydrogen storage cylinder and the cylinder valve of the hydrogen storage cylinder, explosion or leakage can be caused, and the safety threshold value is set as the upper limit value of the temperature which does not damage the hydrogen storage cylinder and the cylinder valve and ensures the safety of the hydrogen system. By adopting the scheme, when the hydrogen storage cylinder is filled, if the difference value between the temperature in the cylinder and the safety threshold value is larger, the opening degree of the cylinder valve is increased to accelerate the deflation speed, so that the filling speed is improved; if the difference between the temperature in the bottle and the safety threshold is small, the filling speed is slowed down by reducing the opening value of the bottle valve, namely, the temperature increasing speed is reduced, so that the temperature is kept below the safety threshold. The safety of the vehicle and the service life of the hydrogen storage cylinder and the cylinder valve are ensured.
For another example, in the case where it is determined in step S12 that the current state of the target hydrogen storage cylinder is a stationary state, and the safety threshold corresponding to the stationary state is a lower temperature limit value, step S13 may include:
and under the condition that the state is a static state and the rising rate of the temperature in the cylinder is greater than or equal to the upper limit value of the rate, adjusting the opening values of the cylinder valves of all the hydrogen storage cylinders so as to close the cylinder valves of all the hydrogen storage cylinders.
When the hydrogen storage cylinder is in a static state, the cylinder valve of the hydrogen storage cylinder is in a closed state, the safety threshold value is set to be the temperature rising speed in the state, at the moment, if the temperature rising speed of the hydrogen storage cylinder is higher than the safety threshold value, the fire disaster of the accessories of the hydrogen system is preliminarily judged, and the cylinder valves of all the hydrogen storage cylinders are closed immediately to prompt and alarm. By adopting the scheme, when the hydrogen system of the vehicle detects that a fire probably happens, all the other hydrogen storage cylinders are closed to avoid other hydrogen storage cylinders from firing, and an owner is reminded in time and an alarm is given to reduce the loss.
In the above examples, all of which are performed based on the in-cylinder temperature as the control basis, in practical implementation, the sensor provided in the hydrogen storage cylinder may further include a pressure sensor, and accordingly, the sensor data further includes an in-cylinder pressure, and the safety threshold may include a temperature safety threshold and a pressure safety threshold, in this case, the step S13 may further include:
and adjusting the opening value of the cylinder valve of the target hydrogen storage cylinder according to the magnitude relation between the temperature in the cylinder and the temperature safety threshold value and the magnitude relation between the pressure in the cylinder and the pressure safety threshold value.
As an example, in the case where the state is a charging state, the in-cylinder air pressure is less than the upper limit air pressure value, and the in-cylinder temperature is less than the upper limit temperature value, the opening value of the cylinder valve of the target hydrogen storage cylinder is adjusted based on the absolute value of the difference between the in-cylinder air pressure and the upper limit air pressure value, and the absolute value of the difference between the in-cylinder temperature and the upper limit temperature value, wherein the opening value may be obtained by weighted calculation of the two absolute values.
Fig. 2 is another flowchart of a hydrogen system safety control method for a fuel cell vehicle according to an embodiment of the present disclosure, where the current in-cylinder temperature of a Tx hydrogen storage cylinder in the diagram, Tmin is a lower limit value of the in-cylinder temperature, Tmax is an upper limit value of the in-cylinder temperature, Vx is a rising speed of the current in-cylinder temperature, and Vpre is a preset alarm rising speed.
Referring to steps S201, S202, S203, S204, S205, in the case where the state is the gas release state, if the internal temperature Tx is greater than the lower temperature limit Tmin, the opening value of the cylinder valve of the target hydrogen storage cylinder is adjusted according to the difference Tx-Tmin between the internal temperature and the lower temperature limit, wherein the opening value is positively correlated with the difference; if the temperature in the cylinder is less than or equal to the lower temperature limit value, adjusting the opening value of a cylinder valve of the target hydrogen storage cylinder to be closed, switching the state of the target hydrogen storage cylinder to be in a static state, executing steps S211, S212, S213 and S201, and if the temperature rising rate Vx in the cylinder is greater than the preset Vpre, closing all the target hydrogen storage cylinders, reporting to a vehicle controller and giving an alarm; and if the temperature rising rate Vx in the bottle is smaller than the preset Vpre, executing the step S201 again.
At the moment, the safety threshold value is set as the lower limit value of the temperature which does not damage the hydrogen storage cylinder and the cylinder valve, and when the hydrogen storage cylinder is deflated, if the difference value between the temperature in the cylinder and the safety threshold value is larger, the deflation speed is accelerated by increasing the opening value of the cylinder valve, so that the vehicle operation is ensured; if the difference between the temperature in the cylinder and the safety threshold is small, the rate of temperature reduction is reduced by reducing the opening of the cylinder valve to slow the rate of deflation so that the temperature remains above the threshold that does not damage the vehicle hardware. The safety of the vehicle and the service life of the hydrogen storage cylinder and the cylinder valve are ensured.
Referring to steps S201, S206, S207, S208, and S209, if the state is the charging state, if the temperature in the cylinder is less than the upper limit value of the temperature, adjusting an opening value of a cylinder valve of the target hydrogen storage cylinder according to a difference Tmax-Tx between the temperature in the cylinder and the lower limit value of the temperature, wherein the opening value is positively correlated with the difference; if the temperature in the cylinder is greater than or equal to the upper limit value of the temperature, adjusting the opening value of a cylinder valve of the target hydrogen storage cylinder to be closed, switching the state of the target hydrogen storage cylinder to be in a static state, executing steps S211, S212, S213 and S201, and if the temperature rising rate Vx in the cylinder is greater than the preset Vpre, closing all the target hydrogen storage cylinders, reporting to the whole vehicle controller and giving an alarm; and if the temperature rising rate Vx in the bottle is smaller than the preset Vpre, executing the step S201 again.
At this moment, because at the hydrogen storage cylinder filling in-process, along with the cylinder internal gas pressure rises, can lead to the temperature rise in the bottle, when the temperature rises to certain threshold value, can lead to certain harm and probably lead to the explosion or reveal hydrogen storage cylinder and bottle valve to hydrogen storage cylinder and bottle valve, set the safe upper limit value of temperature that does not harm hydrogen storage cylinder and bottle valve and guarantee this hydrogen system safety into with safe threshold value this moment. By adopting the scheme, when the hydrogen storage cylinder is filled, if the difference value between the temperature in the cylinder and the safety threshold value is larger, the opening degree of the cylinder valve is increased to accelerate the deflation speed, so that the filling speed is improved; if the difference between the temperature in the bottle and the safety threshold is small, the filling speed is slowed down by reducing the opening value of the bottle valve, namely, the temperature increasing speed is reduced, so that the temperature is kept below the safety threshold. The safety of the vehicle and the service life of the hydrogen storage cylinder and the cylinder valve are ensured.
Referring to steps S201, S210, S211, S212, and S213, in the case that the state of the target hydrogen storage cylinder is in a static state, if the temperature rising rate Vx in the cylinder is greater than the preset temperature rising rate Vpre, closing all the target hydrogen storage cylinders, reporting to the vehicle controller, and giving an alarm; and if the temperature rising rate Vx in the bottle is smaller than the preset Vpre, executing the step S201 again.
In some embodiments, if the rate Vx of temperature rise in the cylinder is smaller than the predetermined Vpre, it is determined that the target hydrogen storage cylinder is not in a fire hazard, and after step S201 is executed again, if the current temperature Tx in the cylinder is greater than Tmin and the vehicle is currently filling hydrogen gas, the cylinder valve of the target hydrogen storage cylinder is switched to the filling state, and the opening degree of the cylinder valve is adjusted to open the cylinder valve for filling hydrogen gas.
The disclosed embodiment also provides a control device 30, applied to a fuel cell vehicle, for performing the steps of the hydrogen system safety control method of the fuel cell vehicle provided by the above method embodiment, where the control device 30 may implement a hydrogen system controller of the fuel cell vehicle in a software, hardware or a combination of the two, the fuel cell vehicle includes a plurality of hydrogen storage cylinders, each of which is configured with a sensor and a cylinder valve, the sensor includes a temperature sensor, and the control device includes:
an obtaining module 31, configured to obtain current sensor data of a target hydrogen storage cylinder, where the sensor data includes an in-cylinder temperature, and the target hydrogen storage cylinder is any one of the multiple hydrogen storage cylinders;
and the determining module 32 is configured to determine a current state of the target hydrogen storage cylinder and a safety threshold corresponding to the state.
And the adjusting module 33 is configured to adjust an opening value of a cylinder valve of the target hydrogen storage cylinder according to a magnitude relationship between the sensor data and the safety threshold.
In some exemplary embodiments, the manner of determining the current state of the target hydrogen storage cylinder may be determined by the determination module 32 obtaining the current cylinder valve opening state and the hydrogen concentration variation condition of the target hydrogen storage cylinder, for example, in the case that the cylinder valve is closed, the target hydrogen storage cylinder is in a static state; under the condition that the cylinder valve is opened, the hydrogen concentration of the target hydrogen storage cylinder rises, and the target hydrogen storage cylinder is in a filling state; and under the condition that the cylinder valve is opened, the hydrogen concentration of the target hydrogen storage cylinder is reduced, and the target hydrogen storage cylinder is in a deflation state. In addition, the current state of the target hydrogen storage cylinder can also be determined according to the opening state of the cylinder valve and the temperature change condition of the target hydrogen storage cylinder, and the method for determining the current state of the target hydrogen storage cylinder is not limited in the embodiment of the disclosure.
By way of example, the determination module 32 may be specifically configured to: determining that the current state of the target hydrogen storage cylinder is a gas release state, wherein a safety threshold corresponding to the gas release state is a temperature lower limit value;
the adjusting module 33 adjusts the opening degree of the cylinder valve of the target hydrogen storage cylinder according to the magnitude relationship between the sensor data and the safety threshold, and includes:
adjusting the opening value of the cylinder valve of the target hydrogen storage cylinder according to the absolute value of the difference between the temperature in the cylinder and the lower temperature limit value when the temperature in the cylinder is greater than the lower temperature limit value, wherein the opening value is positively correlated with the absolute value;
and under the condition that the temperature in the cylinder is equal to the lower temperature limit value, adjusting the opening value of the cylinder valve of the target hydrogen storage cylinder to close the cylinder valve.
By way of example, the determination module 32 may be specifically configured to: determining that the current state of the target hydrogen storage cylinder is a filling state, wherein a safety threshold corresponding to the filling state is a temperature upper limit value;
the adjusting module 33 adjusts the opening degree of the cylinder valve of the target hydrogen storage cylinder according to the magnitude relationship between the sensor data and the safety threshold, specifically, when the temperature in the cylinder is less than the upper limit of the temperature, the opening degree of the cylinder valve of the target hydrogen storage cylinder is adjusted according to the absolute value of the difference between the temperature in the cylinder and the upper limit of the temperature, wherein the opening degree is positively correlated with the absolute value;
and under the condition that the temperature in the cylinder is equal to the upper limit value of the temperature, adjusting the opening value of the cylinder valve of the target hydrogen storage cylinder to close the cylinder valve.
By way of example, the determination module 32 may be specifically configured to: determining that the current state of the target hydrogen storage cylinder is a static state, wherein a safety threshold corresponding to the static state is a speed upper limit value;
the adjusting module 33 adjusts the opening value of the cylinder valve of the target hydrogen storage cylinder according to the magnitude relationship between the sensor data and the safety threshold, and includes:
and under the condition that the rising rate of the temperature in the cylinder is greater than or equal to the upper limit value of the rate, adjusting the opening values of the cylinder valves of all the hydrogen storage cylinders so as to close the cylinder valves of all the hydrogen storage cylinders.
For example, the adjusting module 33 may be further configured to: and sending a prompt message through the vehicle-mounted terminal under the condition that the temperature in the bottle is greater than or equal to the safety threshold.
In other embodiments, the hydrogen storage cylinder is further configured with a pressure sensor, i.e. the sensor data further comprises a cylinder internal pressure, the safety thresholds comprising a temperature safety threshold and a pressure safety threshold, optionally the regulating module 33 is specifically operable to: and adjusting the opening value of the cylinder valve of the target hydrogen storage cylinder according to the magnitude relation between the temperature in the cylinder and the temperature safety threshold value and the magnitude relation between the pressure in the cylinder and the pressure safety threshold value.
Adopt above-mentioned technical scheme, realized according to hydrogen storage cylinder self state, and the safe threshold value of setting for under the different states, carry out the independent control to each hydrogen storage cylinder, and, hydrogen storage cylinder's bottle valve utensil is equipped with the ability of adjusting the flow size through the size of adjusting the opening value, make the control to hydrogen storage cylinder except closing the bottle valve and opening the bottle valve, can also control the hydrogen gas flow size of hydrogen storage cylinder through the opening value of adjusting the bottle valve, for example, the flow size of gassing in-process and the flow size of filling in-process, and then can avoid because the potential safety hazard that the too big or undersize of flow leads to, precision and security have been improved.
With regard to the apparatus in the above-described embodiment, the specific manner in which each module performs the operation has been described in detail in the embodiment related to the method, and will not be elaborated here.
Fig. 4 is a block diagram illustrating an electronic device 40 according to an example embodiment. As shown in fig. 4, the electronic device 40 may include: a processor 41 and a memory 42. The electronic device 40 may also include one or more of a multimedia component 43, an input/output (I/O) interface 44, and a communication component 45.
The processor 41 is configured to control the overall operation of the electronic device 40, so as to complete all or part of the steps in the above-mentioned hydrogen system safety control method for a fuel cell vehicle. The memory 42 is used to store various types of data to support operation at the electronic device 40, such as instructions for any application or method operating on the electronic device 40 and application-related data, such as contact data, transmitted and received messages, pictures, audio, video, and so forth. The Memory 42 may be implemented by any type of volatile or non-volatile Memory device or combination thereof, such as Static Random Access Memory (SRAM), Electrically Erasable Programmable Read-Only Memory (EEPROM), Erasable Programmable Read-Only Memory (EPROM), Programmable Read-Only Memory (PROM), Read-Only Memory (ROM), magnetic Memory, flash Memory, magnetic disk or optical disk. The multimedia components 43 may include a screen and an audio component. Wherein the screen may be, for example, a touch screen and the audio component is used for outputting and/or inputting audio signals. For example, the audio component may include a microphone for receiving external audio signals. The received audio signal may further be stored in the memory 42 or transmitted via the communication component 45. The audio assembly also includes at least one speaker for outputting audio signals. The I/O interface 44 provides an interface between the processor 41 and other interface modules, such as a keyboard, mouse, buttons, etc. These buttons may be virtual buttons or physical buttons. The communication component 45 is used for wired or wireless communication between the electronic device 40 and other devices. Wireless Communication, such as Wi-Fi, bluetooth, Near Field Communication (NFC), 2G, 3G, 4G, NB-IOT, eMTC, or other 5G, etc., or a combination of one or more of them, which is not limited herein. The corresponding communication component 45 may thus comprise: Wi-Fi module, Bluetooth module, NFC module, etc.
In an exemplary embodiment, the electronic Device 40 may be implemented by one or more Application Specific Integrated Circuits (ASICs), Digital Signal Processors (DSPs), Digital Signal Processing Devices (DSPDs), Programmable Logic Devices (PLDs), Field Programmable Gate Arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electronic components, for performing the above-described hydrogen system safety control method for a fuel cell vehicle.
In another exemplary embodiment, there is also provided a computer-readable storage medium including program instructions which, when executed by a processor, implement the steps of the above-described hydrogen system safety control method for a fuel cell vehicle. For example, the computer readable storage medium may be the above-described memory 42 including program instructions executable by the processor 41 of the electronic device 40 to perform the above-described hydrogen system safety control method of the fuel cell vehicle.
The embodiment of the present disclosure further provides a vehicle 50, where the vehicle 50 includes a control device 30 (specifically, refer to the corresponding description above, and no further description is given here), and a plurality of hydrogen storage cylinders 53, each hydrogen storage cylinder is provided with a sensor 51 and a cylinder valve 52, the sensor 51 includes a temperature sensor, the sensor 51 and the cylinder valve 52 are electrically connected to the control device 30, and the control device 30 is configured to execute the method for safely controlling the hydrogen system of the fuel cell vehicle according to the embodiment of the present disclosure.
Those skilled in the art will appreciate that, in practice, vehicle 50 may include other components, and fig. 5 shows only those portions relevant to the disclosed embodiments, and other necessary vehicle components are not shown.
The preferred embodiments of the present disclosure are described in detail with reference to the accompanying drawings, however, the present disclosure is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solution of the present disclosure within the technical idea of the present disclosure, and these simple modifications all belong to the protection scope of the present disclosure.
It should be noted that, in the foregoing embodiments, various features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various combinations that are possible in the present disclosure are not described again.
In addition, any combination of various embodiments of the present disclosure may be made, and the same should be considered as the disclosure of the present disclosure, as long as it does not depart from the spirit of the present disclosure.

Claims (10)

1. A hydrogen system safety control method of a fuel cell vehicle, characterized in that the fuel cell vehicle includes a plurality of hydrogen storage cylinders, wherein each of the hydrogen storage cylinders is provided with a sensor including a temperature sensor and a cylinder valve, the method comprising:
acquiring current sensor data of a target hydrogen storage cylinder, wherein the sensor data comprises the temperature in the cylinder, and the target hydrogen storage cylinder is any one of the plurality of hydrogen storage cylinders;
determining the current state of the target hydrogen storage cylinder and a safety threshold corresponding to the state;
and adjusting the opening value of the cylinder valve of the target hydrogen storage cylinder according to the size relation between the sensor data and the safety threshold value.
2. The method of claim 1, wherein the condition is a deflation condition, and the deflation condition corresponds to a safety threshold value of a lower temperature limit value;
the adjusting the opening value of the cylinder valve of the target hydrogen storage cylinder according to the magnitude relation between the sensor data and the safety threshold value comprises the following steps:
adjusting an opening value of a cylinder valve of the target hydrogen storage cylinder according to an absolute value of a difference between the in-cylinder temperature and the lower temperature limit value in the case where the in-cylinder temperature is greater than the lower temperature limit value, wherein the opening value is positively correlated with the absolute value;
and under the condition that the temperature in the cylinder is equal to the lower temperature limit value, adjusting the opening value of the cylinder valve of the target hydrogen storage cylinder to close the cylinder valve.
3. The method according to claim 1, wherein the state is a filling state, and the safety threshold corresponding to the filling state is an upper temperature limit value;
the adjusting the opening value of the cylinder valve of the target hydrogen storage cylinder according to the magnitude relation between the sensor data and the safety threshold value comprises the following steps:
adjusting an opening value of a cylinder valve of the target hydrogen storage cylinder according to an absolute value of a difference between the in-cylinder temperature and the upper temperature limit value in the case where the in-cylinder temperature is less than the upper temperature limit value, wherein the opening value is positively correlated with the absolute value;
and under the condition that the temperature in the cylinder is equal to the upper limit value of the temperature, adjusting the opening value of a cylinder valve of the target hydrogen storage cylinder to close the cylinder valve.
4. The method according to claim 1, wherein the state is a static state, and the safety threshold corresponding to the static state is a speed upper limit value;
the adjusting the opening value of the cylinder valve of the target hydrogen storage cylinder according to the magnitude relation between the sensor data and the safety threshold value comprises the following steps:
and under the condition that the rising rate of the temperature in the cylinder is greater than or equal to the upper limit value of the rate, adjusting the opening values of the cylinder valves of all the hydrogen storage cylinders so as to close the cylinder valves of all the hydrogen storage cylinders.
5. The method according to any one of claims 1-4, further comprising:
and sending a prompt message through the vehicle-mounted terminal under the condition that the temperature in the bottle or the temperature rising rate is greater than or equal to the safety threshold.
6. The method of any of claims 1-4, wherein the sensor further comprises a pressure sensor, the sensor data further comprises in-bottle pressure, the safety thresholds comprise a temperature safety threshold and a pressure safety threshold, the method further comprising:
and adjusting the opening value of the cylinder valve of the target hydrogen storage cylinder according to the magnitude relation between the temperature in the cylinder and the temperature safety threshold value and the magnitude relation between the pressure in the cylinder and the pressure safety threshold value.
7. A control device applied to a fuel cell vehicle including a plurality of hydrogen storage cylinders, wherein each of the hydrogen storage cylinders is provided with a sensor including a temperature sensor and a cylinder valve, the control device comprising:
the acquisition module is used for acquiring current sensor data of a target hydrogen storage cylinder, wherein the sensor data comprises the temperature in the cylinder, and the target hydrogen storage cylinder is any one of the hydrogen storage cylinders;
the determining module is used for determining the current state of the target hydrogen storage cylinder and a safety threshold corresponding to the state;
and the adjusting module is used for adjusting the opening value of the cylinder valve of the target hydrogen storage cylinder according to the magnitude relation between the sensor data and the safety threshold value.
8. The apparatus according to claim 7, wherein the status is a static status, the safety threshold corresponding to the static status is a speed upper limit value, and the adjusting module is specifically configured to:
and under the condition that the rising rate of the temperature in the cylinder is greater than or equal to the upper limit value of the rate, adjusting the opening values of the cylinder valves of all the hydrogen storage cylinders so as to close the cylinder valves of all the hydrogen storage cylinders.
9. An electronic device, comprising:
one or more processors;
a storage device having one or more programs stored thereon;
when executed by the one or more processors, cause the one or more processors to implement the method of any one of claims 1-6.
10. A fuel cell vehicle, characterized in that the fuel cell vehicle comprises a plurality of hydrogen storage cylinders, wherein each of the hydrogen storage cylinders is provided with a sensor and a cylinder valve, and a control device connected to the sensor and the cylinder valve, the sensor comprising a temperature sensor;
the control device is adapted to perform the method of any of claims 1-6.
CN202010839701.XA 2020-08-19 2020-08-19 Hydrogen system safety control method and device for fuel cell vehicle, electronic device, and vehicle Withdrawn CN114074545A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115111528A (en) * 2022-06-24 2022-09-27 重庆长安新能源汽车科技有限公司 Control system and method of fuel cell vehicle hydrogen storage system and vehicle
CN117053086A (en) * 2023-08-10 2023-11-14 广州汽车集团股份有限公司 Gas cylinder group system, gas quality measuring method and vehicle

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115111528A (en) * 2022-06-24 2022-09-27 重庆长安新能源汽车科技有限公司 Control system and method of fuel cell vehicle hydrogen storage system and vehicle
CN117053086A (en) * 2023-08-10 2023-11-14 广州汽车集团股份有限公司 Gas cylinder group system, gas quality measuring method and vehicle

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