CN114361523B - Fuel cell air system of fuel cell automobile, control method thereof and automobile - Google Patents
Fuel cell air system of fuel cell automobile, control method thereof and automobile Download PDFInfo
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- CN114361523B CN114361523B CN202111668548.XA CN202111668548A CN114361523B CN 114361523 B CN114361523 B CN 114361523B CN 202111668548 A CN202111668548 A CN 202111668548A CN 114361523 B CN114361523 B CN 114361523B
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Abstract
The invention discloses a fuel cell air system of a fuel cell automobile, a control method thereof and a vehicle, and the method comprises the following steps: starting the fuel cell system; calculating an initial value of air pile-entering flow, an initial value of air pile-entering pressure and an altitude temperature compensation coefficient; calculating final target air pile-entering flow and final target air pile-entering pressure according to the initial air pile-entering flow value, the initial pile-entering pressure value and the altitude temperature compensation coefficient; calculating to obtain a first air compressor rotating speed request correction value and a first throttle opening degree request correction value; calculating to obtain a second air compressor rotating speed request correction value and a second throttle opening degree request correction value; and finally, calculating the rotating speed control quantity and the throttle opening control quantity of the air compressor. The control method of the invention enables the fuel cell system to adapt to various environments and various working conditions, and has good real-time performance, higher accuracy and more stable operation of the electric pile.
Description
Technical Field
The invention relates to the technical field of fuel cell automobile control, in particular to a fuel cell air system of a fuel cell automobile, a control method of the fuel cell air system and a vehicle.
Background
The development of new energy automobiles is receiving more and more attention by virtue of energy conservation and environmental protection. Fuel cell vehicles offer many advantages over conventional electric and hybrid vehicles. The fuel cell stack has the advantages of high power generation efficiency, low operation noise, rich fuel sources, quick fuel filling, no pollution and the like. The fuel cell automobile taking the hydrogen fuel cell as a power source can realize real zero emission in the running process, and the excellent NVH characteristic of the fuel cell stack in the running process also improves the driving comfort of the automobile.
The fuel cell air system provides sufficient oxidant for electrochemical reaction, and is a precondition and guarantee for normal operation of the fuel cell. However, the air system has certain time lag, so as to avoid 'oxygen starvation' caused by insufficient oxygen supply, further to cause limited output of the electric pile, flooding the electric pile and even affecting the service life of the electric pile. Or the parasitic power of accessories such as an air compressor is increased due to excessive oxygen supply, and the actual output power of the electric pile is reduced. Therefore, the fuel cell air system needs to quickly adapt to working conditions and environmental requirements, even can predict working conditions for a period of time in the future, and accurately provides a proper amount of air.
Disclosure of Invention
The invention aims to provide a fuel cell air system of a fuel cell automobile, a control method thereof and a vehicle, so that the fuel cell system can adapt to various environments and various working condition changes, the air inlet flow and the air inlet pressure are regulated in a better real-time manner, the accuracy is higher, the operation of a galvanic pile is more stable, and the service life of the galvanic pile is prolonged.
In order to achieve the above object, the present invention provides a control method for an air system of a fuel cell vehicle, comprising the steps of:
starting the fuel cell system;
acquiring the driver demand power, and calculating an initial value of air pile-in flow and an initial value of pile-in pressure according to the driver demand power offset;
acquiring the ambient air pressure and the temperature, and calculating to obtain an altitude temperature compensation coefficient according to the ambient air pressure and the temperature;
calculating the final target air pile-up flow according to the initial value of the air pile-up flow and the altitude temperature compensation coefficient;
calculating the final target air pile-in pressure according to the initial air pile-in pressure value and the altitude temperature compensation coefficient;
acquiring actual air pile inlet flow and actual pile inlet pressure, and calculating to obtain a first air compressor rotating speed request correction value according to a first flow difference value and a first pressure difference value; calculating a first throttle opening request correction value according to the first flow difference value and the first pressure difference value; wherein, the first flow difference = final target air-to-stack flow-actual air-to-stack flow; first pressure difference = final target air-to-stack pressure-actual to-stack pressure;
acquiring the actual air compressor rotating speed and the actual throttle opening, and calculating according to the air compressor target rotating speed and the throttle target opening to obtain the theoretical air pile-up flow; calculating according to the target rotating speed of the air compressor and the target opening of the throttle valve to obtain the theoretical air pile-in pressure; wherein, the target rotation speed of the air compressor = actual rotation speed of the air compressor + first rotation speed request correction value of the air compressor; throttle target opening = actual throttle opening + first throttle opening request correction;
calculating to obtain a second air compressor rotating speed request correction value according to the second flow difference value and the second pressure difference value; calculating a second throttle opening request correction value according to the second flow difference value and the second pressure difference value; wherein, the second flow difference = final target air-to-stack flow-theoretical air-to-stack flow, the second pressure difference = final target air-to-stack pressure-theoretical air-to-stack pressure;
calculating the rotating speed control quantity C of the air compressor Air compressor And throttle opening control amount C Throttle valve The formula is:
C throttle valve =min (100%, max (0%, throttle final opening request));
C air compressor =min (upper limit of allowable rotation speed of air compressor, max (0 rpm, final rotation speed request of air compressor));
throttle final opening request = actual throttle opening + first throttle opening request correction + second throttle opening request correction;
air compressor final speed request = actual air compressor speed + The first air compressor rotation speed request correction value+the second air compressor rotation speed request correction value.
Further, the calculation formulas of the final target air pile-up flow and the final target air pile-up pressure are as follows:
final target air-in-stack flow = air-in-stack flow initial value quite />An altitude temperature compensation coefficient;
final target air-in-stack pressure = air-in-stack pressure initial value quite />An altitude temperature compensation coefficient.
Further, the method specifically comprises the following steps of:
and respectively inquiring a relation table of the driver required power offset and the initial value of the air pile inlet flow and a relation table of the driver required power offset and the initial value of the air pile inlet pressure according to the driver required power offset to obtain the initial value of the air pile inlet flow and the initial value of the pile inlet pressure.
Further, calculating a first air compressor rotating speed request correction value according to the first flow difference value and the first pressure difference value, and calculating a first throttle opening request correction value according to the first flow difference value and the first pressure difference value; the method specifically comprises the following steps:
and respectively inquiring a first flow difference value-first pressure difference value-first air compressor rotating speed request correction value relation table and a first flow difference value-first pressure difference value-first throttle opening degree request correction value relation table according to the first flow difference value and the first pressure difference value to obtain a first air compressor rotating speed request correction value and a first throttle opening degree request correction value.
Further, calculating according to the target rotating speed of the air compressor and the target opening of the throttle valve to obtain theoretical air stack inlet flow, and calculating according to the target rotating speed of the air compressor and the target opening of the throttle valve to obtain theoretical air stack inlet pressure; the method specifically comprises the following steps:
and respectively inquiring an air compressor target rotating speed-throttle target opening-theoretical air stack inlet flow relation table and an air compressor target rotating speed-throttle target opening-theoretical air stack inlet pressure relation table according to the air compressor target rotating speed and the throttle target opening to obtain theoretical air stack inlet flow and theoretical air stack inlet pressure.
Further, calculating to obtain a second air compressor rotating speed request correction value according to the second flow difference value and the second pressure difference value; calculating a second throttle opening request correction value according to the second flow difference value and the second pressure difference value; the method specifically comprises the following steps:
and respectively inquiring a second flow difference value-second pressure difference value-second air compressor rotating speed request correction value relation table and a second flow difference value-second pressure difference value-second throttle opening request correction value relation table according to the second flow difference value and the second pressure difference value to obtain a second air compressor rotating speed request correction value and a second throttle opening request correction value.
Further, calculating according to the ambient air pressure and the temperature to obtain an altitude temperature compensation coefficient; the method specifically comprises the following steps: and inquiring an environmental air pressure-environmental temperature-elevation temperature compensation coefficient relation table according to the environmental air pressure and the temperature to obtain an elevation temperature compensation coefficient.
The invention also provides a fuel cell air system of the fuel cell automobile, which comprises an ambient temperature sensor, an air filter, an air compressor, a humidifying atomizer, an air stack inlet flow sensor, an ambient air pressure sensor, an intercooler, an air stack inlet pressure sensor, a fuel cell electric stack, an electronic throttle valve and a fuel cell system controller for acquiring the power required by a driver, the ambient air pressure, the ambient temperature, the actual air stack inlet flow, the actual stack inlet pressure, the actual air compressor rotating speed, the actual throttle valve opening and logic calculation;
the air filter, the air compressor, the humidifying atomizer, the intercooler and the inlet end of the fuel cell stack are sequentially connected, and the electronic throttle valve and the outlet end of the fuel cell stack are sequentially connected; the air pile inlet pressure sensor is arranged at the inlet end of the fuel cell pile, the air pile inlet flow sensor is arranged on a pipeline between the air filter and the air compressor, and the ambient temperature sensor, the air compressor, the humidifying atomizer, the air pile inlet flow sensor, the ambient air pressure sensor, the air pile inlet pressure sensor, the electronic throttle valve and the fuel cell pile are respectively connected with the fuel cell system controller; the fuel cell vehicle fuel cell air system is configured to perform the steps of the fuel cell vehicle fuel cell air system control method.
Further, the ambient temperature sensor is connected with the fuel cell system controller through the whole vehicle controller.
The invention also provides a vehicle comprising the fuel cell air system of the fuel cell automobile.
Compared with the prior art, the invention has the following advantages:
according to the fuel cell air system of the fuel cell automobile, the control method and the vehicle thereof, the air flow and the air pressure entering the electric pile are controlled through the ambient air pressure, the ambient temperature, the air inlet pile flow, the air inlet pile pressure and the accelerator pedal, so that the fuel cell system can adapt to the changes of various environments and various working conditions, the air inlet flow and the air inlet pressure are regulated in a better real-time manner, a proper amount of air is accurately provided by adopting multiple corrections, the operation of the electric pile is more stable, and the service life of the electric pile is prolonged while the stable output of the electric pile is ensured; the parameters are queried by querying a relational table calibrated in advance, so that the air inlet flow and the air inlet pressure can be adjusted in advance, the air inlet flow and the air inlet pressure are adjusted in good real-time, and the operation of the electric pile is more stable.
Drawings
FIG. 1 is a flow chart of a fuel cell air system control method for a fuel cell vehicle of the present invention;
fig. 2 is a schematic diagram of the structure of the fuel cell air system of the fuel cell vehicle of the present invention.
In the figure:
the system comprises a 1-fuel cell system controller, a 2-accelerator pedal opening sensor, a 3-ambient temperature sensor, a 4-air filter, a 5-air compressor, a 6-humidification atomizer, a 7-air stack inlet flow sensor, an 8-ambient air pressure sensor, a 9-intercooler, a 10-air stack inlet pressure sensor, an 11-fuel cell stack, a 12-electronic throttle valve and a 13-whole vehicle controller.
Detailed Description
The following describes the embodiments of the present invention further with reference to the drawings.
Referring to fig. 1, the embodiment discloses a control method for an air system of a fuel cell automobile, which comprises the following steps:
starting the fuel cell system; the whole vehicle controller calculates a fuel cell system working request and a power generation request according to a driver accelerator pedal signal, and after a fuel cell stack is normally started after receiving a starting command, calculates air stack inlet pressure and flow requests according to the power generation request sent by the whole vehicle controller; and then the actual air pile-entering flow and the actual air pile-entering pressure are adjusted by adjusting the rotating speed of the air compressor and the opening of the electronic throttle valve.
Acquiring the driver demand power, and calculating an initial value of air pile-in flow and an initial value of pile-in pressure according to the driver demand power offset; the driver demand power offset is obtained from the whole vehicle controller, and is calculated by the whole vehicle controller according to the collected opening degree of the accelerator pedal; specifically, the relation table of the accelerator pedal opening degree and the driver required power offset is queried according to the collected accelerator pedal opening degree, and the driver required power offset is obtained.
Acquiring the ambient air pressure and the temperature, and calculating to obtain an altitude temperature compensation coefficient according to the ambient air pressure and the temperature; and the altitude temperature compensation coefficient is introduced to correct the air pile inlet flow and the air pile inlet pressure, so that the adaptability of the fuel cell automobile to different altitude temperatures is improved.
Calculating the final target air pile-up flow according to the initial value of the air pile-up flow and the altitude temperature compensation coefficient;
calculating the final target air pile-in pressure according to the initial air pile-in pressure value and the altitude temperature compensation coefficient;
acquiring actual air pile inlet flow and actual pile inlet pressure, and calculating to obtain a first air compressor rotating speed request correction value according to a first flow difference value and a first pressure difference value; calculating a first throttle opening request correction value according to the first flow difference value and the first pressure difference value; wherein, the first flow difference = final target air-to-stack flow-actual air-to-stack flow; first pressure difference = final target air-to-stack pressure-actual to-stack pressure;
acquiring the actual air compressor rotating speed and the actual throttle opening, and calculating according to the air compressor target rotating speed and the throttle target opening to obtain the theoretical air pile-up flow; calculating according to the target rotating speed of the air compressor and the target opening of the throttle valve to obtain the theoretical air pile-in pressure; wherein, the target rotation speed of the air compressor = actual rotation speed of the air compressor + first rotation speed request correction value of the air compressor; throttle target opening = actual throttle opening + first throttle opening request correction;
calculating to obtain a second air compressor rotating speed request correction value according to the second flow difference value and the second pressure difference value; calculating a second throttle opening request correction value according to the second flow difference value and the second pressure difference value; wherein, the second flow difference = final target air-to-stack flow-theoretical air-to-stack flow, the second pressure difference = final target air-to-stack pressure-theoretical air-to-stack pressure;
calculating the rotating speed control quantity C of the air compressor Air compressor And throttle opening control amount C Throttle valve The formula is:
C throttle valve =min (100%, max (0%, throttle final opening request));
C air compressor =min (upper limit of allowable rotation speed of air compressor, max (0 rpm, final rotation speed request of air compressor));
throttle final opening request = actual throttle opening + first throttle opening request correction + second throttle opening request correction;
air compressor final speed request = actual air compressor speed + First air compressor rotating speed request correction value+second air compressor rotating speed request repairPositive values.
In this embodiment, the calculation formula of the final target air pile-entering flow rate and the final target air pile-entering pressure is:
final target air-in-stack flow = air-in-stack flow initial value quite />An altitude temperature compensation coefficient;
final target air-in-stack pressure = air-in-stack pressure initial value quite />An altitude temperature compensation coefficient.
In this embodiment, the method specifically includes the following steps:
and respectively inquiring a relation table of the driver required power offset and the initial value of the air pile inlet flow and a relation table of the driver required power offset and the initial value of the air pile inlet pressure according to the driver required power offset to obtain the initial value of the air pile inlet flow and the initial value of the pile inlet pressure.
In this embodiment, the first air compressor rotation speed request correction value is calculated according to the first flow difference value and the first pressure difference value, and the first throttle opening request correction value is calculated according to the first flow difference value and the first pressure difference value; the method specifically comprises the following steps:
and respectively inquiring a first flow difference value-first pressure difference value-first air compressor rotating speed request correction value relation table and a first flow difference value-first pressure difference value-first throttle opening degree request correction value relation table according to the first flow difference value and the first pressure difference value to obtain a first air compressor rotating speed request correction value and a first throttle opening degree request correction value.
In this embodiment, the theoretical air pile inlet flow is calculated according to the target rotation speed of the air compressor and the target opening of the throttle valve, and the theoretical air pile inlet pressure is calculated according to the target rotation speed of the air compressor and the target opening of the throttle valve; the method specifically comprises the following steps:
and respectively inquiring an air compressor target rotating speed-throttle target opening-theoretical air stack inlet flow relation table and an air compressor target rotating speed-throttle target opening-theoretical air stack inlet pressure relation table according to the air compressor target rotating speed and the throttle target opening to obtain theoretical air stack inlet flow and theoretical air stack inlet pressure.
In this embodiment, the second air compressor rotation speed request correction value is obtained by calculating according to the second flow difference value and the second pressure difference value; calculating a second throttle opening request correction value according to the second flow difference value and the second pressure difference value; the method specifically comprises the following steps:
and respectively inquiring a second flow difference value-second pressure difference value-second air compressor rotating speed request correction value relation table and a second flow difference value-second pressure difference value-second throttle opening request correction value relation table according to the second flow difference value and the second pressure difference value to obtain a second air compressor rotating speed request correction value and a second throttle opening request correction value.
In the embodiment, an altitude temperature compensation coefficient is calculated according to the ambient air pressure and the temperature; the method specifically comprises the following steps: and inquiring an environmental air pressure-environmental temperature-elevation temperature compensation coefficient relation table according to the environmental air pressure and the temperature to obtain an elevation temperature compensation coefficient.
Referring to fig. 2, the present embodiment also discloses a fuel cell air system of a fuel cell automobile, which includes an ambient temperature sensor 3, an air cleaner 4, an air compressor 5, a humidification atomizer 6, an air inlet stack flow sensor 7, an ambient air pressure sensor 8, an intercooler 9, an air inlet stack pressure sensor 10, a fuel cell stack 11, an electronic throttle valve 12, and a fuel cell system controller 1 for obtaining driver demand power, ambient air pressure, ambient temperature, actual air inlet stack flow, actual inlet stack pressure, actual air compressor rotational speed, actual throttle opening, and performing logic calculation;
the air filter 4, the air compressor 5, the humidifying atomizer 6, the intercooler 9 and the inlet end of the fuel cell stack 11 are sequentially connected, and the electronic throttle valve 12 and the outlet end of the fuel cell stack 11 are sequentially connected; the air pile inlet pressure sensor 10 is arranged at the inlet end of the fuel cell pile 13, the air pile inlet flow sensor 7 is arranged on a pipeline between the air filter 4 and the air compressor 5, and the environment temperature sensor 3, the air compressor 5, the humidifying atomizer 6, the air pile inlet flow sensor 7, the environment air pressure sensor 8, the air pile inlet pressure sensor 10, the electronic throttle valve 12 and the fuel cell pile 11 are respectively connected with the fuel cell system controller 1; the fuel cell vehicle fuel cell air system is configured to perform the steps of the fuel cell vehicle fuel cell air system control method described above.
Further, the ambient temperature sensor 3 is connected to the fuel cell system controller 1 through the whole vehicle controller 13.
The whole vehicle controller 13: converting the ambient temperature sensor signal to an ambient temperature; converting the signal of the accelerator pedal opening sensor into the accelerator pedal opening; the accelerator pedal opening is converted to a fuel cell system power request.
The fuel cell system controller 1: converting the ambient air pressure sensor signal to ambient air pressure; converting the air pile-up flow sensor signal into air pile-up flow; converting the air pile-in pressure sensor signal into air pile-in pressure; and calculating the actual air inlet flow and the actual air inlet pressure of the air system of the fuel cell according to the power request of the whole vehicle controller, the ambient temperature, the ambient air pressure, the air stack inlet flow and the air stack inlet pressure.
Ambient temperature sensor 3: converting the ambient temperature into an electrical signal.
Ambient air pressure sensor 8: the ambient air pressure is converted into an electrical signal.
Accelerator pedal opening sensor 2: the opening degree of the accelerator pedal is converted into an electric signal.
An air-in-stack flow sensor 7 and an air-in-stack pressure sensor 10: the air in-pile flow and air in-pile pressure are converted into electric signals.
Air cleaner 4: filtering impurities and dust in the air, etc.
Air compressor 5: providing high pressure air to the stack.
Humidification atomizer 6: humidifying and cooling the high-pressure air.
Fuel cell stack 11: and (5) performing electrochemical reaction and outputting electric energy.
An electronic throttle valve 12: by controlling the opening degree thereof, the air intake pressure is adjusted.
The embodiment also discloses a vehicle comprising the fuel cell air system of the fuel cell automobile.
According to the fuel cell air system of the fuel cell automobile, the control method and the vehicle thereof, the air flow and the air pressure entering the electric pile are controlled through the ambient air pressure, the ambient temperature, the air inlet pile flow, the air inlet pile pressure and the accelerator pedal, so that the fuel cell system can adapt to the changes of various environments and various working conditions, the air inlet flow and the air inlet pressure are regulated in a better real-time manner, a proper amount of air is accurately provided by adopting multiple corrections, the operation of the electric pile is more stable, and the service life of the electric pile is prolonged while the stable output of the electric pile is ensured; the parameters are queried by querying a relational table calibrated in advance, so that the air inlet flow and the air inlet pressure can be adjusted in advance, the air inlet flow and the air inlet pressure are adjusted in good real-time, and the operation of the electric pile is more stable.
The foregoing describes in detail preferred embodiments of the present invention. It should be understood that numerous modifications and variations can be made in accordance with the concepts of the invention by one of ordinary skill in the art without undue burden. Therefore, all technical solutions which can be obtained by logic analysis, reasoning or limited experiments based on the prior art by the person skilled in the art according to the inventive concept shall be within the scope of protection defined by the claims.
Claims (10)
1. A method for controlling an air system of a fuel cell vehicle, comprising the steps of:
starting the fuel cell system;
acquiring the driver demand power, and calculating an initial value of air pile-in flow and an initial value of pile-in pressure according to the driver demand power offset; the driver demand power offset is obtained by inquiring an accelerator pedal opening-driver demand power offset relation table according to the acquired accelerator pedal opening;
acquiring the ambient air pressure and the temperature, and calculating to obtain an altitude temperature compensation coefficient according to the ambient air pressure and the temperature;
calculating the final target air pile-up flow according to the initial value of the air pile-up flow and the altitude temperature compensation coefficient;
calculating the final target air pile-in pressure according to the initial air pile-in pressure value and the altitude temperature compensation coefficient;
acquiring actual air pile inlet flow and actual pile inlet pressure, and calculating to obtain a first air compressor rotating speed request correction value according to a first flow difference value and a first pressure difference value; calculating a first throttle opening request correction value according to the first flow difference value and the first pressure difference value; wherein, the first flow difference = final target air-to-stack flow-actual air-to-stack flow; first pressure difference = final target air-to-stack pressure-actual to-stack pressure;
acquiring the actual air compressor rotating speed and the actual throttle opening, and calculating according to the air compressor target rotating speed and the throttle target opening to obtain the theoretical air pile-up flow; calculating according to the target rotating speed of the air compressor and the target opening of the throttle valve to obtain the theoretical air pile-in pressure; wherein, the target rotation speed of the air compressor = actual rotation speed of the air compressor + first rotation speed request correction value of the air compressor; throttle target opening = actual throttle opening + first throttle opening request correction;
calculating to obtain a second air compressor rotating speed request correction value according to the second flow difference value and the second pressure difference value; calculating a second throttle opening request correction value according to the second flow difference value and the second pressure difference value; wherein, the second flow difference = final target air-to-stack flow-theoretical air-to-stack flow, the second pressure difference = final target air-to-stack pressure-theoretical air-to-stack pressure;
calculating the rotating speed control quantity C of the air compressor Air compressor And throttle opening control amount C Gas savingDoor The formula is:
C throttle valve =min (100%, max (0%, throttle final opening request));
C air compressor =min (upper limit of allowable rotation speed of air compressor, max (0 rpm, final rotation speed request of air compressor));
throttle final opening request = actual throttle opening + first throttle opening request correction + second throttle opening request correction;
air compressor final speed request = actual air compressor speed + The first air compressor rotation speed request correction value+the second air compressor rotation speed request correction value.
2. The fuel cell air system control method of a fuel cell vehicle according to claim 1, wherein the calculation formulas of the final target air in-stack flow rate and the final target air in-stack pressure are:
final target air-in-stack flow = air-in-stack flow initial valueAn altitude temperature compensation coefficient;
final target air-in-stack pressure = air-in-stack pressure initial valueAn altitude temperature compensation coefficient.
3. The fuel cell air system control method of a fuel cell vehicle according to claim 1 or 2, wherein the initial value of the air in-stack flow rate and the initial value of the in-stack pressure are calculated based on the driver-required power offset amount, specifically performing the steps of:
and respectively inquiring a relation table of the driver required power offset and the initial value of the air pile inlet flow and a relation table of the driver required power offset and the initial value of the air pile inlet pressure according to the driver required power offset to obtain the initial value of the air pile inlet flow and the initial value of the pile inlet pressure.
4. The method for controlling an air system of a fuel cell vehicle according to claim 3, wherein the first air compressor rotation speed request correction value is calculated according to a first flow difference value and a first pressure difference value, and the first throttle opening request correction value is calculated according to the first flow difference value and the first pressure difference value; the method specifically comprises the following steps:
and respectively inquiring a first flow difference value-first pressure difference value-first air compressor rotating speed request correction value relation table and a first flow difference value-first pressure difference value-first throttle opening degree request correction value relation table according to the first flow difference value and the first pressure difference value to obtain a first air compressor rotating speed request correction value and a first throttle opening degree request correction value.
5. The control method of the fuel cell air system of the fuel cell automobile according to claim 1, 2 or 4, wherein the theoretical air pile-up flow is calculated according to the target rotation speed of the air compressor and the target opening of the throttle valve, and the theoretical air pile-up pressure is calculated according to the target rotation speed of the air compressor and the target opening of the throttle valve; the method specifically comprises the following steps:
and respectively inquiring an air compressor target rotating speed-throttle target opening-theoretical air stack inlet flow relation table and an air compressor target rotating speed-throttle target opening-theoretical air stack inlet pressure relation table according to the air compressor target rotating speed and the throttle target opening to obtain theoretical air stack inlet flow and theoretical air stack inlet pressure.
6. The method according to claim 5, wherein the second air compressor rotational speed request correction value is calculated according to a second flow difference value and a second pressure difference value; calculating a second throttle opening request correction value according to the second flow difference value and the second pressure difference value; the method specifically comprises the following steps:
and respectively inquiring a second flow difference value-second pressure difference value-second air compressor rotating speed request correction value relation table and a second flow difference value-second pressure difference value-second throttle opening request correction value relation table according to the second flow difference value and the second pressure difference value to obtain a second air compressor rotating speed request correction value and a second throttle opening request correction value.
7. The control method of the air system of the fuel cell vehicle fuel cell according to claim 1 or 2 or 4 or 6, wherein the altitude temperature compensation coefficient is calculated based on the ambient air pressure and the temperature; the method specifically comprises the following steps: and inquiring an environmental air pressure-environmental temperature-elevation temperature compensation coefficient relation table according to the environmental air pressure and the temperature to obtain an elevation temperature compensation coefficient.
8. The fuel cell air system of the fuel cell automobile is characterized by comprising an ambient temperature sensor (3), an air filter (4), an air compressor (5), a humidifying atomizer (6), an air stack inlet flow sensor (7), an ambient air pressure sensor (8), an intercooler (9), an air stack inlet pressure sensor (10), a fuel cell electric stack (11), an electronic throttle valve (12) and a fuel cell system controller (1) for acquiring driver demand power, ambient air pressure, ambient temperature, actual air stack inlet flow, actual stack inlet pressure, actual air compressor rotating speed, actual throttle opening and logic calculation;
the air filter (4), the air compressor (5), the humidifying atomizer (6), the intercooler (9) and the inlet end of the fuel cell stack (11) are sequentially connected, and the electronic throttle valve (12) and the outlet end of the fuel cell stack (11) are sequentially connected; the air pile inlet pressure sensor (10) is arranged at the inlet end of the fuel cell pile (13), the air pile inlet flow sensor (7) is arranged on a pipeline between the air filter (4) and the air compressor (5), and the environment temperature sensor (3), the air compressor (5), the humidifying atomizer (6), the air pile inlet flow sensor (7), the environment air pressure sensor (8), the air pile inlet pressure sensor (10), the electronic throttle valve (12) and the fuel cell pile (11) are respectively connected with the fuel cell system controller (1); the fuel cell vehicle fuel cell air system is configured to perform the steps of the fuel cell vehicle fuel cell air system control method according to any one of claims 1 to 7.
9. The fuel cell air system of a fuel cell vehicle according to claim 8, characterized in that the ambient temperature sensor (3) is connected to the fuel cell system controller (1) via a vehicle control unit (13).
10. A vehicle comprising a fuel cell automotive fuel cell air system according to claim 8 or 9.
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| CN114914494B (en) * | 2022-06-27 | 2023-11-10 | 北京亿华通科技股份有限公司 | Durability control method and device for fuel cell stack |
| CN115458780B (en) * | 2022-10-25 | 2024-07-12 | 新源动力股份有限公司 | Method for comprehensively controlling air pressure and air flow of fuel cell air supply system |
| CN115566235B (en) * | 2022-11-08 | 2024-01-26 | 海卓动力(北京)能源科技有限公司 | Anti-surge control method, system, equipment and medium for fuel cell air compressor |
| CN115799570B (en) * | 2023-01-09 | 2023-04-14 | 北京亿华通科技股份有限公司 | High altitude adaptive fuel cell air intake system |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002260696A (en) * | 2000-12-27 | 2002-09-13 | Nissan Motor Co Ltd | Control device of fuel cell system |
| JP2004047371A (en) * | 2002-07-15 | 2004-02-12 | Fuji Electric Holdings Co Ltd | Solid polymer type fuel cell |
| JP2004355890A (en) * | 2003-05-28 | 2004-12-16 | Nissan Motor Co Ltd | Control device for fuel cell |
| CN208157535U (en) * | 2018-01-17 | 2018-11-27 | 安徽明天氢能科技股份有限公司 | A kind of air supply system of fuel cell system |
| CN109546181A (en) * | 2018-11-29 | 2019-03-29 | 安徽江淮汽车集团股份有限公司 | A kind of the air control method and system of hydrogen cell automobile |
| CN110970642A (en) * | 2019-07-29 | 2020-04-07 | 北京亿华通科技股份有限公司 | Air system control method of fuel cell |
| CN111293333A (en) * | 2018-12-07 | 2020-06-16 | 上海汽车集团股份有限公司 | Control method and control device for air system of fuel cell |
| CN112644343A (en) * | 2021-01-12 | 2021-04-13 | 广西玉柴机器股份有限公司 | Air compressor rotating speed correction method of fuel cell system |
| CN113675444A (en) * | 2021-08-23 | 2021-11-19 | 无锡威孚高科技集团股份有限公司 | Fuel cell air system decoupling control method and device and storage medium |
| CN113745607A (en) * | 2021-08-31 | 2021-12-03 | 安徽理安极科技有限公司 | Fuel cell control method and system |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8956778B2 (en) * | 2012-10-25 | 2015-02-17 | GM Global Technology Operations LLC | Cathode flow split control and pressure control for a vehicle fuel cell power system |
| JP6229642B2 (en) * | 2014-11-15 | 2017-11-15 | トヨタ自動車株式会社 | Power supply system and fuel cell voltage control method |
-
2021
- 2021-12-30 CN CN202111668548.XA patent/CN114361523B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002260696A (en) * | 2000-12-27 | 2002-09-13 | Nissan Motor Co Ltd | Control device of fuel cell system |
| JP2004047371A (en) * | 2002-07-15 | 2004-02-12 | Fuji Electric Holdings Co Ltd | Solid polymer type fuel cell |
| JP2004355890A (en) * | 2003-05-28 | 2004-12-16 | Nissan Motor Co Ltd | Control device for fuel cell |
| CN208157535U (en) * | 2018-01-17 | 2018-11-27 | 安徽明天氢能科技股份有限公司 | A kind of air supply system of fuel cell system |
| CN109546181A (en) * | 2018-11-29 | 2019-03-29 | 安徽江淮汽车集团股份有限公司 | A kind of the air control method and system of hydrogen cell automobile |
| CN111293333A (en) * | 2018-12-07 | 2020-06-16 | 上海汽车集团股份有限公司 | Control method and control device for air system of fuel cell |
| CN110970642A (en) * | 2019-07-29 | 2020-04-07 | 北京亿华通科技股份有限公司 | Air system control method of fuel cell |
| CN112644343A (en) * | 2021-01-12 | 2021-04-13 | 广西玉柴机器股份有限公司 | Air compressor rotating speed correction method of fuel cell system |
| CN113675444A (en) * | 2021-08-23 | 2021-11-19 | 无锡威孚高科技集团股份有限公司 | Fuel cell air system decoupling control method and device and storage medium |
| CN113745607A (en) * | 2021-08-31 | 2021-12-03 | 安徽理安极科技有限公司 | Fuel cell control method and system |
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