CN213212194U - Novel gas flow control system of fuel cell automobile - Google Patents
Novel gas flow control system of fuel cell automobile Download PDFInfo
- Publication number
- CN213212194U CN213212194U CN202022358489.3U CN202022358489U CN213212194U CN 213212194 U CN213212194 U CN 213212194U CN 202022358489 U CN202022358489 U CN 202022358489U CN 213212194 U CN213212194 U CN 213212194U
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- fuel cell
- regulator
- gas flow
- hub motor
- sensor
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- 239000000446 fuel Substances 0.000 title claims abstract description 86
- 238000012545 processing Methods 0.000 claims abstract description 14
- 239000007789 gas Substances 0.000 claims description 38
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 32
- 239000001257 hydrogen Substances 0.000 claims description 32
- 229910052739 hydrogen Inorganic materials 0.000 claims description 32
- 238000010248 power generation Methods 0.000 claims description 6
- 230000004044 response Effects 0.000 abstract description 4
- 238000004458 analytical method Methods 0.000 abstract description 2
- 230000001276 controlling effect Effects 0.000 description 7
- 239000002737 fuel gas Substances 0.000 description 6
- 239000007800 oxidant agent Substances 0.000 description 6
- 230000001590 oxidative effect Effects 0.000 description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 4
- 150000002500 ions Chemical class 0.000 description 4
- 239000001301 oxygen Substances 0.000 description 4
- 229910052760 oxygen Inorganic materials 0.000 description 4
- 230000001105 regulatory effect Effects 0.000 description 4
- 238000001514 detection method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000011897 real-time detection Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
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- 238000003487 electrochemical reaction Methods 0.000 description 1
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- 238000005516 engineering process Methods 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- -1 hydrogen ions Chemical class 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000011017 operating method Methods 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000011160 research Methods 0.000 description 1
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Images
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/40—Application of hydrogen technology to transportation, e.g. using fuel cells
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- Fuel Cell (AREA)
Abstract
The utility model provides a gas flow control system of a novel fuel cell automobile; the gas flow control system is divided into three parts, namely data acquisition, data processing and mechanical control; the data acquisition part consists of a rotating speed sensor, a current sensor and a voltage sensor and is used for acquiring the rotating speed and the current of the hub motor and the voltage of the fuel cell; the data processing part is a PLC controller and is used for processing and controlling data, carrying out numerical analysis on the acquired signals and sending control signals to the electric control part; the electrical control part comprises a first regulator and a second regulator, and is used for controlling the gas flow of the fuel cell according to a control instruction so as to realize the gas flow control of the fuel cell; the system can adjust the output power of the fuel cell in time according to the power output requirement of the fuel cell automobile, greatly improves the flow control precision and the response speed of the airflow, reduces the power regulation requirement of the power cell, and prolongs the service life of the fuel cell.
Description
Technical Field
The utility model belongs to the automatic control field, concretely relates to novel gas flow control system of fuel cell car.
Background
The hydrogen fuel cell automobile generates electric energy by utilizing the electrochemical reaction of hydrogen and oxygen, so that a motor is driven to rotate, and the electric automobile obtains kinetic energy. Taking a proton exchange membrane fuel cell as an example, a solid polymer is used as an electrolyte membrane, air is used as an oxidant, hydrogen is used as fuel gas, and a bipolar plate adopts graphite of a gas flow channel or a metal plate subjected to surface modification. At the anode, hydrogen loses electrons under the action of a catalyst to generate hydrogen positive ions (also called protons), and a proton exchange membrane of the fuel cell promotes the hydrogen positive ions to be transferred from the anode to the cathode; at the cathode, oxygen in the air obtains electrons on the surface of the catalyst to form negative ions, and the negative ions and the positive hydrogen ions transferred from the anode to the cathode are subjected to chemical reaction to generate water, and the water is discharged together with residual unreacted tail gas through the gas diffusion layer. Therefore, when the hydrogen fuel cell is operated, it is necessary to proportionally supply hydrogen gas and air (oxygen gas) to the fuel cell in real time, and at the same time, discharge water generated by the reaction, and adjust the supply amount of the fuel gas and the oxidant gas according to the power output requirement of the fuel cell, so as to improve the use efficiency of the fuel cell.
The hydrogen fuel cell control system requires precise coordination of cathode oxygen content and anode hydrogen content. When the power required by the whole vehicle changes along with the external environment, the following change of the air-fuel ratio required by the fuel cell in the hydrogen fuel cell system also occurs. An electric control regulating valve in the hydrogen supply system controls the flow rate of hydrogen entering the fuel cell, and if the control precision of the hydrogen flow rate is poor, the output power of the fuel cell fluctuates. How to adjust the flow of hydrogen and oxygen fed into the fuel cell in time to realize the quick dynamic response of the power output of the fuel cell, and implement high-efficiency control according to the power demand of a hydrogen fuel cell automobile is a great hotspot in the research field of the hydrogen fuel cell automobile at present, and has important significance for the popularization and the application of the hydrogen energy automobile. In addition, the efficient and reliable fuel cell can reduce the power compensation requirement of the power cell, reduce the capacity requirement of the power cell and lighten the reconditioning quality of the hydrogen fuel cell automobile, and has important significance for the popularization and the application of the hydrogen energy automobile.
SUMMERY OF THE UTILITY MODEL
In order to realize the high-efficient control of hydrogen fuel cell car gas flow, solve prior art's weak point, the utility model provides a novel fuel cell car gas flow control system and control method based on current detection to satisfy hydrogen fuel cell car development trend.
The technical scheme of the utility model as follows:
a gas flow control system of a novel fuel cell vehicle; the gas flow control system comprises a hub motor I, a motor controller I, a hub motor II, a motor controller II, a rotating speed sensor, a current sensor, a voltage sensor, a PLC (programmable logic controller), a first regulator, a second regulator, an air compressor, a hydrogen compressor, a fuel cell and a power cell; the current sensor is electrically connected with the hub motor I and the hub motor II and is used for acquiring current signals of the hub motor I and the hub motor II; the rotating speed sensor is electrically connected with the hub motor I and used for acquiring a rotating speed signal; the voltage sensor is electrically connected with the fuel cell and is used for collecting a voltage signal of the fuel cell; the PLC is electrically connected with the rotating speed sensor, the current sensor and the voltage sensor and is used for data processing and control; one end of the first regulator and one end of the second regulator are electrically connected with the PLC, and the other end of the first regulator and the second regulator are connected with the fuel cell and used for controlling the gas flow of the fuel cell according to the instruction of the controller; the air compressor is connected with the fuel cell and used for providing air required by power generation; the hydrogen compressor is connected with the fuel cell and is used for providing hydrogen energy required by power generation; the fuel cell is connected with the power cell in parallel, and provides power for the hub motor I and the hub motor II through the motor controller I and the motor controller II respectively.
The working principle is as follows: the fuel cell automobile gas flow control system is mainly divided into three parts of data acquisition, data processing and electrical control. The data acquisition part consists of a rotating speed sensor, a current sensor and a voltage sensor and is used for acquiring the rotating speed and current data of the hub motor and the output voltage of the fuel cell; the data processing part is the PLC controller and is used for processing and controlling data, carrying out numerical analysis on data acquisition signals and transmitting control signals to the electric control part; the electric control part comprises a first regulator and a second regulator, wherein a gas valve of the first regulator is connected with a fuel gas inlet, and a gas valve of the second regulator is connected with an oxidant gas inlet and is used for controlling and regulating the gas flow of the fuel cell according to the instruction of the controller, so that the automatic control of the gas flow of the fuel cell is realized.
Preferably, the current sensor is a hall current sensor and is used for detecting a three-phase current instantaneous value of the hub motor.
Preferably, the voltage sensor is a sliding resistor or a varistor box for detecting the output voltage of the fuel cell.
Preferably, the first regulator and the second regulator are divided into a driving circuit and an electric valve; the drive circuit is used for receiving a control signal of the PLC and outputting the control signal to the electric valve; the electrically operated valve performs a relevant operation in accordance with a control signal, thereby controlling the opening degree of the valve.
Compared with the prior art, the beneficial effects of the utility model are that:
(1) the utility model discloses utilize hall current sensor to carry out fuel cell automobile wheel hub motor three-phase current and detect, it is high to power take off's real-time detection degree of accuracy to have, fault rate low grade advantage.
(2) The utility model discloses combine together electrical detection control unit and mechanical control part, when power adjustment appears in the fuel cell car, can realize the automatic control of fuel gas, oxidant gas, degree of automation is high, and control is accurate.
(3) The utility model discloses having improved the gaseous flow control precision of fuel cell greatly, having realized fuel cell to the real-time response of power demand, intelligent control reduces power battery power compensation demand, reduces power battery capacity demand, alleviates the quality of readiness of fuel cell car.
Drawings
Fig. 1 is a schematic structural diagram of a gas flow control system of a novel fuel cell vehicle according to the present invention;
fig. 2 is a schematic structural diagram of the first adjuster and the second adjuster of the present invention.
Detailed Description
In order to further understand the structure, characteristics and other objects of the present invention, the following detailed description is provided with reference to the attached drawings of the preferred embodiments, which are only used for illustrating the technical solution of the present invention and are not limited to the present invention.
First, as shown in fig. 1, a schematic structural diagram of a gas flow control system of a novel fuel cell vehicle according to the present invention is shown. The gas flow control system comprises three parts, namely data acquisition, data processing and electrical control; the data acquisition part consists of a rotating speed sensor, a current sensor and a voltage sensor and is used for acquiring rotating speed, current and voltage signals; the data processing part is a PLC controller and is used for data processing and control; the electrical control part is arranged in the first regulator and the second regulator and is used for controlling and regulating the gas flow of the fuel cell according to the output instruction of the PLC controller, thereby realizing the automatic control of the gas flow of the fuel cell.
The data acquisition part comprises a rotating speed sensor, a current sensor and a voltage sensor; a rotating speed sensor of the data acquisition part acquires the current rotating speed of an automobile hub motor of the fuel cell; the current sensor of the data acquisition part is a Hall current sensor and is used for detecting the three-phase current instantaneous value of the hub motor and sending the three-phase current instantaneous value to the PLC; the voltage sensor of the data acquisition part is a sliding resistor or a variable resistance box, is connected across the anode and the cathode of the fuel cell and is used for detecting the output voltage of the fuel cell.
The data processing part is a gas flow controller based on a PLC technology, and the input end of the data processing part is respectively connected with the rotating speed, the current and the voltage signal of the data acquisition part.
The gas valve of the first regulator is connected with the fuel gas inlet, the gas valve of the second regulator is connected with the oxidant gas inlet, and the gas valve of the first regulator and the gas valve of the second regulator are used for controlling and regulating the gas flow of the fuel cell according to the instruction of the controller, so that the automatic control of the gas flow of the fuel cell is realized.
Referring to fig. 1, the gas flow control system of the fuel cell vehicle includes a hub motor i, a motor controller i, a hub motor ii, a motor controller ii, a rotation speed sensor, a current sensor, a voltage sensor, a PLC controller, a first regulator, a second regulator, an air compressor, a hydrogen compressor, a fuel cell, and a power cell; the current sensor is electrically connected with the hub motor I and the hub motor II and is used for acquiring current signals of the hub motor I and the hub motor II; the rotating speed sensor is electrically connected with the hub motor I and used for acquiring a rotating speed signal; the voltage sensor is electrically connected with the fuel cell and is used for collecting a voltage signal of the fuel cell; the PLC is electrically connected with the rotating speed sensor, the current sensor and the voltage sensor and is used for data processing and control; one end of the first regulator and one end of the second regulator are electrically connected with the PLC, and the other end of the first regulator and the second regulator are connected with the fuel cell and used for controlling the gas flow of the fuel cell according to the instruction of the controller; the air compressor is connected with the fuel cell and used for providing air required by power generation; the hydrogen compressor is connected with the fuel cell and is used for providing hydrogen energy required by power generation; the fuel cell is connected with the power cell in parallel, and provides power for the hub motor I and the hub motor II through the motor controller I and the motor controller II respectively. The motor controller I and the motor controller II are V6-H-2D 30G, produced by Shenzhen blue Haihe Corp.
As shown in fig. 2, the structure of the first and second regulators of the present invention is schematically illustrated. The first and second regulators include a drive circuit and an electrically operated valve, respectively. The drive circuit is used for receiving a control signal of the PLC and transmitting the control signal to the electric valve; and the electric valve performs related mechanical actions according to the control signal to control the opening of the air valve.
Finally, the utility model discloses a novel gas flow control system and operating method of fuel cell car, its concrete technical characterstic is as follows:
(1) the utility model discloses utilize hall current sensor to carry out fuel cell automobile wheel hub motor three-phase current and detect, have to power take off real-time detection degree of accuracy height, fault rate low grade advantage.
(2) The utility model discloses combine together electrical detection control unit and mechanical control part, when power adjustment appears in the fuel cell car, can realize the automatic control of fuel gas, oxidant gas, degree of automation is high, and control is accurate.
(3) The utility model discloses having improved the gaseous flow control precision of fuel cell greatly, having realized fuel cell to the real-time response of power demand, intelligent control reduces power battery power compensation demand, reduces power battery capacity demand, alleviates hydrogen fuel cell car and has a good deal of quality.
It should be noted that the above mentioned embodiments and embodiments are intended to demonstrate the practical application of the technical solution provided by the present invention, and should not be interpreted as limiting the scope of the present invention. Those skilled in the art should understand that they can practice the present invention within the spirit and principle of the present invention
Various modifications, equivalents, or improvements may be made. The protection scope of the present invention is subject to the appended claims.
Claims (4)
1. A gas flow control system of a novel fuel cell automobile is characterized by comprising a hub motor I, a motor controller I, a hub motor II, a motor controller II, a rotating speed sensor, a current sensor, a voltage sensor, a PLC (programmable logic controller), a first regulator, a second regulator, an air compressor, a hydrogen compressor, a fuel cell and a power cell; the current sensor is electrically connected with the hub motor I and the hub motor II and is used for acquiring current signals of the hub motor I and the hub motor II; the rotating speed sensor is electrically connected with the hub motor I and used for acquiring a rotating speed signal; the voltage sensor is electrically connected with the fuel cell and is used for collecting a voltage signal of the fuel cell; the PLC is electrically connected with the rotating speed sensor, the current sensor and the voltage sensor and is used for data processing and control; one end of the first regulator and one end of the second regulator are electrically connected with the PLC, and the other end of the first regulator and the second regulator are connected with the fuel cell and used for controlling the gas flow of the fuel cell according to the instruction of the controller; the air compressor is connected with the fuel cell and used for providing air required by power generation; the hydrogen compressor is connected with the fuel cell and is used for providing hydrogen energy required by power generation; the fuel cell is connected with the power cell in parallel, and provides power for the hub motor I and the hub motor II through the motor controller I and the motor controller II respectively.
2. The system of claim 1, wherein the current sensor is a hall current sensor for detecting a three-phase instantaneous current of the in-wheel motor.
3. The system of claim 1, wherein the voltage sensor is a sliding resistor or a varistor box for detecting the output voltage of the fuel cell.
4. The gas flow control system of the novel fuel cell automobile as claimed in claim 1, wherein the first regulator and the second regulator are divided into a driving circuit and an electric valve; the drive circuit is used for receiving a control signal of the PLC and outputting the control signal to the electric valve; the electrically operated valve performs a relevant operation in accordance with a control signal, thereby controlling the opening degree of the valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022358489.3U CN213212194U (en) | 2020-10-21 | 2020-10-21 | Novel gas flow control system of fuel cell automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022358489.3U CN213212194U (en) | 2020-10-21 | 2020-10-21 | Novel gas flow control system of fuel cell automobile |
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| Publication Number | Publication Date |
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| CN213212194U true CN213212194U (en) | 2021-05-14 |
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| CN202022358489.3U Expired - Fee Related CN213212194U (en) | 2020-10-21 | 2020-10-21 | Novel gas flow control system of fuel cell automobile |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112259761A (en) * | 2020-10-21 | 2021-01-22 | 辽宁科技大学 | Gas flow control system and control method of novel fuel cell automobile |
| CN117577888A (en) * | 2024-01-16 | 2024-02-20 | 质子汽车科技有限公司 | Hydrogen supply system, hydrogen supply method, and storage medium |
-
2020
- 2020-10-21 CN CN202022358489.3U patent/CN213212194U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112259761A (en) * | 2020-10-21 | 2021-01-22 | 辽宁科技大学 | Gas flow control system and control method of novel fuel cell automobile |
| CN112259761B (en) * | 2020-10-21 | 2023-08-15 | 辽宁科技大学 | Novel fuel cell automobile gas flow control system and control method |
| CN117577888A (en) * | 2024-01-16 | 2024-02-20 | 质子汽车科技有限公司 | Hydrogen supply system, hydrogen supply method, and storage medium |
| CN117577888B (en) * | 2024-01-16 | 2024-04-12 | 质子汽车科技有限公司 | Hydrogen supply system, hydrogen supply method, and storage medium |
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| GR01 | Patent grant | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210514 |