CN212243031U - Control device for starting hydrogen energy automobile fuel cell in low-temperature environment - Google Patents
Control device for starting hydrogen energy automobile fuel cell in low-temperature environment Download PDFInfo
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- CN212243031U CN212243031U CN202020372020.2U CN202020372020U CN212243031U CN 212243031 U CN212243031 U CN 212243031U CN 202020372020 U CN202020372020 U CN 202020372020U CN 212243031 U CN212243031 U CN 212243031U
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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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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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
- 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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Abstract
The utility model provides a controlling means that hydrogen energy automobile fuel cell starts under low temperature environment, include: the fuel cell module, the power cell module and the super capacitor module; the fuel cell assembly, the power cell assembly and the super capacitor assembly are electrically connected with a bus; when the temperature of the super capacitor assembly is lower than 0 ℃, heating voltage is provided for the power battery assembly so as to heat the power battery assembly; the power battery assembly and the super capacitor assembly are used for supplying power to the fuel battery assembly at the same time so as to realize normal starting of the fuel battery assembly in a low-temperature environment. The utility model has the advantages that: the power battery heat management system is powered by the power battery heat management system, so that the power battery can reach an ideal power supply state. And the super capacitor SC and the power battery supply power to the fuel battery BOP at the same time, so that the quick start of the fuel battery is ensured.
Description
Technical Field
The utility model relates to a new energy automobile technical field especially relates to a controlling means that hydrogen energy automobile fuel cell starts under low temperature environment.
Background
With the rapid development of hydrogen energy fuel cell electric automobiles, various performance indexes of the whole automobile are continuously improved, and whether the whole automobile can be normally started in a low-temperature environment is a serious test for the whole automobile. The fuel cell system of the whole vehicle and the auxiliary energy source and other components of the whole vehicle are affected by different environments, and the starting sequence and the starting strategy among the components are coordinated, so that the success of cold starting of the hydrogen energy fuel cell vehicle can be ensured, and the environment adaptability of the whole vehicle is improved.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems, the utility model provides a control device for starting a hydrogen energy automobile fuel cell in a low-temperature environment; the method mainly comprises the following steps: the fuel cell module, the power cell module and the super capacitor module; the fuel cell assembly, the power cell assembly and the super capacitor assembly are electrically connected with a bus; the super capacitor assembly is used for providing heating voltage for the power battery assembly when the temperature is lower than 0 ℃ so as to heat the power battery assembly; the power battery assembly and the super capacitor assembly are used for supplying power to the fuel battery assembly at the same time so as to realize normal starting of the fuel battery assembly in a low-temperature environment.
Further, the fuel cell assembly includes: a fuel cell and a first power distribution unit (PDU 1); the power battery assembly comprises: a power battery and a second power distribution unit (PDU 2); the supercapacitor assembly comprises: a super capacitor and a third power distribution unit (PDU 3);
the first power distribution unit, the second power distribution unit and the third power distribution unit are respectively electrically connected with the fuel cell, the power cell and the super capacitor, and the first power distribution unit, the second power distribution unit and the third power distribution unit are all connected with the bus to respectively control the connection of the fuel cell, the power cell and the super capacitor with the bus, namely, the anode and the cathode of the first power distribution unit are respectively connected with the anode and the cathode of the second power distribution unit and the third power distribution unit.
Further, the fuel cell assembly further includes: a fuel cell BOP; the fuel cell BOP adopts a high-pressure platform component and is directly electrically connected with the bus.
Further, the power battery assembly further comprises a battery thermal management unit; and the battery thermal management unit adopts a high-voltage platform part, is directly electrically connected with the bus and is used for heating the power battery.
Further, a control method for starting a hydrogen energy automobile fuel cell in a low-temperature environment is applied to a control device for starting the hydrogen energy automobile fuel cell in the low-temperature environment; the control method for starting the hydrogen energy automobile fuel cell in the low-temperature environment comprises the following steps:
s101: when the temperature of the power battery is lower than 0 ℃ (TBD, refer to but not limited to this value), the discharge capacity of the power battery is limited, and cannot meet the BOP power requirement when the fuel cell is started, and a battery thermal management unit of the power battery needs to be started to heat the power battery;
s102: the super capacitor provides voltage for the battery thermal management unit through a third power distribution unit to start the battery thermal management unit and heat the power battery;
s103: judging whether the temperature of the power battery is more than 10 ℃ (TBD, referred to but not limited to the value) and the allowable discharge power of the power battery is more than 5kW (TBD, referred to but not limited to the value); if yes, go to step S104; otherwise, returning to the step S102;
s104: contactors in the first power distribution unit and the second power distribution unit are simultaneously attracted, and the super capacitor and the power battery simultaneously supply power to the fuel battery BOP to start the fuel battery;
s105: and after the fuel cell is successfully started, the whole vehicle enters a feasible state, and the fuel cell is successfully started in a low-temperature environment.
Further, in step S101, if the temperature of the power battery is greater than or equal to 0 ℃, a normal power-on process is performed, that is, the power battery and the super capacitor simultaneously supply power to the fuel cell BOP to start the fuel cell.
The utility model provides a beneficial effect that technical scheme brought is: the utility model provides a technical scheme fully considers hydrogen energy fuel cell system, and power battery and super capacitor SC receive the difference of temperature influence degree, confirm different battery pack's start-up order. The access of each energy source is controlled by the respective power distribution unit PDU, and the control is convenient. The super capacitor SC is slightly influenced by temperature, and firstly supplies power to a power battery thermal management system, so that the power battery reaches an ideal power supply state. And the super capacitor SC and the power battery supply power to the fuel battery BOP at the same time, so that the quick start of the fuel battery is ensured.
Drawings
The invention will be further explained with reference to the drawings and examples, wherein:
FIG. 1 is a diagram of a control device for starting a fuel cell of a hydrogen-powered vehicle in a low-temperature environment according to an embodiment of the present invention;
fig. 2 is a flowchart of a control method for starting a hydrogen energy automobile fuel cell in a low temperature environment according to an embodiment of the present invention.
Detailed Description
In order to clearly understand the technical features, objects, and effects of the present invention, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
The embodiment of the utility model provides a control device for starting a hydrogen energy automobile fuel cell in a low-temperature environment;
referring to fig. 1, fig. 1 is a diagram of a control device for starting a hydrogen energy automobile fuel cell in a low temperature environment according to an embodiment of the present invention; the control device for starting the hydrogen energy automobile fuel cell in the low-temperature environment is applied to the hydrogen energy automobile and comprises: the fuel cell module 1, the power cell module 2 and the super capacitor module 3; the fuel cell component 1, the power cell component 2 and the super capacitor component 3 are electrically connected with a bus; the super capacitor assembly 3 is used for providing heating voltage for the power battery assembly 2 when the temperature is lower than 0 ℃ so as to heat the power battery assembly 2; the power battery component 2 and the super capacitor component 3 are used for supplying power to the fuel battery component 1 at the same time so as to realize normal starting of the fuel battery component 1 in a low-temperature environment.
The fuel cell assembly 1 includes: a fuel cell 11 and a first power distribution unit (PDU1) 12; the power battery assembly 2 comprises: a power battery 21 and a second power distribution unit (PDU2) 22; the supercapacitor assembly 3 comprises: a supercapacitor 31 and a third power distribution unit (PDU3) 32;
the first power distribution unit 12, the second power distribution unit 22 and the third power distribution unit 32 are electrically connected to the fuel cell 11, the power cell 21 and the super capacitor 31, respectively, and the first power distribution unit 12, the second power distribution unit 2 and the third power distribution unit 32 are connected to the bus to control the connection of the fuel cell 11, the power cell 12 and the super capacitor 31 to the bus, respectively, that is, the anode and the cathode of the first power distribution unit 12 are connected to the anode and the cathode of the second power distribution unit 22 and the third power distribution unit 32, respectively.
The fuel cell assembly 1 further includes: the fuel cell BOP 13; the fuel cell BOP13 employs high-pressure platform components and is directly electrically connected to the bus bars.
The power battery assembly 2 further comprises a battery thermal management unit 23; and the battery thermal management unit 23 adopts a high-voltage platform part, is directly electrically connected with the bus, and is used for heating the power battery 21.
Referring to fig. 2, fig. 2 is a flowchart illustrating a control method for starting a fuel cell of a hydrogen vehicle in a low temperature environment according to an embodiment of the present invention; the control method for starting the hydrogen energy automobile fuel cell in the low-temperature environment is applied to the control device for starting the hydrogen energy automobile fuel cell in the low-temperature environment; the control method for starting the hydrogen energy automobile fuel cell in the low-temperature environment comprises the following steps:
s101: when the temperature of the power battery 21 is lower than 0 ℃ (TBD, refer to but not limited to this value), the discharge capacity of the power battery 21 is limited, and the BOP power requirement when the fuel cell 11 is stacked cannot be met, so that the battery thermal management unit 23 of the power battery 21 needs to be started to heat the power battery 21;
s102: the super capacitor 31 provides voltage for the battery thermal management unit 23 through a third power distribution unit 32 to start the battery thermal management unit 23, so as to heat and raise the temperature of the power battery 21;
s103: judging whether the temperature of the power battery 21 is more than 10 ℃ (TBD, referred to but not limited to this value) and the allowable discharge power of the power battery 21 is more than 5kW (TBD, referred to but not limited to this value); if yes, go to step S104; otherwise, returning to the step S102;
s104: contactors in the first power distribution unit 12 and the second power distribution unit 22 are simultaneously closed, and the super capacitor 31 and the power battery 21 simultaneously supply power to the fuel cell BOP13 to start the fuel cell 11;
s105: and after the fuel cell 11 is successfully started, the whole vehicle enters a feasible state, and the starting is successful in a low-temperature environment.
In step S101, if the temperature of the power battery 21 is greater than or equal to 0 ℃, a normal power-on process is performed, that is, the power battery 21 and the super capacitor 31 simultaneously supply power to the fuel cell BOP13 to start the fuel cell 11.
The utility model has the advantages that: the utility model provides a technical scheme fully considers hydrogen energy fuel cell system, and power battery and super capacitor SC receive the difference of temperature influence degree, confirm different battery pack's start-up order. The access of each energy source is controlled by the respective power distribution unit PDU, and the control is convenient. The super capacitor SC is slightly influenced by temperature, and firstly supplies power to a power battery thermal management system, so that the power battery reaches an ideal power supply state. And the super capacitor SC and the power battery supply power to the fuel battery BOP at the same time, so that the quick start of the fuel battery is ensured.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (4)
1. The utility model provides a controlling means that hydrogen energy automobile fuel cell starts under low temperature environment which characterized in that: the method comprises the following steps: the fuel cell module (1), the power cell module (2) and the super capacitor module (3); the fuel cell assembly (1), the power cell assembly (2) and the super capacitor assembly (3) are electrically connected with a bus; when the temperature of the super capacitor assembly (3) is lower than 0 ℃, heating voltage is provided for the power battery assembly (2) so as to heat the power battery assembly (2); the power battery assembly (2) and the super capacitor assembly (3) are used for supplying power to the fuel battery assembly (1) at the same time so as to realize normal starting of the fuel battery assembly (1) in a low-temperature environment.
2. The control device for starting the hydrogen energy automobile fuel cell in the low-temperature environment according to claim 1, characterized in that: the fuel cell assembly (1) includes: a fuel cell (11) and a first power distribution unit (12); the power battery assembly (2) comprises: a power battery (21) and a second power distribution unit (22); the supercapacitor assembly (3) comprises: a super capacitor (31) and a third power distribution unit (32);
the first power distribution unit (12), the second power distribution unit (22) and the third power distribution unit (32) are respectively electrically connected with the fuel cell (11), the power cell (21) and the super capacitor (31), and the first power distribution unit (12), the second power distribution unit (22) and the third power distribution unit (32) are all connected with the bus to respectively control the connection of the fuel cell (11), the power cell (21) and the super capacitor (31) with the bus, namely, the anode and the cathode of the first power distribution unit (12) are respectively connected with the anode and the cathode of the second power distribution unit (22) and the third power distribution unit (32).
3. The control device for starting the hydrogen energy automobile fuel cell in the low-temperature environment according to claim 2, characterized in that: the fuel cell assembly (1) further comprises: a fuel cell BOP (13); the fuel cell BOP (13) adopts a high-voltage platform component and is directly electrically connected with the bus.
4. The control device for starting the hydrogen energy automobile fuel cell in the low-temperature environment according to claim 2, characterized in that: the power battery assembly (2) further comprises a battery thermal management unit (23); and the battery thermal management unit (23) adopts a high-voltage platform part, is directly electrically connected with the bus and is used for heating the power battery (21).
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| CN202020372020.2U CN212243031U (en) | 2020-03-23 | 2020-03-23 | Control device for starting hydrogen energy automobile fuel cell in low-temperature environment |
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| CN202020372020.2U CN212243031U (en) | 2020-03-23 | 2020-03-23 | Control device for starting hydrogen energy automobile fuel cell in low-temperature environment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111251947A (en) * | 2020-03-23 | 2020-06-09 | 武汉格罗夫氢能汽车有限公司 | Control device and method for starting hydrogen energy automobile fuel cell in low-temperature environment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111251947A (en) * | 2020-03-23 | 2020-06-09 | 武汉格罗夫氢能汽车有限公司 | Control device and method for starting hydrogen energy automobile fuel cell in low-temperature environment |
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