CN207859942U - Electric vehicle power unit temperature control system and its vehicle - Google Patents
Electric vehicle power unit temperature control system and its vehicle Download PDFInfo
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- CN207859942U CN207859942U CN201721308945.5U CN201721308945U CN207859942U CN 207859942 U CN207859942 U CN 207859942U CN 201721308945 U CN201721308945 U CN 201721308945U CN 207859942 U CN207859942 U CN 207859942U
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 70
- 239000007788 liquid Substances 0.000 claims description 15
- 238000011144 upstream manufacturing Methods 0.000 claims description 8
- 238000001816 cooling Methods 0.000 description 28
- 239000002826 coolant Substances 0.000 description 23
- 239000000498 cooling water Substances 0.000 description 9
- 238000010438 heat treatment Methods 0.000 description 5
- 239000000284 extract Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 230000002277 temperature effect Effects 0.000 description 1
- 230000036413 temperature sense Effects 0.000 description 1
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- Electric Propulsion And Braking For Vehicles (AREA)
- Air-Conditioning For Vehicles (AREA)
Abstract
The utility model is related to electric vehicle domain of control temperature, and in particular to a kind of electric vehicle power unit temperature control system and its vehicle.The utility model is by the way that unit to be cooled to be assigned in two branches in parallel so that each unit to be cooled can be cooled down timely and effectively, ensure that the stable operation of system.Make automobile may be implemented to heat electrical components under cryogenic by the way that heater is arranged simultaneously, the temperature of electrical components is promoted, to make pure electric automobile can also normally travel in extremely frigid zones.
Description
Technical field
The utility model is related to electric vehicle domain of control temperature, and in particular to a kind of electric vehicle power unit temperature control system
System and its vehicle.
Background technology
As energy crisis and problem of environmental pollution become increasingly conspicuous, electric vehicle can improve energy resource structure, realize low row
It puts or even zero-emission, is increasingly becoming the hot spot of home and abroad research and development.Existing electric vehicle generally use water-cooling pattern
It is cooled to driving motor and controller to ensure its performance.Therefore, electric vehicle cooling circuit is most important.
Existing electric vehicle cooling circuit is connected in series by driving motor, electric machine controller, charger, DC-DC substantially.
Since cooling unit is more, system resistance is big, needs cooling component that cannot be winding is effectively cooled, and it is electronic easily to damage electric vehicle
The performance of component and service life, and can not be bad to coolant rate real-time control, cooling effect in cooling circuit.It is existing simultaneously
Lack the device heated to DC-DC in power unit in technology so that electric vehicle can not normal use in extremely frigid zones.
Utility model content
The purpose of this utility model is to provide a kind of electric vehicle power unit temperature control system and its vehicle, to solve electricity
Since cooling unit is more and is cascaded structure in electrical automobile power unit cooling system, resulting in the need for cooling component cannot obtain
To effectively cooling problem.
To achieve the above object, the embodiment of the utility model provides a kind of electric vehicle power unit temperature control system, packet
Include following system schema：
System schema one includes heat exchange branch with radiator, for the first temperature control branch with DC-DC heat exchanges
Road and for the second temperature control branch with driving motor heat exchange, the first temperature control branch, the second temperature control branch and the heat
Exchange branch circuit parallel connection.
System schema two further includes a connection branch on the basis of system schema one, and the first of the connection branch
End connects the first temperature control branch, and the second end of the connection branch connects the second temperature control branch；The connection branch
So that the radiator, DC-DC and driving motor is constituted the first temperature control loop, in first temperature control loop, is dissipated from described
The pipe liquid of thermal outflow is followed by the DC-DC and driving motor.
System schema three, on the basis of system schema two, the downstream of DC-DC described in the first temperature control branch,
The first end connects the first temperature control branch by triple valve；In the second temperature control branch, the second end and institute
The upstream for stating the tie point of the second temperature control branch is provided with conducting switch.
System schema four, five, six, respectively on the basis of system schema one, two, three, the institute in the heat exchange branch
State the downstream setting having heaters of radiator.
System schema seven, eight, nine, respectively on the basis of system schema four, five, six, in the first temperature control branch,
The first end and the upstream of the first temperature control branch tie point also carry out heat exchange with electric machine controller and charger.
System schema ten, 11,12, respectively on the basis of system schema seven, eight, nine, in the first temperature control branch
The downstream of Lu Zhong, the first end and the first temperature control branch tie point includes the first water pump；In the second temperature control branch
In, the downstream of the second end and the second temperature control branch tie point includes the second water pump.
System schema 13,14,15 further includes being used for respectively on the basis of system schema ten, 11,12
Detect the first flow sensor of the first pump capacity；Second flow sensor for detecting the second pump capacity；For examining
Survey the first temperature sensor of the electric machine controller temperature；Second temperature for detecting the driving motor temperature senses
Device；Water temperature sensor for detecting water temperature in pipeline.
System schema 16,17,18 further includes control respectively on the basis of system schema 13,14,15
Device processed, the controller connect the water temperature sensor, radiator, heater, triple valve, conducting switch, the first temperature and pass
Sensor, second temperature sensor, the first water pump, first flow sensor, the second water pump and second flow sensor.
System schema 19,20,21, respectively on the basis of system schema 16,17,18, the control
Device processed is also connected with buzzer and alarm lamp.
Correspondingly, the utility model additionally provides a kind of electric vehicle based on power unit temperature control system, including it is as follows
Electric vehicle scheme：
Electric vehicle scheme one, the temperature control system include the heat exchange branch with radiator, for hot with DC-DC
Exchange the first temperature control branch and for the second temperature control branch with driving motor heat exchange, the first temperature control branch, second
Temperature control branch and the heat exchange branch circuit parallel connection.
Electric vehicle scheme two further includes a connection branch on the basis of electric vehicle scheme one, the connection branch
The first end on road connects the first temperature control branch, and the second end of the connection branch connects the second temperature control branch；It is described
Connection branch makes the radiator, DC-DC and driving motor constitute the first temperature control loop, in first temperature control loop,
The pipe liquid flowed out from the radiator is followed by the DC-DC and driving motor.
Electric vehicle scheme three, on the basis of electric vehicle scheme two, the DC-DC described in the first temperature control branch
Downstream, the first end connects the first temperature control branch by triple valve；In the second temperature control branch, described second
End and the upstream of the tie point of the second temperature control branch are provided with conducting switch.
Electric vehicle scheme four, five, six, respectively on the basis of electric vehicle scheme one, two, three, in the heat exchange
Having heaters is arranged in the downstream of radiator described in branch.
Electric vehicle scheme seven, eight, nine, respectively on the basis of electric vehicle scheme four, five, six, in first temperature
It controls in branch, the first end and the upstream of the first temperature control branch tie point also carry out heat with electric machine controller and charger
It exchanges.
Electric vehicle scheme ten, 11,12, respectively on the basis of electric vehicle scheme seven, eight, nine, described
In one temperature control branch, the downstream of the first end and the first temperature control branch tie point includes the first water pump；Described second
In temperature control branch, the downstream of the second end and the second temperature control branch tie point includes the second water pump.
Electric vehicle scheme 13,14,15, respectively on the basis of electric vehicle scheme ten, 11,12, also
It include the first flow sensor for detecting the first pump capacity；Second flow for detecting the second pump capacity senses
Device；The first temperature sensor for detecting the electric machine controller temperature；Second for detecting the driving motor temperature
Temperature sensor；Water temperature sensor for detecting water temperature in pipeline.
Electric vehicle scheme 16,17,18, respectively on the basis of electric vehicle scheme 13,14,15,
Further include controller, the controller connects the water temperature sensor, radiator, heater, triple valve, conducting switch, the
One temperature sensor, second temperature sensor, the first water pump, first flow sensor, the second water pump and second flow sensor.
Electric vehicle scheme 19,20,21, respectively on the basis of electric vehicle scheme 16,17,18
On, the controller is also connected with buzzer and alarm lamp.
The utility model has the beneficial effects that：By the way that unit to be cooled is assigned in two branches in parallel so that each
A unit to be cooled can be cooled down timely and effectively, ensure that the stable operation of system.
The further advantageous effect of the utility model is：Make automobile under cryogenic can be real by the way that heater is arranged
Now electrical components are heated, the temperature of electrical components are promoted, to make pure electric automobile can also normally travel in extremely frigid zones.
The rotating speed of electric water pump is controlled by the driving motor temperature information and electric machine controller temperature information that measure electric vehicle simultaneously,
Electric energy can be effectively saved, the continual mileage of electric vehicle is extended.
Description of the drawings
Fig. 1 is the structure chart of the utility model embodiment 1；
Fig. 2 is the structure chart of the utility model embodiment 2.
Specific implementation mode
The utility model is described in more detail below in conjunction with the accompanying drawings.
The purpose of the utility model is to overcome cooling unit in existing electric automobile cooling system is more, cooling portion is needed
The technical issues of part cannot be winding is effectively cooled provides a kind of electric vehicle power unit temperature control system and its vehicle, below
Give two specific embodiments.
Embodiment 1
Electric vehicle power unit temperature control system described in the present embodiment includes two cooling circuits, further includes one and adds
Hot loop, each circuit pass through respectively on electric vehicle it is different wait for heat-exchanging part, can be to electronic under hot conditions
Component is cooled down, and can be heated to electrical components under cryogenic conditions.
As shown in Figure 1, including water temperature sensor 1, cooling water tank 2, radiator fan 21, the first electronic water pump 15, first-class
Quantity sensor 14, driving motor temperature sensor 5, driving motor 6, solenoid valve 7, heater 8, electric machine controller 9, motor control
Device temperature sensor 10, charger 11, DC-DC12, three-way magnetic valve 13, second flow sensor 4, the second electronic water pump 3, control
Molding block 16, buzzer 17 and alarm lamp 18.
The water outlet of heater 8 is parallel with two cooling circuits by pipeline, one in two cooling circuits
Item have passed through solenoid valve 7, driving motor 6 and the second electronic water pump 3 respectively, another circuit have passed through successively electric machine controller 9,
Charger 11, DC-DC12, three-way magnetic valve 13 and the first electronic water pump 15, after two cooling circuit parallel connections by
The water inlet of cooling water tank heater return 8.Control module 16 respectively with water temperature sensor 1, radiator fan 21, the first electronic water
Pump 15, first flow sensor 14, driving motor temperature sensor 5, solenoid valve 7, heater 8, electric machine controller temperature sensing
Device 10, three-way magnetic valve 13, second flow sensor 4, the second electronic water pump 3 are connected.
Driving motor temperature sensor 5, first flow sensor 14, electric machine controller temperature sensor 10, second flow
Sensor 4 detect respectively the temperature of driving motor 6, the coolant rate of the first electronic water pump 15, electric machine controller 9 temperature and
The coolant rate of second electronic water pump 3, and testing result is sent to control module 16.Control module 16 is according to need at this time
It asks, coolant rate is controlled by adjusting the rotating speed of the first electronic water pump 15 and the second electronic water pump 3.
When electric machine controller temperature sensor 10 detects that the coolant temperature for flowing through electric machine controller 9 is more than or equal to -40
DEG C and less than or equal to -15 DEG C when, control module 16 control solenoid valve 7 close, control three-way magnetic valve 13 will lead to the first electronics
The pipeline of water pump 15 is closed, and will be connected towards the pipeline of driving motor 6, is then flowed separately through cooling water tank 2, heater 8, motor control
Device 9 processed, charger 11, DC-DC12, three-way magnetic valve 13, driving motor 6, the second electronic water pump 3 pipeline composition connect back
Road, the coolant liquid in pipeline after the heater 8 heating, by the second electronic water pump 3 supply electric machine controller 9, charger 11,
DC-DC12, driving motor 6 are heated.In the present embodiment when entering heating link, the liquid in pipeline first flows through DC-DC,
After flow through driving motor, allow for when temperature is relatively low, DC-DC is larger by low temperature effect, is badly in need of heating, and driving motor sheet
Body will produce certain heat at runtime, and the demand to heating is little, therefore liquid preferably first flows through DC-DC in pipeline, after
Flow through driving motor.
It is more than -15 DEG C via the temperature of the coolant liquid of electric machine controller 9 when electric machine controller temperature sensor 10 is detected
When, heater 8 is stopped, and solenoid valve 7 is opened, and three-way magnetic valve 13 will be connected towards the pipeline of the first electronic water pump 15, will
Pipeline towards driving motor 6 is closed, and the first electronic water pump 15 extracts coolant liquid out from cooling water tank 2, by heater 8
Pipeline, to electric machine controller 9, charger 11, DC-DC12 heat dissipation.Second electronic water pump 3 is by coolant liquid from cooling water tank 2
Extraction, cools down driving motor 6 by pipeline, the solenoid valve 7 in heater 8.
When water temperature sensor 1 detects that coolant temperature is higher than its predetermined threshold value upper limit, such as coolant temperature is more than
Equal to 70 DEG C, control module 16 controls cooling fan 21 and starts to work, when water temperature sensor 1 detects that coolant temperature is less than it
When the predetermined threshold value upper limit, control module 16 controls cooling fan 21 and is stopped.
When one of driving motor temperature sensor 5 and electric machine controller temperature sensor 10 detect coolant temperature
When higher than its alarm threshold value, control module 16 controls alarm lamp and lights, buzzer warning, and driver's automobile is reminded to cool back
Road, driving motor or electric machine controller are likely to occur failure, need to overhaul.
Embodiment 2
The present embodiment does not consider the case where heating, needs cooling be designed just for power unit.The present embodiment institute
It includes two cooling circuits to state electric vehicle power unit temperature control system, and the circuit is passed through on electric vehicle not respectively
Same waits for heat-exchanging part, can be cooled down to electrical components under hot conditions.
As shown in Fig. 2, including water temperature sensor 1, cooling water tank 2, radiator fan 3, the first electronic water pump 6, first flow
Sensor 5, driving motor temperature sensor 8, driving motor 7, DC-DC4, second flow sensor 9, the second electronic water pump 10,
Control module 11, buzzer 12 and alarm lamp 13.
Pipe liquid stream in first cooling circuit is through cooling water tank 2, driving motor 7 and the second electronic water pump 10；Second cooling
Circuit middle pipe liquid stream is through cooling water tank 2, DC-DC4 and the first electronic water pump 6.Control module 11 respectively with water temperature sensor 1, dissipate
Hot-air fan 2, the first electronic water pump 6, first flow sensor 5, driving motor temperature sensor 8, second flow sensor 9,
Two electronic water pumps 10 are connected.
Driving motor temperature sensor 8, first flow sensor 5, second flow sensor 9 detect driving motor 7 respectively
Temperature, the first electronic water pump 6 coolant rate and the second electronic water pump 10 coolant rate, and testing result is sent
To control module 11.Control module 11 is according to demand at this time, by adjusting the first electronic water pump 6 and the second electronic water pump 10
Rotating speed controls coolant rate.
When water temperature sensor 1 detect coolant liquid temperature be more than -15 DEG C when, the first electronic water pump 6 by coolant liquid from dissipate
It extracts out in boiler 2, radiates to DC-DC4.Second electronic water pump 10 extracts coolant liquid out from cooling water tank 2, to driving motor
7 are cooled down.
When water temperature sensor 1 detects that coolant temperature is higher than its predetermined threshold value upper limit, such as coolant temperature is more than
Equal to 70 DEG C, control module 11 controls cooling fan 2 and starts to work, when water temperature sensor 1 detects that coolant temperature is less than it
When the predetermined threshold value upper limit, control module 11 controls cooling fan 2 and is stopped.
When one of driving motor temperature sensor 8 and water temperature sensor 1 detect coolant temperature higher than its alarm
When threshold value, control module 11 controls alarm lamp and lights, buzzer warning, reminds driver's automobile cooling circuit or driving
Motor is likely to occur failure, needs to overhaul.
Be presented above the utility model is related to specific implementation mode, by the way that unit to be cooled is assigned to two parallel connections
Branch in so that each unit to be cooled can be cooled down timely and effectively, ensure that the stable operation of system.It sets simultaneously
Setting heater makes automobile may be implemented to heat electrical components under cryogenic, the temperature of electrical components is promoted, to make
Pure electric automobile can also normally travel in extremely frigid zones.
But the utility model is not limited to described embodiment, such as changes the arrangement of cooling unit in every branch
Sequentially, either increase the equivalent change for reducing and switching the either quantity or type or water pump location of sensor, formed in this way
Technical solution is finely adjusted above-described embodiment to be formed, and this technical solution still falls within the scope of protection of the utility model
It is interior.
Claims (18)
1. a kind of electric vehicle power unit temperature control system, it is characterised in that：Include heat exchange branch with radiator, use
In with the first temperature control branch of DC-DC heat exchanges and for the second temperature control branch with driving motor heat exchange, first temperature
Control branch, the second temperature control branch and the heat exchange branch circuit parallel connection.
2. a kind of electric vehicle power unit temperature control system according to claim 1, it is characterised in that：It further include a connection
Branch, the first end of the connection branch connect the first temperature control branch, the second end connection of the connection branch described the
Two temperature control branches；The connection branch makes the radiator, DC-DC and driving motor constitute the first temperature control loop, described
In first temperature control loop, the pipe liquid flowed out from the radiator is followed by the DC-DC and driving motor.
3. a kind of electric vehicle power unit temperature control system according to claim 2, it is characterised in that：In first temperature control
The downstream of DC-DC described in branch, the first end connect the first temperature control branch by triple valve；In second temperature control
In branch, the upstream of the second end and the tie point of the second temperature control branch is provided with conducting switch.
4. according to a kind of electric vehicle power unit temperature control system described in Claims 2 or 3, it is characterised in that：It is handed in the heat
Change the downstream setting having heaters of radiator described in branch.
5. a kind of electric vehicle power unit temperature control system according to claim 4, it is characterised in that：In first temperature control
In branch, the first end and the upstream of the first temperature control branch tie point also carry out hot friendship with electric machine controller and charger
It changes.
6. a kind of electric vehicle power unit temperature control system according to claim 5, it is characterised in that：In first temperature control
In branch, the downstream of the first end and the first temperature control branch tie point includes the first water pump；In the second temperature control branch
The downstream of Lu Zhong, the second end and the second temperature control branch tie point includes the second water pump.
7. a kind of electric vehicle power unit temperature control system according to claim 6, it is characterised in that：Further include for detecting
The first flow sensor of first pump capacity；Second flow sensor for detecting the second pump capacity；For detecting
State the first temperature sensor of electric machine controller temperature；Second temperature sensor for detecting the driving motor temperature；With
In the water temperature sensor for detecting water temperature in pipeline.
8. a kind of electric vehicle power unit temperature control system according to claim 7, it is characterised in that：Further include controller,
The controller connect the water temperature sensor, radiator, heater, triple valve, conducting switch, the first temperature sensor,
Second temperature sensor, the first water pump, first flow sensor, the second water pump and second flow sensor.
9. a kind of electric vehicle power unit temperature control system according to claim 8, it is characterised in that：The controller also connects
Connect buzzer and alarm lamp.
10. a kind of vehicle based on power unit temperature control system, it is characterised in that：The temperature control system includes having radiator
Heat exchange branch, for DC-DC heat exchanges the first temperature control branch and for the second temperature control with driving motor heat exchange
Branch, the first temperature control branch, the second temperature control branch and the heat exchange branch circuit parallel connection.
11. a kind of vehicle based on power unit temperature control system according to claim 10, it is characterised in that：The temperature control system
System further includes a connection branch, and the first end of the connection branch connects the first temperature control branch, the connection branch
Second end connects the second temperature control branch；The connection branch makes the radiator, DC-DC and driving motor constitute first
Temperature control loop, in first temperature control loop, the pipe liquid flowed out from the radiator is followed by the DC-DC and driving
Motor.
12. according to a kind of vehicle based on power unit temperature control system described in claim 11, it is characterised in that：Described first
The downstream of DC-DC described in temperature control branch, the first end connect the first temperature control branch by triple valve；Described second
In temperature control branch, the upstream of the second end and the tie point of the second temperature control branch is provided with conducting switch.
13. according to a kind of vehicle based on power unit temperature control system of claim 11 or 12, it is characterised in that：Described
Having heaters is arranged in the downstream of radiator described in heat exchange branch.
14. according to a kind of vehicle based on power unit temperature control system described in claim 13, it is characterised in that：Described first
In temperature control branch, the first end and the upstream of the first temperature control branch tie point are also carried out with electric machine controller and charger
Heat exchange.
15. according to a kind of vehicle based on power unit temperature control system described in claim 14, it is characterised in that：Described first
In temperature control branch, the downstream of the first end and the first temperature control branch tie point includes the first water pump；In second temperature
It controls in branch, the downstream of the second end and the second temperature control branch tie point includes the second water pump.
16. according to a kind of vehicle based on power unit temperature control system described in claim 15, it is characterised in that：The temperature control system
System further includes the first flow sensor for detecting the first pump capacity；Second flow for detecting the second pump capacity passes
Sensor；The first temperature sensor for detecting the electric machine controller temperature；For detecting the driving motor temperature
Two temperature sensors；Water temperature sensor for detecting water temperature in pipeline.
17. according to a kind of vehicle based on power unit temperature control system described in claim 16, it is characterised in that：Further include control
Device, the controller connect the water temperature sensor, radiator, heater, triple valve, conducting switch, the first temperature sensing
Device, second temperature sensor, the first water pump, first flow sensor, the second water pump and second flow sensor.
18. according to a kind of vehicle based on power unit temperature control system described in claim 17, it is characterised in that：The controller
It is also connected with buzzer and alarm lamp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721308945.5U CN207859942U (en) | 2017-10-11 | 2017-10-11 | Electric vehicle power unit temperature control system and its vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721308945.5U CN207859942U (en) | 2017-10-11 | 2017-10-11 | Electric vehicle power unit temperature control system and its vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207859942U true CN207859942U (en) | 2018-09-14 |
Family
ID=63474384
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721308945.5U Expired - Fee Related CN207859942U (en) | 2017-10-11 | 2017-10-11 | Electric vehicle power unit temperature control system and its vehicle |
Country Status (1)
| Country | Link |
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| CN (1) | CN207859942U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109278497A (en) * | 2018-10-30 | 2019-01-29 | 广州小鹏汽车科技有限公司 | A kind of thermal management system of electric automobile and its control method and device |
| CN109649155A (en) * | 2017-10-11 | 2019-04-19 | 河南森源重工有限公司 | A kind of electric vehicle power unit temperature control system and its vehicle |
| CN112566443A (en) * | 2019-09-25 | 2021-03-26 | 华为技术有限公司 | Vehicle temperature control system |
-
2017
- 2017-10-11 CN CN201721308945.5U patent/CN207859942U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109649155A (en) * | 2017-10-11 | 2019-04-19 | 河南森源重工有限公司 | A kind of electric vehicle power unit temperature control system and its vehicle |
| CN109649155B (en) * | 2017-10-11 | 2024-05-31 | 河南森源重工有限公司 | Electric automobile power unit temperature control system and vehicle thereof |
| CN109278497A (en) * | 2018-10-30 | 2019-01-29 | 广州小鹏汽车科技有限公司 | A kind of thermal management system of electric automobile and its control method and device |
| CN112566443A (en) * | 2019-09-25 | 2021-03-26 | 华为技术有限公司 | Vehicle temperature control system |
| WO2021057060A1 (en) * | 2019-09-25 | 2021-04-01 | 华为技术有限公司 | Vehicle temperature control system |
| CN112566443B (en) * | 2019-09-25 | 2022-06-28 | 华为技术有限公司 | Vehicle temperature control system |
| JP2022549478A (en) * | 2019-09-25 | 2022-11-25 | 華為技術有限公司 | Vehicle temperature control system |
| JP7418557B2 (en) | 2019-09-25 | 2024-01-19 | 華為技術有限公司 | Vehicle temperature control system |
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Granted publication date: 20180914 |