CN113335020A - Hybrid bulldozer thermal management system - Google Patents
Hybrid bulldozer thermal management system Download PDFInfo
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- CN113335020A CN113335020A CN202110696509.4A CN202110696509A CN113335020A CN 113335020 A CN113335020 A CN 113335020A CN 202110696509 A CN202110696509 A CN 202110696509A CN 113335020 A CN113335020 A CN 113335020A
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- temperature
- warm air
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- water pump
- fan
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 85
- 238000001816 cooling Methods 0.000 claims abstract description 57
- 239000003507 refrigerant Substances 0.000 claims abstract description 14
- 239000000110 cooling liquid Substances 0.000 claims description 7
- 239000002826 coolant Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 8
- 238000010438 heat treatment Methods 0.000 description 5
- 238000004378 air conditioning Methods 0.000 description 4
- 230000001276 controlling effect Effects 0.000 description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- 238000007664 blowing Methods 0.000 description 3
- 230000005855 radiation Effects 0.000 description 3
- 238000005057 refrigeration Methods 0.000 description 3
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 2
- 230000002528 anti-freeze Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000005482 strain hardening Methods 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00271—HVAC devices specially adapted for particular vehicle parts or components and being connected to the vehicle HVAC unit
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00271—HVAC devices specially adapted for particular vehicle parts or components and being connected to the vehicle HVAC unit
- B60H1/00278—HVAC devices specially adapted for particular vehicle parts or components and being connected to the vehicle HVAC unit for the battery
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00357—Air-conditioning arrangements specially adapted for particular vehicles
- B60H1/00385—Air-conditioning arrangements specially adapted for particular vehicles for vehicles having an electrical drive, e.g. hybrid or fuel cell
- B60H1/004—Air-conditioning arrangements specially adapted for particular vehicles for vehicles having an electrical drive, e.g. hybrid or fuel cell for vehicles having a combustion engine and electric drive means, e.g. hybrid electric vehicles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/02—Heating, cooling or ventilating [HVAC] devices the heat being derived from the propulsion plant
- B60H1/04—Heating, cooling or ventilating [HVAC] devices the heat being derived from the propulsion plant from cooling liquid of the plant
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00271—HVAC devices specially adapted for particular vehicle parts or components and being connected to the vehicle HVAC unit
- B60H2001/00307—Component temperature regulation using a liquid flow
-
- 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
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/88—Optimized components or subsystems, e.g. lighting, actively controlled glasses
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Air-Conditioning For Vehicles (AREA)
Abstract
The invention relates to a thermal management system of a hybrid bulldozer, belonging to the field of hybrid engineering machinery and being characterized in that all the parts are connected to form: the first circulation of warm air: intercooler-three-way valve I-warm air evaporator-three-way valve II-engine-intercooler, or warm air cycle two: engine-warm air evaporator-engine; electric control cooling circulation of the motor: the system comprises a motor electric control unit, a motor electric control water cooling unit, an electronic water pump II and a motor electric control unit; cold air circulation: cold air evaporator-air conditioner condenser-water/refrigerant heat exchanger-cold air evaporator; battery cooling circulation: the system comprises a power battery, an electronic water pump I, a water/refrigerant heat exchanger, a battery water cooling unit and a power battery; the invention has more reasonable design and arrangement of all parts, higher energy utilization rate and obvious energy-saving effect.
Description
Technical Field
The invention relates to the field of hybrid engineering machinery, in particular to a thermal management system of a hybrid bulldozer.
Background
Hybrid engineering machinery is a trend in industry development, and a series hybrid mode or a parallel hybrid mode is often adopted. No matter which arrangement mode is adopted, the diesel engine, the motor electric control unit and the power battery unit are all elements which must be selected. Therefore, compared with the traditional diesel power engineering machinery and pure electric engineering machinery, the thermal management system is more complex and is a complex system with coupled multiple systems.
The temperature is a key factor for determining the operation quality of a motor electric control system and a power battery system, the discharge power and safety of the power battery can be influenced when the temperature of the power battery is too low, and the service life and stability of the power battery can be seriously influenced when the temperature is too high. The thermal management system is adopted to control the temperature of the power battery to be in the optimal temperature range, so that the endurance of the battery is improved, and the service life of the power battery is prolonged. The over-high temperature of the electric control system of the motor can cause the faults of thermal breakdown of a controller, damage of electronic elements, output limitation of the motor and the like. A good thermal management system is a complex system coupled with a plurality of systems and comprises a motor electric control and power battery thermal management system and a complete machine hydraulic system thermal management system.
In order to ensure the heat exchange efficiency, the motor electric control and the power battery both adopt long-acting antifreeze with the proportion of 50 percent of pure water and 50 percent of glycol as cooling media and adopt a forced cooling mode. The cooling medium and the element to be cooled realize heat exchange, and finally realize heat dissipation to the external environment through the air-cooled cooler. The hydraulic oil also dissipates heat to the environment through the air-cooled chiller. Because the temperature range of the power battery is strict, the traditional air cooling scheme can not meet the requirement, and therefore BTMS with higher commercialization degree is adopted for cooling. However, the BTMS system generally has a high cost, a small number of selectable specifications, and a large installation space requirement, and is not favorable for the design and arrangement of the whole vehicle.
Diesel engines require a necessary cooling system to cool the coolant and the intake air. Both working media are maintained in the appropriate temperature range. Deterioration of power performance, fuel economy, emission performance, and reliability is prevented.
The cooling and heating performance of the air conditioner is a key factor influencing the driving comfort of the equipment. The diesel engine power engineering machinery adopts diesel engine water jacket hot water as a warm air heat source. A traditional refrigeration system (comprising an air conditioner compressor, a condenser and an evaporator) is adopted as a cold air system. Although the water jacket hot water is adopted as a heat source, the cost is low, the temperature of the cooling liquid can not reach the target temperature for a long time under the extremely cold working condition, and the heating effect is seriously influenced.
The pure electric engineering machinery adopts a PTC heating system as an air conditioner warm air heat source, the system has quick response and good heating effect, but the electric quantity consumption is large, a vehicle-mounted power supply is consumed, and the cruising ability of the equipment can be reduced. An electric refrigeration system (comprising an electric air-conditioning compressor, a condenser and an evaporator) is used as a cold air system, and the cold air system can also consume the electric quantity of a vehicle-mounted power supply and reduce the cruising ability of equipment.
Disclosure of Invention
The invention aims to solve the technical problem of the prior art and provides a hybrid bulldozer heat management system with more reasonable design and arrangement of parts, higher energy utilization rate and obvious energy-saving effect.
The technical scheme for solving the technical problems is as follows: the utility model provides a hybrid bulldozer thermal management system, its characterized in that, includes intercooler, three-way valve I, warm braw evaporimeter, driver's cabin, cold wind evaporimeter, air conditioner condenser, electronic water pump I, water/refrigerant heat exchanger, power battery, battery water cooling unit, the automatically controlled water cooling unit of motor, the automatically controlled unit of motor, electronic water pump II, engine, three-way valve II, each part is connected and is formed following heat-cycle system:
the first circulation of warm air: an intercooler, a three-way valve I, a warm air evaporator, a three-way valve II, an engine and an intercooler,
or a second warm air circulation: engine-warm air evaporator-engine;
electric control cooling circulation of the motor: the system comprises a motor electric control unit, a motor electric control water cooling unit, an electronic water pump II and a motor electric control unit;
cold air circulation: cold air evaporator-air conditioner condenser-water/refrigerant heat exchanger-cold air evaporator;
battery cooling circulation: the system comprises a power battery, an electronic water pump I, a water/refrigerant heat exchanger, a battery water cooling unit and the power battery.
Furthermore, a temperature sensor is arranged at the inlet end of the warm air evaporator and used for collecting temperature data.
Further, the warm air evaporator and the cold air evaporator are arranged in the cab.
Furthermore, control switches of the two three-way valves in the first warm air circulation are electrically connected with the temperature sensor, when the temperature of the cooling liquid of the diesel engine is lower than a target value, the first warm air circulation is adopted, the two three-way valves are opened, and hot air of the intercooler is used as a warm air heat source; when the water temperature of the diesel engine reaches a target value, a second warm air circulation valve is adopted, the two-three valve is closed, and the hot cooling liquid of the diesel engine is used as a warm air heat source.
Furthermore, in the motor electric control cooling circulation, when the temperature of the motor electric control cooling system is lower than a first set value, the water pump does not rotate, and the fan does not rotate; when the temperature is higher than a first set value and lower than a second set value, the water pump and the fan start to rotate, and the positive correlation between the water pump rotating speed and the fan rotating speed and the temperature is set in the temperature interval; when the temperature is higher than the second set point, the fan pump is rotated at full speed.
Furthermore, in the battery cooling cycle, when the temperature of the battery cooling system is lower than a first set value, the water pump does not rotate, and the fan does not rotate; when the temperature is higher than a first set value and lower than a second set value, the water pump and the fan start to rotate, and the positive correlation between the water pump rotating speed and the fan rotating speed and the temperature is set in the temperature interval; when the temperature is higher than the second set point, the fan pump is rotated at full speed.
Furthermore, the battery water cooling unit and the electric control water cooling unit of the motor are integrally arranged, and the fan is independently controlled.
The invention has the beneficial effects that:
1. the warm air has double heat sources, a PTC heater is not used, the power supply of the whole vehicle is saved, meanwhile, the waste heat recovery can be realized, and the comprehensive heat efficiency of the engine is improved.
2. The battery is cooled and a refrigeration exchanger is added, and the battery is connected with an air conditioner condenser in series, so that a finished product BTMS system is not used, the cost is reduced, and the design and arrangement space is more abundant.
3. The battery cooling system is regulated and controlled by the water pump rotating speed, the air conditioner condenser fan rotating speed and the battery water cooling fan rotating speed, the control is accurate, and the energy-saving effect is obvious.
4. The battery water cooling and the motor electric control water cooling are integrated, the fan is controlled independently, the thermal interference of relevant parts of the engine is avoided, the control is accurate, and the energy-saving effect is obvious.
Drawings
FIG. 1 is a schematic structural view of the present invention;
in the figure: 1. an intercooler; 2. a three-way valve I; 3. a warm air evaporator; 4. a cab; 5. a cold air evaporator; 6. an air conditioning condenser; 7. an electronic water pump I; 8. a water/refrigerant heat exchanger; 9. a power battery; 10. a battery water cooling unit; 11. the motor is electrically controlled by the water cooling unit; 12. a motor electronic control unit; 13. an electronic water pump II; 14. an engine; 15. and a three-way valve II.
Detailed Description
The principles and features of this invention are described below in conjunction with examples which are set forth to illustrate, but are not to be construed to limit the scope of the invention.
As shown in FIG. 1, the thermal management system for a hybrid bulldozer of the present embodiment comprises
An intercooler 1: an aluminum plate-fin radiator is commonly used for cooling the air inlet of an engine, and is provided with an independent electronic fan, and the heat radiation performance is adjusted by controlling the opening and closing of the fan and the rotating speed.
Two three-way valves (electronic type), three-way valve I2 and three-way valve II 15 respectively: the opening and closing of the circulation path are controlled.
The warm air evaporator 3: the interior is a high-temperature medium provided by a heat source, the exterior is a blowing fan, and the warm air evaporator 3 is arranged in the cab 4 and provides warm air for the cab; the inlet end of the warm air evaporator 3 is provided with a temperature sensor for collecting temperature data.
The cab 4: the engineering machinery is a main part of the driving environment and has the functions of sealing, sound insulation and the like.
Cold air evaporator 5: the interior is low temperature medium, the exterior is a blowing fan, and the cold air evaporator 5 is arranged in the cab 4 and provides cold air for the cab.
An air-conditioning condenser 6: the refrigerant radiating element is integrated with an electronic fan, blowing air is carried out for forced cooling, and the refrigerating effect can be adjusted by controlling the opening and closing of the electronic fan and the rotating speed.
Two electronic water pumps are electronic water pump I7 and electronic water pump II 13 respectively: the vehicle-mounted low-voltage power supply drives the battery water cooling unit 10 and the motor electric control water cooling unit 11 to provide cooling circulating power respectively, and the rotating speed can be controlled to adjust the circulating flow.
Water/refrigerant exchanger 8: the heat exchange between the cooling liquid and the refrigerant is realized, the circulating water temperature is reduced to be lower than the ambient temperature, and the cooling effect of the battery is ensured.
Battery water-cooling unit 10: the aluminum plate-fin radiator integrates an independent electronic fan, and the heat radiation performance is adjusted by controlling the opening and closing of the fan and the rotating speed.
The electric control water cooling unit 11 of the motor: the aluminum plate-fin radiator is integrated with an independent electronic fan, and the heat radiation performance is adjusted by controlling the opening and closing of the fan and the rotating speed;
the battery water cooling unit 10 and the motor electric control water cooling unit 11 are integrally arranged, and the fan is independently controlled;
and a power battery 9, a motor electronic control unit 12 and an engine 14.
The components are connected to form the following heat cycle system:
the first circulation of warm air: an intercooler 1, a three-way valve I2, a warm air evaporator 3, a three-way valve II 15, an engine 14 and the intercooler 1,
or a second warm air circulation: the engine 14-the warm air evaporator 3-the engine 14;
in the initial stage of starting an extremely cold environment or a diesel engine, the temperature of the cooling liquid of the diesel engine cannot meet the heating requirement (the temperature sensor at the inlet end of a warm air evaporator collects data), and two three-way valves are opened to use the hot air before inter-cooling as a warm air heat source. When the water temperature of the diesel engine reaches a target value, the three-way valve is closed, and the hot cooling liquid of the diesel engine is used as a hot air heat source.
Electric control cooling circulation of the motor: the system comprises a motor electric control unit 12, a motor electric control water cooling unit 11 (fan switch/rotating speed control), an electronic water pump II 13 (water pump rotating speed control), and a motor electric control unit 12; when the temperature of the electric control cooling system of the motor is lower than a first set value, the water pump does not rotate, and the fan does not rotate; when the temperature is higher than a first set value and lower than a second set value, the water pump and the fan start to rotate, and the positive correlation between the water pump rotating speed and the fan rotating speed and the temperature is set in the temperature interval; when the temperature is higher than the second set point, the fan pump is rotated at full speed.
Cold air circulation: cold-air evaporator 5-air-conditioning condenser 6 (fan on/off/speed control) -water/refrigerant heat exchanger 8-cold-air evaporator 5;
battery cooling circulation: a power battery 9, an electronic water pump I7 (water pump switch/rotating speed control), a water/refrigerant heat exchanger 8, a battery water cooling unit 10 (fan switch/rotating speed control) and a power battery 9; when the temperature of the battery cooling system is lower than a first set value, the water pump does not rotate, and the fan does not rotate; when the temperature is higher than a first set value and lower than a second set value, the water pump and the fan start to rotate, and the positive correlation between the water pump rotating speed and the fan rotating speed and the temperature is set in the temperature interval; when the temperature is higher than the second set point, the fan pump is rotated at full speed.
Claims (7)
1. The utility model provides a hybrid bulldozer thermal management system, which comprises an intercooler (1), three-way valve I (2), warm air evaporimeter (3), driver's cabin (4), cold wind evaporimeter (5), air conditioner condenser (6), electronic water pump I (7), water/refrigerant heat exchanger (8), power battery (9), battery water cooling unit (10), the automatically controlled water cooling unit of motor (11), the automatically controlled unit of motor (12), electronic water pump II (13), engine (14), three-way valve II (15), each part is connected and is formed as following heat-cycle system:
the first circulation of warm air: an intercooler (1), a three-way valve I (2), a warm air evaporator (3), a three-way valve II (15), an engine (14) and the intercooler (1),
or a second warm air circulation: engine (14) -warm air evaporator (3) -engine (14);
electric control cooling circulation of the motor: the device comprises a motor electric control unit (12), a motor electric control water cooling unit (11), an electronic water pump II (13) and a motor electric control unit (12);
cold air circulation: a cold air evaporator (5), an air conditioner condenser (6), a water/refrigerant heat exchanger (8) and a cold air evaporator (5);
battery cooling circulation: the system comprises a power battery (9), an electronic water pump I (7), a water/refrigerant heat exchanger (8), a battery water cooling unit (10) and the power battery (9).
2. The hybrid bulldozer thermal management system according to claim 1, characterised in that a temperature sensor is provided at the inlet end of said warm air evaporator (3) for collecting temperature data.
3. Hybrid bulldozer thermal management system according to claim 1, characterised in that said warm air evaporator (3) and cold air evaporator (5) are arranged in the cab (4).
4. The hybrid bulldozer heat management system according to claim 2, wherein control switches of the two three-way valves in the first warm air cycle are electrically connected to the temperature sensor, and when the temperature of the diesel engine coolant is lower than a target value, the first warm air cycle is adopted, the two three-way valves are opened, and hot air in the intercooler (1) is used as a warm air heat source; when the water temperature of the diesel engine reaches a target value, a second warm air circulation valve is adopted, the two-three valve is closed, and the hot cooling liquid of the diesel engine is used as a warm air heat source.
5. The hybrid bulldozer heat management system according to claim 1, wherein in said motor electrically controlled cooling cycle, when a temperature of the motor electrically controlled cooling system is lower than a first set value, the water pump is not rotated and the fan is not rotated; when the temperature is higher than a first set value and lower than a second set value, the water pump and the fan start to rotate, and the positive correlation between the water pump rotating speed and the fan rotating speed and the temperature is set in the temperature interval; when the temperature is higher than the second set point, the fan pump is rotated at full speed.
6. The hybrid bulldozer heat management system according to claim 1, in which, in said battery cooling cycle, when the temperature of the battery cooling system is lower than a first set value, the water pump is not rotated and the fan is not rotated; when the temperature is higher than a first set value and lower than a second set value, the water pump and the fan start to rotate, and the positive correlation between the water pump rotating speed and the fan rotating speed and the temperature is set in the temperature interval; when the temperature is higher than the second set point, the fan pump is rotated at full speed.
7. The hybrid bulldozer heat management system according to claim 1, characterised in that said battery water cooling unit (10) is integrated with an electric motor electronically controlled water cooling unit (11), with independent fan control.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110696509.4A CN113335020A (en) | 2021-06-23 | 2021-06-23 | Hybrid bulldozer thermal management system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110696509.4A CN113335020A (en) | 2021-06-23 | 2021-06-23 | Hybrid bulldozer thermal management system |
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| Publication Number | Publication Date |
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| CN113335020A true CN113335020A (en) | 2021-09-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110696509.4A Pending CN113335020A (en) | 2021-06-23 | 2021-06-23 | Hybrid bulldozer thermal management system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115288840A (en) * | 2022-06-20 | 2022-11-04 | 山推工程机械股份有限公司 | Novel heat management system of bulldozer based on heat pipe |
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| CN102941791A (en) * | 2012-11-08 | 2013-02-27 | 上海汽车集团股份有限公司 | Integrated thermal cycling system of electric vehicle |
| JP2014005759A (en) * | 2012-06-22 | 2014-01-16 | Toyota Motor Corp | Heating device for vehicle |
| CN109849616A (en) * | 2019-02-20 | 2019-06-07 | 苏州同捷汽车工程技术股份有限公司 | Thermal management system of electric automobile |
| CN212612705U (en) * | 2020-06-19 | 2021-02-26 | 山推工程机械股份有限公司 | Electronic bull-dozer cooling system and electronic bull-dozer |
| CN214822469U (en) * | 2021-06-23 | 2021-11-23 | 山推工程机械股份有限公司 | Hybrid bulldozer thermal management system |
-
2021
- 2021-06-23 CN CN202110696509.4A patent/CN113335020A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014005759A (en) * | 2012-06-22 | 2014-01-16 | Toyota Motor Corp | Heating device for vehicle |
| CN102941791A (en) * | 2012-11-08 | 2013-02-27 | 上海汽车集团股份有限公司 | Integrated thermal cycling system of electric vehicle |
| CN109849616A (en) * | 2019-02-20 | 2019-06-07 | 苏州同捷汽车工程技术股份有限公司 | Thermal management system of electric automobile |
| CN212612705U (en) * | 2020-06-19 | 2021-02-26 | 山推工程机械股份有限公司 | Electronic bull-dozer cooling system and electronic bull-dozer |
| CN214822469U (en) * | 2021-06-23 | 2021-11-23 | 山推工程机械股份有限公司 | Hybrid bulldozer thermal management system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115288840A (en) * | 2022-06-20 | 2022-11-04 | 山推工程机械股份有限公司 | Novel heat management system of bulldozer based on heat pipe |
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