CN111546866A - Hybrid power system cooling and heating device - Google Patents

Hybrid power system cooling and heating device Download PDF

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Publication number
CN111546866A
CN111546866A CN202010301783.2A CN202010301783A CN111546866A CN 111546866 A CN111546866 A CN 111546866A CN 202010301783 A CN202010301783 A CN 202010301783A CN 111546866 A CN111546866 A CN 111546866A
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China
Prior art keywords
pipeline
loop
power battery
engine
communicated
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202010301783.2A
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Chinese (zh)
Inventor
王凯
潘世林
梅周盛
夏靖武
陈林
郑辉鹏
徐明华
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Hanteng Automobile Co Ltd
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Hanteng Automobile Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hanteng Automobile Co Ltd filed Critical Hanteng Automobile Co Ltd
Priority to CN202010301783.2A priority Critical patent/CN111546866A/en
Publication of CN111546866A publication Critical patent/CN111546866A/en
Pending legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K1/00—Arrangement or mounting of electrical propulsion units
    • 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
    • B60H1/22—Heating, cooling or ventilating [HVAC] devices the heat being derived otherwise than from the propulsion plant
    • B60H1/2215—Heating, cooling or ventilating [HVAC] devices the heat being derived otherwise than from the propulsion plant the heat being derived from electric heaters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K1/00—Arrangement or mounting of electrical propulsion units
    • B60K2001/003—Arrangement or mounting of electrical propulsion units with means for cooling the electrical propulsion units
    • B60K2001/006—Arrangement or mounting of electrical propulsion units with means for cooling the electrical propulsion units the electric motors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K1/00—Arrangement or mounting of electrical propulsion units
    • B60K2001/008—Arrangement or mounting of electrical propulsion units with means for heating the electrical propulsion units

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Hybrid Electric Vehicles (AREA)

Abstract

The invention discloses a cooling and heating device of a hybrid power system, which comprises a first loop, a second loop, a third loop, a fourth loop and an auxiliary water tank, wherein the first loop comprises a generator, one side of the generator is connected with a driving motor through a pipeline, one side of the driving motor is communicated with a first radiator through a pipeline, one side of the first radiator is communicated with a second water pump through a pipeline, a water outlet of the second water pump is connected with a motor controller through a pipeline, and one side of the motor controller is fixedly connected with the generator through a pipeline; the second loop comprises a power battery, one side of the power battery is communicated with a second radiator through a pipeline, one end of the second radiator is communicated with a first water pump through a pipeline, and the water outlet end of the first water pump is connected to the power battery through a pipeline.

Description

Hybrid power system cooling and heating device
Technical Field
The invention belongs to the technical field of hybrid electric vehicles, and particularly relates to a cooling and heating device of a hybrid power system.
Background
In recent years, the national emission requirements of vehicles and enterprises are increasingly strict, the environmental awareness and low-carbon consumption concept of the nation are increasingly enhanced, and the new energy automobile technology is also rapidly developed. However, due to the discharge characteristics of the battery, the self-discharge capability of the battery is greatly reduced at low temperatures. The new energy automobile originally faces the problem of insufficient endurance mileage, and the reduction of low-temperature discharge capacity makes the originally insufficient endurance mileage more visible. Even an electric vehicle adopting a hybrid system to improve the endurance mileage still faces the problem of the reduction of the endurance mileage under a low temperature condition.
Therefore, the hybrid power system cooling and heating device is provided to solve the problems in the prior art, improve the endurance mileage under the low-temperature condition and improve the low-temperature cold start performance of the engine to a certain extent.
Disclosure of Invention
The invention aims to provide a hybrid power system cooling and heating device to solve the problem of low endurance mileage under low temperature conditions in the prior art.
In order to achieve the purpose, the invention adopts the following technical scheme:
a cooling and heating device of a hybrid power system comprises a first loop, a second loop, a third loop, a fourth loop and an auxiliary water tank, wherein the first loop comprises a generator, one side of the generator is connected with a driving motor through a pipeline, one side of the driving motor is communicated with a first radiator through a pipeline, one side of the first radiator is communicated with a second water pump through a pipeline, a water outlet of the second water pump is connected with a motor controller through a pipeline, and one side of the motor controller is fixedly connected with the generator through a pipeline;
the second loop comprises a power battery, one side of the power battery is communicated with a second radiator through a pipeline, one end of the second radiator is communicated with a first water pump through a pipeline, and the water outlet end of the first water pump is connected to the power battery through a pipeline;
the third loop comprises an engine, the engine adopts an electronic thermostat, one side of the engine is communicated with a third radiator through a pipeline, one end of the third radiator is communicated with a fourth water pump through a pipeline, and the water outlet end of the fourth water pump is connected to the engine through a pipeline;
the fourth loop comprises an engine, one side of the engine is communicated with a PTC through a pipeline, one side of the PTC is communicated with a second reversing valve through a pipeline, a second outlet of the second reversing valve is connected to one side of a power battery through a pipeline, one side of the power battery is connected with a driver's cab air heater through a pipeline, one side of the driver's cab air heater is communicated with a first reversing valve through a pipeline, a second outlet of the first reversing valve is connected to the engine through a pipeline, a first outlet of the second reversing valve is connected to the driver's cab air heater through a pipeline, a first outlet of the first reversing valve is communicated with a third water pump through a passageway, and one end of a water outlet of the third water pump is connected to the PTC through a pipeline;
the water outlet end of the auxiliary water tank is communicated with the first loop through a one-way valve, the water outlet end of the auxiliary water tank is communicated with the second loop through a one-way valve, the water outlet end of the auxiliary water tank is communicated with the third loop through a one-way valve, and the water outlet end of the auxiliary water tank is communicated with the fourth loop through a one-way valve;
the pipeline of the first loop is communicated with a throttle valve through a one-way valve, the pipeline of the second loop is communicated with the throttle valve through the one-way valve, the pipeline of the third loop is communicated with the throttle valve through the one-way valve, one end of the throttle valve is communicated with a water inlet of the auxiliary water tank through a pipeline, and the pipeline of the fourth loop is communicated with the water inlet of the auxiliary water tank through the one-way valve.
Preferably, when the vehicle needs to be cooled under a high-temperature condition, the engine is located in a high-temperature loop, the generator, the motor controller, the power battery and the driving motor are located in a low-temperature loop, the engine drives the fourth water pump, and the first water pump and the second water pump are started to respectively cool the loops.
Preferably, if the cab needs to be heated, the first reversing valve is adjusted to the second outlet position, the second reversing valve is adjusted to the first outlet position, an electronic thermostat of the engine is started to be opened, and a warm air blower of the cab is started to heat the cab.
Preferably, under the low temperature condition, when power battery needs the heating, start the engine earlier and carry out the warm-up and heat the return circuit, later first switching valve adjusts to first exit position, second switching valve adjusts to second exit position, opens the third water pump, the generator is the fourth return circuit of PTC power supply heating, the fourth return circuit is power battery heating to avoid power battery low temperature to discharge.
Preferably, if the cab needs to be heated, the cab heater is turned on, and the fourth loop is used for heating the cab.
Preferably, when the vehicle runs under a low-temperature condition and the power battery is at a proper temperature but insufficient in electric quantity, the first reversing valve is adjusted to the second outlet position, the second reversing valve is adjusted to the first outlet position, an electronic thermostat of the engine is started to be started, the engine and the power battery are in the same loop, and the loop can be rapidly heated through self-discharge and PTC heating of the power battery, so that the low-temperature cold start performance of the engine is improved; and if the cab needs to be heated, starting a cab heater, and heating the cab by using the loop.
Preferably, when the temperature is high after the engine is normally started, one of the engine, the power battery and the PTC can be selected as a heating source by adjusting the first reversing valve and the second reversing valve, or the power battery and the PTC are jointly used as the heating source.
Preferably, when the vehicle runs under a low-temperature condition and the power battery is at a proper temperature and has sufficient electricity, the power battery maintains the temperature through self-discharge heating; if the cab needs to be heated, the first reversing valve is adjusted to the first outlet position, the second reversing valve is adjusted to the second outlet position, the third water pump is started to heat during driving, if necessary, the PTC is started to heat the loop, and at the moment, the position selected by the second reversing valve can be adjusted according to the temperature of the loop.
The invention has the technical effects and advantages that: compared with the prior art, the hybrid power system cooling and heating device provided by the invention has the following advantages:
1. under the condition of high temperature, the subsystems are cooled in respective cooling loops, under the condition of low temperature, an engine is started firstly when a vehicle is started, a reversing valve is adjusted after warming is completed, a generator supplies power to a PTC (positive temperature coefficient), a fourth loop is heated to enable the loops to be heated quickly, when the loop temperature is proper, the reversing valve is adjusted again, the loops are heated through the PTC to supply heat for a power battery, and therefore the power battery is heated quickly to the proper working temperature; when the temperature of the power battery is proper and the power battery needs to be charged, the loop is heated by self-discharging or supplying power to the PTC, and then the engine is started, so that the low-temperature cold start performance of the engine is improved;
2. at low temperature, the power battery heats the power battery to a proper working temperature through self-discharge or power supply for the PTC, so that the electric quantity of the power battery is greatly saved, and meanwhile, the damage of low-temperature discharge to the battery is eliminated.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic diagram of a first circuit according to the present invention;
FIG. 3 is a schematic diagram of a second circuit of the present invention;
FIG. 4 is a schematic diagram of a third circuit according to the present invention;
fig. 5 is a schematic structural diagram of a fourth circuit of the present invention.
In the figure: 1. a first circuit; 2. a second loop; 3. a third circuit; 4. a fourth loop; 5. an auxiliary water tank; 101. a generator; 102. a drive motor; 103. a first heat sink; 104. a second water pump; 105. a motor controller; 201. a power battery; 202. a second heat sink; 203. a first water pump; 301. an engine; 302. a third heat sink; 303. a fourth water pump; 401. a PTC; 402. a second directional control valve; 403. a driver's cab fan heater; 404. a first direction changing valve; 405. a third water pump; 6. a throttle valve.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. The specific embodiments described herein are merely illustrative of the invention and do not delimit the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention provides a hybrid power system cooling and heating device as shown in figures 1-5, which comprises a first loop 1, a second loop 2, a third loop 3, a fourth loop 4 and an auxiliary water tank 5, wherein the first loop 1 comprises a generator 101, one side of the generator 101 is connected with a driving motor 102 through a pipeline, one side of the driving motor 102 is communicated with a first radiator 103 through a pipeline, one side of the first radiator 103 is communicated with a second water pump 104 through a pipeline, a water outlet of the second water pump 104 is connected with a motor controller 105 through a pipeline, and one side of the motor controller 105 is fixedly connected with the generator 101 through a pipeline.
The second loop 2 comprises a power battery 201, one side of the power battery 201 is communicated with a second radiator 202 through a pipeline, one end of the second radiator 202 is communicated with a first water pump 203 through a pipeline, and the water outlet end of the first water pump 203 is connected to the power battery 201 through a pipeline;
the third loop 3 comprises an engine 301, the engine 301 adopts an electronic thermostat, one side of the engine 301 is communicated with a third radiator 302 through a pipeline, one end of the third radiator 302 is communicated with a fourth water pump 303 through a pipeline, and the water outlet end of the fourth water pump 303 is connected to the engine 301 through a pipeline;
the fourth loop 4 comprises an engine 301, one side of the engine 301 is communicated with a PTC401 through a pipeline, the PTC401 is a heater, one side of the PTC401 is communicated with a second reversing valve 402 through a pipeline, a second outlet of the second reversing valve 402 is connected to one side of the power battery 201 through a pipeline, one side of the power battery 201 is connected with a cab heater 403 through a pipeline, one side of the cab heater 403 is communicated with a first reversing valve 404 through a pipeline, a second outlet of the first reversing valve 404 is connected to the engine 301 through a pipeline, a first outlet of the second reversing valve 402 is connected to the cab heater 403 through a pipeline, a first outlet of the first reversing valve 404 is communicated with a third water pump 405 through a passageway, and one end of a water outlet of the third water pump 405 is connected to the PTC401 through a pipeline;
the water outlet end of the auxiliary water tank 5 is communicated with the first loop 1 through a one-way valve, the water outlet end of the auxiliary water tank 5 is communicated with the second loop 2 through a one-way valve, the water outlet end of the auxiliary water tank 5 is communicated with the third loop 3 through a one-way valve, and the water outlet end of the auxiliary water tank 5 is communicated with the fourth loop 4 through a one-way valve;
the pipeline of the first loop 1 is communicated with a throttle valve 6 through a one-way valve, the pipeline of the second loop 2 is communicated with the throttle valve 6 through the one-way valve, the pipeline of the third loop 3 is communicated with the throttle valve 6 through the one-way valve, one end of the throttle valve 6 is communicated with a water inlet of the auxiliary water tank 5 through a pipeline, and the pipeline of the fourth loop 4 is communicated with a water inlet of the auxiliary water tank 5 through the one-way valve.
When the vehicle needs cooling under high temperature conditions, the engine 301 is located in a high temperature loop, the generator 101, the motor controller 105, the power battery 201 and the driving motor 102 are located in a low temperature loop, the engine 301 drives the fourth water pump 303, and simultaneously the first water pump 203 and the second water pump 104 are started to respectively cool the loops.
If the cab needs to be heated, the first reversing valve 404 is adjusted to the second outlet position, the second reversing valve 402 is adjusted to the first outlet position, the electronic thermostat of the engine 301 is started to be opened, and the cab heater 403 is started to heat the cab.
Under the low temperature condition, when the power battery 201 needs to be heated, the engine 301 is started to warm up and heat the loop, then the first reversing valve 404 is adjusted to the first outlet position, the second reversing valve 402 is adjusted to the second outlet position, the third water pump 405 is started, the generator 101 supplies power to the PTC401 to heat the fourth loop 4, and the fourth loop 4 supplies heat to the power battery 201 to avoid the low-temperature discharge of the power battery 201.
If the cab needs to be heated, the cab heater 403 is turned on, and the fourth circuit 4 is used to heat the cab.
When the vehicle runs under a low-temperature condition and the power battery 201 is proper in temperature but insufficient in electric quantity, the first reversing valve 404 is adjusted to the second outlet position, the second reversing valve 402 is adjusted to the first outlet position, the electronic thermostat of the engine 301 is started to be started, the engine 301 and the power battery 201 are in the same loop, and at the moment, the loop can be rapidly heated through self-discharge of the power battery 201 and heating of the PTC401, so that the low-temperature cold start performance of the engine 301 is improved; if the cab needs to be heated, the cab heater 403 is turned on, and the cab is heated using this circuit.
When the temperature is high after the engine 301 is normally started, one of the engine 301, the power battery 201 and the PTC401 can be selected as a heating source by adjusting the first reversing valve 404 and the second reversing valve 402, or the power battery 201 and the PTC401 can be selected as a heating source together.
When the vehicle runs under low temperature and the temperature of the power battery 201 is appropriate and the electric quantity is sufficient, the power battery 201 maintains the temperature through self-discharge heating; if the cab needs heating, the first reversing valve 404 is adjusted to a first outlet position, the second reversing valve 402 is adjusted to a second outlet position, the third water pump 405 is started to heat during driving, if necessary, the PTC401 is started to heat the loop, and at the moment, the selected position of the second reversing valve 402 can be adjusted according to the loop temperature.
The working principle is as follows: under the low-temperature condition, when the vehicle is started, the engine 301 is started firstly, the reversing valve is adjusted after warming is completed, the generator 101 supplies power to the PTC401, the fourth loop 4 is heated to enable the loop to be heated rapidly, when the loop temperature is proper, the reversing valve is adjusted again, the loop is heated through the PTC401 to supply heat to the power battery 201, and therefore the power battery 201 is heated rapidly to the proper working temperature; when the temperature of the power battery 201 is proper and the power battery needs to be charged, the loop is heated by self-discharging or supplying power to the PTC401, and then the engine 301 is started, so that the low-temperature cold start performance of the engine 301 is improved; at low temperature, the power battery 201 heats itself to a proper working temperature through self-discharge or power supply for the PTC401, so that the electric quantity of the power battery 201 is greatly saved, and meanwhile, the damage of low-temperature discharge to the power battery 201 is eliminated.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims (8)

1. The utility model provides a hybrid system cooling and heating system, includes first return circuit (1), second return circuit (2), third return circuit (3), fourth return circuit (4) and expansion tank (5), its characterized in that:
the first loop (1) comprises a generator (101), one side of the generator (101) is connected with a driving motor (102) through a pipeline, one side of the driving motor (102) is communicated with a first radiator (103) through a pipeline, one side of the first radiator (103) is communicated with a second water pump (104) through a pipeline, a water outlet of the second water pump (104) is connected with a motor controller (105) through a pipeline, and one side of the motor controller (105) is fixedly connected to the generator (101) through a pipeline;
the second loop (2) comprises a power battery (201), one side of the power battery (201) is communicated with a second radiator (202) through a pipeline, one end of the second radiator (202) is communicated with a first water pump (203) through a pipeline, and the water outlet end of the first water pump (203) is connected to the power battery (201) through a pipeline;
the third loop (3) comprises an engine (301), the engine (301) adopts an electronic thermostat, one side of the engine (301) is communicated with a third radiator (302) through a pipeline, one end of the third radiator (302) is communicated with a fourth water pump (303) through a pipeline, and the water outlet end of the fourth water pump (303) is connected to the engine (301) through a pipeline;
the fourth circuit (4) comprises an engine (301), one side of the engine (301) is communicated with a PTC (401) through a pipeline, one side of the PTC (401) is communicated with a second reversing valve (402) through a pipeline, a second outlet of the second reversing valve (402) is connected to one side of the power battery (201) through a pipeline, one side of the power battery (201) is connected with a driver's cab warm air blower (403) through a pipeline, one side of the driver's cab warm air blower (403) is communicated with a first reversing valve (404) through a pipeline, the second outlet of the first reversing valve (404) is connected to an engine (301) through a pipeline, a first outlet of the second reversing valve (402) is connected with a cab warm air blower (403) through a pipeline, the first outlet of the first reversing valve (404) is communicated with a third water pump (405) through a passageway, one end of a water outlet of the third water pump (405) is connected to the PTC (401) through a pipeline;
the water outlet end of the auxiliary water tank (5) is communicated with the first loop (1) through a one-way valve, the water outlet end of the auxiliary water tank (5) is communicated with the second loop (2) through a one-way valve, the water outlet end of the auxiliary water tank (5) is communicated with the third loop (3) through a one-way valve, and the water outlet end of the auxiliary water tank (5) is communicated with the fourth loop (4) through a one-way valve;
the pipeline of first return circuit (1) has choke valve (6) through the check valve intercommunication, the pipeline of second return circuit (2) has choke valve (6) through the check valve intercommunication, the pipeline of third return circuit (3) has choke valve (6) through the check valve intercommunication, choke valve (6) one end is passed through the pipeline and is linked through the water inlet in auxiliary tank (5), the pipeline of fourth return circuit (4) is passed through the check valve and is linked through in auxiliary tank (5) water inlet.
2. The hybrid system cooling and heating apparatus according to claim 1, wherein: when the vehicle needs to be cooled under a high-temperature condition, the engine (301) is located in a high-temperature loop, the generator (101), the motor controller (105), the power battery (201) and the driving motor (102) are located in a low-temperature loop, the engine (301) drives the fourth water pump (303), and meanwhile the first water pump (203) and the second water pump (104) are started to respectively cool the loops.
3. The hybrid system cooling and heating apparatus according to claim 2, wherein: if the cab needs to be heated, the first reversing valve (404) is adjusted to the second outlet position, the second reversing valve (402) is adjusted to the first outlet position, an electronic thermostat of the engine (301) is started to be opened, and a warm air blower (403) of the cab is started to heat the cab.
4. The hybrid system cooling and heating apparatus according to claim 1, wherein: under the low temperature condition, when power battery (201) need heat, start engine (301) earlier and warm up and heat the return circuit, later first switching-over valve (404) are adjusted to first exit position, second switching-over valve (402) are adjusted to second exit position, open third water pump (405), generator (101) are PTC (401) power supply heating fourth return circuit (4), fourth return circuit (4) are power battery (201) heating to avoid power battery (201) low temperature to discharge.
5. The hybrid system cooling and heating apparatus according to claim 4, wherein: and if the cab needs to be heated, the cab heater (403) is started, and the fourth loop (4) is used for heating the cab.
6. The hybrid system cooling and heating apparatus according to claim 1, wherein: when the vehicle runs under a low-temperature condition, the temperature of the power battery (201) is proper but the electric quantity is insufficient, the first reversing valve (404) is adjusted to the second outlet position, the second reversing valve (402) is adjusted to the first outlet position, an electronic thermostat of the engine (301) is started, the engine (301) and the power battery (201) are in the same loop, and the loop can be rapidly heated through self-discharge of the power battery (201) and heating of the PTC (401), so that the low-temperature cold start performance of the engine (301) is improved; if the cab needs to be heated, a cab heater (403) is turned on, and the cab is heated by using the circuit.
7. The hybrid system cooling and heating apparatus according to claim 6, wherein: when the temperature is high after the engine (301) is normally started, one of the engine (301), the power battery (201) and the PTC (401) can be selected as a heating source by adjusting the first reversing valve (404) and the second reversing valve (402), or the power battery (201) and the PTC (401) are jointly used as the heating source.
8. The hybrid system cooling and heating apparatus according to claim 1, wherein: when the vehicle runs under a low-temperature condition, the temperature of the power battery (201) is proper and the electric quantity is sufficient, and the power battery (201) maintains the temperature through self-discharge heating; if the cab needs heating, the first reversing valve (404) is adjusted to a first outlet position, the second reversing valve (402) is adjusted to a second outlet position, the third water pump (405) is started to heat during driving, if necessary, the PTC (401) is started to heat the loop, and at the moment, the selected position of the second reversing valve (402) can be adjusted according to the loop temperature.
CN202010301783.2A 2020-04-16 2020-04-16 Hybrid power system cooling and heating device Pending CN111546866A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010301783.2A CN111546866A (en) 2020-04-16 2020-04-16 Hybrid power system cooling and heating device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010301783.2A CN111546866A (en) 2020-04-16 2020-04-16 Hybrid power system cooling and heating device

Publications (1)

Publication Number Publication Date
CN111546866A true CN111546866A (en) 2020-08-18

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ID=71996240

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010301783.2A Pending CN111546866A (en) 2020-04-16 2020-04-16 Hybrid power system cooling and heating device

Country Status (1)

Country Link
CN (1) CN111546866A (en)

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