CN105172522B - Hybrid vehicle heat management system - Google Patents

Hybrid vehicle heat management system Download PDF

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Publication number
CN105172522B
CN105172522B CN201510546565.4A CN201510546565A CN105172522B CN 105172522 B CN105172522 B CN 105172522B CN 201510546565 A CN201510546565 A CN 201510546565A CN 105172522 B CN105172522 B CN 105172522B
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temperature
oil
cooling
heating
management system
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CN201510546565.4A
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CN105172522A (en
Inventor
李晓明
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Chery Automobile Co Ltd
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SAIC Chery Automobile Co Ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60HARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00Heating, cooling or ventilating [HVAC] devices
    • B60H1/00642Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices

Abstract

Present invention is disclosed a kind of hybrid vehicle heat management system, including High-temperature cooling system, low-temperature cooling system, oil cooling system, auxiliary heating system, air-conditioning refrigeration system.The advantage of the invention is that the heat management system integrates High-temperature cooling, sub-cooled, oil cooling, auxiliary heating and refrigeration five big systemses, realize the independent control of each cooling circuit, while bottom line reduces mutually winning for each heat exchanger;Mutually compensated for during low temperature heating, realize the requirement of crew module's comfortableness rapidly.

Description

Hybrid vehicle heat management system
Technical field
The present invention relates to plug-in hybrid-power automobile heat management system technical field.
Background technology
In order to meet motor vehicle emission at present and in the future and CO2Laws and regulations requirement, plug-in hybrid-power automobile and orthodox car Need also exist for a set of efficient thermal management system of whole.The heat management system of orthodox car is generally only comprising engine cool, sky It is conventional to modulate cooling system and gearbox cooling etc., it is comparatively fairly simple, influenced each other between each heat exchanger smaller, but It is for plug-in hybrid-power automobile, not only needs cold to conventional engines, gearbox, and air-conditioning condenser progress But, it is also necessary to IPU and motor are cooled down, wherein IPU coolings are general to require that inflow temperature is not higher than 65 DEG C, belongs to low Temperature cooling, it is higher for heat exchange conditions require relatively conventional engine, and high/low temperature system influence each other it is larger;Simultaneously Under electric-only mode, engine is not actuated, crew module can not be heated using engine exhaust heat, now need by PTC heating systems provide heat for crew module, to solve the problems, such as occupant comfort.
The content of the invention
The technical problems to be solved by the invention are that plug-in hybrid-power automobile covers cooling system coupling and low temperature work more Crew module's heating comfortableness needs of problems under condition.
To achieve these goals, the technical solution adopted by the present invention is:Hybrid vehicle heat management system, including:
High-temperature cooling system:Including high temperature heat sink, engine, mechanical water pump, thermostat, expansion tank and circulation line;
Low-temperature cooling system:Including MCU, DC/DC, electronic water pump, fluid reservoir, low-temperature radiator and circulation line;
Air-conditioning refrigeration system:Including electronic compressor, condenser, expansion valve, evaporator and circulation line;
Hybrid vehicle heat management system also includes:
Oil cooling system:Air-cooled oil cooler is connected by oil cooling circulation line with gearbox engine oil passage, described oil cooling Circulation line is provided with temperature-sensing valve and mechanical oil pump;
Auxiliary heating system:The in-car heating pipeline of High-temperature cooling system is provided with PTC heaters, heats, institute State between the water inlet of PTC heaters and the delivery port of heats by the pipe provided with solenoid electric valve and electronic circulation pump Roadside leads to.
Described low-temperature radiator, oil cooler, condenser, high temperature heat sink and cooling fan is integrated to form front end cooling mould Block, described low-temperature radiator, high temperature heat sink and oil cooler are located at top, middle part and the bottom of front-end cooling module respectively, Described condenser is located at the both sides of front-end cooling module, and described cooling fan is located at the back side of front-end cooling module.
Engine cool uses water cooling, the described highest order positioned at High-temperature cooling system in described High-temperature cooling system Put, the lid of described expansion tank is provided with pressure valve and vacuum valve.
IPU coolings use water cooling in described low-temperature cooling system, and electronic water pump drives water in IPU, low-temperature radiator Constantly circulate, recirculated water takes IPU heat to radiator, and the fluid reservoir is in electronic water pump front end.
Mechanical oil pump driving oil is continuous in CVT gearboxes, motor, coupling mechanism, oil cooler in described oil cooling system Circulate, the open and close of the temperature control valve regulation oil cooled system system circulation, when temperature-sensing valve is closed, oil is recycled into speed change Case partial circulating state, improves rapidly organism temperature, and when temperature-sensing valve is opened, oil enters in oil cooler, carries out circulation temperature lowering.
In auxiliary heating system, when vehicle is in EV patterns, and opens heating operating mode, into PTC electric heating circulations, electricity Sub- water pump drives the water through PTC heaters and heated, and is sent in crew module's heat exchange core body, as vehicle source PHEV Pattern and engine start, circulated into engine heating, the water after the driving engine body heating of engine mechanical water pump leads to PTC heaters are crossed, and are sent in crew module's heat exchange core body, for air themperature in heating crew module.
It is described when vehicle source PHEV patterns and engine start, if generator speed is less than specified threshold, open Open PTC heaters.
The advantage of the invention is that the heat management system integrates High-temperature cooling, sub-cooled, oil cooling, auxiliary heating and refrigeration Five big systemses, realize the independent control of each cooling circuit, while bottom line reduces mutually winning for each heat exchanger;It is low Mutually compensated for during warm heating, realize the requirement of crew module's comfortableness rapidly.
Brief description of the drawings
The content of every width accompanying drawing expression in description of the invention is briefly described below:
Fig. 1 is hybrid vehicle heat management system schematic diagram;
Fig. 2 is electric-only mode PTC circulation theory figures;
Fig. 3 is PHEV pattern heating circulation schematic diagrams.
Embodiment
It is an object of the present invention to provide a kind of hybrid electric vehicle complete vehicle thermal management technology scheme, pass through heat management integrated technology Solves the demand that hybrid vehicle covers crew module's heating comfortableness under cooling system coupling and worst cold case more.It is above-mentioned to reach Purpose, the present invention use plug-in hybrid-power automobile heat management system integration principle as shown in Figure 1
As shown in figure 1, plug-in hybrid-power automobile heat management integrated system mainly forms:High-temperature cooling system, low temperature Cooling system, oil cooling system, auxiliary heating system, air-conditioning refrigeration system.Described in detail below for each system unit:
High-temperature cooling system
Engine high-temperature cooling system main parts size:High temperature heat sink, engine, mechanical water pump, thermostat, expansion Case, associated pipe.
System principle:Engine cool uses water cooling, and water pump driving water constantly circulates in engine and radiator, Recirculated water takes the heat of engine to high temperature heat sink.Radiator carries out heat exchange with the external world and then heat is scattered into air In, gas flowing is by the electrodeless fan of electronics and the natural wind of vehicle traveling.It is mounted with vehicle cooling system extreme higher position swollen Swell, it is easy to engine and radiator degasification, and pressure valve and vacuum is provided with to the moisturizing of engine water pump front end, expansion tank lid Valve, engine-cooling system is promoted to be in optimal pressure range all the time.
In order to promote engine temperature rise, there is provided economy increases thermostat in circulation line, and mechanical adjustment circulation is opened Open and close, when thermostat is closed, water circulation enters engine partial circulating state, organism temperature is improved rapidly, when temperature liter A high timing, thermostat will be opened, and water enters in radiator, carries out circulation temperature lowering.
Low-temperature cooling system
Low-temperature cooling system main parts size:MCU, DC/DC, electronic water pump, fluid reservoir, low-temperature radiator, associated pipe.
System principle:IPU coolings use water cooling, electric water pump driving water continuous recycle stream in IPU, low-temperature radiator Dynamic, recirculated water takes IPU heat to radiator, and radiator carries out heat exchange with the external world and then heat is scattered in air, gas The natural wind that body flowing travels by the electrodeless fan of electronics and vehicle.Fluid reservoir is installed in water pump front end, system is done moisturizing and Gas memory action.
Oil cooling system
Oil cooling system main parts size:Air-cooled oil cooler, temperature-sensing valve, oil pump, associated pipe.
System principle:CVT gearboxes, motor, coupling mechanism cooling use oil cooling, and mechanical oil pump driving oil is in CVT Constantly circulated in gearbox, motor, coupling mechanism, oil cooler, recycle oil is by motor, CVT gearboxes, coupling mechanism In heat take oil cooler to, oil cooler carries out heat exchange with the external world and then heat is scattered in air again, and gas flowing relies on The natural wind of the electrodeless cooling fan of electronics and vehicle traveling;
In order to promote CVT gearboxes, motor, coupling mechanism temperature rise, there is provided economy increases oil in circulation line Cold thermosistor, the open and close of mechanical adjustment circulation, when thermosistor is closed, oil is recycled into gearbox partial circulating state, Rapid to improve organism temperature, when the timing of temperature rise one, thermosistor will be opened, and oil enters in oil cooler, carries out circulation temperature lowering.
PTC auxiliary heating systems
Auxiliary heating system main parts size:PTC heaters, electronic circulation pump, crew module's heats, 2/3 electromagnetism Control valve, associated pipe;
System principle:System principle:When vehicle is in EV patterns, and opens heating operating mode, followed into PTC electrical heating Ring, electronic water pump drive the water through PTC and heated, and are sent in crew module's heat exchange core body, and (air blower drives air stream Heat exchange core body is crossed, air is conducted heat by heat exchange core body and is changed into hot-air) for air themperature in heating crew module, there is provided comfortableness, As shown in Figure 2.
When vehicle source PHEV patterns and engine start, into engine heating circulation, (PTC there may be auxiliary and add Heat), the water after the driving engine body heating of engine mechanical water pump (is optionally opened and heated) by PTC, and is sent to In crew module's heat exchange core body, for air themperature in heating crew module, there is provided comfortableness, as shown in Figure 3.
Air-conditioning refrigeration system
Air-conditioning refrigeration system main parts size:Electronic compressor, condenser, expansion valve, evaporator (are integrated in HVAC assemblies In), associated pipe etc.;
System principle:The refrigerant gas of electronic compressor flash-pot in future low-temp low-pressure, boil down to HTHP Refrigerant gas, then the refrigerant liquid for sending condenser to be cooled to medium temperature high pressure, flow through liquid storage drying bottle, by cooling load again Demand, by unnecessary liquid refrigerant storage, by dried refrigerant liquid in expansion valve reducing pressure by regulating flow, form droplet shape Refrigerant largely evaporates in evaporator, absorbed heat, make evaporator external temperature decline (air blower drives air stream pervaporation device, These air major part heat transfers are changed into cold air to evaporator, then deliver to in-car) for reducing air themperature in crew module, Comfortableness is provided.Refrigerant is sucked into compresser cylinder under the suction function of compressor inlet after heat absorption, and refrigerant is carried out Subsequent cycle.
Front-end cooling module arrangement
Front-end cooling module mainly includes:Low-temperature radiator, oil cooler, condenser, high temperature heat sink, thermantidote, its cloth Scheme is put, wherein low-temperature radiator, high temperature heat sink and oil cooler is located at top, middle part and the bottom of front-end cooling module respectively Portion, condenser are located at the both sides of front-end cooling module, and cooling fan is located at the back side of front-end cooling module.The arrangement, has Effect utilize fan maximum effective area, at the same also as far as possible reduction oil cooler and low-temperature radiator to condenser and high temperature heat sink Influence.

Claims (6)

1. hybrid vehicle heat management system, including:
High-temperature cooling system:Including high temperature heat sink, engine, mechanical water pump, thermostat, expansion tank and circulation line;
Low-temperature cooling system:Including MCU, DC/DC, electronic water pump, fluid reservoir, low-temperature radiator and circulation line;
Air-conditioning refrigeration system:Including electronic compressor, condenser, expansion valve, evaporator and circulation line;
It is characterized in that:Hybrid vehicle heat management system also includes:
Oil cooling system:Air-cooled oil cooler is connected by oil cooling circulation line with gearbox engine oil passage, described oil cooling circulation Pipeline is provided with temperature-sensing valve and mechanical oil pump;
Auxiliary heating system:The in-car heating pipeline of High-temperature cooling system is provided with PTC heaters, heats, the PTC Between the water inlet of heater and the delivery port of heats by the pipeline provided with solenoid electric valve and electronic circulation pump by It is logical;
Described low-temperature radiator, oil cooler, condenser, high temperature heat sink and cooling fan is integrated to form front-end cooling module, Described low-temperature radiator, high temperature heat sink and oil cooler is located at top, middle part and the bottom of front-end cooling module respectively, described Condenser be located at the both sides of front-end cooling module, described cooling fan is located at the back side of front-end cooling module.
2. hybrid vehicle heat management system according to claim 1, it is characterised in that:Described High-temperature cooling system Middle engine cool uses water cooling, and expansion tank is located at the extreme higher position of High-temperature cooling system, and the lid of described expansion tank is provided with Pressure valve and vacuum valve.
3. hybrid vehicle heat management system according to claim 1, it is characterised in that:Described low-temperature cooling system Middle IPU coolings use water cooling, and electronic water pump driving water constantly circulates in IPU, low-temperature radiator, and recirculated water is by IPU's Heat takes radiator to, and the fluid reservoir is in electronic water pump front end.
4. hybrid vehicle heat management system according to claim 1, it is characterised in that:Machine in described oil cooling system Tool oil pump driving oil constantly circulates in gearbox, motor, coupling mechanism, oil cooler, the temperature control valve regulation oil cooled system The open and close of system circulation, when temperature-sensing valve is closed, oil is recycled into gearbox partial circulating state, rapid to improve body temperature Degree, when temperature-sensing valve is opened, oil enters in oil cooler, carries out circulation temperature lowering.
5. hybrid vehicle heat management system according to claim 1, it is characterised in that:In auxiliary heating system, when Vehicle is in EV patterns, and during unlatching heating operating mode, into PTC electric heating circulations, electronic water pump drives the water through PTC heating dresses Put and heated, and be sent in crew module's heat exchange core body, when vehicle is in PHEV patterns and engine start, into starting Machine heating is circulated, and the water after the driving engine body heating of engine mechanical water pump is sent to and multiplied by PTC heater In the heat exchange core body of member cabin, for air themperature in heating crew module.
6. hybrid vehicle heat management system according to claim 5, it is characterised in that:It is described when vehicle is in When PHEV patterns and engine start, if generator speed is less than nominal threshold value, PTC heaters are opened.
CN201510546565.4A 2015-08-31 2015-08-31 Hybrid vehicle heat management system Active CN105172522B (en)

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Families Citing this family (7)

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Publication number Priority date Publication date Assignee Title
CN107650621A (en) * 2017-10-19 2018-02-02 汽-大众汽车有限公司 A kind of plug-in hybrid electric vehicle heat management system
CN107839432B (en) * 2017-11-28 2024-02-20 中国第一汽车股份有限公司 Whole vehicle thermal management system of plug-in hybrid electric vehicle
CN107839433B (en) * 2017-11-28 2024-02-23 中国第一汽车股份有限公司 Whole vehicle thermal management system of plug-in hybrid electric vehicle
CN108843440B (en) * 2018-05-30 2020-02-07 吉利汽车研究院(宁波)有限公司 Whole vehicle cooling system and method and vehicle
CN109344557B (en) * 2018-11-30 2021-06-15 安徽江淮汽车集团股份有限公司 Method and system for analyzing thermal performance of automobile
CN112098104B (en) * 2020-07-30 2022-03-29 东风汽车集团有限公司 Temperature control valve rack of thermal management system
CN114274727A (en) * 2021-11-29 2022-04-05 重庆长安汽车股份有限公司 Hybrid electric vehicle thermal management system and operation method

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DE102005047653B4 (en) * 2005-10-05 2021-08-19 Volkswagen Ag Hybrid drive unit with low temperature circuit
US9321479B2 (en) * 2007-11-28 2016-04-26 GM Global Technology Operations LLC Vehicle power steering waste heat recovery
FR2951114B1 (en) * 2009-10-13 2011-11-04 Peugeot Citroen Automobiles Sa COOLING DEVICE FOR A HYBRID VEHICLE
KR101316463B1 (en) * 2011-06-09 2013-10-08 현대자동차주식회사 Integrated Heat Management System in Vehicle and Heat Management Method thereof
CN103407346B (en) * 2013-08-30 2016-03-23 奇瑞新能源汽车技术有限公司 A kind of thermal management system of whole pure electric vehicle
CN104191933B (en) * 2014-09-18 2016-04-06 奇瑞新能源汽车技术有限公司 Hybrid vehicle heating management system

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