CN207433190U - The thermal management system of whole of plug-in hybrid-power automobile - Google Patents

The thermal management system of whole of plug-in hybrid-power automobile Download PDF

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Publication number
CN207433190U
CN207433190U CN201721613190.XU CN201721613190U CN207433190U CN 207433190 U CN207433190 U CN 207433190U CN 201721613190 U CN201721613190 U CN 201721613190U CN 207433190 U CN207433190 U CN 207433190U
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cooling
coolant inlet
battery
liquid outlet
water pump
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王艳薇
江国华
于长虹
田承伟
李大鹏
张行
钱皓
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FAW Group Corp
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FAW Group Corp
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/10Internal combustion engine [ICE] based vehicles
    • Y02T10/12Improving ICE efficiencies

Abstract

The utility model discloses a kind of thermal management system of whole of plug-in hybrid-power automobile, including High-temperature cooling system, medium temperature cooling system, low-temperature cooling system, battery cooling system and air-conditioning system.The thermal management system of whole of this plug-in hybrid-power automobile, it is designed according to the caloric value and cooling requirement of different components, each component is avoided to influence each other, meet high request of each component to temperature in use, ensure the function and performance of each component, improve service life and the efficiency of each component;The heat management system of power battery and air-conditioning system are integrated, reach the peak use rate of vehicle thermal environment resource;When having warm wind demand under pure electric vehicle operating mode, engine exhaust heat and speed changer heat are made full use of, while using ptc heater, reduces engine frequent starting, promotes vehicle energy saving, the feature of environmental protection and comfort;Is improved by startup performance of engine, effectively promotes vehicle economy and emission performance for engine prewarming using speed changer fever under pure electric vehicle operating mode.

Description

The thermal management system of whole of plug-in hybrid-power automobile
Technical field
The utility model belongs to the whole of hybrid electric vehicle field of heat management more particularly to a kind of plug-in hybrid-power automobile Vehicle heat management system.
Background technology
Water-cooled power battery plug-in hybrid electric vehicle heat management system increases on the basis of traditional vehicle heat management system Motor, electric machine controller, battery, the cooling requirement of charger and DCDC, heat management system inner part caloric value is different, and right Coolant temperature requirement difference is larger, and engine and the requirement of speed changer coolant temperature are generally at 95 DEG C or more, charge air cooler and whirlpool The requirement of booster coolant temperature is taken turns generally between 75~90 DEG C, the requirement of motor coolant is generally below 70 DEG C, motor control Generally less than 65 DEG C, battery coolant temperature is required generally 18~25 for device processed, charger and the requirement of DCDC coolant temperatures DEG C, it is necessary to realize that each component independently cools down, each component is avoided to influence each other, meets high request of each component to temperature in use, is protected The function and performance of each component are demonstrate,proved, improves service life and the efficiency of each component.
The heat management system and its controlling party of a kind of hybrid electric vehicle are disclosed in patent document 1 (CN102951012A) Method.The heat management system includes motor radiator, feed unit, power electric device, electric-motor drive unit, engine radiating Device, engine and air-conditioning system, motor radiator, feed unit, power electric device and electric-motor drive unit pass through first Pipeline is sequentially connected and electric-motor drive unit is connected to by the second pipeline on motor radiator to form first circulation circuit, hair Motivation radiator, engine and air-conditioning system are sequentially connected by the 3rd pipeline and air-conditioning system, engine and engine dissipate Hot device is sequentially connected to form second circulation circuit by the 4th pipeline, the first bye-pass is equipped on the second pipeline and positioned at it Second bye-pass in downstream, the connection second of the first bye-pass and the 3rd pipeline, the connection second of the second bye-pass and the 4th pipeline.From And it solves the problems, such as to carry out more effective heat management to engine and electric device.
A kind of hybrid vehicle heat management system is disclosed in patent document 2 (CN102092272A), it is cold including high temperature But system, low-temperature cooling system, oil cooling system, auxiliary heating system, air-conditioning refrigeration system.The utility model has the advantage of this Heat management system integrates High-temperature cooling, sub-cooled, oil cooling, auxiliary heating and refrigeration five big systems, realizes each cooling circuit Independent control, while bottom line reduces influencing each other for each heat exchanger;It is mutually compensated for during low temperature heating, it is rapid to realize The requirement of crew module's comfort.
A kind of heat management system for hybrid vehicle is proposed in patent document 3 (CN203651447U), mixing is dynamic Power automobile includes motor power system and engine power system, includes for the heat management system of hybrid vehicle:First Water pump;First control valve;Second water pump;3rd water pump;Primary heater;Secondary heater and controller.The utility model can By controlling the first water pump, the second water pump, the 3rd water pump and the first control valve so that primary heater carries out battery subsystem Heating, and heated when engine works using the residual temperature of engine cooling water to battery subsystem, ensure battery in low temperature Under performance.At the same time it can also engine water not utilized to cycle, without starting engine, it ensure that hybrid vehicle pure Energy saving under electronic operating mode improves the energy saving and the feature of environmental protection of hybrid vehicle.
For system disclosed in patent document 1, battery pack, speed changer, charger, DCDC are not integrated in system It is interior, also air-conditioning refrigeration system is not integrated in interior;The caloric value of motor and electric machine controller is utilized during pure motor driving simultaneously Warm wind is provided and is heated for engine, since motor and electric machine controller caloric value are limited, to reducing engine frequent starting, drop It is limited that low stain object discharges and improve oil consumption contribution.For system disclosed in patent document 2, in system not by battery pack, In charger and DCDC are integrated in;Simultaneously during pure motor driving, engine exhaust heat and internal system part caloric value is not utilized to carry Providing warm air, resource does not utilize fully in system;It is not engine heating, during engine start and during pure motor driving Economy and emission performance do not improve.For system disclosed in patent document 3, speed changer is not integrated in system It is interior, while be not integrated in charger and DCDC in its battery cooling circuit interior;Simultaneously during pure motor driving, system is not utilized The inner part caloric value of uniting provides warm wind, and resource does not utilize fully in system, cause engine frequent starting, oil consumption increase and Pollutant emission increases;It is not engine heating and during pure motor driving, economy and emission performance during engine start Do not improve.
At present, the air-conditioning system of existing hybrid vehicle, power battery thermal management system be all generally each it is independent, It is few to integrate the heat management system of power battery and air-conditioning system, so cause thermal management system of whole effect Rate is relatively low, is not reaching to the peak use rate of vehicle thermal environment resource.
Existing hybrid vehicle generally when pure electric vehicle operating mode downward driving has warm wind demand, does not make full use of engine The heat of waste heat and other heat generating components, is not reaching to the peak use rate of heat management resource, it is necessary to start engine, causes to send out Motivation frequent starting increases oil consumption, and pollutant discharge amount increases, and can not take into account the energy saving, the feature of environmental protection and comfort of vehicle.
Existing hybrid vehicle is under pure electric vehicle operating mode, when engine down time is longer, the temperature of engine coolant Degree can reduce, and the heat without the utmostly fully other heat generating components of profit is engine prewarming, is not reaching to heat management resource Peak use rate, lubricating oil viscosity is relatively low when engine restarts, and frictional resistance is excessive, and distributive value increases, and influences whole Vehicle economy and emission performance.
Therefore, it is necessary to improved technical solution is proposed to overcome technical problem in the prior art.
Utility model content
The utility model aim is to propose a kind of thermal management system of whole of plug-in hybrid-power automobile, by High-temperature cooling System, medium temperature cooling system, low-temperature cooling system, battery cooling system and air-conditioning system are integrated into an entirety.Pass through this The heat management system that utility model proposes, avoids each component from influencing each other, meets high request of each component to temperature in use, ensures The function and performance of each component improve service life and the efficiency of each component;By the heat management system of power battery and air-conditioning system collection Into together, thermal management system of whole efficiency is improved, reaches the peak use rate of vehicle thermal environment resource;Under pure electric vehicle operating mode When traveling has warm wind demand, the heat of engine exhaust heat and speed changer is made full use of, while using ptc heater, reduction is started Machine frequent starting promotes the energy saving, the feature of environmental protection and comfort of vehicle;Under pure electric vehicle operating mode, generated heat using speed changer to starting Machine is preheated, and is improved startup performance of engine, is effectively promoted vehicle economy and emission performance.
The utility model solves technical problem and adopts the following technical scheme that:A kind of vehicle heat of plug-in hybrid-power automobile Management system, including High-temperature cooling system, medium temperature cooling system, low-temperature cooling system, battery cooling system and air-conditioning system;
It is cold that the High-temperature cooling system includes high temperature heat sink, mechanical water pump, engine, speed changer heat exchanger, machine oil But device, high-temperature water pump and indoor warm air radiator;
The coolant inlet of the mechanical water pump is connected with the cooling liquid outlet of the high temperature heat sink, the mechanical water pump Cooling liquid outlet connected with the coolant inlet of engine, the cooling liquid outlet of the engine and the high temperature heat sink Coolant inlet connects;Coolant of the cooling liquid outlet of the cooling line of the engine also with the speed changer heat exchanger Entrance connects, and the cooling liquid outlet of the speed changer heat exchanger is connected with the coolant inlet of the oil cooler, described The coolant inlet of oil cooler is connected with the coolant inlet of the high-temperature water pump, the cooling liquid outlet of the high-temperature water pump It is connected with the coolant inlet of the indoor warm air radiator, the coolant inlet of the interior warm air radiator and the machinery The coolant inlet connection of water pump;
The medium temperature cooling system includes middle temperature radiator, middle warm water pump, charge air cooler and turbocharger;
The cooling liquid outlet of the middle temperature radiator is connected with the coolant inlet of the middle warm water pump, the middle warm water pump Cooling liquid outlet connected with the coolant inlet of the charge air cooler, the cooling liquid outlet of the charge air cooler and the medium temperature radiate The coolant inlet connection of device;The cooling liquid outlet of the middle warm water pump is also connected with the coolant inlet of turbocharger, institute The cooling liquid outlet for stating turbocharger is connected with the coolant inlet of the middle temperature radiator;
The low-temperature cooling system includes low-temperature radiator, electric machine controller, low temperature water pump and motor;
The cooling liquid outlet of the low-temperature radiator is connected to the coolant inlet of the electric machine controller, the motor control The cooling liquid outlet of device processed is connected to the coolant inlet of the low temperature water pump, and the cooling liquid outlet of the low temperature water pump is connected to The coolant inlet of the motor, the cooling liquid outlet of the motor are connected to the coolant inlet of the low-temperature radiator;
The battery cooling system include battery cooling heat exchanger, battery water pump, power battery, DCDC, charger and Battery cools down expansion valve;
The cooling liquid outlet of the battery water pump is connected to the coolant inlet of the power battery, the power battery Cooling liquid outlet is connected to the coolant inlet of the DCDC, the coolant of the cooling liquid outlet of the DCDC and the charger Entrance connects, and the cooling liquid outlet of the charger is connected with the coolant inlet of battery cooling heat exchanger, the electricity The cooling liquid outlet of pond cooling heat exchanger is connected with the coolant inlet of the battery water pump, and the battery cools down heat exchanger Coolant inlet connected with cooling liquid outlet;The air-conditioning system includes air conditioner refrigerating expansion valve, evaporator, wind and warms up PTC, electricity Dynamic compressor of air conditioner and condenser;
The refrigerant outlet of the electric air-conditioning compressor is connected with the refrigerant inlet of the condenser, the condenser Refrigerant outlet and the air conditioner refrigerating expansion valve and battery cooling expansion valve connect, the air conditioner refrigerating expansion valve and institute The refrigerant inlet connection of evaporator is stated, the refrigerant outlet of the evaporator and the refrigerant of the electric air-conditioning compressor enter Mouth connection;Refrigerant inlet of the battery cooling expansion valve also with battery cooling heat exchanger connects, and the battery is cold But the refrigerant outlet of heat exchanger is connected with the refrigerant inlet of the electric air-conditioning compressor;The wind warms up PTC in air-conditioning Auxiliary heating is carried out when heating circulating-heating amount is low.
Optionally, the speed changer heat exchanger is the heat exchanger of oil cooling double-clutch speed changer.
Optionally, the charge air cooler is water-cooled charge air cooler.
Optionally, the motor is water cooled machine.
Optionally, the power battery is water-cooled power battery.
Optionally, the wind warms up PTC and warms up PTC for low-pressure air.
Optionally, the thermal management system of whole of the plug-in hybrid-power automobile further includes expansion tank, the expansion Coolant of the coolant inlet of water tank respectively with the cooling liquid outlet of the turbocharger, the indoor warm air radiator enters Mouthful connected with the cooling liquid outlet of the electric machine controller, the cooling liquid outlet of the expansion tank respectively with the mechanical water pump Coolant inlet, the connection of the coolant inlet of the coolant inlet of the medium temperature electric water pump and the low temperature water pump.
Optionally, the thermal management system of whole of the plug-in hybrid-power automobile further includes battery cooling expansion tank, The cooling liquid outlet of the battery cooling expansion tank is connected with the coolant inlet of the battery water pump, and the battery cooling is swollen The coolant inlet of swollen water tank is connected with the cooling liquid outlet of battery cooling heat exchanger.
The utility model has the advantages that:The vehicle heat management of the plug-in hybrid-power automobile of the utility model System is designed according to the caloric value and cooling requirement of different components, each component is avoided to influence each other, and meets each component to making With the high request of temperature, ensure the function and performance of each component, improve service life and the efficiency of each component;By the heat pipe of power battery Reason system and air-conditioning system integrate, and improve thermal management system of whole efficiency, reach the maximum profit of vehicle thermal environment resource With rate;When pure electric vehicle operating mode downward driving has warm wind demand, the heat of engine exhaust heat and speed changer is made full use of, is applied simultaneously Ptc heater reduces engine frequent starting, promotes the energy saving, the feature of environmental protection and comfort of vehicle;Under pure electric vehicle operating mode, profit Engine is preheated with speed changer fever, improves startup performance of engine, effectively promotes vehicle economy and emission performance.
Description of the drawings
Fig. 1 is the structure diagram of the thermal management system of whole of the plug-in hybrid-power automobile of the utility model;
Fig. 2 is the structure diagram of the High-temperature cooling system of the utility model;
Fig. 3 is the structure diagram of the medium temperature cooling system of the utility model;
Fig. 4 is the structure diagram of the low-temperature cooling system of the utility model;
Fig. 5 is the structure diagram of the battery cooling system of the utility model;
Fig. 6 is the structure diagram of the air-conditioning system of the utility model;
Fig. 7 is the structure diagram of the heating Xun Huan of the air-conditioning system of the utility model;
The mark in the figure shows:1- low-temperature radiators;2- electric machine controllers;3- low temperature water pumps;4- motors;5- medium temperatures radiate Device;Warm water pump in 6-;7- charge air coolers;8- turbines increase device;9- high temperature heat sinks;10- mechanical water pumps;11- engines;12- becomes Fast device heat exchanger;13- oil cooler;14- high-temperature water pumps;Warm air radiator in 15- rooms;16- expansion tanks;17- batteries Cool down heat exchanger;18- battery water pumps;19- power batteries;20-DCDC;21- chargers;22- batteries cool down expansion valve;23- Air conditioner refrigerating expansion valve;24- evaporators;25- wind warms up PTC;26- electric air-conditioning compressors;27- condensers;The cooling of 28- batteries is swollen Swollen water tank.
Specific embodiment
The technical solution of the utility model is further elaborated with reference to embodiment and attached drawing.
Embodiment 1
A kind of thermal management system of whole of plug-in hybrid-power automobile is present embodiments provided, including High-temperature cooling system System, medium temperature cooling system, low-temperature cooling system, battery cooling system and air-conditioning system.
The High-temperature cooling system include high temperature heat sink 9, mechanical water pump 10, engine 11, speed changer heat exchanger 12, Oil cooler 13, high-temperature water pump 14, indoor warm air radiator 15 and expansion tank 16;
With reference to figure 2, in the present embodiment, the High-temperature cooling system includes systemic circulation cooling circuit and partial circulating cools back Road;Systemic circulation cooling circuit is according to circulating water flow to cycling through mechanical water pump 10, engine 11 and high temperature heat sink 9 successively; Partial circulating cooling circuit is according to circulating water flow to passing sequentially through mechanical water pump 10, engine 11, speed changer heat exchanger 12, machine oil Cooler 13, high-temperature water pump 14 and indoor warm air radiator 15.
That is, the coolant inlet of the mechanical water pump 10 is connected with the cooling liquid outlet of the high temperature heat sink 9, The cooling liquid outlet of the mechanical water pump 10 is connected with the coolant inlet of the engine 11, the coolant of the engine 11 Outlet is connected with the coolant inlet of the high temperature heat sink 9, so as to fulfill the systemic circulation cooling circuit;Meanwhile the hair Coolant inlet of the cooling liquid outlet of motivation 11 also with the speed changer heat exchanger 12 connects, the speed changer heat exchanger 12 cooling liquid outlet is connected with the coolant inlet of the oil cooler 13, the coolant inlet of the oil cooler 13 It is connected with the coolant inlet of the high-temperature water pump 14, the cooling liquid outlet of the high-temperature water pump 14 radiates with the indoor warm wind The coolant inlet connection of device 15, the coolant inlet and the coolant of the mechanical water pump 9 of the interior warm air radiator 15 Entrance connects, so as to fulfill partial circulating cooling circuit.
The speed changer heat exchanger 12 is the heat exchanger of oil cooling double-clutch speed changer;By the high-temperature water pump 14, It can be achieved under pure electric vehicle operating mode, air conditioning warm air provided using High-temperature cooling system waste heat, speed changer caloric value;Pass through the high temperature Water pump 14 is, it can be achieved that under pure electric vehicle operating mode, the cooling of speed changer, and adds using heat caused by speed changer for engine Heat;The high-temperature water pump, it can be achieved that under pure electric vehicle operating mode, utilizes the High-temperature cooling system waste heat, described under unlocking condition Speed changer caloric value provides air conditioning warm air;And the cooling to the speed changer, and be institute using the speed changer caloric value State engine heating.
The medium temperature cooling system includes middle temperature radiator 5, middle warm water pump 6, charge air cooler 7, turbocharger 8.
With reference to figure 3, the medium temperature cooling system according to circulating water flow to cycle through successively middle warm water pump 6, charge air cooler 7, Turbocharger 8, middle temperature radiator 5, in this circuit, charge air cooler 7 and turbocharger 8 are in parallel, and the charge air cooler 7 is water-cooled Charge air cooler.
That is, the cooling liquid outlet of the middle temperature radiator 5 is connected with the coolant inlet of the middle warm water pump 6, The cooling liquid outlet of the middle warm water pump 6 is connected with the coolant inlet of the charge air cooler 7, and the coolant of the charge air cooler 7 goes out Mouth is connected with the coolant inlet of the middle temperature radiator 5, it is achieved thereby that the water (coolant) of the medium temperature cooling system Xun Huan;In the present embodiment, the coolant inlet of the cooling liquid outlet of the middle warm water pump 6 also with turbocharger 8 connects, described The cooling liquid outlet of turbocharger 8 is connected with the coolant inlet of the middle temperature radiator 5.
The low-temperature cooling system includes low-temperature radiator 1, electric machine controller 2, low temperature water pump 3 and motor 4.
With reference to figure 4, the low-temperature cooling system is according to circulating water flow to cycling through electric machine controller 2, water at low temperature successively Pump 3, motor 4 and low-temperature radiator 1, the motor 4 are water cooled machine.
That is, the coolant that the cooling liquid outlet of the low-temperature radiator 1 is connected to the electric machine controller 2 enters Mouthful, the cooling liquid outlet of the electric machine controller 2 is connected to the coolant inlet of the low temperature water pump 3, the low temperature water pump 3 Cooling liquid outlet is connected to the coolant inlet of the cooling line of the motor 4, and the coolant of the cooling line of the motor 4 goes out Mouth is connected to the coolant inlet of the low-temperature radiator 1, and is achieved in the cycling of the water (coolant) of low-temperature cooling system.
The battery cooling system include battery cooling heat exchanger 17, battery water pump 18, power battery 19, DCDC20, Charger 21, battery cooling expansion valve 22, battery cooling expansion tank 28;
With reference to figure 5, the battery cooling system is according to circulating water flow to being cycled through successively including battery water pump 18, power Battery 19, DCDC20, charger 21 and battery cool down heat exchanger 17, and battery cooling expansion valve 22 is opened in this cycle, air-conditioning Refrigeration cycle starts, and the power battery 19 is water-cooled power battery.
That is, the cooling liquid outlet of the battery water pump 18 is connected to the coolant inlet of the power battery 19, The cooling liquid outlet of the power battery 19 is connected to the coolant inlet of the DCDC20, the cooling liquid outlet of the DCDC20 It is connected with the coolant inlet of the charger 21, cooling liquid outlet and the battery of the charger 21 cool down heat exchanger 17 coolant inlet connection, the coolant of the cooling liquid outlet and the battery water pump 18 of the battery cooling heat exchanger 17 Entrance connects, moreover, the coolant inlet of battery cooling heat exchanger 17 is connected with cooling liquid outlet.
The air-conditioning system is that the air-conditioning system of PTC is warmed up using wind, including air conditioner refrigerating expansion valve 23, evaporator 24, wind Warm PTC25, electric air-conditioning compressor 26 and condenser 27.
With reference to figure 6, air conditioner refrigerating cycle, refrigerant sequentially pass through compressor of air conditioner 26, air conditioner refrigerating expansion valve 23, Evaporator 24 and condenser 27, this cycle in air conditioner refrigerating expansion valve 23 open, air conditioner refrigerating loop start, wind warms up PTC25 not Work;Battery cooling expansion valve 22 is opened when power battery has cooling requirement.
With reference to figure 7, air-conditioning heating cycle, according to circulating water flow to passing sequentially through mechanical water pump 10, engine 11, become Fast device heat exchanger 12, oil cooler 13, high-temperature water pump 14 and indoor warm air radiator 15;Wind warms up PTC25 and is adopted in this air-conditioning Warm circulating-heating amount carries out auxiliary heating when low, and the wind warms up PTC25 and warms up PTC for low-pressure air.
That is, the refrigerant outlet of the electric air-conditioning compressor 26 and the refrigerant inlet of the condenser 27 connect Logical, the refrigerant outlet of the condenser 27 is connected with the air conditioner refrigerating expansion valve 23 and battery cooling expansion valve 28, institute The refrigerant inlet that air conditioner refrigerating expansion valve 23 is stated with the evaporator 24 connects, the refrigerant outlet of the evaporator 24 and institute State the refrigerant inlet connection of electric air-conditioning compressor 26;Meanwhile the battery cooling expansion valve 28 is also cooled down with the battery The refrigerant inlet connection of heat exchanger 17, the refrigerant outlet of the battery cooling heat exchanger 17 and the electric air-conditioning pressure The refrigerant inlet connection of contracting machine 26.
The expansion tank 16 shares for High-temperature cooling system, medium temperature cooling system and low-temperature cooling system;That is, Cooling liquid outlet, the indoor warm air radiator 15 of the coolant inlet of the expansion tank 16 with the turbocharger 8 Coolant inlet connected with the cooling liquid outlet of the electric machine controller 2, the cooling liquid outlet of the expansion tank 16 difference It is connected with the coolant inlet of the mechanical water pump 10, to carry out moisturizing, and the swelling water to the High-temperature cooling system Coolant inlet of the case 16 also with the medium temperature electric water pump 6 connects, to carry out moisturizing to the medium temperature cooling system, meanwhile, Coolant inlet of the expansion tank 16 also with the low temperature water pump 3 connects, to carry out moisturizing to the low-temperature cooling system.
The battery cooling expansion tank 28 is used alone for the battery cooling system, that is to say, that the battery is cold But the cooling liquid outlet of expansion tank 28 is connected with the coolant inlet of the battery water pump 18, with to the battery cooling system Moisturizing is carried out, the coolant inlet and the coolant of battery cooling heat exchanger 17 of the battery cooling expansion tank 28 go out Mouth connection.
The thermal management system of whole of the plug-in hybrid-power automobile of the utility model, according to different components caloric value and Cooling requirement is designed, and each component is avoided to influence each other, and is met high request of each component to temperature in use, is ensured each component Function and performance improve service life and the efficiency of each component.
When in use, speed changer is cooled down in high the thermal management system of whole of the plug-in hybrid-power automobile of the utility model In warm cooling system partial circulating, when engine 11 works, using mechanical water pump 10 coolant Xun Huan is driven to realize speed changer Cooling;When engine 11 does not work, i.e., under pure electric vehicle operating mode, speed changer cooling is realized using high-temperature water pump 14.It is i.e. sharp Ensure cooling requirement of the speed changer under each operating mode with same cooling system water route, realize the peak use rate of heat management resource.
Air conditioner refrigerating cycles and battery cooling circuit common condenser 27 and electric air-conditioning compressor 26, realizes heat management money The peak use rate in source.Air conditioner refrigerating throttle valve 23 is circularly set using in air conditioner refrigerating, controls air conditioner refrigerating circulating open close, is protected Demonstrate,prove crew module's refrigeration demand;In battery cooling circuit battery is set to cool down expansion valve 22, the cooling circuit opening and closing of control battery ensures The cooling requirement of power battery 19;It is achieved in crew module's refrigeration and power battery cools down independent control.
When engine 11 works, warm wind demand is realized using 11 caloric value of engine;When engine 11 does not work, that is, exist Under pure electric vehicle operating mode, by high-temperature water pump 14 High-temperature cooling system partial circulating coolant is driven to cycle, utilize 11 waste heat of engine It generates heat with speed changer, realizes crew module's warm wind demand;When 11 waste heat of engine and speed changer fever cannot meet warm wind demand, PTC25, which is warmed up, using wind carries out auxiliary heating.Thus, it is possible to which 11 waste heat of engine and speed changer is made full use of to generate heat, engine is reduced Frequent starting effectively reduces oil consumption and reduces pollutant emission, promotes the energy saving, the feature of environmental protection and comfort of vehicle.
When engine 11 does not work, i.e., under pure electric vehicle operating mode, coolant Xun Huan is driven using high-temperature water pump 14, is utilized Speed changer fever realizes that engine 11 preheats, and prevents that 11 temperature of engine is too low, and lubricating oil viscosity is relatively low when causing to restart, Frictional resistance is excessive, and distributive value increases, and oil consumption increase and pollutant emission is caused to increase, so as to effectively promoted vehicle economy and Emission performance.
The sequencing of above example only for ease of description, does not represent the quality of embodiment.
Finally it should be noted that:Above example is only to illustrate the technical solution of the utility model, rather than its limitations; Although the utility model is described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: It still can modify to the technical solution recorded in foregoing embodiments or which part technical characteristic is carried out etc. With replacement;And these modifications or replacement, the essence of appropriate technical solution is not made to depart from various embodiments of the utility model technology The spirit and scope of scheme.

Claims (8)

1. a kind of thermal management system of whole of plug-in hybrid-power automobile, which is characterized in that including High-temperature cooling system, medium temperature Cooling system, low-temperature cooling system, battery cooling system and air-conditioning system;
The High-temperature cooling system include high temperature heat sink, mechanical water pump, engine, speed changer heat exchanger, oil cooler, High-temperature water pump and indoor warm air radiator;
The coolant inlet of the mechanical water pump is connected with the cooling liquid outlet of the high temperature heat sink, the mechanical water pump it is cold But liquid outlet is connected with the coolant inlet of engine, the cooling liquid outlet of the engine and the cooling of the high temperature heat sink Liquid entrance connects;Coolant inlet of the cooling liquid outlet of the cooling line of the engine also with the speed changer heat exchanger Connection, the cooling liquid outlet of the speed changer heat exchanger are connected with the coolant inlet of the oil cooler, the machine oil The coolant inlet of cooler is connected with the coolant inlet of the high-temperature water pump, the cooling liquid outlet of the high-temperature water pump and institute State the coolant inlet connection of indoor warm air radiator, the coolant inlet of the interior warm air radiator and the mechanical water pump Coolant inlet connection;
The medium temperature cooling system includes middle temperature radiator, middle warm water pump, charge air cooler and turbocharger;
The cooling liquid outlet of the middle temperature radiator is connected with the coolant inlet of the middle warm water pump, the middle warm water pump it is cold But liquid outlet is connected with the coolant inlet of the charge air cooler, the cooling liquid outlet of the charge air cooler and the middle temperature radiator Coolant inlet connects;The cooling liquid outlet of the middle warm water pump is also connected with the coolant inlet of turbocharger, the whirlpool The cooling liquid outlet of wheel booster is connected with the coolant inlet of the middle temperature radiator;
The low-temperature cooling system includes low-temperature radiator, electric machine controller, low temperature water pump and motor;
The cooling liquid outlet of the low-temperature radiator is connected to the coolant inlet of the electric machine controller, the electric machine controller Cooling liquid outlet be connected to the coolant inlet of the low temperature water pump, the cooling liquid outlet of the low temperature water pump is connected to described The coolant inlet of motor, the cooling liquid outlet of the motor are connected to the coolant inlet of the low-temperature radiator;
The battery cooling system includes battery cooling heat exchanger, battery water pump, power battery, DCDC, charger and battery Cool down expansion valve;
The cooling liquid outlet of the battery water pump is connected to the coolant inlet of the power battery, the cooling of the power battery Liquid exports the coolant inlet for being connected to the DCDC, the coolant inlet of the cooling liquid outlet of the DCDC and the charger Connection, the cooling liquid outlet of the charger are connected with the coolant inlet of battery cooling heat exchanger, and the battery is cold But the cooling liquid outlet of heat exchanger is connected with the coolant inlet of the battery water pump, and the battery cools down the cold of heat exchanger But liquid entrance is connected with cooling liquid outlet;
The air-conditioning system includes air conditioner refrigerating expansion valve, evaporator, wind and warms up PTC, electric air-conditioning compressor and condenser;
The refrigerant outlet of the electric air-conditioning compressor is connected with the refrigerant inlet of the condenser, the system of the condenser Cryogen is exported to be connected with the air conditioner refrigerating expansion valve and battery cooling expansion valve, the air conditioner refrigerating expansion valve and the steaming The refrigerant inlet connection of device is sent out, the refrigerant outlet of the evaporator and the refrigerant inlet of the electric air-conditioning compressor connect It is logical;Refrigerant inlet of the battery cooling expansion valve also with battery cooling heat exchanger connects, the battery cooling heat The refrigerant outlet of exchanger is connected with the refrigerant inlet of the electric air-conditioning compressor;The wind warms up PTC in air-conditioning heating Auxiliary heating is carried out when circulating-heating amount is low.
2. the thermal management system of whole of plug-in hybrid-power automobile according to claim 1, which is characterized in that the change Fast device heat exchanger is the heat exchanger of oil cooling double-clutch speed changer.
3. the thermal management system of whole of plug-in hybrid-power automobile according to claim 1, which is characterized in that in described Cooler is water-cooled charge air cooler.
4. the thermal management system of whole of plug-in hybrid-power automobile according to claim 1, which is characterized in that the electricity Machine is water cooled machine.
5. the thermal management system of whole of plug-in hybrid-power automobile according to claim 1, which is characterized in that described dynamic Power battery is water-cooled power battery.
6. the thermal management system of whole of plug-in hybrid-power automobile according to claim 1, which is characterized in that the wind Warm PTC warms up PTC for low-pressure air.
7. the thermal management system of whole of plug-in hybrid-power automobile according to claim 1, which is characterized in that further include Expansion tank, the coolant inlet of the expansion tank are warm with the cooling liquid outlet of the turbocharger, the interior respectively The coolant inlet of wind radiator is connected with the cooling liquid outlet of the electric machine controller, the cooling liquid outlet of the expansion tank Respectively with the cooling of the coolant inlet of the mechanical water pump, the coolant inlet of the middle warm water pump and the low temperature water pump Liquid entrance connects.
8. the thermal management system of whole of plug-in hybrid-power automobile according to claim 1, which is characterized in that further include Battery cools down expansion tank, and the coolant inlet of the cooling liquid outlet and the battery water pump of the battery cooling expansion tank connects Logical, the coolant inlet of the battery cooling expansion tank is connected with the cooling liquid outlet of battery cooling heat exchanger.
CN201721613190.XU 2017-11-28 2017-11-28 The thermal management system of whole of plug-in hybrid-power automobile Active CN207433190U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11305659B2 (en) 2019-04-03 2022-04-19 Hyundai Motor Company Electric vehicle and cooling method thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11305659B2 (en) 2019-04-03 2022-04-19 Hyundai Motor Company Electric vehicle and cooling method thereof

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