CN109927534A - A kind of heat management system and control method of hybrid power heavy motor truck - Google Patents

A kind of heat management system and control method of hybrid power heavy motor truck Download PDF

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Publication number
CN109927534A
CN109927534A CN201910211608.1A CN201910211608A CN109927534A CN 109927534 A CN109927534 A CN 109927534A CN 201910211608 A CN201910211608 A CN 201910211608A CN 109927534 A CN109927534 A CN 109927534A
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China
Prior art keywords
cooling
temperature level
temperature
engine
oil
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CN201910211608.1A
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Chinese (zh)
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CN109927534B (en
Inventor
刘海峰
杨鸿镔
尧命发
王浒
郑尊清
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Tianjin University
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Tianjin University
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Priority to CN201910211608.1A priority Critical patent/CN109927534B/en
Priority to PCT/CN2019/083266 priority patent/WO2020186589A1/en
Priority to RU2021101966A priority patent/RU2762076C1/en
Publication of CN109927534A publication Critical patent/CN109927534A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/02—Heating, cooling or ventilating [HVAC] devices the heat being derived from the propulsion plant
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/02—Heating, cooling or ventilating [HVAC] devices the heat being derived from the propulsion plant
    • B60H1/03—Heating, cooling or ventilating [HVAC] devices the heat being derived from the propulsion plant and from a source other than the propulsion plant
    • 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
    • B60K11/00—Arrangement in connection with cooling of propulsion units
    • B60K11/02—Arrangement in connection with cooling of propulsion units with liquid cooling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
    • B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
    • B60L58/24—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries
    • B60L58/26—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries by cooling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
    • B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
    • B60L58/24—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries
    • B60L58/27—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries by heating
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M1/00—Pressure lubrication
    • F01M1/02—Pressure lubrication using lubricating pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M1/00—Pressure lubrication
    • F01M1/16—Controlling lubricant pressure or quantity
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M5/00—Heating, cooling, or controlling temperature of lubricant; Lubrication means facilitating engine starting
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • Thermal Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Power Engineering (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
  • Control Of Vehicle Engines Or Engines For Specific Uses (AREA)
  • Air-Conditioning For Vehicles (AREA)

Abstract

The invention discloses the heat management systems and control method of a kind of hybrid power heavy motor truck, the component of different heat demands is integrated in different cooling subsystems by heat management system of the invention respectively, can be divided into the high-temperature level cooling system including engine water cooling back installation and engine oil cooling back installation, the low-temperature level cooling system including power battery and motor and the air conditioner cooling system with double drive compressor of air conditioner.Heavy motor truck heat management system provided by the invention provides vehicle warming-up, traveling and control method cooling afterwards, it is able to achieve the distribution according to need of each component heat dissipation capacity under each operating condition, and waste heat is rationally utilized, improves the energy consumption of heat management system attachment, to improve the economy of vehicle.

Description

A kind of heat management system and control method of hybrid power heavy motor truck
Technical field
The invention belongs to hybrid vehicle field of heat management more particularly to a kind of heat of hybrid power heavy motor truck Management system attachment intelligent control new method.
Background technique
Thermal management system of whole is to guarantee the important auxiliary system of each component normal table work of vehicle, to make vehicle engine Mechanical, electrical pond etc. is in good working order always, it is necessary to which opposite heat tube reason is reasonably controlled, so that cooling system The heat taken away is in optimum range, guarantees that engine will not both generate volumetric efficiency decline, burning not just due to overheat Often with the machine oil such as pinking, pre-ignition are rotten and scaling loss and generate the unreliable phenomenon of work, also undercooling is avoided to bring radiation loss The consequence that mechanical loss caused by excessive, Effective power loss increases, part friction and wear aggravates increases.It is compared to traditional Heat management system increases the cooling requirement of the components such as motor, power battery in hybrid power system, due to electrical equipment and hair The calorific value of the associated components such as motivation is different, the coolant temperature of the components such as engine, oil temperature generally require 90 DEG C- 120 DEG C or so, and the operating temperature of motor, power battery is generally recommended between 10 DEG C -40 DEG C, it is poor to coolant temperature demand It is not larger.Fan, the water pump of traditional cooling system couple with engine speed and the problem of thermostat hysteresis, will limitation hair Adaptability of the motivation heat management system under full working scope and control precision, especially the dynamic property of nonstandard operating point, economy, can It declines to a great extent by indexs such as property.
Mixed dynamic heat management in patent " hybrid vehicle and its heat management system and method (CN 108656940A) " System uses multiple-loop structure, but deficiency is:
1. do not accounted in north of china in winter vehicle driving warming-up process in high voltage component cooling circuit, radiator is passively windward Unnecessary thermal loss is caused, while power battery does not have the preheating scheme of pre-heater.
2. super charge intercooler is still arranged in the high-temperature level coolant circuit where engine, to inlet gas cooling effect It is limited；Not enough refinement is considered to engine heat load component, is not accounted for using cooler for recycled exhaust gas；
3. compressor of air conditioner use motor compressor, do not have double drive compressor of air conditioner work flexibly it is adjustable and work High-efficient feature；
4. the cooling circuit of engine cylinder body and engine cylinder cover uses tandem, cylinder body and cylinder cap pair cannot be met very well The heat demand answered；
5. machine oil coolant rate can not be controlled flexibly, that is, it cannot achieve the effective controllable of oil temperature, be not easy to reduce machine The power consumption of tool efficiency and lubricating oil pump；
Heat management system in patent " a kind of hybrid vehicle heat management system (CN207657762U) ", wherein not Foot is:
1. not accounting for the thermic load of the super charge intercooler of engine and cooler for recycled exhaust gas, power battery is adopted With air cooling way, scheme is not preheated, does not highlight the great influence of thermostat assignment of traffic in cooling circuit.
2. not accounting for the thermal management scheme of air-conditioning cooling circuit；System structure is complicated, using multiple radiators and multiple groups Radiator fan.
Summary of the invention
Object of the present invention is to overcome prior art, a kind of heat management system of hybrid power heavy motor truck is provided System and control method, the component of different heat demands is integrated in the different cooling subsystem of temperature, be able to satisfy each component for The high request of thermal environment guarantees the function and performance of each component, improves service life and the efficiency of each component, makes novel hybrid weight The dynamical system of type truck meets the cooling requirements of engine, battery and motor simultaneously and attachment power consumption minimizes the need designed It asks.
In order to achieve the above objectives, the technical solution adopted by the present invention is as follows:
A kind of heat management system of hybrid power heavy motor truck, including high-temperature level cooling system, low-temperature level cooling system System and air conditioner cooling system；
The high-temperature level cooling system includes engine water cooling back installation and engine oil cooling back installation, institute The engine water cooling back installation stated is divided into including the first automatically controlled three-way ball valve, and two of the automatically controlled three-way ball valve of described first Entrance is respectively by being provided with the first coolant line of temperature sensor A, being provided with the second coolant pipe of temperature sensor B The second cooling cycle pipeline in the first cooling cycle tube outlet and engine cylinder body in road connection engine cylinder cover goes out Mouthful, the outlet of the automatically controlled three-way ball valve of described first and engine coolant sprue, by the first solenoid valve and cooler for recycled exhaust gas The EGR cooling circuit being composed in series and the warm wind circuit being composed in series by second solenoid valve and warm-air exchanger converge after enter Mouth is connected；Air blower, a entrance of the second automatically controlled three-way ball valve and engine coolant master are being provided at warm-air exchanger Outlet after runner, EGR cooling circuit and warm wind circuit are converged is connected；
The b of the second automatically controlled three-way ball valve, which is exported, is sequentially connected the first PTC by engine coolant partial circulating branch It is divided into two-way after heater and high-temperature level electric control pump, connects the first cooling cycle line entry in engine cylinder cover all the way, Another way connects the second cooling cycle line entry in engine cylinder body；
The outlet c of the second automatically controlled three-way ball valve is sequentially connected high-temperature level by engine coolant systemic circulation branch and dissipates It is divided into two-way after hot device and high-temperature level electric control pump, connects the first cooling cycle line entry in engine cylinder cover all the way, separately The second cooling cycle line entry in engine cylinder body is connected all the way, and high-temperature level radiator fan is set close to high-temperature level radiator It sets；
The engine oil cooling back installation includes oil circuit triple valve, a entrance and hair of the oil circuit triple valve The oil circuit outlet of motivation cylinder body is connected by being equipped with the flow line of temperature sensor E, the outlet c of the oil circuit triple valve Oil radiator, oil sump, lubricating oil pump, oil filter and engine cylinder body are sequentially connected by oil circuit systemic circulation pipeline Oil circuit entrance, the outlet b of the oil circuit triple valve is by between oil circuit partial circulating pipeline and oil radiator and oil sump The outside of high-temperature level radiator is arranged in oil circuit systemic circulation pipeline connection, oil radiator；
The low-temperature level cooling system includes the automatically controlled three-way ball valve of third, the outlet c of the automatically controlled three-way ball valve of the third By first circulation pipeline be sequentially connected low-temperature level electric control pump, the Water-cooling circulating pipeline in power battery, temperature sensor C, Third solenoid valve, the Water-cooling circulating pipeline of motor, temperature sensor D, the 2nd PTC heater, super charge intercooler, low temperature The a entrance of grade radiator and the automatically controlled three-way ball valve of third, automatically controlled shutter are located on the outside of radiator, low-temperature level radiation air Fan is positioned at radiator inside, one end of low-temperature level partial circulating branch and between air intake intercooler and the second ptc heater The first circulation pipeline connection and other end is connected to the b entrance of the automatically controlled three-way ball valve of third, low-temperature level coolant liquid sprue into Mouthful and the first circulation pipeline connection between temperature sensor C and third solenoid valve and the other end be located at motor and the First circulation pipeline connection between two ptc heaters, the work of the low-temperature level electric control pump and low-temperature level radiator fan Mode is divided into closing, bottom gear and top gear；
The air conditioner cooling system includes the outlet for the air-conditioning condenser being sequentially connected by second circulation pipeline, air-conditioning section The entrance of valve, A/C evaporator, double drive compressor of air conditioner and air-conditioning condenser is flowed, air-conditioning condenser is arranged in high-temperature level and dissipates It is total to be equipped with the driven pulley with electromagnetic clutch on the double drive compressor of air conditioner external input shaft for the outside of hot device At the driven pulley in the driven pulley assembly is connected with the belt wheel on the crankshaft of engine by belt；When air-conditioning pressure The controller of contracting machine receives air-conditioning open signal and judges engine just at work, and the controller of compressor of air conditioner makes described Electromagnetic clutch closure；Electromagnetic clutch is disconnected when the controller of compressor of air conditioner receives air-conditioning shutdown signal；It is interior The shaft of centrally-mounted driving is connected with the shaft of double drive compressor of air conditioner, the control line and air-conditioning of the interior centrally-mounted driving The controller of compressor is connected, when the controller of compressor of air conditioner receives air-conditioning open signal and engine is shut down, at this time Electromagnetic clutch is in an off state, and the controller of the compressor of air conditioner passes through the inside centrally-mounted driving output operating of control line Signal controls interior centrally-mounted driving rotation, so that compressor of air conditioner be driven to work；When the controller of compressor of air conditioner receives sky When adjusting shutdown signal, the inside centrally-mounted driving output stalling signal of the controller of the compressor of air conditioner controls interior centrally-mounted driving Stalling；The power supply line of interior centrally-mounted driving is connected with the high pressure electrical circuit where power battery, passes through the height where power battery Piezoelectricity loop power supply；The heat management system control method of hybrid power heavy motor truck, the warming-up mistake including vehicle cold-start Cooling system control during Cheng Zhong, normal vehicle operation and in vehicle stopping process, the cooling system control point For the control of high-temperature level cooling system, the control of low-temperature level cooling system and air conditioner cooling system control, the high-temperature level cooling system System control includes the control of high-temperature level cooling device water circulating cooling and the control of high-temperature level cooling device oil circulating cooling:
Wherein: cooling system controls in the warming-up process of vehicle cold-start:
High-temperature level cooling device water circulating cooling control process is as follows:
1a step, high-temperature level electric control pump to avoid engine hot-spot slow-speed of revolution mode operation, from engine cylinder Second cooling cycle pipeline outflow in the coolant liquid and engine cylinder body of the first cooling cycle tube outlet outflow in lid Coolant liquid successively passes through the first automatically controlled three-way ball valve, engine coolant sprue, a entrance of the second automatically controlled three-way ball valve, The b of two automatically controlled three-way ball valve standard-sized sheets is exported, is distinguished return engine cylinder cap after the first ptc heater and high-temperature level electric control pump In the first cooling cycle line entry and engine cylinder body in the second cooling cycle line entry, in the process according to temperature The temperature signal for spending sensors A and temperature sensor B acquisition, the ball valve for adjusting the first automatically controlled three-way ball valve rotate angle, control First cooling cycle pipeline and the assignment of traffic of the second cooling cycle management, thus coolant liquid in the first cooling cycle pipeline of control With the heat exchange amount of coolant liquid and engine cylinder body in the heat exchange amount of engine cylinder cover and the second cooling cycle pipeline so that second is cold But the outlet coolant temperature of circulation line is 5 DEG C higher than the outlet coolant temperature of the first cooling cycle pipeline；
1b step, when the outlet coolant temperature for detecting the second cooling cycle pipeline and the first cooling cycle pipeline out When mouth coolant temperature reaches 85 DEG C or more, it is judged as that engine warm-up finishes, then the second automatically controlled three-way ball in 1a step The outlet b of valve progressively closes off, and closes the first ptc heater, and the c for being gradually opened the second automatically controlled three-way ball valve is exported to entirely It opens, keeps a entrance coolant liquid for flowing into the second automatically controlled three-way ball valve in 1a step whole by the outlet c of the second automatically controlled three-way ball valve Flow through after high-temperature level radiator and high-temperature level electric control pump the first cooling cycle pipeline in return engine cylinder cap respectively The entrance of the second cooling cycle pipeline in entrance and engine cylinder body；
The cooling oil circulation device course of work of high-temperature level is as follows:
2a step, lubricating oil pump flow after oil filter, each lubricating component of engine from the machine oil sucked in oil sump Enter the outlet b of a entrance, oil circuit triple valve standard-sized sheet of oil circuit triple valve, machine oil comes back to oil sump and flows through entering for lubricating oil pump Mouth enters to be recycled next time, is lubricated to each component of engine；
2b step, when detecting that oil temperature reaches 100 DEG C or more by temperature sensor E, judges that oil preheating is complete At, enter 5a step；
The course of work of low-temperature level cooling device is as follows:
3a step, when the coolant liquid of Water-cooling circulating pipeline in the battery pack for detecting power battery by temperature sensor C When temperature is lower than 10 DEG C, automatically controlled shutter is closed, and low-temperature level radiator fan is closed, and low-temperature level electric control pump works in minimum power State maintains low-temperature level coolant liquid circulation to have certain flow rate, and it is automatically controlled that the automatically controlled three-way ball valve entrance a of third is in standard-sized sheet, third Three-way ball valve entrance b is in close state, at this time firstly, if motor does not work in vehicle travel process, third electromagnetism Valve is closed, and the coolant liquid of Water-cooling circulating pipeline flows into the second ptc heater from low-temperature level coolant liquid sprue in power battery；When When motor works in vehicle travel process, then third solenoid valve is opened, the coolant liquid in power battery in Water-cooling circulating pipeline The runner stream formed respectively from low-temperature level coolant liquid sprue and by the Water-cooling circulating Tandem of third solenoid valve and motor Enter the second ptc heater after out；
Then, the heat exchange of super charge intercooler is flowed through from the coolant liquid that the second ptc heater flows out, the coolant liquid after heat exchange The water cooling of power battery is successively back flowed back into after low-temperature level radiator, the automatically controlled three-way ball valve of third flow back to low-temperature level electric control pump The entrance of circulation line carries out circulating-heating to power battery；
3b step closes the heating function of the second ptc heater after the temperature for detecting power battery is higher than 15 DEG C, Close low-temperature level electric control pump, preheating complete, into nominal situation under operational mode；
Cooling system controls when vehicle is run in normal conditions:
High-temperature level cooling device water circulating cooling control process is as follows:
A entrance and the c outlet of 4a step, the second automatically controlled three-way ball valve are shown in a fully open operation, the second automatically controlled three-way ball valve B outlet be in full off state；Firstly, from engine cylinder cover the first cooling cycle pipeline flow out coolant liquid and start The coolant liquid that the second cooling cycle pipeline flows out in machine cylinder body passes through the first automatically controlled three-way ball valve, and then a part passes through engine Coolant liquid sprue, another part flow through cooler for recycled exhaust gas by the first open solenoid valve and cool down to the exhaust gas of recycling； Subsequent coolant liquid imports a entrance of the second automatically controlled three-way ball valve, and the cooling all flowed out is exported from the c of the second automatically controlled three-way ball valve Liquid carries out successively back flowing back into high-temperature level electric control pump and the first cooling after sufficiently exchanging heat with environment in high-temperature level radiator The entrance of second cooling cycle pipeline in the entrance and engine cylinder body of circulation line, in the process, by adjusting first The outlet coolant rate of automatically controlled three-way ball valve rotation angular distribution engine cylinder cover and engine cylinder body, makes the first cooling cycle The coolant temperature of tube outlet outflow is 5 DEG C lower than the coolant temperature that the second cooling cycle tube outlet flows out；
The cooling oil circulation device course of work of high-temperature level is as follows:
5a step, lubricating oil pump enter the oil duct of engine cylinder body with the oil pressure and oil mass demarcated according to engine condition Confession machine oil；Detailed process are as follows: machine oil is sucked out from oil sump, is successively respectively lubricated by lubricating oil pump, oil filter, engine The a entrance of oil circuit triple valve is flowed into after component, part machine oil enters back into oil sump by the outlet b outflow from oil circuit triple valve, separately A part of machine oil sequentially enters oil sump, lubricating oil pump after oil radiator from the outlet oil circuit triple valve c outflow again and recycles Each component of engine is lubricated, the control of oil temperature is realized by the fuel-flow control of the outlet b and the outlet c to oil circuit triple valve System reduces the aperture of the outlet c when oil temperature is lower than 110 DEG C, increases the aperture of the outlet b, increases oil temperature；When oil temperature is higher than 130 DEG C when, increase c outlet aperture, reduce b outlet aperture；
The course of work of low-temperature level cooling device is as follows:
6a step, when power battery electric discharge, motor work, third solenoid valve is opened；When environment temperature be lower than 0 DEG C when and When flowing through the coolant temperature in power battery in Water-cooling circulating pipeline lower than 20 DEG C, automatically controlled shutter is closed, low-temperature level is automatically controlled Water pump is closed still in closed state, low-temperature level radiator fan；When environment temperature is not less than 0 DEG C, or when temperature sensor C is adopted Collect coolant temperature in power battery Water-cooling circulating pipeline and be not less than 20 DEG C, or when temperature sensor D collects motor water cooling When coolant temperature is higher than 25 DEG C in circulation line, automatically controlled shutter is opened, and low-temperature level electric control pump is in lower-speed state, low temperature Grade radiator fan is closed, at this time by adjusting a entrance of the automatically controlled three-way ball valve of third and the aperture of b entrance, when power electric water The aperture of a entrance of the automatically controlled three-way ball valve of third is gradually increased when coolant temperature increases in SAPMAC method pipeline；Work as power battery When Water-cooling circulating tube outlet coolant temperature is higher than 30 DEG C, a entrance standard-sized sheet of the automatically controlled three-way ball valve of third is opened low-temperature level and is dissipated Hot-air fan is to bottom gear；When coolant temperature is higher than 40 DEG C or motor water cooling circulation line in the Water-cooling circulating pipeline of power battery When middle coolant temperature is more than 50 DEG C, low-temperature level radiator fan top gear operate, low-temperature level electric control pump run at high speed make it is cold But liquid rapid cooling；
Cooling system control in vehicle stopping process:
The control of high-temperature level water circle device:
7a step, in high-temperature level cooling circuit, engine keeps high-temperature level electric control pump with minimum power consumption after shutting down Rotary speed working 2min, high-temperature level radiator fan are closed；
The control of low-temperature level cooling device:
8a step, low-temperature level cooling circuit is since thermic load is smaller, automatically controlled shutter, low-temperature level radiator fan and low-temperature level Electric control pump after electricity under vehicle with closing；
Air conditioner cooling system control under engine warm-up, nominal situation:
Crew module has control process when refrigeration demand:
9a step, in process of refrigerastion, second solenoid valve is closed, and air blower is opened, and is that double drive is empty by power battery It adjusts compressor to provide electric energy and drives its operating, the refrigerant in air conditioner cooling system heats up after double drive compressor of air conditioner Boosting, and heat exchange is carried out with environment at air-conditioning condenser, air-conditioner throttling valve decompression is flowed through after cooling, is finally evaporated in air-conditioning Air blower is blown into the air cooling-down of crew module, and the entrance for flowing back to double drive compressor of air conditioner completes refrigeration cycle in device；
Crew module has control process when heating demand:
10a step, when occupant has heating demand, if engine does not work, second solenoid valve is opened, is second automatically controlled A entrance standard-sized sheet, the outlet b standard-sized sheet, the full pass in the outlet c, the high-temperature level electric control pump of three-way ball valve work in minimum power consumption state, at this time The coolant liquid of high-temperature level cooling circuit goes out after high-temperature level electric control pump from the first cooling cycle pipeline in engine cylinder cover The second cooling cycle tube outlet flows out and converges into the first automatically controlled three-way ball valve, coolant liquid difference in mouth and engine cylinder body Flow through the warm-air exchanger on engine coolant sprue and warm wind circuit；Air blower is opened, will be cold in warm-air exchanger But liquid heat transfer to enter crew module air in, then cooling after coolant liquid with it is cold in engine coolant sprue But the second automatically controlled three-way ball valve, the first ptc heater and high-temperature level electric control pump are flowed successively through after liquid converges completes heating circulation；
When occupant has heating demand, engine operation and it is in warm-up mode, then enters 1a and walk, and by the second electromagnetism Valve unlatching, blower opening, the heat transfer in the coolant liquid for flowing through second solenoid valve, warm-air exchanger is given and enters crew module Air in, and with engine coolant sprue outlet coolant liquid converge after continue cycling through；If engine operation and being in Normal operating conditions then enters 4a and walks, and second solenoid valve unlatching, blower opening will flow through second solenoid valve, warm wind heat exchange Heat transfer in the coolant liquid of device is given into the air of crew module, and is gone out in engine coolant sprue, cooler for recycled exhaust gas The coolant liquid of mouth continues cycling through after converging, and completes warm wind supply.
Compared with prior art, present invention has the advantage that
First, the present invention distributes according to need according to the heat demand difference of each component of vehicle heat management, in high-temperature level cooling system Accurate temperature control of the coolant liquid of engine cylinder body cylinder cap under each operating condition is realized using automatically controlled three-way ball valve.High-temperature level is cooling Prior paraffin thermostat is substituted using automatically controlled three-way ball valve in system, the accurate control of exact flow rate is realized, reduces fuel consumption, To be further reduced attachment power consumption, improves engine economy and propose solution, while being also the following Intelligent Control Strategy Realization lays the foundation.
Second, the present invention separates high/low temperature cooling circuit, make low-temperature level cooling system work motor, battery be suitable for At a temperature of, avoid battery because being subcooled or overheating the case where leading to cisco unity malfunction.Super charge intercooler is arranged in low temperature The more excellent cooling effect that super charge is realized in grade cooling circuit, avoids the high-temperature level cooling system water-cooling ability of engine section Insufficient disadvantage, realizes that the temperature of super charge further decreases, and charge and intake efficiency is improved, to improve engine The thermal efficiency.Increase automatically controlled shutter in low-temperature level cooling system outside radiator, low-temperature level cooling system can be controlled more flexiblely The heat transfer process of system can synchronize the preheating of the cooling and power battery of realizing super charge intercooler, efficiently use internal heat, There is in the heat preservation of heat management system more obvious energy-saving effect in winter；
Third, the present invention make full use of the heat of super charge intercooler to shortening low-temperature level cooling system warm Contribution, while being preheated when the temperature is low by ptc heater, extend the service life of engine and battery, optimizes each components Operating thermal environment, realize shorten warm-up period and reduce energy consumption effect.
4th, for the present invention using the double cooling circuit systems of high/low temperature, structure is simpler, the heat exchanger and sensor used compared with It is few, it is at low cost, it is easily transformed in existing technical foundation, maintenance is convenient.
5th, air conditioner cooling system refrigerating part of the invention uses double drive compressor of air conditioner, in hybrid power heavy type When truck engine is shut down, occupant is sultry when having refrigeration demand due to weather, just can provide cold air without starting engine, avoid Engine operation causes extra energy dissipation under idling.When the engine operates, Mechanical Driven can be changed by electric drive Mode, the problem for avoiding energy transfer efficiency caused by electric drive low.
Detailed description of the invention
In order to illustrate more clearly of the application implementation or technical solution in the prior art, the invention is used below attached Figure is briefly introduced, and example is combined to be further described, wherein
Fig. 1 is a kind of heat management system structure schematic diagram of hybrid power heavy motor truck of the invention；
Fig. 2 is the high-temperature level cooling system schematic diagram in system shown in FIG. 1；
Fig. 3 is the low-temperature level cooling system schematic diagram in system shown in FIG. 1；
Fig. 4 is the air conditioner cooling system schematic diagram in system shown in FIG. 1；
Attached drawing 1 marks: 1- engine cylinder cover；2- engine cylinder body；3- lubricating oil pump；The automatically controlled three-way ball valve of 4- first；5- One solenoid valve；6- second solenoid valve；7-EGR cooler；8- air blower；9- warm-air exchanger；10- A/C evaporator；11- Two automatically controlled three-way ball valves；The first ptc heater of 12-；13- oil circuit triple valve；14- high-temperature level electric control pump；15- high-temperature level dissipates Hot-air fan；16- high-temperature level radiator；17- air-conditioning condenser；18- double drive compressor of air conditioner；19- air-conditioner throttling valve；20- is dynamic Power battery；21- low-temperature level electric control pump；The automatically controlled three-way ball valve of 22- third；23- super charge intercooler；The heat dissipation of 24- low-temperature level Fan；25- low-temperature level radiator；The second ptc heater of 26-；27- third solenoid valve；28- motor；29- engine coolant master Runner；30- low-temperature level coolant liquid main channel；31- oil radiator；32- oil filter；The automatically controlled shutter of 33-；34- oil Bottom case.
Specific embodiment
In order to make those skilled in the art more fully understand technical solution of the present invention, below in conjunction with specific embodiment pair This programme is further described in detail.
A kind of heat management system of hybrid power heavy motor truck, including high-temperature level cooling system, low-temperature level cooling system System and air conditioner cooling system；
The high-temperature level cooling system includes engine water cooling back installation and engine oil cooling back installation, institute The engine water cooling back installation stated is divided into including the first automatically controlled three-way ball valve 4, and the two of the automatically controlled three-way ball valve 4 of described first A entrance is respectively by being provided with the first coolant line of temperature sensor A, being provided with the second coolant liquid of temperature sensor B The first cooling cycle tube outlet in piping connection engine cylinder cover 1 and the second cooling cycle pipe in engine cylinder body 2 Way outlet, the outlet of the automatically controlled three-way ball valve 4 of described first and engine coolant sprue 29, by the first solenoid valve 5 and The EGR cooling circuit and returned by the warm wind that second solenoid valve 6 and warm-air exchanger 9 are composed in series that cooler for recycled exhaust gas 7 is composed in series Entrance after road is converged is connected；Air blower 8 is being provided at warm-air exchanger 9.The a of second automatically controlled three-way ball valve 11 enters Outlet after mouth converges with engine coolant sprue 29, EGR cooling circuit and warm wind circuit is connected；
The b of the second automatically controlled three-way ball valve 11, which is exported, is sequentially connected first by engine coolant partial circulating branch It is divided into two-way after ptc heater 12 and high-temperature level electric control pump 14, connects the first cooling cycle in engine cylinder cover 1 all the way Line entry, another way connect the second cooling cycle line entry in engine cylinder body 2.Engine coolant partial circulating passes through Engine coolant partial circulating branch makes coolant flow direction be to flow to first from a entrance of the second automatically controlled three-way ball valve 11 Ptc heater 12, and flow to after high-temperature level electric control pump 14 cooling cycle of engine cylinder cover 1 Yu engine cylinder body 2.
The c of the second automatically controlled three-way ball valve 11, which is exported, is sequentially connected high-temperature level by engine coolant systemic circulation branch It is divided into two-way after radiator 16 and high-temperature level electric control pump 14, connects the first cooling cycle pipeline in engine cylinder cover 1 all the way Entrance, another way connect the second cooling cycle line entry in engine cylinder body 2.High-temperature level radiator fan 15 is close to high-temperature level Radiator 16 is arranged.Coolant flow direction be from the entrance of the second automatically controlled three-way ball valve 11 flow to high-temperature level radiator 16, and The cooling cycle of engine cylinder cover 1 Yu engine cylinder body 2 is flowed to after high-temperature level electric control pump 14.
The engine oil cooling back installation includes oil circuit triple valve 13, a entrance of the oil circuit triple valve 13 It exports with the oil circuit of engine cylinder body 2 and is connected by being equipped with the flow line of temperature sensor E.The oil circuit triple valve 13 C outlet by oil circuit systemic circulation pipeline be sequentially connected oil radiator 31, oil sump 34, lubricating oil pump 3, oil filter 32 with And the oil circuit entrance of engine cylinder body 2.It is radiated by oil circuit partial circulating pipeline and machine oil the outlet b of the oil circuit triple valve 13 Oil circuit systemic circulation pipeline connection between device 31 and oil sump 34.The outer of high-temperature level radiator 16 is arranged in oil radiator 31 Side.Preferred lubricating oil pump 3 is using the change automatically controlled lubricating oil pump of discharge capacity.
The low-temperature level cooling system includes the automatically controlled three-way ball valve 22 of third, the c of the automatically controlled three-way ball valve 22 of the third Outlet is sequentially connected low-temperature level electric control pump 21, the Water-cooling circulating pipeline in power battery 20, temperature by first circulation pipeline Sensor C, third solenoid valve 27, the Water-cooling circulating pipeline of motor 28, temperature sensor D, the second ptc heater 26, be pressurized into The a entrance of gas intercooler 23, low-temperature level radiator 25 and the automatically controlled three-way ball valve 22 of the third.Automatically controlled shutter 33, which is located at, to be dissipated On the outside of hot device, by the unlatching and closure of automatically controlled shutter 33, can the air that control environment flow through low-temperature level radiator 25, low Warm grade radiator fan 24 is located on the inside of radiator.One end of low-temperature level partial circulating branch be located at air intake intercooler 23 and second First circulation pipeline connection and the other end between ptc heater 26 are connected to the b entrance of the automatically controlled three-way ball valve 22 of third. 30 import of low-temperature level coolant liquid sprue and the first circulation pipeline connection between temperature sensor C and third solenoid valve 27 And the other end and the first circulation pipeline connection between motor 28 and the second ptc heater 26.It is followed from the water cooling of motor The entrance of the second ptc heater 26 is flowed to after the coolant liquid cocurrent that endless tube road and low-temperature level coolant liquid sprue 30 flow out.Institute The operating mode of the low-temperature level electric control pump 21 and low-temperature level radiator fan 24 stated is divided into closing, bottom gear and top gear.
The velocity interval of the bottom gear of the low-temperature level electric control pump 21 is generally arranged between 800-1200rpm and height The velocity interval of speed gear is generally arranged between 1800-2000rpm.
The velocity interval of the bottom gear of the low-temperature level radiator fan 24 be generally arranged between 1000-1500rpm and The velocity interval of top gear is generally arranged between 2000-2500rpm.
The air conditioner cooling system includes the outlet for the air-conditioning condenser 17 being sequentially connected by second circulation pipeline, air-conditioning Throttle valve 19, A/C evaporator 10, double drive compressor of air conditioner 18 and air-conditioning condenser 17 entrance.17 cloth of air-conditioning condenser It sets in the outside of high-temperature level radiator 16.It is equipped on 18 external input shaft of double drive compressor of air conditioner with electromagnetism The driven pulley assembly of clutch, the driven pulley in the driven pulley assembly and the belt wheel on the crankshaft of engine pass through Belt is connected.When the controller of compressor of air conditioner receives air-conditioning open signal and judges engine just at work, air-conditioning pressure The controller of contracting machine is closed the electromagnetic clutch；Make when the controller of compressor of air conditioner receives air-conditioning shutdown signal Electromagnetic clutch disconnects.The shaft of interior centrally-mounted driving is connected with the shaft of double drive compressor of air conditioner 18, the built-in drive The control line of dynamic motor is connected with the controller of compressor of air conditioner, when the controller of compressor of air conditioner receives air-conditioning open signal And engine, when shutting down, electromagnetic clutch is in an off state at this time, the controller of the compressor of air conditioner by control line to Interior centrally-mounted driving exports CRANK PULSES, interior centrally-mounted driving rotation is controlled, so that compressor of air conditioner be driven to work；When air-conditioning pressure When the controller of contracting machine receives air-conditioning shutdown signal, the inside centrally-mounted driving output stalling of the controller of the compressor of air conditioner Signal controls interior centrally-mounted driving stalling；High pressure electrical circuit phase of the power supply line of interior centrally-mounted driving where with power battery 20 Even, pass through the high-voltage electricity loop power supply where power battery 20.The entrance of the air-conditioning condenser 17 and the double drive air-conditioning The outlet of compressor 18 is connected, and the outlet of the air-conditioning condenser 17 is connected with the entrance of the air-conditioner throttling valve 19, air-conditioning cold Condenser 17 is arranged in the outside of high-temperature level radiator 16, makes surrounding air followed by air-conditioning condenser 17, oil radiator 31 With high-temperature level radiator 16；The entrance of the A/C evaporator 10 is connected with the outlet of the air-conditioner throttling valve 19, the air-conditioning The outlet of evaporator 10 is connected with the entrance of the double drive compressor of air conditioner 18.The power of the double drive compressor of air conditioner Source is divided into two parts.A part of power resources pass through the belt pulley on driven by engine crankshaft in the rotation of engine crankshaft Rotation, to drive the belt other end to rotate with the band wheel assembly of electromagnetic clutch, when the controller of compressor of air conditioner receives To air-conditioning request signal and engine is just closed electromagnetic clutch in the running, and the torque of engine crankshaft can be relayed to sky Adjust the Mechanical Driven mode on the power input axis of compressor.The power resources of another working method are in the electricity of power battery 20 Can, it is powered by power battery 20 to interior centrally-mounted driving, thus the electric drive mode for driving compressor of air conditioner to work.
The heat management system control method of hybrid power heavy motor truck of the invention, the warming-up including vehicle cold-start In the process, the cooling system control during normal vehicle operation and in vehicle stopping process, the cooling system control It is cooling to be divided into the control of high-temperature level cooling system, the control of low-temperature level cooling system and air conditioner cooling system control, the high-temperature level System control includes the control of high-temperature level cooling device water circulating cooling and the control of high-temperature level cooling device oil circulating cooling:
Wherein: cooling system controls in the warming-up process of vehicle cold-start:
High-temperature level cooling device water circulating cooling control process is as follows:
1a step, high-temperature level electric control pump 14 to avoid engine hot-spot the slow-speed of revolution (according to different engine feelings Condition determines revolving speed) mode operation, from engine cylinder cover 1 the first cooling cycle tube outlet flow out coolant liquid and start The coolant liquid that second cooling cycle pipeline flows out in machine cylinder body 2 successively passes through the first automatically controlled three-way ball valve 4, engine coolant master Runner 29, a entrance of the second automatically controlled three-way ball valve 11, the outlet b of the second automatically controlled 11 standard-sized sheet of three-way ball valve, the first ptc heater 12 and high-temperature level electric control pump 14 after the first cooling cycle line entry and engine in return engine cylinder cap 1 respectively Second cooling cycle line entry in cylinder body 2.The temperature acquired in the process according to temperature sensor A and temperature sensor B Signal, the ball valve for adjusting the first automatically controlled three-way ball valve 4 rotate angle, control the first cooling cycle pipeline and the second cooling cycle pipe The assignment of traffic of reason, so that coolant liquid and the heat exchange amount of engine cylinder cover 1 and second are cooling in the first cooling cycle pipeline of control The heat exchange amount of coolant liquid and engine cylinder body 2 in circulation line, so that the outlet coolant temperature ratio of the second cooling cycle pipeline The outlet coolant temperature of first cooling cycle pipeline is 5 DEG C high, realizes mentioning in warming-up process intake efficiency and air inflow The reduction of heat transfer loss in height and combustion process.
Cold Start engine temperature is low, and NOx emission concentration is relatively low, to prevent EGR from deteriorating burning, while to accelerate Warming-up process does not use EGR cooling, and initial first solenoid valve 5 and second solenoid valve 6 are in close state, and air blower 8 is due to the The closing of two solenoid valves 6 and close；The outlet c of second automatically controlled three-way ball valve 11 is complete to close, and coolant liquid is all passed through the first PTC and added Hot device 12, and the entrance for reentering high-temperature level electric control pump 14 heats cycle of engine；For accelerate warming-up process, first Ptc heater 12 heats coolant liquid with given power, reduces the oil consumption and pollutant emission under warming-up operating condition, accelerates warm Machine process makes total warm-up period shortening achieve the purpose that reduce fuel consumption, improve the thermal efficiency.To further save warming-up process Energy consumption, high-temperature level radiator fan 15 is in close state.
1b step, when the outlet coolant temperature for detecting the second cooling cycle pipeline and the first cooling cycle pipeline out When mouth coolant temperature reaches 85 DEG C or more, it is judged as that engine warm-up finishes, for the work for guaranteeing radiator fan and water pump Efficiency and heat dissipation effect, then the outlet b of the second automatically controlled three-way ball valve 11 in 1a step progressively closes off, and closes PTC heating Device 12, the c for being gradually opened the second automatically controlled three-way ball valve 11 are exported to standard-sized sheet, make to flow into the second automatically controlled three-way ball valve in 1a step 11 a entrance coolant liquid all flows through high-temperature level radiator 16 and high-temperature level by the outlet c of the second automatically controlled three-way ball valve 11 The in the entrance and engine cylinder body 2 of the first cooling cycle pipeline in return engine cylinder cap 1 is distinguished after electric control pump 14 The entrance of two cooling cycle pipelines.
The cooling oil circulation device course of work of high-temperature level is as follows:
2a step can realize the oil pressure of constant displacement pump using the automatically controlled lubricating oil pump 3 of discharge capacity is become with the smallest discharge capacity.Become discharge capacity Automatically controlled lubricating oil pump 3 flows into oil circuit after oil filter 32, each lubricating component of engine from the machine oil sucked in oil sump 34 The outlet b of a entrance, 13 standard-sized sheet of oil circuit triple valve of triple valve 13, machine oil come back to oil sump 34 and flow through entering for lubricating oil pump 3 Mouth enters to be recycled next time, is lubricated to each component of engine；
2b step, when detecting that oil temperature reaches 100 DEG C or more by temperature sensor E, judges that oil preheating is complete At, enter 5a step.
The course of work of low-temperature level cooling device is as follows:
3a step, when the cooling of Water-cooling circulating pipeline in the battery pack for detecting power battery 20 by temperature sensor C When liquid temperature is lower than 10 DEG C, automatically controlled shutter 33 is closed, and low-temperature level radiator fan 24 is closed, and surrounding air and low-temperature level is forbidden to dissipate Hot 25 heat convection of device reduces heat loss and Jie Wen energy consumption.The work of low-temperature level electric control pump 21 maintains low in minimum power state Warm grade coolant liquid circulation has certain flow rate, and the automatically controlled 22 entrance a of three-way ball valve of third is in the automatically controlled three-way ball valve 22 of standard-sized sheet, third Entrance b is in close state.At this time firstly, if motor 28 does not work in vehicle travel process, third solenoid valve 27 is closed It closes, the coolant liquid of Water-cooling circulating pipeline flows into the second ptc heater 26 from low-temperature level coolant liquid sprue 30 in power battery 20； When motor 28 works in vehicle travel process, then third solenoid valve 27 is opened, in power battery 20 in Water-cooling circulating pipeline Coolant liquid respectively from low-temperature level coolant liquid sprue 30 and by the Water-cooling circulating channel of third solenoid valve 27 and motor 28 go here and there Enter the second ptc heater 26 after the runner outflow of connection composition；
Then, super charge intercooler 23 is flowed through from the coolant liquid that the second ptc heater 26 flows out to exchange heat, it is cold after heat exchange But liquid successively back flows back into power after low-temperature level radiator 25, the automatically controlled three-way ball valve 22 of third flow back to low-temperature level electric control pump 21 The entrance of the Water-cooling circulating pipeline of battery 20 carries out circulating-heating to power battery 20；
Second ptc heater 26 preheats coolant liquid with given power, is flowed out by the second ptc heater 26 cold But liquid enters the heat exchange of super charge intercooler 23, sufficiently sharp by the heat energy transfer of air after pressurization into low-temperature level cooling circuit The warm of low-temperature level cooling circuit is further speeded up with this portion of energy；Subsequent coolant liquid is followed by high-temperature level radiator 25, a entrance of the automatically controlled three-way ball valve 22 of third, the outlet c and low-temperature level electric control pump 21, finally flow through the water cooling of power battery 20 Circulatory flow simultaneously carries out circulating-heating to power battery 20；Flow through in the process the coolant liquid of low-temperature level radiator 25 not with Outside air exchanges heat.
3b step closes the heating of the second ptc heater 26 after the temperature for detecting power battery 20 is higher than 15 DEG C Function, close low-temperature level electric control pump 21, preheating complete, into nominal situation under operational mode.
Cooling system controls when vehicle is run in normal conditions:
High-temperature level cooling device water circulating cooling control process is as follows:
A entrance and the c outlet of 4a step, the second automatically controlled three-way ball valve 11 are shown in a fully open operation, the second automatically controlled three-way ball The outlet b of valve 11 is in full off state.Firstly, from engine cylinder cover 1 the first cooling cycle pipeline flow out coolant liquid with And the coolant liquid that second cooling cycle pipeline flows out in engine cylinder body 2 passes through the first automatically controlled three-way ball valve 4, then a part passes through Engine coolant sprue 29 is crossed, another part flows through 7 pairs of cooler for recycled exhaust gas recycling by the first solenoid valve 5 opened Exhaust gas is cooled down, and NOx and pinking tendency are reduced；Subsequent coolant liquid imports a entrance of the second automatically controlled three-way ball valve 11, from the The coolant liquid that the outlet c of two automatically controlled three-way ball valves 11 is all flowed out carries out after sufficiently exchanging heat in high-temperature level radiator 16 with environment It is cold successively to back flow back into the entrance and engine cylinder body 2 of high-temperature level electric control pump 14 and the first cooling cycle pipeline second But the entrance of circulation line, coolant liquid is without the second ptc heater 12, in the process, by adjusting the first automatically controlled threeway Ball valve 4 rotates the outlet coolant rate of angular distribution engine cylinder cover 1 and engine cylinder body 2, makes the first cooling cycle pipeline The coolant temperature for exporting outflow is 5 DEG C lower than the coolant temperature that the second cooling cycle tube outlet flows out；This measure is not only reduced The heat transfer loss of engine cylinder body 2, while the degree that engine cylinder cover 1 heats inlet air due to high temperature is reduced, reduce Pumping loss.
The cooling oil circulation device course of work of high-temperature level is as follows:
5a step, lubricating oil pump 3 is according to engine condition, with the oil pressure demarcated and oil mass to the oil duct of engine cylinder body 2 Enter confession machine oil.Detailed process are as follows: machine oil is sucked out from oil sump 34, is successively passed through lubricating oil pump 3, oil filter 32, is started After each lubricating component of machine flow into oil circuit triple valve 13 a entrance, part machine oil from oil circuit triple valve 13 by b outlet flow out again into Enter oil sump 34, another part machine oil sequentially enters after oil radiator 31 again from the outlet the c of oil circuit triple valve 13 outflow Oil sump 34, lubricating oil pump 3 and circulation are lubricated each component of engine, pass through the outlet b and c to oil circuit triple valve 13 and export Fuel-flow control realize oil temperature control, when oil temperature be lower than 110 DEG C when reduce c outlet aperture, increase b outlet aperture, make Oil temperature increase, avoid as engine oil viscosity is excessive and caused by friction loss increase the drawbacks of；When oil temperature is higher than 130 DEG C, add The aperture of the big outlet c, reduces the aperture of the outlet b, and oil temperature reduction is made to avoid causing dry friction due to machine oil excess dilution, harmful The deficiency of engine life.It realizes the different temperatures demand under different load and engine operating condition, oil temperature management is arrived One higher level, reduce engine oil viscosity, reduce friction loss, reduce engine heat transfer loss, avoid machine oil consume excessively and The problems such as coking, realizes the requirement for meeting lubrication needs and minimum attachment power consumption under full working scope.
The course of work of low-temperature level cooling device is as follows:
6a step, when the electric discharge of power battery 20, motor 28 work, third solenoid valve 27 is opened.When environment temperature is lower than 0 DEG C when and when flowing through the coolant temperature in power battery 20 in Water-cooling circulating pipeline lower than 20 DEG C, since quantity of heat production is less, together When intake air temperature it is low, therefore close automatically controlled shutter 33, low-temperature level electric control pump 21 is still in closed state, low-temperature level radiation air Fan 24 is closed, and the thermal loss of battery pack is reduced.When environment temperature is not less than 0 DEG C, or when temperature sensor C collects power Coolant temperature is not less than 20 DEG C in 20 Water-cooling circulating pipeline of battery, or when temperature sensor D collects 28 Water-cooling circulating of motor When coolant temperature is higher than 25 DEG C in pipeline, automatically controlled shutter 33 is opened, and low-temperature level electric control pump is in lower-speed state, low-temperature level Radiator fan 24 is closed, and at this time by adjusting a entrance of the automatically controlled three-way ball valve 22 of third and the aperture of b entrance, works as power battery It is gradually increased the aperture of a entrance of the automatically controlled three-way ball valve 22 of third when coolant temperature increases in 20 Water-cooling circulating pipelines, reinforces Heat dissipation effect windward；When 20 Water-cooling circulating tube outlet coolant temperature of power battery is higher than 30 DEG C, a entrance standard-sized sheet is opened Low-temperature level radiator fan 24 is to bottom gear；When coolant temperature is higher than 40 DEG C or motor in the Water-cooling circulating pipeline of power battery 20 When coolant temperature is more than 50 DEG C in 28 Water-cooling circulating pipelines, low-temperature level radiator fan 24 is operated in top gear, and low-temperature level is automatically controlled Water pump 21, which runs at high speed, makes coolant liquid rapid cooling；Cooling system control in vehicle stopping process:
The control of high-temperature level water circle device:
7a step, when vehicle stops and after lower high-voltage electricity, conventional engines cooling system after engine stop, with hair The traditional water pump and conventional fan of motivation revolving speed coupling will be with the reduction of engine speed and reduce, therefore high-power operating Engine afterwards is shut down suddenly will likely cause " hot dipping ", seriously damage engine life.In high-temperature level cooling circuit, start Machine keeps high-temperature level electric control pump 14 with the rotary speed working 2min of minimum power consumption after shutting down, high-temperature level radiator fan 15 is closed, and prevents Only engine " hot dipping ".
The control of low-temperature level cooling device:
8a step, low-temperature level cooling circuit is since thermic load is smaller, automatically controlled shutter 33, low-temperature level radiator fan 24 and low Warm grade electric control pump 21 after electricity under vehicle with closing.
Air conditioner cooling system control under engine warm-up, nominal situation:
Crew module has control process when refrigeration demand:
9a step, in process of refrigerastion, second solenoid valve 6 is closed, and air blower 8 is opened, and is double drive by power battery 20 Dynamic compressor of air conditioner 18 provides electric energy and drives its operating, and the refrigerant in air conditioner cooling system passes through double drive compressor of air conditioner Increasing temperature and pressure after 18, and heat exchange is carried out with environment at air-conditioning condenser 17, the decompression of air-conditioner throttling valve 19 is flowed through after cooling, most Air blower 8 is blown into in A/C evaporator 10 air cooling-down of crew module eventually, and flows back to entering for double drive compressor of air conditioner 18 Mouth completes refrigeration cycle；
Crew module has control process when heating demand:
10a step, when occupant has heating demand, if engine does not work, the opening of second solenoid valve 6, the second electricity A entrance standard-sized sheet, the outlet b standard-sized sheet, the full pass in the outlet c, the high-temperature level electric control pump 14 for controlling three-way ball valve 11 work in minimum power consumption shape State, the coolant liquid of high-temperature level cooling circuit is cooling from first in engine cylinder cover 1 after high-temperature level electric control pump 14 at this time Second cooling cycle tube outlet flows out and converges into the first automatically controlled three-way ball valve in circulation line outlet and engine cylinder body 2 4, coolant liquid flows separately through the warm-air exchanger 9 on engine coolant sprue 29 and warm wind circuit.Air blower 8 is opened, will Coolant liquid and engine of the coolant liquid heat transfer into the air of entrance crew module, after then cooling down in warm-air exchanger 9 Coolant liquid in coolant liquid sprue 29 flows successively through the second automatically controlled three-way ball valve 11, the first ptc heater 12 and height after converging Warm grade electric control pump 14 completes heating circulation.The working method can meet the needs of engine warm-up and crew module's heating simultaneously.
When occupant has heating demand, engine operation and it is in warm-up mode, then enters 1a and walk, and by the second electromagnetism Valve 6 is opened, air blower 8 is opened, and the heat transfer in the coolant liquid for flowing through second solenoid valve 6, warm-air exchanger 9 is multiplied to entrance In the air in member cabin, and continued cycling through after converging with the coolant liquid of the outlet of engine coolant sprue 29；If engine operation And be in normal operating conditions, then enter 4a and walk, second solenoid valve 6 is opened, air blower 8 is opened, and will flow through second solenoid valve 6, the heat transfer in the coolant liquid of warm-air exchanger 9 is given into the air of crew module, and in engine coolant sprue 29, the coolant liquid of cooler for recycled exhaust gas outlet continues cycling through after converging, and completes warm wind supply.

Claims (3)

1. a kind of heat management system of hybrid power heavy motor truck, it is characterised in that: including high-temperature level cooling system, low temperature Grade cooling system and air conditioner cooling system；
The high-temperature level cooling system includes engine water cooling back installation and engine oil cooling back installation, described Engine water cooling back installation is divided into including the first automatically controlled three-way ball valve (4), and the two of the automatically controlled three-way ball valve of described first (4) A entrance is respectively by being provided with the first coolant line of temperature sensor A, being provided with the second coolant liquid of temperature sensor B The second cooling in the first cooling cycle tube outlet and engine cylinder body (2) in piping connection engine cylinder cover (1) follows Endless tube way outlet, the outlet of the automatically controlled three-way ball valve of described first (4) and engine coolant sprue (29), by the first electromagnetism EGR cooling circuit that valve (5) and cooler for recycled exhaust gas (7) are composed in series and by second solenoid valve (6) and warm-air exchanger (9) Entrance after the warm wind circuit being composed in series is converged is connected；It is provided with air blower (8) at warm-air exchanger (9), second After a entrance and engine coolant sprue (29), the EGR cooling circuit and warm wind circuit of automatically controlled three-way ball valve (11) converge Outlet be connected；
The b of the second automatically controlled three-way ball valve (11), which is exported, is sequentially connected the first PTC by engine coolant partial circulating branch It is divided into two-way after heater (12) and high-temperature level electric control pump (14), the first cooling connected in engine cylinder cover (1) all the way follows Ring line entry, another way connect the second cooling cycle line entry in engine cylinder body (2)；
The outlet c of the second automatically controlled three-way ball valve (11) is sequentially connected high-temperature level by engine coolant systemic circulation branch and dissipates It is divided into two-way after hot device (16) and high-temperature level electric control pump (14), connects the first cooling cycle in engine cylinder cover (1) all the way Line entry, another way connect the second cooling cycle line entry in engine cylinder body (2), and high-temperature level radiator fan (15) leans on Nearly high-temperature level radiator (16) setting；
The engine oil cooling back installation includes oil circuit triple valve (13), a entrance of the oil circuit triple valve (13) It exports with the oil circuit of engine cylinder body (2) and is connected by being equipped with the flow line of temperature sensor E, the oil circuit triple valve (13) c, which is exported, is sequentially connected oil radiator (31), oil sump (34), lubricating oil pump (3), machine oil by oil circuit systemic circulation pipeline The outlet b of the oil circuit entrance of filter (32) and engine cylinder body (2), the oil circuit triple valve (13) is followed by the way that oil circuit is small Oil circuit systemic circulation pipeline connection between endless tube road and oil radiator (31) and oil sump (34), oil radiator (31) setting In the outside of high-temperature level radiator (16)；
The low-temperature level cooling system includes the automatically controlled three-way ball valve of third (22), the c of the automatically controlled three-way ball valve of the third (22) Outlet by first circulation pipeline be sequentially connected low-temperature level electric control pump (21), the Water-cooling circulating pipeline in power battery (20), Temperature sensor C, third solenoid valve (27), the Water-cooling circulating pipeline of motor (28), temperature sensor D, the second ptc heater (26), a entrance of super charge intercooler (23), low-temperature level radiator (25) and the automatically controlled three-way ball valve of the third (22), Automatically controlled shutter (33) is located on the outside of radiator, and low-temperature level radiator fan (24) is located on the inside of radiator, low-temperature level partial circulating branch The one end on road and first circulation pipeline connection between air intake intercooler and the second ptc heater (26) and the other end with The b entrance of the automatically controlled three-way ball valve of third (22) is connected to, (30) import of low-temperature level coolant liquid sprue be located at temperature sensor C and First circulation pipeline connection and the other end between third solenoid valve (27) be located at motor (28) and the second ptc heater (26) the first circulation pipeline connection between, the work of the low-temperature level electric control pump (21) and low-temperature level radiator fan (24) Mode is divided into closing, bottom gear and top gear；
The air conditioner cooling system includes the outlet for the air-conditioning condenser (17) being sequentially connected by second circulation pipeline, air-conditioning section Flow the entrance of valve (19), A/C evaporator (10), double drive compressor of air conditioner (18) and air-conditioning condenser (17), air conditioner condensation Device (17) is arranged in the outside of high-temperature level radiator (16), installs on described double drive compressor of air conditioner (18) external input shaft There is the driven pulley assembly with electromagnetic clutch, driven pulley in the driven pulley assembly and on the crankshaft of engine Belt wheel by belt be connected, when the controller of compressor of air conditioner receives air-conditioning open signal and judges that engine is working When, the controller of compressor of air conditioner is closed the electromagnetic clutch；It is closed when the controller of compressor of air conditioner receives air-conditioning Electromagnetic clutch is disconnected when closing signal；The shaft of interior centrally-mounted driving is connected with the shaft of double drive compressor of air conditioner (18), The control line of interior centrally-mounted driving is connected with the controller of compressor of air conditioner, when the controller of compressor of air conditioner receives When air-conditioning open signal and engine shutdown, electromagnetic clutch is in an off state at this time, the controller of the compressor of air conditioner CRANK PULSES is exported by the inside centrally-mounted driving of control line, interior centrally-mounted driving rotation is controlled, to drive compressor of air conditioner Work；When the controller of compressor of air conditioner receives air-conditioning shutdown signal, the controller of the compressor of air conditioner is to built-in drive Dynamic motor output stalling signal controls interior centrally-mounted driving stalling；Where the power supply line of interior centrally-mounted driving and power battery (20) High pressure electrical circuit be connected, pass through the high-voltage electricity loop power supply where power battery (20).
2. the heat management system of hybrid power heavy motor truck according to claim 1, it is characterised in that: the machine Oil pump (3) is using the change automatically controlled lubricating oil pump of discharge capacity (3).
3. the heat management system controlling party of the hybrid power heavy motor truck using system described in one of claim 1-2 Method, the cooling system in the warming-up process including vehicle cold-start, during normal vehicle operation and in vehicle stopping process Control, the cooling system control are divided into the control of high-temperature level cooling system, the control of low-temperature level cooling system and air-conditioning cooling system System control, the high-temperature level cooling system control include the control of high-temperature level cooling device water circulating cooling and the cooling dress of high-temperature level Set oily circulating cooling control:
Wherein: cooling system controls in the warming-up process of vehicle cold-start:
High-temperature level cooling device water circulating cooling control process is as follows:
1a step, high-temperature level electric control pump (14) to avoid engine hot-spot slow-speed of revolution mode operation, from engine cylinder Cover the second cooling cycle pipeline in the coolant liquid and engine cylinder body (2) of the first cooling cycle tube outlet outflow in (1) The coolant liquid of outflow successively passes through the first automatically controlled three-way ball valve (4), engine coolant sprue (29), the second automatically controlled three-way ball The a entrance of valve (11), the outlet b of the second automatically controlled three-way ball valve (11) standard-sized sheet, the first ptc heater (12) and high-temperature level are automatically controlled Water pump (14) is afterwards respectively the in the first cooling cycle line entry and engine cylinder body (2) in return engine cylinder cap (1) Two cooling cycle line entries, the temperature signal acquired in the process according to temperature sensor A and temperature sensor B are adjusted The ball valve of first automatically controlled three-way ball valve (4) rotates angle, controls the stream of the first cooling cycle pipeline and the second cooling cycle management Amount distribution, to control the heat exchange amount and the second cooling cycle of coolant liquid and engine cylinder cover (1) in the first cooling cycle pipeline The heat exchange amount of coolant liquid and engine cylinder body (2) in pipeline, so that the outlet coolant temperature of the second cooling cycle pipeline is than The outlet coolant temperature of one cooling cycle pipeline is 5 DEG C high；
1b step, when the outlet of the outlet coolant temperature for detecting the second cooling cycle pipeline and the first cooling cycle pipeline is cold But when liquid temperature reaches 85 DEG C or more, it is judged as that engine warm-up finishes, then the second automatically controlled three-way ball valve in 1a step (11) the outlet b progressively closes off, and closes the first ptc heater (12), is gradually opened the c of the second automatically controlled three-way ball valve (11) It is exported to standard-sized sheet, makes to flow into a entrance coolant liquid of the second automatically controlled three-way ball valve (11) in 1a step by the second automatically controlled three-way ball The outlet c of valve (11) all flows through high-temperature level radiator (16) and high-temperature level electric control pump (14) and distinguishes return engine cylinder afterwards Cover the entrance of the second cooling cycle pipeline in the entrance and engine cylinder body (2) of the first cooling cycle pipeline in (1)；
The cooling oil circulation device course of work of high-temperature level is as follows:
2a step, the machine oil that lubricating oil pump (3) is sucked from oil sump (34) pass through oil filter (32), each lubrication portion of engine The outlet b of a entrance, oil circuit triple valve (13) standard-sized sheet of oil circuit triple valve (13) is flowed into after part, machine oil comes back to oil sump (34) and flow through lubricating oil pump (3) entrance enter recycle next time, each component of engine is lubricated；
2b step judges that oil preheating is completed when detecting that oil temperature reaches 100 DEG C or more by temperature sensor E, into Enter to 5a and walks；
The course of work of low-temperature level cooling device is as follows:
3a step, when the coolant liquid of Water-cooling circulating pipeline in the battery pack for detecting power battery (20) by temperature sensor C When temperature is lower than 10 DEG C, automatically controlled shutter (33) is closed, and low-temperature level radiator fan (24) is closed, low-temperature level electric control pump (21) work Make in minimum power state, maintaining low-temperature level coolant liquid to recycle has certain flow rate, at the automatically controlled three-way ball valve of third (22) entrance a It is in close state in standard-sized sheet, the automatically controlled three-way ball valve of third (22) entrance b, at this time firstly, if motor (28) is in vehicle driving mistake It does not work in journey, then third solenoid valve (27) is closed, and the coolant liquid of Water-cooling circulating pipeline is from low-temperature level in power battery (20) Coolant liquid sprue (30) flows into the second ptc heater (26)；When motor (28) works in vehicle travel process, then third Solenoid valve (27) is opened, and the coolant liquid in power battery (20) in Water-cooling circulating pipeline is respectively from low-temperature level coolant liquid sprue (30) and by the Water-cooling circulating Tandem of third solenoid valve (27) and motor (28) enter second after the runner outflow formed Ptc heater (26)；
Then, super charge intercooler (23) are flowed through from the coolant liquid that the second ptc heater (26) are flowed out to exchange heat, it is cold after heat exchange But liquid successively flows after low-temperature level radiator (25), the automatically controlled three-way ball valve of third (22) flow back to low-temperature level electric control pump (21) again The entrance for entering the Water-cooling circulating pipeline of power battery (20) carries out circulating-heating to power battery (20)；
3b step closes the heating function of the second ptc heater (26) after the temperature for detecting power battery (20) is higher than 15 DEG C Can, close low-temperature level electric control pump (21), preheating complete, into nominal situation under operational mode；
Cooling system controls when vehicle is run in normal conditions:
High-temperature level cooling device water circulating cooling control process is as follows:
A entrance and the c outlet of 4a step, the second automatically controlled three-way ball valve (11) are shown in a fully open operation, the second automatically controlled three-way ball valve (11) the outlet b is in full off state；Firstly, the coolant liquid flowed out from the first cooling cycle pipeline in engine cylinder cover (1) And the coolant liquid that the second cooling cycle pipeline flows out in engine cylinder body (2) passes through the first automatically controlled three-way ball valve (4), then one Engine coolant sprue (29) are passed through in part, and another part flows through cooler for recycled exhaust gas by the first solenoid valve (5) opened (7) exhaust gas of recycling is cooled down；Subsequent coolant liquid imports a entrance of the second automatically controlled three-way ball valve (11), from the second electricity The coolant liquid that the outlet c of control three-way ball valve (11) is all flowed out carries out after sufficiently exchanging heat in high-temperature level radiator (16) with environment It successively back flows back into the entrance and engine cylinder body (2) of high-temperature level electric control pump (14) and the first cooling cycle pipeline The entrance of two cooling cycle pipelines rotates angular distribution engine by adjusting the first automatically controlled three-way ball valve (4) in the process The outlet coolant rate of cylinder cap (1) and engine cylinder body (2), the coolant temperature for flowing out the first cooling cycle tube outlet Coolant temperature than the outflow of the second cooling cycle tube outlet is 5 DEG C low；
The cooling oil circulation device course of work of high-temperature level is as follows:
5a step, lubricating oil pump (3) is according to engine condition, with the oil pressure demarcated and oil mass to the oil duct of engine cylinder body (2) Enter confession machine oil；Detailed process are as follows: machine oil is sucked out from oil sump (34), successively passes through lubricating oil pump (3), oil filter (32), a entrance of oil circuit triple valve (13) is flowed into after each lubricating component of engine, part machine oil passes through from oil circuit triple valve (13) The outlet b outflow enters back into oil sump (34), and another part machine oil passes through oil radiator from the outlet oil circuit triple valve (13) c outflow (31) oil sump (34), lubricating oil pump (3) and circulation are sequentially entered after again to be lubricated each component of engine, by oil circuit three The fuel-flow control of the outlet b and the outlet c of port valve (13) realizes that the control of oil temperature reduces the outlet c when oil temperature is lower than 110 DEG C Aperture increases the aperture of the outlet b, increases oil temperature；When oil temperature is higher than 130 DEG C, the aperture of the outlet c is increased, reduces the outlet b Aperture；
The course of work of low-temperature level cooling device is as follows:
6a step, when power battery (20) electric discharge, motor (28) work, third solenoid valve (27) is opened；When environment temperature is low When 0 DEG C and when flowing through the coolant temperature in power battery (20) in Water-cooling circulating pipeline lower than 20 DEG C, automatically controlled blinds is closed Window (33), low-temperature level electric control pump (21) are closed still in closed state, low-temperature level radiator fan (24)；When environment temperature is not low It is not less than 20 DEG C when 0 DEG C, or when temperature sensor C collects coolant temperature in power battery (20) Water-cooling circulating pipeline, Or when temperature sensor D collects in motor water cooling circulation line coolant temperature and is higher than 25 DEG C, automatically controlled shutter (33) is beaten It opens, low-temperature level electric control pump (21) is in lower-speed state, and low-temperature level radiator fan (24) is closed, automatically controlled by adjusting third at this time The a entrance of three-way ball valve (22) and the aperture of b entrance, when coolant temperature increases in power battery (20) Water-cooling circulating pipeline It is gradually increased the aperture of a entrance of the automatically controlled three-way ball valve of third (22)；When power battery (20) Water-cooling circulating tube outlet is cooling When liquid temperature is higher than 30 DEG C, a entrance standard-sized sheet of the automatically controlled three-way ball valve of third (22) opens low-temperature level radiator fan (24) to low speed Gear；When coolant temperature is higher than coolant liquid in 40 DEG C or motor water cooling circulation line in the Water-cooling circulating pipeline of power battery (20) When temperature is more than 50 DEG C, low-temperature level radiator fan (24) top gear operate, low-temperature level electric control pump (21) run at high speed make it is cold But liquid rapid cooling；Cooling system control in vehicle stopping process:
The control of high-temperature level water circle device:
7a step, in high-temperature level cooling circuit, engine keeps high-temperature level electric control pump (14) with minimum power consumption after shutting down Rotary speed working 2min, high-temperature level radiator fan (15) are closed；
The control of low-temperature level cooling device:
8a step, low-temperature level cooling circuit is since thermic load is smaller, automatically controlled shutter (33), low-temperature level radiator fan (24) and low Warm grade electric control pump (21) after electricity under vehicle with closing；
Air conditioner cooling system control under engine warm-up, nominal situation:
Crew module has control process when refrigeration demand:
9a step, in process of refrigerastion, second solenoid valve (6) is closed, and it is double by power battery (20) that air blower (8), which is opened, Driving compressor of air conditioner (18) provides electric energy and drives its operating, and the refrigerant in air conditioner cooling system passes through double drive air-conditioning pressure Contracting machine (18) increasing temperature and pressure afterwards, and heat exchange is carried out with environment at air-conditioning condenser (17), air-conditioner throttling valve is flowed through after cooling (19) it is depressured, air blower (8) is finally blown into the air cooling-down of crew module in A/C evaporator (10), and flow back to double drive sky The entrance of compressor (18) is adjusted to complete refrigeration cycle；
Crew module has control process when heating demand:
10a step, when occupant has heating demand, if engine does not work, second solenoid valve (6) is opened, is second automatically controlled A entrance standard-sized sheet, the outlet b standard-sized sheet, the full pass in the outlet c, the high-temperature level electric control pump (14) of three-way ball valve (11) work in minimum power consumption State, the coolant liquid of high-temperature level cooling circuit is after high-temperature level electric control pump (14) from engine cylinder cover (1) at this time The second cooling cycle tube outlet flows out and converges automatically controlled into first in one cooling cycle tube outlet and engine cylinder body (2) Three-way ball valve (4), coolant liquid flow separately through the warm-air exchanger (9) on engine coolant sprue (29) and warm wind circuit； Air blower (8) is opened, and by the coolant liquid heat transfer in warm-air exchanger (9) to entering in the air of crew module, is then cooled down The coolant liquid in coolant liquid and engine coolant sprue (29) afterwards flows successively through the second automatically controlled three-way ball valve after converging (11), the first ptc heater (12) and high-temperature level electric control pump (14) complete heating circulation；
When occupant has heating demand, engine operation and it is in warm-up mode, then enters 1a and walk, and by second solenoid valve (6) open, air blower (8) open, by the heat transfer in the coolant liquid for flowing through second solenoid valve (6), warm-air exchanger (9) to It is continued cycling through into the air of crew module, and after converging with the coolant liquid of engine coolant sprue (29) outlet；If hair Motivation works and is in normal operating conditions, then enters 4a and walk, and second solenoid valve (6) unlatching, air blower (8) opening will flow It gives through the heat transfer in second solenoid valve (6), the coolant liquid of warm-air exchanger (9) into the air of crew module, and in hair The coolant liquid that motivation coolant liquid sprue (29), cooler for recycled exhaust gas (7) export continues cycling through after converging, and completes warm wind supply.
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