CN108860136A - A kind of control system and control method for vehicle - Google Patents
A kind of control system and control method for vehicle Download PDFInfo
- Publication number
- CN108860136A CN108860136A CN201810542155.6A CN201810542155A CN108860136A CN 108860136 A CN108860136 A CN 108860136A CN 201810542155 A CN201810542155 A CN 201810542155A CN 108860136 A CN108860136 A CN 108860136A
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- Prior art keywords
- engine
- motor
- temperature
- fan
- vehicle
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W20/00—Control systems specially adapted for hybrid vehicles
- B60W20/20—Control strategies involving selection of hybrid configuration, e.g. selection between series or parallel configuration
-
- 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
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
- B60W10/04—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units
- B60W10/08—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of electric propulsion units, e.g. motors or generators
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
- B60W10/30—Conjoint control of vehicle sub-units of different type or different function including control of auxiliary equipment, e.g. air-conditioning compressors or oil pumps
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2510/00—Input parameters relating to a particular sub-units
- B60W2510/06—Combustion engines, Gas turbines
- B60W2510/0676—Engine temperature
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2510/00—Input parameters relating to a particular sub-units
- B60W2510/24—Energy storage means
- B60W2510/242—Energy storage means for electrical energy
- B60W2510/244—Charge state
Abstract
The present invention provides a kind of control system and control method for vehicle, is related to vehicle heat management system field, wherein control system includes fan；Motor；Engine；Temperature sampler, the temperature of the engine coolant for acquiring vehicle；Comparator is connected with temperature sampler, for engine coolant temperature to be compared with the minimum temperature of coolant liquid when engine start；And controller, it is connected with comparator, for whether being preheated or being cooled down to engine according to the comparison result control motor of engine coolant temperature and coolant liquid minimum temperature when engine start and control whether fan works.The present invention solves the problems, such as that heat management system can not promote engine temperature rapidly and cause mixed motor-car heat management system cooling efficiency low in the prior art.
Description
Technical field
The present invention relates to vehicle control system fields, more particularly to a kind of control system and controlling party for vehicle
Method.
Background technique
Hybrid power is to be different from conventional gasoline power and electrically driven (operated) hybrid vehicle, hybrid power driving principle,
Driving unit is all no different with electric vehicle, why is called hybrid vehicle, be because its battery capacity compare it is larger,
It can use external electrical network to charge the battery, can be travelled with pure power mode.In vehicle travel process, engine, motor
Amount of heat will be all generated during the work time with components such as batteries, so that the temperature of these power parts constantly increases, and be sent out
This requires hybrid vehicles to need to be equipped with a set of difference for motivation, the working efficiency of motor and battery, working life and work
In the cooling system of orthodox car, this set cooling system can guarantee the temperature control by engine, motor and battery at work
Within a reasonable range.
Existing hybrid power heat management system is simpler, does not generally carry out layering cooling to hybrid power components, because
This, can not preheat the engine of not up to assigned temperature, so that the cooling efficiency of entire hybrid system is lower, to make
The energy consumption of vehicle is higher.
Summary of the invention
It is an object of the present invention to provide a kind of control method and control system for vehicle, to solve existing skill
The control method of heat management system can not promote engine temperature rapidly and lead to the cooling effect of mixed motor-car heat management system in art
The low problem of rate.
Another object of the present invention is the energy consumption of vehicle hybrid system to be reduced.
Particularly, the present invention provides a kind of control systems for vehicle, wherein including：
Motor；
Engine；
Fan；
Temperature sampler, the temperature of the engine coolant for acquiring the vehicle；
Comparator is connected with the temperature sampler, for by the temperature of the engine coolant and the engine
The minimum temperature of coolant liquid is compared when starting；With
Controller is connected with the comparator, for being opened according to the temperature of the engine coolant with the engine
Whether the comparison result control motor of coolant liquid minimum temperature is preheated or is cooled down to the engine and described in controlling when dynamic
Whether fan works.
It further, further include engine electromagnetic valve and motor electromagnetic valve, and the motor electromagnetic valve is configured to described
It is connected to when motor preheats the engine with the engine electromagnetic valve, passes through the coolant liquid in the motor in it
Portion flows through the engine electromagnetic valve and enters in the engine, preheats to the engine.
It further, further include condenser, thermostat, radiator and engine water pump, the motor electromagnetic valve includes the
One solenoid valve and second solenoid valve；
First solenoid valve is configured to when the engine and the motor start independent cooling respectively, with the hair
Motivation solenoid valve disconnects, and is back to the coolant liquid in the motor by the condenser, the second solenoid valve described
In motor；With
The thermostat is configured to start independent cooling respectively in the engine and the motor and the engine is cold
But it is remained turned-off when the temperature of liquid is lower than the first preset temperature, makes the in-engine coolant liquid by the thermostat, institute
It states engine water pump to be back in the engine, or starts the independent cooling and described hair respectively in the engine and the motor
The temperature of motivation coolant liquid is opened when being greater than or equal to first preset temperature, makes the in-engine coolant liquid by institute
Thermostat, the engine electromagnetic valve, the radiator, the engine water pump is stated to be back in the engine.
Further, first solenoid valve is configured to when the engine and the motor carry out connecting cooling, with
The engine electromagnetic valve disconnects, and returns the coolant liquid in the motor by the condenser, the second solenoid valve
In to the motor；With
The thermostat is configured to the unlatching when the engine and the motor carry out connecting cooling, makes the engine
Interior a part of coolant liquid is back in the engine by the thermostat, the engine water pump, and makes the engine
Interior another part coolant liquid is back to described start by the engine electromagnetic valve, the radiator, the engine water pump
In machine；Wherein, by passing through the condenser in the part coolant liquid of the engine water pump and the motor and flowing to described
Coolant liquid at second solenoid valve is back in the motor after being mixed.
It further, further include electric quantity collector and power battery, the electric quantity collector is for detecting the power electric
The remaining capacity in pond；
The comparator arrangement at by the remaining capacity of the present battery and the vehicle under pure motor driving mode
Minimum remaining capacity be compared；
The controller is configured to according to the present battery remaining capacity and the minimum residue under pure motor driving mode
The comparison result of electricity determines the driving mode of the mixed motor-car.
Further, the comparator arrangement is in systemic circulation work with the engine respectively at by the temperature of the motor
The temperature of minimum temperature, the fan when making is compared；
The controller is configured to be in the engine respectively according to the temperature of the motor when systemic circulation works
Minimum temperature, the fan temperature comparison result control the motor independently whether cooling, described engine be in systemic circulation
Operating mode or partial circulating operating mode or in the refrigerating mode that is connected in series with the motor and the control fan whether
Work.
Further, the comparator is configured to the remaining capacity of the present battery and the motor to the hair
Minimum amount of power needed for motivation preheating is compared；
The controller is configured to pre- to the engine according to the remaining capacity of the present battery and the motor
Whether the comparison result control motor of the required minimum amount of power of heat is independently cooling or whether controls the motor to the hair
Motivation is preheated, and is controlled the fan and do not worked.
Further, the comparator is configured to the temperature in the case where the vehicle is in mixed dynamic driving mode to the motor
Degree is compared with the temperature of the engine coolant；
The controller is configured to according to the temperature of the motor knot compared with the temperature of the engine coolant
Whether fruit controls the motor to the engine prewarming, and controls whether the fan works.
The present invention also provides a kind of control methods for vehicle, wherein including：
Compare the remaining capacity and minimum residue of the vehicle under pure motor driving mode of the vehicle present battery
Electricity；
The driving mode for determining the vehicle according to the result of the comparison is pure motor driving mode or mixed dynamic driving mode；
Judge the minimum temperature of coolant liquid when whether the temperature of the engine coolant of the vehicle is greater than engine start；
When the temperature of the engine coolant is not more than engine start when the minimum temperature of coolant liquid, motor is determined
Whether engine preheat and determines whether fan works；
The minimum temperature of coolant liquid and the vehicle when the temperature of the engine coolant is greater than engine start
When driving mode is the pure motor driving mode, determines the cooling of motor independence and fan does not work, or is cold in the engine
But the driving mode of the minimum temperature of coolant liquid and the vehicle is the mixed dynamic traveling when temperature of liquid is greater than engine start
Determine whether motor carries out cooling and determine whether fan works to engine when mode.
Further, the minimum temperature of coolant liquid when the temperature in the engine coolant is greater than engine start
When, the vehicle determines whether motor carries out whether cooling and fan works to engine under mixed dynamic driving mode, including：
Judge whether the temperature of motor is greater than minimum temperature when engine is in systemic circulation work；
Judge whether the temperature of motor is greater than the temperature of the fan；
Minimum temperature, the judging result of fan temperature when being in systemic circulation work with engine respectively according to the temperature of motor
Determine the motor whether independently cooling, engine be in systemic circulation operating mode or partial circulating operating mode or with the motor
Whether series connection refrigerating mode and the determining fan work.
Beneficial effects of the present invention can be：
Firstly, control system of the invention is acquired engine coolant temperature by temperature sampler, then lead to
It crosses comparator and is compared temperature sampler temperature collected with the minimum temperature of coolant liquid when engine start, finally control
Device processed controls whether motor is preheated or cooled down to engine according to comparator institute's comparison result, while whether controlling fan
Work.In this way, control system of the invention is in combination with the unlocking condition of motor and fan control motor, engine and fan
Operating mode, so that the control of the operating temperature of engine and motor is in a reasonable range, it is mixed dynamic so as to improve
The cooling efficiency of vehicle heat management system, to reduce the energy consumption of vehicle hybrid system.Therefore, it solves hot in the prior art
Management can not promote engine temperature rapidly and cause to mix the low problem of motor-car heat management system cooling efficiency.
Secondly, control system of the invention passes through the operating mode of motor electromagnetic valve and engine electromagnetic valve, electricity may make
Machine preheats engine or motor is individually cooled down with engine or motor is connected with engine, and progress is cold
But, to make the control of the operating temperature of engine and motor in more reasonable model according to the different working modes of motor, engine
In enclosing, so as to greatly improve the cooling efficiency of mixed motor-car heat management system.
Furthermore since control system or control method also include to be in systemic circulation work with engine respectively to motor temperature
The comparison that minimum temperature, fan temperature when making carry out, to determine motor whether independently cooling, hair according to the result of the comparison respectively
Motivation be in systemic circulation operating mode or partial circulating operating mode or connect with motor refrigerating mode and determine fan whether work
Make, to allow the heat management system of mixed motor-car to be cooled down in different working modes.That is, control of the invention
Method or control system processed can be in combination with the unlocking condition setting temperature ladders of motor, the large and small circulation of engine and fan
Degree, with further refining temperature control method, achieve the purpose that further increase heat management system cooling efficiency, so as into
The energy consumption of one step reduction vehicle hybrid system.
Detailed description of the invention
Some specific embodiments of the present invention is described in detail by way of example and not limitation with reference to the accompanying drawings hereinafter.
Identical appended drawing reference denotes same or similar part or part in attached drawing.It should be appreciated by those skilled in the art that these
What attached drawing was not necessarily drawn to scale.In attached drawing：
Fig. 1 is a kind of schematic block diagram of control system for vehicle according to an embodiment of the invention；
Fig. 2 is a kind of schematic block diagram of control system for vehicle in accordance with another embodiment of the present invention；
Fig. 3 is a kind of schematic diagram of control system for vehicle accord to a specific embodiment of that present invention；
Fig. 4 is a kind of schematic structure of control system for vehicle of another specific embodiment according to the present invention
Figure；
Fig. 5 is a kind of schematic diagram of control system for vehicle of third specific embodiment according to the present invention；
Fig. 6 is a kind of schematic flow chart of control method for vehicle accord to a specific embodiment of that present invention；
Fig. 7 is a kind of schematic flow chart of control method for vehicle according to an embodiment of the invention；
Fig. 8 is a kind of schematic flow chart of control method for vehicle in accordance with another embodiment of the present invention；
Fig. 9 is a kind of schematic flow chart of control method for vehicle of third embodiment according to the present invention；
Figure 10 is a kind of schematic flow chart of control method for vehicle of the 4th embodiment according to the present invention.
Specific embodiment
Fig. 1 is a kind of schematic block diagram of control system for vehicle according to an embodiment of the invention, with
Engine temperature can not be promoted rapidly and cause mixed motor-car heat management system cooling efficiency low by solving heat management in the prior art
The problem of.The control system of the present embodiment may include motor 1, engine 2, fan 8, the engine coolant for acquiring vehicle
The temperature sampler 4 of temperature, the comparator 5 being connected with temperature sampler 4, for by the temperature and engine of engine coolant
The minimum temperature of coolant liquid is compared when starting.It further include the controller 6 being connected with comparator 5, for cold according to engine
But whether the comparison result control motor of coolant liquid minimum temperature preheats engine when the temperature and engine start of liquid
Or whether cooling and control fan 8 works.Since the control system of the present embodiment passes through temperature sampler 4 to engine coolant
Temperature is acquired, and then by comparator 5, by the temperature collected of temperature sampler 4 and when engine start, coolant liquid is most
Low temperature is compared, and it is pre- whether last controller 6 carries out engine 1 according to 5 comparison result control motors 2 of comparator
Heat is cooling, while controlling whether fan 8 works.In this way, the open strip of control system of the invention in combination with motor and fan
Part controls the operating mode of motor, engine and fan, so that the control of the operating temperature of engine and motor is closed at one
In the range of reason, so as to improve the cooling efficiency of mixed motor-car heat management system, to reduce vehicle hybrid system
Energy consumption.Therefore, can solve heat management in the prior art can not promote engine temperature rapidly and lead to mixed motor-car heat management
The low problem of system cooling efficiency.
In the above-described embodiments, as shown in Fig. 2, control system may also include the electricity of the remaining capacity for detecting vehicle
Collector 3 and power battery 7.And comparator 5 then can be configured to the remaining capacity of present battery and vehicle in pure motor driving
Minimum remaining capacity under mode is compared.Controller 6 then can be configured to according to present battery remaining capacity and in pure electric vehicle
The comparison result of minimum remaining capacity determines the driving mode of mixed motor-car under driving mode.In this way, the control system of the present embodiment
System can combine the unlocking condition of motor and fan that temperature gradient is arranged in the case where vehicle is in different driving modes, with essence
The control of refining temperature, so that the cooling efficiency of mixed motor-car heat management system is improved, to reduce vehicle hybrid system
Energy consumption.
For the control of further refining temperature, comparator 5 may be additionally configured to by the temperature of motor 2 respectively with engine 1
Minimum temperature, the temperature of fan when in systemic circulation work are compared.Controller 6 then can be configured to the temperature according to motor 2
Whether the comparison result of minimum temperature, fan temperature when degree is in systemic circulation work with engine 1 respectively controls motor 2 independent
Cooling, engine be in systemic circulation operating mode or partial circulating operating mode or in the refrigerating mode being connected in series with motor and
Whether control fan works.
For temperature gradient is further arranged, comparator 5 be may be additionally configured to the remaining capacity of present battery and 2 pairs of motor hairs
Motivation 1 preheats required minimum amount of power and is compared.Controller 6 then can be configured to the remaining capacity and motor according to present battery
Whether the comparison result control motor that 2 pairs of engines 1 preheat required minimum amount of power independently cools down or whether controls the motor
The engine is preheated, and controls fan and does not work.In addition, comparator 5 may be additionally configured to be in mixed dynamic row in vehicle
It sails and motor temperature is compared with the temperature of engine coolant under mode.Controller 6 then may be additionally configured to according to motor temperature
Whether degree and the comparison result of engine coolant temperature control motor to engine prewarming, and control whether fan works.
Since the control system of above-described embodiment includes to be in systemic circulation work with engine 1 respectively to 2 temperature of motor
When minimum temperature, the comparison that carries out of fan temperature, to determine whether motor 2 independent cooling, hair according to the result of the comparison respectively
Motivation 1 be in systemic circulation operating mode or partial circulating operating mode or connect with motor 2 refrigerating mode and determine fan whether
Work, to allow the heat management system of mixed motor-car to be cooled down in different working modes.That is, above-mentioned implementation
Temperature gradient can be arranged in combination with the unlocking condition of the large and small circulation of motor, engine and fan in the control system of example, with into
Step refining temprature control method achievees the purpose that further increase heat management system cooling efficiency, so as to further drop
The energy consumption of low vehicle hybrid system.
In a specific embodiment, it is illustrated in combination with Fig. 6, when vehicle is with hybrid power HEV mode traveling, and
And (State of Charge, battery dump energy can be by electric quantity collector 3 to power electric for the remaining capacity SOC of power battery
The remaining capacity in pond is detected) it is greater than or equal to motor to electricity SOC required for engine prewarmingPreheat minWhen, entire car controller
VCU reads engine coolant temperature TEngine(can also be acquired by temperature of the temperature sampler 4 to engine coolant), when
TEngineMinimum temperature T when greater than engine startEngine start minWhen, vehicle VCU continues reading motor temperature (can also be adopted by temperature
Storage 4 is acquired motor temperature).Work as TMotorTemperature T when less than or equal to engine progress systemic circulationSystemic circulation(engine is in
Minimum temperature when systemic circulation works) when, motor and engine independently cool down, and fan does not work.Work as TMotorIt is greater than
Cooling fan starts maximum temperature TFan MAXWhen, motor and engine independently cool down, and engine can carry out systemic circulation cooling,
Fan work.Work as TMotorTemperature T when greater than engine progress systemic circulationSystemic circulationWhen, motor and engine series connection cool down, and fan is not
Work.Work as TEngineMinimum temperature T when less than or equal to engine startEngine start minWhen, vehicle VCU continues to read motor temperature,
Work as TMotorMore than or equal to engine temperature TEngineWhen, motor is to engine prewarming, and fan does not work.Work as TMotorLess than engine
Temperature TEngineWhen, motor and engine series connection cooling, fan do not work.That is, the operating mode in the present embodiment is main
Three kinds can be divided into.
The first, motor preheating mode, i.e. motor are given to engine prewarming at this point, motor temperature is in low-temperature condition simultaneously
Engine prewarming can be rapidly heated together with engine, to be rapidly achieved suitable operating temperature range.The second, independent cooling
Mode, i.e. engine are independently cooled down with motor, at this point, engine can be cooling by radiator by systemic circulation, motor is then
Can be cooling by condenser, the temperature of motor is in the state of moderate temperature at this time.Third, series connection refrigerating mode, i.e. engine
It is cascaded and is cooled down with motor, at this point, motor is in the condition of high temperature, after replacing temperature by radiator, condenser, by
Fan promotes air to accelerate flowing, to take away heat engine is cooled down with motor.
It is specifically described, is illustrated in conjunction with Fig. 3 or Fig. 4 or Fig. 5, the present embodiment in combination with cooling line structure below
Control system may also include engine electromagnetic valve 13 and motor electromagnetic valve 22, and motor electromagnetic valve 22 be configured to it is right in motor 2
It is controllably connected to engine electromagnetic valve 13 when engine 1 is preheated, makes the coolant liquid in motor 2 by flowing through hair inside it
Motivation solenoid valve 13 enters in engine 1, preheats to engine 1.Wherein, motor electromagnetic valve 22 and engine electromagnetic valve 13
Working condition can be controlled by controller 6, can also be controlled by vehicle VCU.
I.e. when starting motor preheating mode, water route working cycles are as shown in figure 3, i.e. motor preheating mode waterway circulating shows
It is intended to.When engine 1 just starts, the temperature of engine 1 is lower, and the temperature of engine coolant can generally be lower than thermostat
Opening temperature (can be 95 DEG C or so), at this point, engine 1 carries out partial circulating work.Simultaneously vehicle VCU may determine that motor to
(engine 1 can also be preheated by electricity and motor 2 of the comparator 5 to power battery 7 here required after engine prewarming mode
Minimum amount of power is compared, and is compared the coolant temperature of engine 1 and the minimum temperature of coolant liquid when the starting of engine 1
Relatively etc., motor 2 is controlled according to the comparison result of comparator 5 finally by controller 6, engine 1 is preheated, it is specific to control
Method process can be shown in the working principle of the control system as described in any of the above-described embodiment), instruction is issued, is started with control
The on-off of electromechanical magnet valve 13 and two motor electromagnetic valves 22.Coolant liquid in motor passes through motor electromagnetic valve 22 and engine electromagnet
Valve 13 enters the cylinder body of engine 1, and warm-up the engine 1 is so that it is rapidly heated, then by motor electromagnetic valve 22 to flow back to motor cold
But in system.Entire cycle of engine without radiator 11, motor cycle then without condenser 23, so as to so as to start
Temperature rapid increase for machine 1.
In the above-described embodiments, control system may also include condenser 23, thermostat 10, radiator 11 and engine water pump
12, motor electromagnetic valve 22 may include that the first solenoid valve (is located at the motor electromagnetic valve above motor and being connected to the motor in such as Fig. 3
With) second solenoid valve (being located at the motor electromagnetic valve below motor and being connected to the motor in such as Fig. 3).First solenoid valve is configured to
Engine 1 and motor 2 are controllably disconnected with engine electromagnetic valve 13 when starting independent cooling respectively, are made cold in motor 2
But liquid is back in motor 2 by condenser 23, second solenoid valve.Thermostat 10 can be configured to open respectively in engine 1 and motor 2
It is remained turned-off when independent cooling and the engine coolant temperature of beginning are lower than the first preset temperature, passes through the coolant liquid in engine 1
Cross thermostat 10, engine water pump 12 is back in engine 1, or start respectively independent cooling in engine 1 and motor 2 and start
Machine coolant temperature is opened when being greater than or equal to the first preset temperature, is made the coolant liquid in engine 1 by thermostat 10, is started
Electromechanical magnet valve 13, is back in engine by thermostat 10 radiator 11 again.Wherein, the first preset temperature can be 85-100
DEG C, or can be 95 DEG C or so.
I.e. when starting independent cooling die formula, water route working cycles are as shown in figure 4, i.e. independent cooling die formula waterway circulating shows
It is intended to.When motor 2 makes engine 1 reach appropriate working temperature (such as 85 to the 1 preheated one-section time of engine or by other measures
DEG C or so) when, vehicle VCU can determine whether that engine and motor carry out that independent cooling (specific control method process or principle can respectively
Shown in working principle referring to control system described in any of the above-described embodiment), and instruction is issued, control engine electromagnetic valve
13 and two 22 on-off of motor electromagnetic valve, so that engine 1 and motor 2 be made to start independently to cool down.
Wherein, in motor independence cooling cycle pipeline, coolant liquid is by first motor electromagnetic valve 22, condenser 23, the
Two motor electromagnetic valves 22 are flowed back to again in motor 2.And in engine independence cooling cycle pipeline, engine cool can be divided into two
Circulation：First, when 95 DEG C of 85 DEG C≤coolant temperature T <, thermostat 10 is not turned on, and engine 1 still carries out partial circulating, that is, is sent out
Coolant liquid in motivation flows back to engine 1 through thermostat 10 (thermostat pedestal), engine water pump 12；Second, when coolant liquid temperature
When spending T >=95 DEG C, thermostat 10 is opened, and engine 1 carries out systemic circulation, and in-engine coolant liquid is through thermostat 10, engine
Solenoid valve 13, radiator 11, thermostat 10 flow back in engine 1, so as to the engine coolant in higher temperature
Fast cooling is carried out, remains engine within the scope of appropriate working temperature, to improve the cooling efficiency of vehicle.
In above-mentioned further embodiment, the first solenoid valve may be additionally configured to connect in engine 1 and motor 2 cold
It is controllably disconnected with engine electromagnetic valve 13 when but, returns the coolant liquid in motor 2 by condenser 23, second solenoid valve
To motor 2.Thermostat 10 can be configured to controllably open when engine 1 and motor 2 carry out connecting cooling, make in engine
A part of coolant liquid be back in engine 1 by thermostat 10, engine water pump 12, and make another part in engine 1
Coolant liquid is back in engine 1 by engine electromagnetic valve 13, radiator 11, engine water pump 12；And flow through engine water
The part coolant liquid of pump 12 mix being back to electricity with the interior coolant liquid passing through condenser 23 and flowing at second solenoid valve of motor 2
In machine 2.
I.e. when refrigerating mode is connected in starting, water route working cycles are as shown in figure 5, series connection refrigerating mode waterway circulating signal
Figure.When vehicle is operated with high power, the temperature of engine 1 and motor 2 is persistently overheating, when coolant temperature is opened higher than thermostat
When opening temperature (such as 95 DEG C), thermostat 10 is opened, and systemic circulation is walked in engine water route；As motor temperature TMotorMore than or equal to starting
When machine coolant liquid systemic circulation temperature (such as 95 DEG C or so), vehicle VCU can determine whether that motor 2 and engine 1 carry out tandem working mode
(specific control method process or principle can be found in shown in the working principle of control system described in any of the above-described embodiment), hair
It instructs out, controls the on-off of 13, two motor electromagnetic valves 22 of engine electromagnetic valve.Since thermostat 10 has been turned at this time, hair
Motivation walks systemic circulation, and when the coolant liquid in engine 1 passes through gas saver pedestal, a part of coolant liquid is flowed by engine water pump 12
Motivation 1 is postbacked, in addition some enters radiator 11 by engine electromagnetic valve 13, flows back to engine again by thermostat 10
1.When flowing back to engine 1 by gas saver pedestal, some coolant liquid flows into motor 2 by motor electromagnetic valve 22；Motor 2
Interior coolant liquid enters condenser 23 by first motor electromagnetic valve 22, when by second motor triple valve 22, and starts
Machine coolant liquid mixed flow telegram in reply machine 2.In this way, may be implemented the coolant liquid of engine and the coolant liquid in motor mix it is common cooling
The purpose of liquid, to realize series connection cooling, to quickly reduce the temperature of coolant liquid.
In this way, control system described in above-mentioned section Example can pass through motor electromagnetic valve 22 and engine electromagnetic valve 13
Operating mode may make that motor 2 preheats engine 1 or motor 2 is individually cooled down with engine 1, or electricity
Machine 2 is connected with engine 1 and is cooled down, according to the different working modes of motor 2, engine 1, to make engine 1 and motor 2
Operating temperature controls in more reasonable range, i.e., temperature is arranged in combination with the unlocking condition of motor and fan in control system
Gradient, to refine the control of temperature.Such as, control system may include having basic, normal, high temperature control, i.e., in low temperature, can lead to
Motor is crossed to preheat engine；When medium temperature, motor is independently cooled down with engine；And when high temperature, motor can with start
Machine carries out series connection cooling.In this way, the cooling efficiency of motor can be promoted by three kinds of different types of cooling, to promote the cold of vehicle
But efficiency, so as to further decrease the energy consumption of automotive power.
In any of the above-described embodiment, mixed minimum remaining capacity of the motor-car under pure motor driving mode can be
The remaining capacity of 10-20%.The minimum temperature of coolant liquid can be 70-80 DEG C when engine start, or can be 75~80
℃).Motor 2 to engine 1 preheat required minimum amount of power can according to the power of motor 2 and 1 budget power consumption equivalent of engine into
Row calculates gained, no to determine value).Minimum temperature when engine 1 is in systemic circulation work can be 85-100 DEG C, or can
Think 92~95 DEG C.
Based on control system described in any of the above-described embodiment, a kind of control for vehicle is can also be provided in the present embodiment
Method, as shown in fig. 7, control method may include：
S100. compare the minimum remaining electricity of the remaining capacity and vehicle of vehicle present battery under pure motor driving mode
Amount；
S200. the driving mode for determining vehicle according to the result of the comparison is pure motor driving mode or mixed dynamic driving mode；
S300. judge the lowest temperature of coolant liquid when whether the temperature of the engine coolant of vehicle is greater than engine start
Degree；
S400. when the temperature of engine coolant is not more than engine start when the minimum temperature of coolant liquid, electricity is determined
Whether machine preheat to engine and determines whether fan works；
The minimum temperature of coolant liquid and the driving mode of vehicle when the temperature of engine coolant is greater than engine start
When for pure motor driving mode, determines the cooling of motor independence and fan does not work (mode 2), or the temperature in engine coolant
The driving mode of the minimum temperature of coolant liquid and vehicle is to determine that motor is in mixed dynamic driving mode when greater than engine start
It is no to carry out cooling to engine and determine whether fan works.
Since the control method of the present embodiment can be first passed through to the remaining capacity of vehicle present battery with mixed motor-car pure
Minimum remaining capacity under electric running mode is compared, to determine the driving mode of mixed motor-car according to comparison result, so
The minimum temperature of coolant liquid judges when whether being greater than engine start to the temperature of engine coolant afterwards, is finally starting
When machine coolant temperature is less than or equal to engine start when the minimum temperature of coolant liquid, determine whether motor carries out engine
Preheating and whether fan works, or the minimum temperature of coolant liquid, mixed when engine coolant temperature is greater than engine start
Motor-car is under pure motor driving mode determining motor independence cooling and fan does not work, or big in engine coolant temperature
Whether the minimum temperature of coolant liquid, mixed motor-car are under mixed dynamic driving mode when engine start determines motor to engine
It carries out cooling and determines whether fan works.In this way, the control method of the present embodiment can be in different traveling moulds in mixed motor-car
Combine the unlocking condition of motor and fan that temperature gradient is set in the case where formula, to refine the control of temperature, to improve
The cooling efficiency of mixed motor-car heat management system, to reduce the energy consumption of vehicle hybrid system.Accordingly, it is possible to resolve the prior art
The control method of middle heat management system can not promote engine temperature rapidly and lead to mixed motor-car heat management system cooling efficiency
Low problem.
In the above-described embodiments, the driving mode for determining mixed motor-car according to the result of the comparison in step S200 is pure electricity
Dynamic driving mode or mixed dynamic driving mode may include：
It is greater than or equal to minimum remaining electricity of the mixed motor-car under pure motor driving mode in the remaining capacity of present battery
When amount, determine that mixed motor-car is in pure motor driving mode；
When the remaining capacity of present battery is less than minimum remaining capacity of the mixed motor-car under pure motor driving mode, really
Surely mixed motor-car is in mixed dynamic driving mode.
As shown in figure 8, coolant liquid is most when the temperature in engine coolant in step S400 is greater than engine start
The driving mode of low temperature and vehicle is to determine whether motor carries out cooling and determine wind to engine in mixed dynamic driving mode
Whether fan works, and specifically may include：
S401. judge whether the temperature of motor is greater than minimum temperature when engine is in systemic circulation work；
S402. judge whether the temperature of motor is greater than the temperature of fan；
Minimum temperature, fan temperature are sentenced when being S403. in systemic circulation work with engine respectively according to the temperature of motor
Disconnected result determine motor whether independently cooling, engine be in systemic circulation operating mode or partial circulating operating mode or with motor string
Whether connection refrigerating mode and determining fan work.
In above-mentioned further embodiment, as shown in figure 9, the temperature according to motor in step S403 respectively with start
Minimum temperature, the judging result of fan temperature determine whether independently cooling, engine is in motor when machine is in systemic circulation work
Systemic circulation operating mode or partial circulating operating mode connect refrigerating mode with motor and whether fan works, and can specifically wrap
It includes：
If motor temperature is less than or equal to minimum temperature when engine is in systemic circulation work, and motor temperature is less than or waits
In fan temperature, then the cooling of motor independence, engine is in partial circulating operating mode and fan does not work (mode 4).If motor
Temperature is less than or equal to minimum temperature when engine is in systemic circulation work, and motor temperature is greater than fan temperature, then motor is only
Vertical cooling, engine is in partial circulating operating mode and fan does not work (mode 3).If motor temperature, which is greater than engine, is in big
Minimum temperature when cycle operation, and motor temperature is less than or equal to fan temperature, then motor is connected in series with engine and is cooled down,
And fan does not work (mode 5).If motor temperature is greater than minimum temperature when engine is in systemic circulation work, and motor temperature is big
In fan temperature, then the cooling of motor independence, engine are in systemic circulation operating mode and fan work (mode 6).
In a further embodiment, as shown in Figure 10, in step S400, it is not more than hair in the temperature of engine coolant
When motivation starts when the minimum temperature of coolant liquid, determine whether motor carries out preheating to engine and whether fan works, it can be with
Including：
S410. judge whether motor temperature is greater than the temperature of engine coolant in the case where mixed motor-car is in mixed dynamic driving mode
Degree, or judge whether the remaining capacity of present battery is greater than motor to engine in the case where mixed motor-car is in pure motor driving mode
Minimum amount of power needed for preheating；
S420. when motor temperature is greater than or equal to engine coolant temperature, motor is to engine prewarming, and fan is not
It works (mode 1)；Or when motor temperature is less than engine coolant temperature, the cooling of motor independence, engine are in partial circulating
Operating mode and fan do not work (mode 3)；
When minimum amount of power needed for being S430. greater than or equal to motor to engine prewarming in the remaining capacity of present battery,
Motor preheats engine, and fan does not work (mode 1), or is less than motor to starting in the remaining capacity of present battery
When minimum amount of power needed for machine preheating, the cooling of motor independence, fan do not work (mode 2).
The control method of above-described embodiment can according to engine systemic circulation, engine partial circulating, motor, fan whether work
Make, is divided into six kinds of operating modes.I.e. mode 1 is motor to engine prewarming, and fan does not work.Mode 2 is that motor is independently cooling,
Fan does not work.Mode 3 is that motor is independently cooling, and engine partial circulating, fan does not work.Mode 4 is that motor is independently cooling, hair
Motivation partial circulating, fan do not work.Mode 5 is engine, motor series connection cooling, and fan does not work.Mode 6 is that motor is independently cold
But, engine systemic circulation, fan work.
That is, the operating mode of the control system based on above-mentioned control method can be divided mainly into three categories, i.e. motor
Preheating mode (such as mode 1) is carried out to engine, the independent refrigerating mode of motor, engine (such as mode 2, mode 3, mode 4), electricity
Machine connects refrigerating mode (such as mode 5, mode 6) with engine.
Specifically, when vehicle 1 start-up operation in mode, not up to the engine of appropriate working temperature can be in motor
Preheating under be brought rapidly up, thus after engine operation, can faster enter preference temperature scope and work, to improve engine
Working efficiency.When 3 work in mode of mixed motor-car, engine is worked with partial circulating flowing.When mixed motor-car is with mould
When formula 6 works, is worked with engine with the flowing of systemic circulation mode, in this way, engine can be brought rapidly up, and quickly entered
It works in preference temperature scope.When mixed motor-car difference in mode 1, mode 2, mode 4, mode 5 work when, fan not work
To make, the flowing for mixing the coolant liquid circulation and air in motor-car is slow, and vehicle can be made to be in work in convenient temperature range,
So as to save the unlatching energy consumption of fan.When mixed motor-car difference 3, the work of mode 6 in mode, fan is then started to work, empty
The flowing of gas accelerates, so as to reduce rapidly the temperature of the components such as engine and motor, rapidly reduce the temperature of vehicle
Into suitable operating temperature range.That is the control method of the present embodiment further comprises is in motor temperature with engine respectively
The comparison that minimum temperature, fan temperature when systemic circulation works carry out determines whether motor is only with respectively according to the result of the comparison
Vertical cooling, engine are in systemic circulation operating mode or partial circulating operating mode or connect with motor refrigerating mode and determining wind
Whether fan works, to allow the heat management system of mixed motor-car to be cooled down in different working modes.That is, this
Temperature gradient can be arranged in combination with the unlocking condition of motor, the large and small circulation of engine and fan in the control method of embodiment,
With further refining temperature control method, to achieve the purpose that further increase heat management system cooling efficiency, so as into
The energy consumption of one step reduction vehicle hybrid system.
It should be noted that the control of fan logic is specifically as follows：After fan is turned on, air flowing can be accelerated, made
High temperature air stream after radiator, condenser displacement flows to outside vehicle rapidly, achievees the purpose that cool down rapidly.But when vehicle be in compared with
When preference temperature, fan is opened, is difficult to maintain preference temperature, therefore, devises fan control logic.Vehicle VCU can pass through
Judge engine coolant temperature, controls the open and close of fan.When vehicle distinguishes 1, mode 2, mode 3, mode in mode
4, when mode 5 works, fan does not work, and the slow flowing of coolant liquid circulation and air can make vehicle be in convenient temperature work
Make, so as to save the unlatching energy consumption of fan.And when mode 6 works, fan is then started to work, and air flowing starts to accelerate,
So as to reduce rapidly the components temperature such as engine, motor, to make vehicle be reduced to suitable operating temperature rapidly.
So far, although those skilled in the art will appreciate that present invention has been shown and described in detail herein multiple shows
Example property embodiment still without departing from the spirit and scope of the present invention, still can according to the present disclosure directly
Determine or deduce out many other variations or modifications consistent with the principles of the invention.Therefore, the scope of the present invention is understood that and recognizes
It is set to and covers all such other variations or modifications.
Claims (10)
1. a kind of control system for vehicle, wherein including：
Motor；
Engine；
Fan；
Temperature sampler, the temperature of the engine coolant for acquiring the vehicle；
Comparator is connected with the temperature sampler, for by the temperature of the engine coolant and the engine start
When coolant liquid minimum temperature be compared；With
Controller is connected with the comparator, when for the temperature according to the engine coolant with the engine start
The comparison result of coolant liquid minimum temperature controls whether the motor is preheated or cooled down to the engine, and described in control
Whether fan works.
2. control system according to claim 1, wherein further include：Engine electromagnetic valve and motor electromagnetic valve；
The motor electromagnetic valve is configured to controllably start electromechanics with described when the motor preheats the engine
Magnet valve connection enters the coolant liquid in the motor in the engine by the engine electromagnetic valve by its inside,
The engine is preheated.
3. control system according to claim 1, wherein further include：Condenser, thermostat, radiator and engine water
Pump, the motor electromagnetic valve include the first solenoid valve and second solenoid valve；
First solenoid valve be configured to when the engine and the motor start independent cooling respectively controllably with it is described
Engine electromagnetic valve disconnects, and the coolant liquid in the motor is made to be back to institute by the condenser, the second solenoid valve
It states in motor；With
The thermostat is configured to start the independent cooling and described engine coolant respectively in the engine and the motor
Temperature remain turned-off when being lower than the first preset temperature, make the in-engine coolant liquid by the thermostat, the hair
Motivation water pump is back in the engine, or starts the independent cooling and described engine respectively in the engine and the motor
The temperature of coolant liquid is opened when being greater than or equal to first preset temperature, makes the in-engine coolant liquid by the section
Warm device, the engine electromagnetic valve, the radiator, the engine water pump are back in the engine.
4. control system according to claim 3, wherein
First solenoid valve is configured to controllably start with described when the engine and the motor carry out connecting cooling
Electromechanical magnet valve disconnects, and the coolant liquid in the motor is made to be back to the electricity by the condenser, the second solenoid valve
In machine；With
The thermostat is configured to controllably open when the engine and the motor carry out connecting cooling, makes described start
A part of coolant liquid in machine is back in the engine by the thermostat, the engine water pump, and makes described start
Another part coolant liquid in machine is back to the hair by the engine electromagnetic valve, the radiator, the engine water pump
In motivation；
Wherein, by by the condenser and flowing to described the in the part coolant liquid of the engine water pump and the motor
Coolant liquid at two solenoid valves is back in the motor after being mixed.
5. control system according to claim 1, wherein further include：Electric quantity collector and power battery, the electricity are adopted
Storage is used to detect the remaining capacity of the power battery；
The comparator arrangement at by the remaining capacity of the present battery and the vehicle under pure motor driving mode most
Low remaining capacity is compared；
The controller is configured to remaining capacity and the vehicle according to the present battery under pure motor driving mode
The comparison result of minimum remaining capacity determines the driving mode of the mixed motor-car.
6. control system according to claim 1, wherein
The comparator arrangement is at the lowest temperature being in the temperature of the motor with the engine respectively when systemic circulation works
It spends, the temperature of the fan is compared；
The controller is configured to be in minimum when systemic circulation works with the engine respectively according to the temperature of the motor
Temperature, the fan temperature comparison result control the motor independently whether cooling, described engine be in systemic circulation and works
Mode or partial circulating operating mode or in the refrigerating mode being connected in series with the motor, and the control fan whether work
Make.
7. control system according to claim 1, wherein
The comparator is configured to the remaining capacity of the present battery and the motor to needed for the engine prewarming
Minimum amount of power be compared；
The controller is configured to remaining capacity and the motor according to the present battery to the engine prewarming institute
Whether the comparison result control motor of the minimum amount of power needed is independently cooling or whether controls the motor to the engine
It is preheated, and controls the fan and do not work.
8. control system according to claim 1-7, wherein
The comparator is configured to start the temperature of the motor with described in the case where the vehicle is in mixed dynamic driving mode
The temperature of machine coolant liquid is compared；
The controller is configured to be controlled according to the temperature of the motor and the comparison result of the engine coolant temperature
Whether the motor controls whether the fan work to the engine prewarming.
9. a kind of control method for vehicle, wherein including：
Compare the remaining capacity and minimum remaining capacity of the vehicle under pure motor driving mode of the vehicle present battery；
The driving mode for determining the vehicle according to the result of the comparison is pure motor driving mode or mixed dynamic driving mode；
Judge the minimum temperature of coolant liquid when whether the temperature of the engine coolant of the vehicle is greater than engine start；
When the temperature of the engine coolant is not more than engine start when the minimum temperature of coolant liquid, whether motor is determined
Engine preheat and determines whether fan works；
The minimum temperature of coolant liquid and the traveling of the vehicle when the temperature of the engine coolant is greater than engine start
When mode is the pure motor driving mode, determines the cooling of motor independence and fan does not work, or in the engine coolant
Temperature minimum temperature of the coolant liquid and driving mode of the vehicle is mixed dynamic driving mode when being greater than engine start
When, determine whether motor carries out cooling and determine whether fan works to engine.
10. control method according to claim 9, wherein the temperature in the engine coolant, which is greater than, starts
When the driving mode of the minimum temperature of coolant liquid and the vehicle is the mixed dynamic driving mode when machine starts, whether motor is determined
It carries out cooling to engine and determines whether fan works, including：
Judge whether the temperature of the motor is greater than the minimum temperature when engine is in systemic circulation work；
Judge whether the temperature of the motor is greater than the temperature of the fan；
Minimum temperature, the fan temperature when being according to the temperature of the motor systemic circulation work with the engine respectively
Judging result determines whether independently cooling, described engine is in systemic circulation operating mode or partial circulating operating mode to the motor
Or it connects with the motor and refrigerating mode and determines whether the fan works.
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| CN103644024A (en) * | 2013-11-28 | 2014-03-19 | 长城汽车股份有限公司 | Automobile engine intake air temperature regulation system |
| CN104890500A (en) * | 2014-12-15 | 2015-09-09 | 吉林大学 | Plug-in hybrid electric vehicle cooling system |
| CN104681886A (en) * | 2015-03-25 | 2015-06-03 | 东风汽车公司 | Power battery pack preheating device and control method thereof |
| CN106274892A (en) * | 2016-08-26 | 2017-01-04 | 哈尔滨东安汽车发动机制造有限公司 | A kind of engine start/stop control mixing motor-car type based on engine water gentleness accumulator SOC |
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