CN108340748A - Control method, device and the vehicle of vehicle - Google Patents
Control method, device and the vehicle of vehicle Download PDFInfo
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- CN108340748A CN108340748A CN201710050529.8A CN201710050529A CN108340748A CN 108340748 A CN108340748 A CN 108340748A CN 201710050529 A CN201710050529 A CN 201710050529A CN 108340748 A CN108340748 A CN 108340748A
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- Prior art keywords
- vehicle
- current temperatures
- condenser
- less
- temperature
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Classifications
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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
- B60H1/00271—HVAC devices specially adapted for particular vehicle parts or components and being connected to the vehicle HVAC unit
- B60H1/00278—HVAC devices specially adapted for particular vehicle parts or components and being connected to the vehicle HVAC unit for the battery
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00357—Air-conditioning arrangements specially adapted for particular vehicles
- B60H1/00385—Air-conditioning arrangements specially adapted for particular vehicles for vehicles having an electrical drive, e.g. hybrid or fuel cell
- B60H1/00392—Air-conditioning arrangements specially adapted for particular vehicles for vehicles having an electrical drive, e.g. hybrid or fuel cell for electric vehicles having only electric drive means
-
- 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
- B60H1/00478—Air-conditioning devices using the Peltier effect
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00271—HVAC devices specially adapted for particular vehicle parts or components and being connected to the vehicle HVAC unit
- B60H2001/003—Component temperature regulation using an air flow
Abstract
The present invention provides a kind of control method of vehicle, device and vehicles, wherein method includes：Receive warm-up demand；Judge whether the Current Temperatures of power battery pack are less than the first preset temperature；If it is, the Current Temperatures of detection condenser；Judge whether the Current Temperatures of condenser are less than the second preset temperature；If it is, control semiconductor heating, and condenser fan is opened, it is heated up to power battery pack with opening compressor.This method can preheat power battery pack, improve battery, the reliability of vehicle is effectively ensured, simple and convenient.
Description
Technical field
The present invention relates to automobile technical field, more particularly to a kind of control method of vehicle, device and vehicle.
Background technology
Currently, the energy of electric vehicle all derives from power battery pack, however very in addition to the power of driving motor consumption
Greatly, the consumption power of air-conditioning system is also very big, such as the distinctive motor compressor of electric vehicle and PTC (Positive
Temperature Coefficient, thermistor) heating, but air-conditioning system again it is particularly important, vehicle to power battery into
Row heat management, and integrated use is carried out with air-conditioning system, the heat dissipation Preheating of power battery can be not only solved, and save
Battery capacity improves battery life.
However, in the related technology, power battery pack does not preheat, cause to influence electricity when electric automobile whole cold start-up or charging
The service life in pond, once not preheated to power battery, easily influences the charging of vehicle especially when environment temperature is less than 10 °
Time.In addition, be serially connected between the driving motor of electric vehicle, electric machine controller and charger, cause cannot to respectively into
Row heat management causes to waste electricity, and once radiates to the device that need not be cooled down, and can reduce its working life.
Invention content
In view of this, the present invention is directed to propose a kind of control method of vehicle, this method can improve battery,
The reliability of vehicle is effectively ensured.
In order to achieve the above objectives, the technical proposal of the invention is realized in this way：
A kind of control method of vehicle, the vehicle are provided with the semiconductor for heating or heat is cold, wherein method packet
It includes：Receive warm-up demand；Judge whether the Current Temperatures of power battery pack are less than the first preset temperature；If it is, detection is cold
The Current Temperatures of condenser；Judge whether the Current Temperatures of the condenser are less than the second preset temperature；If it is, described in control
Semiconductor heating, and condenser fan is opened, it is heated up to the power battery pack with opening compressor.
Further, the above method further includes：Detect the Current Temperatures of driving motor, electric machine controller Current Temperatures and
The working condition of battery management system；Judge the Current Temperatures of the driving motor, the Current Temperatures of electric machine controller and/or electricity
Whether the working condition of pond management system meets default radiating condition；If it is, starting water pump and the condenser fan, and beat
Open the conducting valve of the driving motor, the electric machine controller and/or the battery management system.
Further, the above method further includes：Detect vehicle local environment temperature；Judge the vehicle local environment temperature
Whether third preset temperature is less than；If so, and receive the warm-up demand, then control the accumulator be the compressor
Power supply.
Further, the above method further includes：Judge whether the power of the compressor reaches preset value；If it is,
Control the semiconductor refrigerating.
Optionally, the semiconductor be arranged on the deflector of the vehicle or the condenser fan on or it is described
On the periphery member of condenser.
Compared with the existing technology, the control method of vehicle of the present invention has the advantage that：
The control method of vehicle of the present invention takes air duct to by condenser fan on the surface of condenser, can be to heat
Pumping system at low ambient temperatures, condenser occur frost defrosted, deicing, the reliability of vehicle is effectively ensured, and
And power battery pack is preheated, battery capacity is not only saved, and improve battery, it is simple and convenient.
It is another object of the present invention to propose a kind of control device of vehicle, which can improve battery and use the longevity
Life, is effectively ensured the reliability of vehicle.
In order to achieve the above objectives, the technical proposal of the invention is realized in this way：
A kind of control device of vehicle, the vehicle are provided with the semiconductor for heating or freezing, wherein device
(100) include：Receiving module (10), for receiving warm-up demand；First judgment module (20), for judging power battery pack
Whether Current Temperatures are less than the first preset temperature；First detection module (30), for when less than first preset temperature, examining
Survey the Current Temperatures of condenser；Second judgment module (40), for judging whether the Current Temperatures of the condenser are less than second
Preset temperature；First control module (50), for when less than second preset temperature, controlling the semiconductor heating, and
Condenser fan is opened, is heated up to the power battery pack with opening compressor.
Further, above-mentioned apparatus (100) further includes：Second detection module, for detect driving motor Current Temperatures,
The Current Temperatures of electric machine controller and the working condition of battery management system；Third judgment module, for judging the driving electricity
Whether the working condition of the Current Temperatures of machine, the Current Temperatures of electric machine controller and/or battery management system meets default heat dissipation
Condition；Second control module, for when meeting the default radiating condition, for starting water pump and the condenser fan, and
Open the conducting valve of the driving motor, the electric machine controller and/or the battery management system.
Further, above-mentioned apparatus (100) further includes：Third detection module, for detecting vehicle local environment temperature；The
Four judgment modules, for judging whether the vehicle local environment temperature is less than third preset temperature；Third control module, is used for
Less than the third preset temperature, and when receiving the warm-up demand, controls the accumulator and power for the compressor.
Further, above-mentioned apparatus (100) further includes：5th judgment module, for judging that the power of the compressor is
It is no to reach preset value；4th control module, for when reaching the preset value, controlling the semiconductor refrigerating.
The control method of the control device of the vehicle and above-mentioned vehicle compared with the existing technology possessed by advantage
Identical, details are not described herein.
It is another object of the present invention to propose a kind of vehicle, which can improve battery, effectively protect
Demonstrate,prove the reliability of vehicle.
In order to achieve the above objectives, the technical proposal of the invention is realized in this way：
A kind of vehicle is provided with the control device of the vehicle as described in above-described embodiment.
Possessed advantage is identical compared with the existing technology with the control device of above-mentioned vehicle for the vehicle, herein not
It repeats again.
Description of the drawings
The attached drawing for constituting the part of the present invention is used to provide further understanding of the present invention, schematic reality of the invention
Example and its explanation are applied for explaining the present invention, is not constituted improper limitations of the present invention.In the accompanying drawings：
Fig. 1 is the flow chart of the control method of the vehicle described in the embodiment of the present invention；
Fig. 2 is the structural schematic diagram of the heat management system of the vehicle described in one embodiment of the invention；
Fig. 3 is the flow chart of the control method of the vehicle described in one embodiment of the invention；
Fig. 4 is the structural schematic diagram of the solar energy system of the vehicle described in one embodiment of the invention；
Fig. 5 be one embodiment of the invention described in vehicle in semiconductor connection diagram；
Fig. 6 is the flow chart of the control method of the vehicle described in a specific embodiment of the invention；And
Fig. 7 is the structural schematic diagram of the control device of the vehicle described in the embodiment of the present invention.
Reference sign：
Control device, 10- receiving modules, the first judgment modules of 20-, 30- first detection modules, the 40- of 100- vehicles
The first control module of two judgment modules and 50-.
Specific implementation mode
It should be noted that in the absence of conflict, the feature in embodiment and embodiment in the present invention can phase
Mutually combination.
The present invention will be described in detail below with reference to the accompanying drawings and embodiments.
Fig. 1 is the flow chart of the control method of vehicle according to the ... of the embodiment of the present invention.
As shown in Figure 1, the control method of vehicle according to the ... of the embodiment of the present invention, includes the following steps：
Step S101 receives warm-up demand.
Step S102, judges whether the Current Temperatures of power battery pack are less than the first preset temperature.
For example, the first preset temperature can be 20 DEG C, it is to be understood that consider electric automobile whole cold start-up or charging
When influence battery service life, therefore when the temperature of battery be less than 20 DEG C when, power battery pack can be preheated, improve battery
Service life.
Step S103, if it is, the Current Temperatures of detection condenser.
Step S104, judges whether the Current Temperatures of condenser are less than the second preset temperature.
For example, the second preset temperature can be 0 DEG C, it is to be understood that when environment temperature is lower less than 10 °, not to dynamic
Power battery preheats the charging time that can influence vehicle, and under low temperature environment, can not be effectively pre- if the frosting that condenser occurs
Heat.
Step S105, if it is, control semiconductor heating, and condenser fan is opened, to open compressor to power electric
Chi Bao heats up.
In an embodiment of the present invention, vehicle is provided with the semiconductor for heating or heat is cold, to pass through condenser fan
Air duct is taken to the surface of condenser, can be to heat pump system under low temperature environment (0 DEG C or less), the frost of condenser appearance
It is defrosted, deicing.
Further, in one embodiment of the invention, the method for the embodiment of the present invention further includes：Judge compressor
Whether power reaches preset value；If it is, control semiconductor refrigerating.
Optionally, in one embodiment of the invention, semiconductor can be arranged on the deflector of vehicle or condense
On fan or on the periphery member of condenser.
For example, it is embedded in deflector using semiconductor, air duct is taken by condenser fan to the surface of condenser,
Can to heat pump system under low temperature environment (0 DEG C or less), condenser occur frost defrosted, deicing, and freeze when,
It can be matched with motor compressor, the heat-sinking capability by increasing condenser reduces the power of motor compressor, reaches saving
The effect of power battery electricity.It should be noted that the mode of the deflector insertion semiconductor of vehicle front-end module, it equally can be with
It is embedded in lower condenser fan or on the periphery member of condenser, then cold wind/hot wind is blown on condenser by condenser fan,
This is not specifically limited.
Further, in one embodiment of the invention, the method for the embodiment of the present invention further includes：Detect driving motor
Current Temperatures, the Current Temperatures of electric machine controller and the working condition of battery management system；Judge the current temperature of driving motor
Whether the working condition of degree, the Current Temperatures of electric machine controller and/or battery management system meets default radiating condition；If
It is the conducting valve for then starting water pump and condenser fan, and opening driving motor, electric machine controller and/or battery management system.
It should be noted that default radiating condition can be configured according to actual conditions.
It is understood that it is directed to the series system that driving motor, electric machine controller, charger use, it cannot be to each
Product carries out heat management, wastes electricity, and radiate on the product that need not be cooled down and can influence its working life, present invention reality
Charger, driving motor, electric machine controller can be carried out to separate heat management by applying example, provided the working life of product, saved electricity
Amount.
Further, in one embodiment of the invention, the method for the embodiment of the present invention further includes：It detects residing for vehicle
Environment temperature；Judge whether vehicle local environment temperature is less than third preset temperature；If so, and receive warm-up demand, then
Accumulator is controlled to power for compressor.
It is understood that the embodiment of the present invention can preheat power battery, battery life is provided, accelerates charging
Time, and the power of power battery is saved, the course continuation mileage of vehicle is provided.
Specifically, as shown in Fig. 2, the electrombile thermal management system of the embodiment of the present invention include three modules, drive respectively
The cooling system of dynamic system, passenger compartment heating system and power battery thermal management system.
One, drive system module
As shown in Fig. 2, drive system refrigerating module is cooled down using water cooling, medium is coolant liquid (50% water and 50%
Ethylene glycol)；This cooling system needs radiating module, and heat dissipation system by (drive motor controller), driving motor, charger three
Radiator, condenser fan, water pump 1, solenoid valve 1, solenoid valve 2, solenoid valve 3, spilling water filling, filler Components Parallel Connection needed for system
Composition.
Full-vehicle control unit must monitor motor temperature, MCU (drive Motor Control Unit, driving motor control
Device processed) and DC/DC temperature, electronic water pump and fan work are controlled, makes these component workings within the scope of suitable temperature.
Coolant liquid in cooling water pipe is flowed out from radiator, by charger, MCU and DC/DC and motor, is finally flowed back to
Into radiator, the heat that above-mentioned component working generates is taken away by the coolant liquid of flowing.Fan helps radiator to be quickly cooled down.
To adapt to different cooling requirements, fan can be operated under high speed and lower-speed state.
(1) VCU heat management systems block diagram
As shown in figure 3, VCU (Vehicle Control Unit, entire car controller) is according to the operating temperature of motor, MCU
And the working condition of BMS (Battery Management System, battery management system) controls air-conditioning, fan, water pump
It opens, reaches reduction temperature, protect the effect of related electric component.
(2) water pump, the description of condenser fan function
The coolant temperature that VCU is detected according to motor and DCDC and MCU, control condenser fan, water pump 1 play on or off
It closes, it is therefore an objective to allow motor and DCDC and MCU to be operated within the scope of a suitable temperature, be not in that temperature is excessively high or temperature
It is too low, in order to avoid influence the performance of motor and DCDC and MCU.
1. water pump 1
When vehicle is run and when charged state, pump power is adjusted according to the difference of coolant temperature, to adapt to
Different cooling requirements.
Control output water pump P WM (Pulse Width Modulation, pulse width tune when meeting one of the following conditions
System) duty ratio 80%：
1) driving states：(establishment of one of following two conditions)
A. high pressure power on after the completion of i.e. open water pump, Rule of judgment can be received with VCU MCU feed back normal driving mode or
The temperature and state of power mode, driving motor, DCDC drop；
The water pump that b.VCU receives MCU feedbacks opens request.
2) charged state:(establishment of one of the following conditions)
A.VCU receives that battery starts to charge up or battery pack is begun to warm up；
The DCDC that b.VCU receives MCU feedbacks starts to work；
The water pump that c.VCU receives MCU feedbacks opens request；
Control output water pump P WM duty ratios 0% when meeting following full terms：
1) driving states：
(after electricity or without upper high pressure under high pressure) under low pressure electricity condition, while meeting the following conditions and switching off the pump.
A.MCU temperature is less than 30 degree (can demarcate)；
B. motor temperature is less than 30 degree (can demarcate)；
C.DCDC temperature is less than 30 degree (can demarcate)；
D. coolant temperature is less than 30 degree (can demarcate)；
E.MCU requests switch off the pump；
2) charged state：(establishment of one of A/B conditions)
A.VCU receives battery and is not heated in charged state and battery pack.
B. (after electricity or without upper high pressure under high pressure) under low pressure electricity condition, while meeting the following conditions and switching off the pump.
A.VCU receives the water pump turn-off request of MCU feedbacks；
B.DCDC temperature is less than 30 degree (can demarcate).
2. condenser fan
Meet one of the following conditions and opens low speed cooling fan relay：
A. when coolant temperature is more than 35 degree (can demarcate)；
B. the order that low speed fan is opened in air-conditioning request is received；
Low speed cooling fan relay is closed when the following conditions all meet：
A. when coolant temperature is less than 30 degree (can demarcate)；
B. the order that low speed fan is closed in air-conditioning request is received；
Meet one of the following conditions and opens high speed fan relay：
A. when coolant temperature is more than 45 degree (can demarcate)；
B. the order that high speed fan is opened in air-conditioning request is received；
Closing high-speed cooling fan relay when the following conditions all meet：
A. when coolant temperature is less than 40 degree (can demarcate)；
B. the order of air-conditioning request closing high-speed fan is received.
(3) water pump, fan functionality demand
VCU must control water pump and open duty ratio 80% when meeting following arbitrary condition：
A. high pressure powers on completion；
B. battery pack is in charged state；
C. battery pack opens computer heating control；
D.DC/DC starts to work；
It is effective that cooling water pump is opened in e.MCU requests；
To adapt to different cooling requirements, pump power needs are adjusted according to coolant temperature.(current design is
Pump working is in fixed power)
VCU must control water pump and close duty ratio 0% when meeting following arbitrary condition：
1) in charging process, BMS exits charge mode and battery pack is not in heated condition.
2) (after electricity or without upper high pressure under high pressure) under low pressure electricity condition, while meeting the following conditions and switching off the pump.
A.MCU temperature is less than 30 degree (can demarcate)；
B. motor temperature is less than 30 degree (can demarcate)；
C.DCDC temperature is less than 30 degree (can demarcate)；
D. coolant temperature is less than 30 degree (can demarcate)；
E.MCU requests switch off the pump；
Low speed fan is opened when meeting following arbitrary condition：
A. when coolant temperature is more than 35 degree (can demarcate) (temperature is the estimated temperature of detection coolant liquid in MCU)；
B. low speed fan is opened in air-conditioning request；
Low speed fan is closed when meeting following arbitrary condition：
A. when coolant temperature is less than 30 degree (can demarcate)
B. low speed fan is closed in air-conditioning request；
High speed fan is opened when meeting following arbitrary condition：
A. when coolant temperature is more than 45 degree (can demarcate)；
B. high speed fan is opened in air-conditioning request；
Closing high-speed fan when meeting following arbitrary condition：
A. when coolant temperature is less than 40 degree (can demarcate)
C. air-conditioning asks closing high-speed fan.
(4) control of solenoid valve
Solenoid valve used in drive system is to save vehicle in order to which three need thermal component to be respectively controlled
Electricity, if charger needs to radiate, other two need not radiate, then only open a way solenoid valve, if two component workings, one
It is a not work, it opens two solenoid valves and is all turned on when three components need heat dissipation simultaneously.
Two, battery thermal management system
The best effort environment temperature of power battery is at 20 DEG C~40 DEG C, in order to allow power battery to be in best work shape
State or charged state need to preheat power battery and radiated.
Battery thermal management system is illustrated as shown in Fig. 2, it has electromagnetic expanding valve 2, evaporator 2, four-way valve, electric compressor
Machine, condenser, condenser fan component composition；Four-way valve has the function of pipeline commutation；In order to battery pack service life more
Persistently and electricity is saved, in the embodiment of the present invention, solar recharging system can be increased, individually increased by one group of battery and be used for low
Under warm environment, the preheating to power battery pack is carried out.
For example, as shown in figure 4, increasing by one group of battery pack 2, BMS systems and solar charging panel；When detecting external environment
At 0 DEG C or less, and when needing to be preheated to battery pack, the increased battery pack 2 of institute is powered temperature to motor compressor,
After reaching pre-heat effect, battery pack 2 disconnects work, and power supply is carried out by battery pack 1；Using solar recharging, battery pack 2 can be held
Continuous energy storage provides electricity for the preheating of battery pack 1.Wherein, PDU (power distribution unit, block terminal) carries out electricity
The product of source distribution.
(3), battery pack is freezed
According to BMS battery cooling requirements, refrigeration control is carried out, whether there is or not refrigeration demands not to interfere with air-conditioning state for battery pack.
Such as：Air-conditioning is in off-mode, and battery is surrounded by refrigeration demand, and air-conditioning is not switched on, and only opens compressor and cools down to battery pack.
(1) battery pack cooling principle
When battery is surrounded by refrigeration demand, BMS can send cooling request and be received after this signal to AC, AC while read BMS
Two signal values of target evaporator temperature and evaporator actual temperature sent out judge to need increased compression according to two temperatures difference
Machine rotating speed (specific increased value need to demarcate determination), target is to control evaporator actual temperature in target temperature range.If
Compressor is closed, then opens compressor and determined simultaneously according to target evaporator temperature and evaporator actual temperature difference
Compressor rotary speed.
Its cooling principle and identical as passenger compartment refrigeration principle is carried out to battery pack using evaporator (refrigerant)
It is cooling.
(2) battery pack preheats principle
As shown in Fig. 2, battery thermal management circuit is heat pump system, condenser, evaporator 2 are made by four-way valve
The conversion of cold heating；When preheating, evaporator 2 is used as condenser, and the heat given out preheats battery pack, then
Condenser is used as evaporator；Since heat pump system is in heating, at -5 DEG C or less, the surface of front end condenser is easy
Frosting, icing；So using the deflector for having embedded semiconductor, the surface that condenser fan blows to hot wind condenser is crossed together,
Remove the frost or ice of condenser surface.
(3) semiconductor control strategy
As shown in figure 5, semiconductor carries out the switching of cooling and warming using two relays, relay 1 absorbs heat, semiconductor into
Row heating, relay 2 are attracted, and semiconductor freezes.
(4) battery pack warm-up control strategy
As shown in fig. 6, battery pack preheats, typically before vehicle starts or preheating before charging, power battery pack is allowed
In best working condition, service life and the performance of battery are provided, this strategy proposed is the long-range preheating to power battery pack
Control.
(4), passenger compartment heating system
It is mainly heated to passenger compartment, meets vehicle heating requirement, such as defrosting/defrosting function, occupant's heating demand；System
Shown in Fig. 2, by spilling water fill 2, water pump 2, electric heater (hot-water heating PTC), heater cores, blower unit at；Pass through electric heater handle
Coolant liquid heats, and water pump promotes coolant liquid to be recycled to heater cores, and air blower blows to hot gas on driver's cabin or windshield.
(1) water pump controls
When electric heater needs to start, starting mode of pump work.When electric heater is stopped, after water pump continues 10S
It is stopped.
When air-conditioning needs heating, electronic water pump is opened, and electronic water pump opens opening electric heater after 10S.Exit heating
When work, electricity is first closed
Heater, electric heater switch off the pump after closing 10S.Flow is mutated in order to prevent, and the opening and closing of water pump add
Filtering, filtering time calculate as follows：
Wherein, Tst is filtering time, and unit ms, n are water pump step number (such as 5, can demarcate), and t is water pump delay time
(such as 50ms can be demarcated).
The filtering time of water pump is mainly reflected in the stage that PWM duty cycle is 21%~100%, so there is (1- in formula
20%).The step number that water pump duty ratio changes every time, upper limit value 255.When n is set as 5, illustrate water pump duty ratio from 0~
During 100%, change 5 every time.51 steps can reach 255 when under normal circumstances since 0.If the duty ratio from 20% is opened
When beginning to calculate, upper limit value 255 is reached by (1-20%) * 255/5 step.And t is every change (n) step number required time.Such as, exist
Setting t is 50ms on the basis of above.
Then：
(2) high pressure electric heater controls to adjust
1. basic logic
When operation A/C buttons, A/C indicator lights go out, and when having heating demand, and air-conditioner controller sends high pressure electric heater
(hereinafter referred to as HVH) Request For Work signal, vehicle VCU feedback air-conditioning HVH work allow signal and power limit signal, air-conditioning control
Device processed determines the target temperature of HVH work according to result of calculation, this target temperature and power limit signal are sent to HVH, HVH into
The corresponding target control of row.
2. compressor, high pressure electric heater are asked
CMP no signals are asked, and HVH has request signal.
3. condenser fan
When A/C does not work, condenser fan does not ask work.
1) limitation protection
Electronic water pump abnormal protection：When electronic water pump feedback operation exception, HVH forbids work.
2) vehicle power limit
A. compressor operating allows to forbid, and HVH is closed；
B. compressor operating allows, and VCU limits compressor horsepower, HVH power.
4. electric under vehicle
Electricity is closed without request, HVH under vehicle, and when point has request under vehicle, HVH is in open state.
HVH is practically in open state, and whole lower electricity is forbidden, and HVH is practically in closed state, and whole lower electricity allows.
5. HVH output controls
When HVH allows work, HVH target temperatures are arranged by LIN buses in (A/C), while the work(for forwarding vehicle to limit
Rate value.
1) when, HVH failures export following failure to A/C, HVH is stopped.
A.IGBT short circuits or open circuit；
B. high-low pressure processor memory failure；
Communication interface circuit failure between c.HVH internal high voltages and low-voltage；
D.HVH internal sensors detect overheat；
E. cooling liquid inlet temperature sensor fault；
F. cooling liquid outlet temperature sensor fault；
G. cooling liquid outlet temperature sensor is defective；
Heats sensor is defective inside h.HVH；
Detection cooling circuit temperature exceeds calibration value inside j.HVH；
K.HVH builtin voltages are less than power supply voltage range；
L.HVH builtin voltages are higher than power supply voltage range；
M.LIN communication failures；
N.HVH outlet temperatures exceed calibration value；
O.HVH inlet temperatures exceed calibration value.
(5) defrosting/defrosting function
(1) defrosting/mist vehicle power allocation case
When defrosting/mist function is opened, the preferential distribution powers of VCU are to meet the needs of defrosting/mist function.
When air-conditioning is not turned on defrosting/mist, it is (0 to 5000) W that vehicle SOC, which is more than 0, VCU to distribute to the power of air-conditioning,
As at this time open defrosting/mist function, VCU distribute to air-conditioning power be (0 to 5100) W+1000W (tentative), if the sum of be more than
5100W, then the power that VCU distributes to air-conditioning is 5100W.
(2) start defrosting/demisting
A. if pattern is in non-defrosting/demisting state, operation defrosting/demisting button controller enters defrosting/defrosting function；
B. if pattern is in non-defrosting/demisting state, operation defrosting/demisting button controller enters defrosting/defrosting function；
C. if air quantity<6 grades, air quantity becomes 6 grades；Otherwise, air quantity is kept；
D. mode position is switched to defrosting position；
E. air inlet is forced to outer circulation, can manually adjust；
F. if entered, defrosting space-time tune is in refrigeration mode, and holding current state, changes in temperature can be carried out by adjusting temperature adjustment knob
It adjusts, compressor is closed when being adjusted to heating state, and indicator light extinguishes, and when heating is executed in a manner of control targe water temperature；
If entering defrosting space-time to mediate in heating mode, current state, compressor is kept to be not turned on.A/C buttons are operated,
Can manual start and stop compressor, distribute to compressor 1000W power at this time, distribute to HVH performance numbers be VCU_ACPowerLimit
(power limits of the VCU to air-conditioning) -1000W (gives whole power distributions if VCU distribution powers are less than or equal to 1000W
HVH).Defrosting button is pressed again, and defrosting is closed, and is restored to heating mode, AC is kept.If entering defrosting space-time to mediate in ventilation
Pattern keeps current state, compressor, HVH to be not turned on, and can enter refrigerating/heating pattern by adjusting temperature adjustment knob, also may be used
Enter refrigeration mode by operating A/C buttons.
It should be noted that adjusting temperature adjustment knob may be implemented refrigeration, ventilation, the switching of heating mode.
(3) defrosting/demisting is exited
If work at present is in defrosting/defrosting function, operation defrosting/demisting button exits defrosting/defrosting function, air-conditioning
Restore into state before defrosting/defrosting function.
(4) disabler action description
Message is controlled as air-conditioner continuous 5s does not receive VCU, A/C and HVH will be stopped and worked.
(6), VCU power limits strategy
Different SOC- is respectively adopted under E grades, E+ grades and other gears according to vehicle VCU power dividing function specifications
Air-conditioning power coefficient curve, distributing to power=coefficient × 5100W of air-conditioning, (such as coefficient distributes to air-conditioning power when being 1 is
5100W)。
(1) while meeting following all conditions, VCU can allow operation of air conditioner：
A. ignition switch signal is at Ign_on grades；
B. high pressure is completed in system；
Under c.R/N/P grades, it is identical as D gears that air-conditioning maximum power limits calculating parameter.Parameter is as follows：
(2) E grades
(3) E+ grades
When E+ is kept off, crew module's refrigeration and crew module heat forbidden energy.
Under the conditions of any, defrosting-defogging function cannot be limited.
Under the conditions of any, battery refrigerating function cannot be limited.
The maximum power needs of air-conditioning are calculated according to the serious hope degree of current SOC electricity and client.
VCU needs to open high speed, low speed fan according to the demand of air-conditioning.
VCU needs can be communicated by CAN signal and air-conditioning.
After VCU detects key off, it will be sent to air-conditioning and shut down request, after air-conditioning is closed, fed back and close to VCU
State, then VCU continue to execute lower electric current journey.
After VCU detects key off, it will be sent to air-conditioning and shut down request, if air-conditioning does not feed back always shutdown shape
State, for VCU then after 15s, pressure continues to execute lower electric current journey.
Wherein, as shown in Fig. 2, refrigeration/preheating of power battery, refrigeration/heating with crew module control respectively, two
Person independent can run, and be protected to high pressure electric heater.
The control method of vehicle according to the present invention takes air duct to by condenser fan on the surface of condenser, can
At low ambient temperatures to heat pump system, condenser occur frost defrosted, deicing, and using semiconductor refrigerating original
Reason reaches the effect for saving vehicle electricity with motor compressor, the power for matching reduction compressor of condenser, condenser fan
Fruit, and management in parallel is carried out to charger, driving motor, motor control, it improves and saves the electricity of vehicle, improves making for three
It is respectively independent with refrigeration/heating system of service life and battery pack heat pump refrigerating preheating method and passenger compartment, vehicle is effectively ensured
Reliability, and power battery pack is preheated, not only saves battery capacity, and improve battery, simply
It is convenient.
Further, vehicle is provided with the semiconductor for heating or freezing, as shown in fig. 7, the embodiment of the present invention is also
Disclose a kind of control device 100 of vehicle comprising：Receiving module 10, the first judgment module 20, first detection module 30,
Second judgment module 40 and the first control module 50.
Specifically, as shown in fig. 7, receiving module 10 is for receiving warm-up demand.First judgment module 20 is for judging
Whether the Current Temperatures of power battery pack are less than the first preset temperature.First detection module 30 is used for default when being less than described first
When temperature, the Current Temperatures of condenser are detected.Second judgment module 40 is for judging whether the Current Temperatures of the condenser are small
In the second preset temperature.First control module 50 is used for when less than second preset temperature, controls the semiconductor heating,
And condenser fan is opened, it is heated up to the power battery pack with opening compressor.The device 100 of the embodiment of the present invention can be to dynamic
Power battery pack is preheated, and improves battery, the reliability of vehicle is effectively ensured, simple and convenient.
Further, in one embodiment of the invention, the device 100 of the embodiment of the present invention further includes：Second detection
Module, third judgment module and the second control module.
Wherein, the second detection module is for detecting the Current Temperatures of driving motor, the Current Temperatures of electric machine controller and electricity
Pond manages the working condition of system.Third judgment module is used to judging the Current Temperatures of the driving motor, electric machine controller
Whether the working condition of Current Temperatures and/or battery management system meets default radiating condition.Second control module is used for full
When the foot default radiating condition, for starting water pump and the condenser fan, and the driving motor, the motor control are opened
The conducting valve of device processed and/or the battery management system.
Further, in one embodiment of the invention, the device 100 of the embodiment of the present invention further includes：Third detects
Module, the 4th judgment module and third control module.
Wherein, third detection module is for detecting vehicle local environment temperature.4th judgment module is for judging the vehicle
Whether local environment temperature is less than third preset temperature.Third control module is used for less than the third preset temperature, and
When receiving the warm-up demand, controls the accumulator and power for the compressor.
Further, in one embodiment of the invention, the device 100 of the embodiment of the present invention further includes：5th judges
Module and the 4th control module.
Wherein, the 5th judgment module is for judging whether the power of the compressor reaches preset value.4th control module
For when reaching the preset value, controlling the semiconductor refrigerating.
It should be noted that the specific implementation of the control device of the vehicle of the embodiment of the present invention and the controlling party of vehicle
The specific implementation of method is similar, in order to reduce redundancy, is not repeated herein.
The control device of vehicle according to the present invention takes air duct to by condenser fan on the surface of condenser, can
At low ambient temperatures to heat pump system, condenser occur frost defrosted, deicing, and using semiconductor refrigerating original
Reason reaches the effect for saving vehicle electricity with motor compressor, the power for matching reduction compressor of condenser, condenser fan
Fruit, and management in parallel is carried out to charger, driving motor, motor control, it improves and saves the electricity of vehicle, improves making for three
It is respectively independent with refrigeration/heating system of service life and battery pack heat pump refrigerating preheating method and passenger compartment, vehicle is effectively ensured
Reliability, and power battery pack is preheated, not only saves battery capacity, and improve battery, simply
Easily realize.
Further, embodiment of the invention discloses that a kind of vehicle, the vehicle are provided with the vehicle described in above-described embodiment
Control device.The vehicle can take air duct to by condenser fan the surface of condenser due to being provided with above-mentioned apparatus,
Can be to heat pump system at low ambient temperatures, frost that condenser occurs defrosted, deicing, and using semiconductor refrigerating
Principle reaches with motor compressor, the power for matching reduction compressor of condenser, condenser fan and saves vehicle electricity
Effect, and management in parallel is carried out to charger, driving motor, motor control, it improves and saves the electricity of vehicle, improves three's
Service life and refrigeration/heating system of battery pack heat pump refrigerating preheating method and passenger compartment are respectively independent, and vehicle is effectively ensured
Reliability, and power battery pack is preheated, not only saves battery capacity, and improve battery, letter
It is single easily to realize.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
With within principle, any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention god.
Claims (10)
1. a kind of control method of vehicle, which is characterized in that the vehicle is provided with the semiconductor for heating or heat is cold,
In, method includes：
Receive warm-up demand；
Judge whether the Current Temperatures of power battery pack are less than the first preset temperature；
If it is, the Current Temperatures of detection condenser；
Judge whether the Current Temperatures of the condenser are less than the second preset temperature；And
If it is, controlling the semiconductor heating, and condenser fan is opened, to open compressor to the power battery pack liter
Temperature.
2. the control method of vehicle according to claim 1, which is characterized in that further include：
Detect Current Temperatures, the Current Temperatures of electric machine controller and the working condition of battery management system of driving motor；
Judge the work shape of the Current Temperatures of the driving motor, the Current Temperatures of electric machine controller and/or battery management system
Whether state meets default radiating condition；
If it is, starting water pump and the condenser fan, and open the driving motor, the electric machine controller and/or institute
State the conducting valve of battery management system.
3. the control method of vehicle according to claim 1, which is characterized in that the vehicle includes accumulator, further includes：
Detect vehicle local environment temperature；
Judge whether the vehicle local environment temperature is less than third preset temperature；
If so, and receive the warm-up demand, then control the accumulator for the compressor power.
4. the control method of vehicle according to claim 1, which is characterized in that further include：
Judge whether the power of the compressor reaches preset value；
If it is, controlling the semiconductor refrigerating.
5. according to the control method of claim 1-4 any one of them vehicles, which is characterized in that the semiconductor is arranged in institute
It states on the deflector of vehicle or in the condenser fan or on the periphery member of the condenser.
6. a kind of control device of vehicle, which is characterized in that the vehicle is provided with the semiconductor for heating or freezing,
In, device (100) includes：
Receiving module (10), for receiving warm-up demand；
First judgment module (20), for judging whether the Current Temperatures of power battery pack are less than the first preset temperature；
First detection module (30), for when less than first preset temperature, detecting the Current Temperatures of condenser；
Second judgment module (40), for judging whether the Current Temperatures of the condenser are less than the second preset temperature；And
First control module (50), for when less than second preset temperature, controlling the semiconductor heating, and open cold
Solidifying fan, heats up to the power battery pack with opening compressor.
7. the control device of vehicle according to claim 6, which is characterized in that further include：
Second detection module, for detecting the Current Temperatures of driving motor, the Current Temperatures of electric machine controller and battery management system
The working condition of system；
Third judgment module, for judging the Current Temperatures of the driving motor, the Current Temperatures of electric machine controller and/or battery
Whether the working condition of management system meets default radiating condition；
Second control module, for when meeting the default radiating condition, for starting water pump and the condenser fan, and beating
Open the conducting valve of the driving motor, the electric machine controller and/or the battery management system.
8. the control device of vehicle according to claim 1, which is characterized in that further include：
Third detection module, for detecting vehicle local environment temperature；
4th judgment module, for judging whether the vehicle local environment temperature is less than third preset temperature；
Third control module controls the storage for less than the third preset temperature, and when receiving the warm-up demand
Battery is powered for the compressor.
9. the control device of vehicle according to claim 1, which is characterized in that further include：
5th judgment module, for judging whether the power of the compressor reaches preset value；
4th control module, for when reaching the preset value, controlling the semiconductor refrigerating.
10. a kind of vehicle, which is characterized in that including：
The semiconductor being set on vehicle, for heating or freezing；
Such as the control device of claim 6-9 any one of them vehicles.
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| CN108340748B (en) | 2021-09-21 |
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