CN106965642A - On-board air conditioner driving method of the electric automobile based on entire car controller - Google Patents
On-board air conditioner driving method of the electric automobile based on entire car controller Download PDFInfo
- Publication number
- CN106965642A CN106965642A CN201710057207.6A CN201710057207A CN106965642A CN 106965642 A CN106965642 A CN 106965642A CN 201710057207 A CN201710057207 A CN 201710057207A CN 106965642 A CN106965642 A CN 106965642A
- Authority
- CN
- China
- Prior art keywords
- air conditioner
- board air
- electrokinetic cell
- temperature
- entire car
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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
- B60H1/00357—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
- B60H1/00421—Driving arrangements for parts of a vehicle air-conditioning
- B60H1/00428—Driving arrangements for parts of a vehicle air-conditioning electric
-
- 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
- B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
- B60H1/00735—Control systems or circuits characterised by their input, i.e. by the detection, measurement or calculation of particular conditions, e.g. signal treatment, dynamic models
-
- 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
- B60H1/32—Cooling devices
- B60H1/3204—Cooling devices using compression
- B60H1/3205—Control means therefor
- B60H1/3208—Vehicle drive related control of the compressor drive means, e.g. for fuel saving purposes
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/88—Optimized components or subsystems, e.g. lighting, actively controlled glasses
Abstract
A kind of on-board air conditioner driving method of electric automobile based on entire car controller, when carrying out refrigerating operation, electrokinetic cell supply line carries out refrigeration work by compressor relay control on-board air conditioner, when carrying out heating operation, electrokinetic cell supply line carries out heating work by PTC Controls on-board air conditioner；In the design temperature temperature tolerance setting up and down for including design temperature, no matter heat or freeze, when vehicle interior temperature enters the range of tolerable variance, entire car controller can close PTC relays, or send order by CAN, compressor is maintained current rotating speed.Its advantage is on the premise of power performance is ensured, to realize the control of on-board air conditioner vehicle interior temperature.If motor torque is larger needed for vehicle to run, and electrokinetic cell electricity can not meet requirement, or the electricity of electrokinetic cell is relatively low, close the vehicle-mounted air-conditioning of electric automobile；In the case where motor torque needed for vehicle is reduced, on-board air conditioner can be started again, adjust vehicle interior temperature.
Description
Technical field
The present invention relates to electric vehicle engineering field, vehicle-mounted sky of more particularly to a kind of electric automobile based on entire car controller
Adjust driving method.
Background technology
Electric automobile has very big difference with orthodox car, and its on-board air conditioner existed driving is also different.Orthodox car car
Carry compressor of air conditioner to drive by engine, the refrigeration of vehicle, heating effect are influenceed by engine speed, vehicle interior temperature is adjusted
The stability and accuracy of section are poor, and electric automobile by electrokinetic cell is individually for special motor compressor powers and made
It is cold, it is individually for PTC thermistor and powers and heated with constant power, vehicle interior temperature regulation is stably and controllable.Control compression
The motor speed of machine, the switch of PTC relays adjusts vehicle interior temperature.Such as Chinese invention patent CN104019527A public affairs
Accuse, using entire car controller, communicated with compressor controller, realize vehicle interior temperature control.But due to not accounting for vehicle power
Property requirement, in electrokinetic cell not enough power supply, air-conditioner temperature control only consider vehicle interior temperature regulation, it is impossible to meet vehicle power
The requirement of property.
The content of the invention
It is an object of the invention to provide one kind on the premise of power performance is ensured, on-board air conditioner vehicle interior temperature is realized
Control.If motor torque is larger needed for vehicle to run, and electrokinetic cell electricity can not meet requirement, or electrokinetic cell electricity
Amount is relatively low, to ensure the demand of power performance, should close the vehicle-mounted air-conditioning of electric automobile, and motor torque is reduced needed for vehicle
In the case of, electrokinetic cell meets the demand of vehicle power, and it is sufficient that this situation is considered as electrokinetic cell electricity, air-conditioning can normal work,
Adjust on-board air conditioner driving method of the electric automobile based on entire car controller of vehicle interior temperature.
The solution of the present invention is such：
On-board air conditioner driving method of a kind of electric automobile based on entire car controller, by the electrokinetic cell of electric automobile to vehicle-mounted sky
Power supply is adjusted, its feature is as follows：Including step：
（1）Check electrokinetic cell electricity whether sufficient steps：Entire car controller receives battery management system by high-speed CAN bus
The electrokinetic cell electric quantity signal of transmission, receives Motor torque and motor speed information that electric machine controller is sent, detects power electric
Whether pond electricity is less than 30%, if set up, electrokinetic cell not enough power supply；Detection motor torque is turned round in exportable maximum motor
During square more than 90%, whether motor speed changes, if motor speed illustrates electrokinetic cell now in continuous reduce
Not enough power supply；When electrokinetic cell electricity is sufficient, following operate is carried out；
（2）Electricity setting and refrigeration, heating needs selection step on on-board air conditioner：Upper electric establishing method is：Opened in total relay
After can be powered to on-board air conditioner；Refrigeration, heating needs system of selection are：Entire car controller freezes or heated according to switching signal
Requirement, temperature outside car is compared with design temperature, if vehicle interior temperature be higher than design temperature, carry out refrigerating operation, if
Vehicle interior temperature is less than design temperature, then carries out heating operation；
（3）On-board air conditioner control strategy：When carrying out refrigerating operation, compressor passes through in the electrokinetic cell supply line of electric automobile
Control on-board air conditioner carries out refrigeration work, when carrying out heating operation, the electrokinetic cell supply line warp of electric automobile
PTC Controls on-board air conditioner is crossed to carry out heating work；
（4）On-board air conditioner temperature allowance regulating step：In the design temperature temperature tolerance setting up and down for including design temperature,
No matter heat or freeze, when vehicle interior temperature enters the range of tolerable variance, entire car controller can close PTC relays, or pass through CAN
Bus sends order, compressor is maintained current rotating speed, the number of times to reduce relay switch, reduce compressor and PTC after
Electrical equipment adhesion；
（4）On-board air conditioner deenergizing step：On-board air conditioner is using two kinds of power-off methods, and the first is due to that air-conditioning switch button is closed
Close, on-board air conditioner is powered off, second is the minimum work electricity for setting electrokinetic cell, is set when electrokinetic cell electricity is less than
During fixed minimum operating voltage, on-board air conditioner is powered off by entire car controller.
More specifically technical scheme also includes：The entire car controller is the temperature controller of on-board air conditioner.
Further：The compressor connects low speed CAN, the communication between the compressor and full-vehicle control of on-board air conditioner
Completed by low speed CAN.
Further：The step（1）In, on-board air conditioner could be opened normally in the case where total relay is closed
Closing motion.
Further：Described PTC switch controls PTC is heated, and compressor relay controls the power supply of compressor, and it cools
Process also needs to compressor rotary speed to control.
It is an advantage of the invention that on the premise of power performance is ensured, realizing the control of on-board air conditioner vehicle interior temperature.Such as
Motor torque needed for fruit vehicle to run is larger, and electrokinetic cell electricity can not meet requirement, or the electricity of electrokinetic cell is relatively low, is
Ensure the demand of power performance, the vehicle-mounted air-conditioning of electric automobile should be closed, in the case where motor torque needed for vehicle is reduced, move
Power battery meets the demand of vehicle power, and this situation is considered as electrokinetic cell electricity abundance, and air-conditioning can normal work, the in-car temperature of regulation
Degree.
Brief description of the drawings
Fig. 1 is on-board air conditioner driving method flow chart of the electric automobile of the present invention based on entire car controller.
Fig. 2 is on-board air conditioner driving method schematic diagram of the electric automobile of the present invention based on entire car controller.
Embodiment
As shown in Figure 1, 2, the present invention includes step：
（1）Check electrokinetic cell electricity whether sufficient steps：Entire car controller receives battery management system by high-speed CAN bus
The electrokinetic cell electric quantity signal of transmission, receives Motor torque and motor speed information that electric machine controller is sent, detects power electric
Whether pond electricity is less than 30%, if set up, electrokinetic cell not enough power supply；Detection motor torque is turned round in exportable maximum motor
During square more than 90%, whether motor speed changes, if motor speed illustrates electrokinetic cell now in continuous reduce
Not enough power supply；When electrokinetic cell electricity is sufficient, following operate is carried out；
（2）Electricity sets and freezes, heats selection step on on-board air conditioner：Upper electric establishing method is：Rear is opened in total relay
It can be powered to on-board air conditioner；Freeze, heat system of selection and be：The requirement that entire car controller freezes or heated according to switching signal,
Temperature outside car is compared with design temperature, if vehicle interior temperature is higher than design temperature, refrigerating operation is carried out, if vehicle interior temperature
Less than design temperature, then heating operation is carried out；
（3）On-board air conditioner control strategy：When carrying out refrigerating operation, compressor passes through in the electrokinetic cell supply line of electric automobile
Control on-board air conditioner carries out refrigeration work, when carrying out heating operation, the electrokinetic cell supply line warp of electric automobile
PTC Controls on-board air conditioner is crossed to carry out heating work；
（4）On-board air conditioner temperature allowance regulating step：In the design temperature temperature tolerance setting up and down for including design temperature,
No matter heat or freeze, when vehicle interior temperature enters the range of tolerable variance, entire car controller can close PTC relays, or pass through CAN
Bus sends order, compressor is maintained current rotating speed, the number of times to reduce relay switch, reduce compressor and PTC after
Electrical equipment adhesion；
（4）On-board air conditioner deenergizing step：On-board air conditioner is using two kinds of power-off methods, and the first is closed by air-conditioning switch button
Close and on-board air conditioner is powered off, second is the minimum work electricity for setting electrokinetic cell, is set when electrokinetic cell electricity is less than
During fixed minimum operating voltage, on-board air conditioner is powered off by entire car controller.
The entire car controller is the temperature controller of on-board air conditioner；The compressor connects low speed CAN, vehicle-mounted sky
Communication between the compressor and full-vehicle control of tune is completed by low speed CAN：The step（2）In, on-board air conditioner always after
Electrical equipment could carry out normal work in the case of closing：Described PTC switch controls PTC is heated, compressor relay control pressure
The power supply of contracting machine, its temperature-fall period also needs to compressor rotary speed to control.
It is the step of the flow control method shown in Fig. 1：
The success of electric automobile high-voltage preliminary filling, the total relay closure of vehicle control unit controls.
Entire car controller receives the information of motor torque and rotating speed, with reference to the electricity of electrokinetic cell, judges that electrokinetic cell is
No not enough power supply, if not enough power supply, on-board air conditioner is stopped；If electricity is sufficient, electricity success, beam worker on on-board air conditioner
Make.
Entire car controller receives the hollow tune switch signal message of instrument board by low speed CAN, receives TEMP
Device measures car internal and external temperature, if receiving cooling signals, air-conditioning enters refrigeration mode, if outdoor temperature is more than design temperature,
Open compressor relay；If outdoor temperature is less than design temperature, the air-conditioning switch signal in instrument board is continued checking for.If
Receive and heat signal, air-conditioning enters heating mode, if outdoor temperature is less than design temperature, close PTC relays；If outdoor
Temperature is more than setting stabilization, then opens PTC relays；If receiving stop signal, air-conditioning is stopped.
When on-board air conditioner starts to heat, PTC heaters are started working, if the difference of design temperature and vehicle interior temperature exists
Within 0.5 oC, PTC relays are closed；Otherwise, on-board air conditioner continues to heat.
When on-board air conditioner starts refrigeration, its control mode is different from heating mode, and compressor freezes refrigerant compression
Agent temperature rise, within the condenser, cooling agent is radiated by air, coolant temperature reduction, cooling agent by throttling arrangement,
Evaporated in evaporator, absorb the heat of the air passed through, reach the purpose of cooling.Entire car controller by low speed CAN,
The motor speed of compressor is controlled, the purpose of regulation vehicle interior temperature is reached.It is assumed that on-board air conditioner temperature allowance is design temperature
Difference is within 0.5 oC, if the difference of vehicle interior temperature and design temperature is within 0.5 oC, and compressor maintains current motor to turn
Speed.
When the switching signal of instrument board changes again, in the mode that heats, close compressor relay, air-conditioning is initially entered
This heat pattern；PTC relays are closed in refrigeration mode, air-conditioning initially enters refrigeration mode；In stop mode, close compressor and
PTC relays.
Below by a specific embodiment, the present invention is described in detail：
（1）Total positive relay closure step：Key is in ON gears, when key goes to start gears and returns to ON gears, vapour
Overall height pressure preliminary filling success, total positive relay closure.
（2）Check electrokinetic cell electricity whether sufficient steps：Entire car controller receives battery management by high-speed CAN bus
The electrokinetic cell electric quantity signal that system is sent, receives Motor torque and motor speed information that electric machine controller is sent, and detection is dynamic
Whether power battery electric quantity is less than 30%, if set up, electrokinetic cell not enough power supply；Detect motor torque in exportable maximum electricity
During machine moment of torsion more than 90%, whether motor speed changes, if motor speed illustrates power now in continuous reduce
Battery electric quantity is not enough.
（3）When electrokinetic cell electricity is sufficient, air-conditioning preparation, entire car controller is examined by low speed CAN and received
Air-conditioning switch signal on instrument board, receives refrigeration or heating mode, and design temperature information determines the mode of operation of air-conditioning.
（4）Entire car controller receives the temperature signal of in-car outer sensor, in a heating mode, compares the outer temperature of car with setting
Constant temperature degree, the outer temperature of car is more than design temperature, closes PTC relays;The outer temperature of car is less than design temperature, opens PTC relays.
Under hot chill formula, compare the outer temperature of car and design temperature, the outer temperature of car is more than design temperature, opens compressor relay, empty
Tune to open beginning refrigeration;The outer temperature of car is less than design temperature, close compressor relay.
(5) when the on-board air conditioner switching signal of instrument board changes, the change of foundation switching signal is opened and closed corresponding
Relay.In the mode that heats, close compressor relay；In refrigeration mode, PTC relays are closed；In stopping mould
Formula, close compressor and PTC relays.
If air-conditioning normally starts, full-vehicle control, electric machine controller, battery management controller and CAN communication must
Must be working properly, total positive relay of on-board air conditioner circuit could be closed, and on-board air conditioner can be normally upper electric.
The step（1）In, total relay could be closed in high pressure after electricity success, and on-board air conditioner could work, vehicle-mounted
Electricity is practical in ability only in vehicle operation for air-conditioning.
The step（2）In, whether electrokinetic cell electricity is not enough, is at 2 points：Any is that battery electric quantity is smaller, it is impossible to full
The requirement of sufficient motor torque；Torque is larger needed for motor, and electrokinetic cell can not provide larger current.What two kinds of electrokinetic cells were not enough
Influence of the situation to air-conditioning is different.
The step（3）In, entire car controller receives the switching signal of instrument air-conditioning, and system is determined by switching signal
Cold still to heat, the Schema control of on-board air conditioner is manual control.
The step（4）In, the control of on-board air conditioner refrigeration is carried out by compressor, different compressors motor speed pair
The compression horsepower of refrigerant is different, and the refrigerating capacity of on-board air conditioner is different, and car is adjusted by the control of the motor speed of compressor
Interior temperature.
The step（5）In, the on-board air conditioner button of instrument board has Three models, freezes, heats and stops, and is stopping mould
Under formula, air-conditioning is stopped.The change of instrument board on-board air conditioner button state, works when ensureing that cooling and warming mode is different,
Operated accordingly.
Claims (5)
1. on-board air conditioner driving method of a kind of electric automobile based on entire car controller, by the electrokinetic cell of electric automobile to vehicle-mounted
Air-conditioning is powered, and its feature is as follows：Including step：
Check electrokinetic cell electricity whether sufficient steps：Entire car controller receives battery management system by high-speed CAN bus and sent out
The electrokinetic cell electric quantity signal sent, receives Motor torque and motor speed information that electric machine controller is sent, detects electrokinetic cell
Whether electricity is less than 30%, if set up, electrokinetic cell not enough power supply；Detect motor torque in exportable maximum motor moment of torsion
When more than 90%, whether motor speed changes, if motor speed is in continuous reduce, illustrates electrokinetic cell electricity now
Amount is not enough；When electrokinetic cell electricity is sufficient, following operate is carried out；
Electricity setting and refrigeration, the selection step heated on on-board air conditioner：Upper electric establishing method is：Can after total relay opening
Powered to on-board air conditioner；The system of selection freeze, heated is：The requirement that entire car controller freezes or heated according to switching signal,
Temperature outside car is compared with design temperature, if vehicle interior temperature is higher than design temperature, refrigerating operation is carried out, if vehicle interior temperature
Less than design temperature, then heating operation is carried out；
On-board air conditioner control strategy：When being made, cold operation when, the electrokinetic cell supply line of electric automobile by compressor after
Electrical equipment control on-board air conditioner carries out refrigeration work, when carrying out heating operation, and the electrokinetic cell supply line of electric automobile is passed through
PTC Controls on-board air conditioner carries out heating work；
On-board air conditioner temperature allowance regulating step：In the design temperature temperature tolerance setting up and down for including design temperature, nothing
By heating or freezing, when vehicle interior temperature enters the range of tolerable variance, entire car controller can close PTC relays, or total by CAN
Line sends order, compressor is maintained current rotating speed, and the number of times to reduce relay switch reduces compressor and PTC relays
Device adhesion；
On-board air conditioner deenergizing step：On-board air conditioner is using two kinds of power-off methods, and the first is due to that air-conditioning switch button is closed, right
On-board air conditioner is powered off, and second is the minimum work electricity for setting electrokinetic cell, when electrokinetic cell electricity is less than setting
During minimum operating voltage, on-board air conditioner is powered off by entire car controller.
2. on-board air conditioner driving method of the electric automobile according to claim 1 based on entire car controller, it is characterised in that：
The entire car controller is the temperature controller of on-board air conditioner.
3. on-board air conditioner driving method of the electric automobile according to claim 1 based on entire car controller, it is characterised in that：
The compressor connects low speed CAN, and the communication between the compressor and full-vehicle control of on-board air conditioner is by low speed CAN is Lai complete
Into.
4. on-board air conditioner driving method of the electric automobile according to claim 1 based on entire car controller, it is characterised in that：
The step（1）In, on-board air conditioner could carry out normal either on or off action in the case where total relay is closed.
5. on-board air conditioner driving method of the electric automobile according to claim 1 based on entire car controller, it is characterised in that：
Described PTC switch controls PTC is heated, and compressor relay controls the power supply of compressor, and its temperature-fall period also needs to compressor
Rotating speed is controlled.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710057207.6A CN106965642A (en) | 2017-01-26 | 2017-01-26 | On-board air conditioner driving method of the electric automobile based on entire car controller |
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|---|---|---|---|
| CN201710057207.6A CN106965642A (en) | 2017-01-26 | 2017-01-26 | On-board air conditioner driving method of the electric automobile based on entire car controller |
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| CN106965642A true CN106965642A (en) | 2017-07-21 |
Family
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108162722A (en) * | 2017-12-29 | 2018-06-15 | 豫新汽车空调股份有限公司 | A kind of electric vehicle PTC logic control systems |
| CN109278568A (en) * | 2018-10-26 | 2019-01-29 | 北京新能源汽车股份有限公司 | A kind of method of adjustment, device and the automobile of Automobile drive power |
| CN109693506A (en) * | 2017-10-20 | 2019-04-30 | 郑州宇通客车股份有限公司 | A kind of electric car and its vehicle interior temperature adjusting method, system |
| CN109878291A (en) * | 2019-03-13 | 2019-06-14 | 浙江吉利新能源商用车集团有限公司 | Vehicle temperature adjustment control method and system |
| CN111993858A (en) * | 2020-08-25 | 2020-11-27 | 奇瑞商用车（安徽）有限公司 | New energy automobile air conditioner control system and method |
| CN113022262A (en) * | 2019-12-24 | 2021-06-25 | 北汽福田汽车股份有限公司 | Control method and device of vehicle electric drive system and vehicle |
| CN113212119A (en) * | 2021-05-26 | 2021-08-06 | 苏丁匠(武汉)科技有限公司 | Vehicle-mounted oxygen generation system of electric vehicle |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109693506A (en) * | 2017-10-20 | 2019-04-30 | 郑州宇通客车股份有限公司 | A kind of electric car and its vehicle interior temperature adjusting method, system |
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| CN109278568A (en) * | 2018-10-26 | 2019-01-29 | 北京新能源汽车股份有限公司 | A kind of method of adjustment, device and the automobile of Automobile drive power |
| CN109278568B (en) * | 2018-10-26 | 2020-04-17 | 北京新能源汽车股份有限公司 | Method and device for adjusting automobile driving force and automobile |
| CN109878291A (en) * | 2019-03-13 | 2019-06-14 | 浙江吉利新能源商用车集团有限公司 | Vehicle temperature adjustment control method and system |
| CN113022262A (en) * | 2019-12-24 | 2021-06-25 | 北汽福田汽车股份有限公司 | Control method and device of vehicle electric drive system and vehicle |
| CN111993858A (en) * | 2020-08-25 | 2020-11-27 | 奇瑞商用车（安徽）有限公司 | New energy automobile air conditioner control system and method |
| CN113212119A (en) * | 2021-05-26 | 2021-08-06 | 苏丁匠(武汉)科技有限公司 | Vehicle-mounted oxygen generation system of electric vehicle |
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