CN105346354A - Air conditioner system for blade electric vehicle and control method - Google Patents
Air conditioner system for blade electric vehicle and control method Download PDFInfo
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- CN105346354A CN105346354A CN201510708228.0A CN201510708228A CN105346354A CN 105346354 A CN105346354 A CN 105346354A CN 201510708228 A CN201510708228 A CN 201510708228A CN 105346354 A CN105346354 A CN 105346354A
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- entire car
- car controller
- compressor
- button
- air
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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
- B60H1/00642—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
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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
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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
- B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
- B60H1/00814—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Air-Conditioning For Vehicles (AREA)
Abstract
The invention discloses an air conditioner system for a blade electric vehicle and a control method. The system comprises a first rotary knob for controlling an air blower, a second rotary knob for controlling a cold-heat throttle, a third button for controlling a compressor and a fourth button for controlling a PTC heater which are arranged an air conditioner panel, the air conditioner panel and a vehicle control unit. The air conditioner panel is used for acquiring button signals of the first rotary knob, the second rotary knob, the third button and the fourth button and sends the acquired button singles to the vehicle control unit. The vehicle control unit is used for controlling the compressor, the PTC heater and a condenser according to the button signals sent by the air conditioner panel, a temperature signal acquired by an evaporator temperature sensor and the battery information sent by a battery management system according to the preset policy so as to achieve the air conditioning function. According to the air conditioner system, on the premise that the air conditioning function is achieved, and the reliability of the air conditioner system is guaranteed, an air conditioner panel controller is omitted, and the air conditioner system cost is lowered.
Description
Technical field
The present invention relates to electric vehicle engineering field, particularly relate to a kind of a/c system and control method of pure electric automobile.
Background technology
Based on the factor of environment, the energy and technical development, energy-conservationly just becoming with new-energy automobile the focus studied various countries.The great attention of government and industry member is obtained as the energy-conservation of one of China's emerging strategic industries and new-energy automobile; development new-energy automobile; especially there is the pure electric automobile of no pollution, zero-emission; not only Chinese energy safety, environmental protection are significant; Ye Shi China automotive field realizes the important directions of transition and upgrade, technological breakthrough simultaneously, is the trend of automotive field Future Development.
In the process of pure electric automobile development, by the current restriction of key components and parts cost (its price is still higher compared with same level traditional vehicle) and single charge continual mileage lower (being about 25% of same level conventional fuel oil car), and then make the numerous common people lower to its acceptance, limit its market to popularize, therefore extend the continual mileage of pure electric automobile and to reduce costs be the hot issue that current vast pure electric automobile generates manufacturer and research institution's research.
Wherein, a/c system is the indispensable component part of automobile, in conventional fuel oil car, air-conditioning compressor starts building to do by engine direct tape splicing, and the energy source of pure electric automobile is high voltage power battery, does not have engine parts, air-conditioning compressor can not be driven as fuel vehicle, therefore pure electric automobile generally adopts motor driven compressor scheme to realize air conditioning function at present, and the operation of a/c system can consume the dynamic power of pure electric automobile and then impact further.
But, a/c system cost height and the short problem of continual mileage that relevant pure electric automobile exists, therefore, how reduced the cost of a/c system by optimization system hardware configuration, and ensure that air conditioning function is very important to pure electric automobile by appropriate design control program.
Summary of the invention
The present invention is intended to solve one of technical matters in correlation technique at least to a certain extent.For this reason, one object of the present invention is the a/c system proposing a kind of pure electric automobile, the cost of a/c system should be reduced by optimization system hardware configuration, and the computing power of relying on entire car controller powerful and abundant interface resource adopt integrating control scheme, realizing air conditioning function, under ensureing the prerequisite of its reliability, eliminate air-conditioning panel controller, reduce a/c system cost.
Second object of the present invention is the control method of the a/c system proposing a kind of pure electric automobile.
To achieve these goals, the a/c system of the pure electric automobile that first aspect present invention proposes, comprise: comprising: entire car controller, compressor controller, compressor, PCT controller, PCT temperature booster, condenser, evaporator temperature sensor and air-conditioning panel, wherein, described air-conditioning panel is provided with the first knob that blowing engine is controlled, the second knob that changes in temperature air door is controlled, the 3rd button that described compressor is controlled, the 4th button that described ptc heater is controlled; Described air-conditioning panel, for gathering the button signal on described first knob, the second knob, the 3rd button and described 4th button, and sends to described entire car controller by collected button signal; Described entire car controller, the battery information that the temperature signal collected for the button signal sent according to described air-conditioning panel, described evaporator temperature sensor, described battery management system send controls, to realize air conditioning function described compressor, described PCT temperature booster and described condenser according to preset strategy.
According to the a/c system of the pure electric automobile of the embodiment of the present invention, by being provided with the first knob controlled blowing engine on air-conditioning panel, to the second knob that changes in temperature air door controls, to the 3rd button that compressor controls, to the 4th button that ptc heater controls, and gather the first knob by air-conditioning panel, second knob, button signal on 3rd button and the 4th button, and collected button signal is sent to entire car controller, then the button signal that sends according to air-conditioning panel of entire car controller, the temperature signal that evaporator temperature sensor collects, battery management system send battery information according to preset strategy to compressor, PCT temperature booster and condenser control, to realize air conditioning function.Thus, the cost of a/c system is reduced by optimization system hardware configuration, and the computing power of relying on entire car controller powerful and abundant interface resource adopt integrating control scheme, realizing air conditioning function, under ensureing the prerequisite of its reliability, eliminate air-conditioning panel controller, reduce a/c system cost.
To achieve these goals, the control method of the a/c system of the pure electric automobile carried out based on the a/c system of first aspect embodiment that second aspect present invention proposes, comprise: described air-conditioning panel gathers the button signal on described first knob, the second knob, the 3rd button and described 4th button, and collected button signal is sent to described entire car controller; The battery information that the temperature signal that the button signal that described entire car controller sends according to described air-conditioning panel, described evaporator temperature sensor collect, described battery management system send controls, to realize air conditioning function described compressor, described PCT temperature booster and described condenser fan according to preset strategy.
According to the control method of the a/c system of the pure electric automobile of the embodiment of the present invention, the button signal on the first knob, the second knob, the 3rd button and the 4th button is gathered by air-conditioning panel, and collected button signal is sent to entire car controller, then the battery information that the temperature signal that entire car controller sends according to air-conditioning panel button signal, evaporator temperature sensor collect, battery management system send controls, to realize air conditioning function compressor, PCT temperature booster and condenser according to preset strategy.Thus, the cost of a/c system is reduced by optimization system hardware configuration, and the computing power of relying on entire car controller powerful and abundant interface resource adopt integrating control scheme, realizing air conditioning function, under ensureing the prerequisite of its reliability, eliminate air-conditioning panel controller, reduce a/c system cost.
Accompanying drawing explanation
Fig. 1 is the structural representation of the a/c system of pure electric automobile according to an embodiment of the invention;
Fig. 2 is the structural representation of the a/c system of pure electric automobile in accordance with another embodiment of the present invention;
Fig. 3 is the diagram of circuit of the control method of the a/c system of pure electric automobile according to an embodiment of the invention;
Fig. 4 is the diagram of circuit of the air conditioning control method under driving pattern according to an embodiment of the invention;
Fig. 5 is the diagram of circuit of the air conditioning control method according to an embodiment of the invention under charge mode.
Reference numeral:
Entire car controller 10, compressor controller 20, compressor 30, PCT controller 40, PCT temperature booster 50, condenser 60, evaporator temperature sensor 70, air-conditioning panel 80, instrument 90, first knob 81, second knob 82, the 3rd button 83 and the 4th button 84.
Detailed description of the invention
Be described below in detail embodiments of the invention, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Be exemplary below by the embodiment be described with reference to the drawings, be intended to for explaining the present invention, and can not limitation of the present invention be interpreted as.
Below with reference to the accompanying drawings a/c system and the control method thereof of the pure electric automobile of the embodiment of the present invention are described.
Fig. 1 is the structural representation of the a/c system of pure electric automobile according to an embodiment of the invention.
As shown in Figure 1, the a/c system of this pure electric automobile, comprise: entire car controller 10, compressor controller 20, compressor 30, PCT (PositiveTemperatureCoefficien, positive temperature coefficient) controller 40, PCT temperature booster 50, condenser 60, evaporator temperature sensor 70 and air-conditioning panel 80, wherein
Air-conditioning panel 80 is provided with the first knob 81 that blowing engine is controlled, the second knob 82 that changes in temperature air door is controlled, the 3rd button 83 that compressor 30 is controlled, the 4th button 84 that ptc heater 50 is controlled.
Wherein, it should be noted that, in order to reduce a/c system cost, air-conditioning panel 80 itself does not have controller.
Particularly, collected button signal for gathering the button signal on the first knob 81, second knob 82, the 3rd button 83 and the 4th button 84, and is sent to entire car controller 10 by air-conditioning panel 80.
The battery information that the temperature signal that entire car controller 10 collects for button signal, the evaporator temperature sensor 70 sent according to air-conditioning panel 80, battery management system send controls, to realize air conditioning function compressor 30, PCT temperature booster 50 and condenser 60 according to preset strategy.
Wherein, the temperature signal that evaporator temperature sensor 70 collects is power supply analog quantity, and entire car controller 10 can parse temperature value corresponding to this temperature signal by prior art receiving temperature signal, and this temperature value is evaporator temperature.
Wherein, entire car controller 10 carries out information interaction with the battery management system of pure electric automobile by CAN mode.
In one embodiment of the invention, in the process that entire car controller 10 pairs of compressors 30 control, entire car controller 10 specifically for:
If entire car controller 10 is less than preset temperature threshold value according to from temperature signal determination evaporator temperature, then entire car controller 10 No starting compressor 30.
If entire car controller 10 is greater than or equal to preset temperature threshold value according to from temperature signal determination evaporator temperature, then entire car controller 10 generates the first enable command and the tachometer value of compressor 30 according to button signal, temperature signal, battery information and preset strategy, and by compressor controller 20, first enable command and tachometer value is sent to compressor 30.
Correspondingly, compressor 30 is specifically for the mode of operation according to the first enable command and tachometer value adjustment self.
In addition, in one embodiment of the invention, in the process that entire car controller 10 pairs of PCT temperature boosters 50 control, entire car controller 10: the button signal send the second enable command by PTC controller 40, collecting from the first knob 81 and send to PCT temperature booster 50 from the button signal that the second knob 82 collects.
Specifically, PCT temperature booster 50 is specifically for according to the second enable command received, the button signal collected from the first knob 81 and the mode of operation of button signal adjustment self that collects from the second knob 82.
Wherein, it should be noted that, above-mentioned preset strategy comprises control policy, energy management strategies and air-conditioning Preservation tactics, and under different vehicle pattern, entire car controller 10 based on strategy different.
In addition, in one embodiment of the invention, as shown in Figure 2, the a/c system of this pure electric automobile can also comprise instrument 90, entire car controller 10 also for: judging that pure electric automobile is in driving pattern, and the battery of pure electric automobile is maximum can be greater than the first predetermined threshold value by discharge power, and when the remaining battery power of electrokinetic cell is greater than or equal to the second predetermined threshold value, entire car controller 10 allows air-conditioning enable, namely allows to open a/c system.
Wherein, the first predetermined threshold value and the second predetermined threshold value all pre-set under driving pattern.
Such as, first predetermined threshold value is 6kw, second predetermined threshold value is 5, particularly, entire car controller 10 obtains the battery information of electrokinetic cell from battery management system by CAN mode, specifically, entire car controller 10 obtains the maximum of electrokinetic cell by CAN mode from battery management system can discharge power and remaining battery power, then, entire car controller 10 judges maximumly whether can be greater than 6kw by discharge power, and whether remaining battery power (SOC) is lower than 5, and judge battery maximum can discharge power be greater than 6kw and SOC is not less than 5 time, entire car controller 10 allows air-conditioning to open, otherwise do not allow air-conditioning enable.
Entire car controller 10, by can discharge power and remaining battery power judging the maximum of electrokinetic cell, can realize the protection to electrokinetic cell, in case stopping power battery caused the generation of to one's heart's content condition because of a/c system work.
In addition, under pure electric automobile is in driving pattern, and in the process of air-conditioning work, entire car controller 10 also for: to vehicle residue continual mileage monitor, and when monitoring vehicle residue continual mileage lower than the 3rd predetermined threshold value, extending driving range since pointing out chaufeur to close air-conditioning by instrument 90.
Wherein, the 3rd predetermined threshold value is in driving pattern at pure electric automobile, and allow in the enable process of air-conditioning, the threshold value of the residue continual mileage of display reminding information in instrument 90 pre-set.
Such as, 3rd predetermined threshold value is 30km, under air-conditioning allows enable condition, entire car controller 10 judges that whether vehicle residue continual mileage is lower than 30km, if lower than this 30km, then entire car controller 10 is pointed out by instrument 90 pairs of chaufeurs, carrys out extending driving range to point out chaufeur by closing a/c system.
Driving pattern is at pure electric automobile, and in the process of air-conditioning work, whether entire car controller 10 is also in opening according to the button signal determination blowing engine collected from the first knob 81, and when blowing engine is in opening, according to the button signal collected from the second knob 82, the button signal collected from the 3rd button 83 and the mode of operation controlling air-conditioning from the button signal that the 4th button 84 collects.
Wherein, driving pattern is at pure electric automobile, and in the process of air-conditioning work, entire car controller 10 is according to the button signal collected from the second knob 82, the button signal collected from the 3rd button 83 and from the detailed process that the button signal that the 4th button 84 collects controls the mode of operation of air-conditioning be:
When the 3rd button 83 and the 4th button 84 are not all pressed or the second knob 82 mediates state, then entire car controller 10 does not control compressor 30 and ptc heater 50, and now air-conditioning is in readiness for action;
When the 3rd button 83 is pressed, then entire car controller 10 sends enable command and tachometer value by CAN network to compressor controller 20.
Wherein, tachometer value is that entire car controller 10 is according to the second knob 82 determined changes in temperature air door position calculation.Tachometer value and the changes in temperature damper positions of compressor are nonlinear relationship, and the second knob 82 is deflection refrigeration side more, then compressor 30 rotating speed is higher, realizes especially by look-up table.
When only the 4th button 84 is pressed, then entire car controller 10 sends the operating power value of enable command and ptc heater 50 to PTC controller 40 by CAN network.
Wherein, the operating power value of ptc heater 50 is that entire car controller 10 is according to the second knob 82 determined changes in temperature air door position calculation.Operating power value and the changes in temperature damper positions of ptc heater 50 are nonlinear relationship, and the second knob 82 is got over deflection and heated side, then the operating power value of ptc heater 50 is higher, realizes especially by look-up table.
When the 3rd button 83 and the 4th button 84 are all pressed, then entire car controller 10 judges these two buttons that is first pressed, and is as the criterion with the button first pressed and controls air-conditioning.
In addition, if the 3rd button 83 and the 4th button 84 are pressed simultaneously, entire car controller 10 controls air-conditioning and is in readiness for action, until " pressing " state of one of them button disappears.
In one embodiment of the invention, except closing except air-conditioning by chaufeur according to prompting, under pure electric automobile is in driving pattern, and in the process of air-conditioning work, if entire car controller 10 judge battery maximum can discharge power lower than the 4th predetermined threshold value and/or remaining battery power lower than the 5th predetermined threshold value, then entire car controller 10 closes air-conditioning.
Wherein, the 4th predetermined threshold value and the 5th predetermined threshold value pre-set.
Such as, 4th predetermined threshold value is 5kw, 5th predetermined threshold value is 3, particularly, under driving pattern, in the process of air-conditioning work, entire car controller 10 obtains the battery information of electrokinetic cell from battery management system, and according to obtained battery information judge battery maximum can discharge power whether lower than 5kw, and remaining battery power (battery SOC (StateofCharge), battery charge state) whether lower than 3, if battery maximum can discharge power lower than 5kw and/or remaining battery power lower than 3, then entire car controller 10 closes air-conditioning, put in case stopping power battery causes because of a/c system work.
In one embodiment of the invention, when entire car controller 10 judges that pure electric automobile is in charge mode, whether entire car controller 10 is also greater than the 6th predetermined threshold value to the remaining battery power of electrokinetic cell judges, and when judging that the remaining battery power of electrokinetic cell is greater than the 6th predetermined threshold value, entire car controller 10 allows air-conditioning enable.
Wherein, the 6th predetermined threshold value is under charge mode, the threshold value of the remaining battery power of the electrokinetic cell that the permission air-conditioning pre-set uses.
Such as, 6th predetermined threshold value is 10, after pure electric automobile powers on, entire car controller 10 judges vehicle mode by prior art, when vehicle is under charge mode, entire car controller 10 obtains the remaining battery power of electrokinetic cell according to battery management system CAN message, consider that air conditioning power battery opened by vehicle SOC when charging likely can reduce (horsepower input of battery is lower than the consumed power of a/c system), to cause because of a/c system work for preventing electrokinetic cell and put, when battery SOC lower than 10 time, forbid that air-conditioning is enable, otherwise allow air-conditioning enable.
Under vehicle is in charge mode, and in the process of air-conditioning work, whether entire car controller 10 is also in opening according to the button signal determination blowing engine collected from the first knob 81, and when blowing engine is in opening, according to the button signal collected from the second knob 82, the button signal collected from the 3rd button 83 and the mode of operation controlling air-conditioning from the button signal that the 4th button 84 collects.
Under vehicle is in charge mode, in the process of air-conditioning work, entire car controller 10 is according to the button signal collected from the second knob 82, the button signal collected from the 3rd button 83 and from the detailed process that the button signal that the 4th button 84 collects controls the mode of operation of air-conditioning be:
When the 3rd button 83 and the 4th button 84 are not all pressed or the second knob 82 mediates state, then entire car controller 10 does not control compressor 30 and ptc heater 50, and now air-conditioning is in readiness for action;
When the 3rd button 83 is pressed, then entire car controller 10 sends enable command and tachometer value by CAN network to compressor controller 20.
Wherein, tachometer value is that entire car controller 10 is according to the second knob 82 determined changes in temperature air door position calculation.Tachometer value and the changes in temperature damper positions of compressor are nonlinear relationship, and the second knob 82 is deflection refrigeration side more, then compressor 30 rotating speed is higher, realizes especially by look-up table.
When only the 4th button 84 is pressed, then entire car controller 10 sends the operating power value of enable command and ptc heater to PTC controller 40 by CAN network.
Wherein, the operating power value of ptc heater 50 is that entire car controller 10 is according to the second knob 82 determined changes in temperature air door position calculation.Operating power value and the changes in temperature damper positions of ptc heater 50 are nonlinear relationship, and the second knob 82 is got over deflection and heated side, then PTC heating, the operating power value of 50 is higher, realizes especially by look-up table.
When the 3rd button 83 and the 4th button 84 are all pressed, then entire car controller 10 judges these two buttons that is first pressed, and is as the criterion with the button first pressed and controls air-conditioning.
In addition, if the 3rd button 83 and the 4th button 84 are pressed simultaneously, entire car controller 10 controls air-conditioning and is in readiness for action, until " pressing " state of one of them button disappears.
When the vehicle mode of pure electric vehicle is in charge mode, in the process of air-conditioning work, if entire car controller 10 judges that the remaining battery power of electrokinetic cell is lower than the 7th predetermined threshold value, then entire car controller 10 closes air-conditioning.
Wherein, the 7th predetermined threshold value be system under charge mode, the threshold value of the remaining battery power of the automatic closedown air-conditioning pre-set.
Such as, 7th predetermined threshold value is 5, under charge mode, in the process of air-conditioning work, entire car controller 10 obtains the remaining battery power of electrokinetic cell by CAN network from battery management system, and judges that whether remaining battery power is lower than 5, if remaining battery power is lower than 5, then entire car controller 10 closes air-conditioning enabled state, and namely entire car controller 10 closes air-conditioning automatically, puts in case stopping power battery causes because of air-conditioning work.
In one embodiment of the invention, in order to reduce the cost of a/c system, condenser 60 and driver for vehicle share radiator fan, and condenser 60 is arranged side by side with the radiator of driver for vehicle, wherein,
In order to protect with extender service life to compressor 30 further; entire car controller 10 also for: when compressor 30 is in work shape; by radiator fan, compressor 30 is dispelled the heat; and after compressor quits work, control radiator fan and again compressor 30 is dispelled the heat preset time period.
Wherein, preset time period is the time value pre-set in a/c system, and such as, preset time period is 30 seconds.
Usually in a period of time after compressor 30 quits work, temperature is still higher, therefore, when chaufeur is by after the 3rd button close compressor 30, the out code of correspondence is sent to compressor 30 by compressor controller 20 by entire car controller 30, compressor 30 cuts out, and after compressor 30 cuts out, entire car controller 10 controls radiator fan to be continued to dispel the heat 30 seconds to compressor 30, and after 30 seconds, entire car controller 10 closes radiator fan.
Consider that in vehicle operation, passengers inside the car exist the possibility of frequent operation the 3rd button, this kind of operation can cause compressor 30 frequently to be opened, and then affect compressor 30 service life, in order to extend compressor 30 service life, entire car controller 10 also for: if judge that the time gap of compressor 30 start and stop is less than Preset Time, then send the first enable command at the rear of time delay Preset Time to compressor 30, to start compressor 30 according to the first enable command.
Wherein, Preset Time is the time value pre-set in a/c system.
Such as; Preset Time is 30 seconds; after there is enable demand in compressor 30; first whether the time of entire car controller 10 judging distance closedown last time is greater than 30s; if meet this condition, then entire car controller 10 sends compressor 30 enable command, otherwise sends enable command after time delay 30s; to realize in start-up course, compressor 30 is protected.
According to the a/c system of the pure electric automobile of the embodiment of the present invention, by being provided with the first knob controlled blowing engine on air-conditioning panel, to the second knob that changes in temperature air door controls, to the 3rd button that compressor controls, to the 4th button that ptc heater controls, and gather the first knob by air-conditioning panel, second knob, button signal on 3rd button and the 4th button, and collected button signal is sent to entire car controller, then the button signal that sends according to air-conditioning panel of entire car controller, the temperature signal that evaporator temperature sensor collects, battery management system send battery information according to preset strategy to compressor, PCT temperature booster and condenser control, to realize air conditioning function.Thus, the cost of a/c system is reduced by optimization system hardware configuration, and the computing power of relying on entire car controller powerful and abundant interface resource adopt integrating control scheme, realizing air conditioning function, under ensureing the prerequisite of its reliability, eliminate air-conditioning panel controller, reduce a/c system cost.
In order to realize above-described embodiment, the control method of the a/c system of the pure electric automobile that the a/c system that the invention allows for a kind of pure electric automobile based on above-described embodiment description carries out.
Fig. 3 is the diagram of circuit of the control method of the a/c system of pure electric automobile according to an embodiment of the invention.
As shown in Figure 3, the control method of the a/c system of this pure electric automobile, comprises the following steps:
S301, air-conditioning panel gathers the button signal on the first knob, the second knob, the 3rd button and the 4th button, and collected button signal is sent to entire car controller.
S302, the battery information that the temperature signal that the button signal that entire car controller sends according to air-conditioning panel, evaporator temperature sensor collect, battery management system send controls, to realize air conditioning function compressor, PCT temperature booster and condenser fan according to preset strategy.
Wherein, it should be noted that, above-mentioned preset strategy comprises control policy, energy management strategies and air-conditioning Preservation tactics, and under different vehicle pattern, entire car controller based on strategy different.
The vehicle mode of usual pure battery car has two kinds, is respectively driving pattern and charge mode, and the strategy that adopts of vehicle control unit controls air-conditioning is different under both modes.
Particularly, after pure electric automobile powers on, entire car controller judges vehicle mode by prior art, to determine that the vehicle mode of pure electric automobile is driving pattern, or charge mode, and after determining the vehicle mode of pure electric automobile, entire car controller adopts strategy correspondingly to control a/c system.
Under driving pattern being in pure electric automobile to entire car controller below in conjunction with Fig. 4, details description is carried out to the process that air-conditioning controls.
Fig. 4 is the diagram of circuit of the air conditioning control method under driving pattern according to an embodiment of the invention.
Under driving pattern, the process that entire car controller controls a/c system, can comprise:
S401, whether entire car controller judges that the battery of pure electric automobile is maximum can be greater than the first predetermined threshold value by discharge power, and whether the remaining battery power of electrokinetic cell is greater than or equal to the second predetermined threshold value, if battery is maximum whether can be greater than the first predetermined threshold value by discharge power, and remaining battery power is greater than or equal to the second predetermined threshold value, then perform step S402, otherwise perform step S403.
S402, entire car controller allows air-conditioning enable.
S403, it is enable that entire car controller closes air-conditioning.
Wherein, the first predetermined threshold value and the second predetermined threshold value all pre-set under driving pattern.
Such as, first predetermined threshold value is 6kw, second predetermined threshold value is 5, particularly, entire car controller obtains the battery information of electrokinetic cell from battery management system by CAN mode, specifically, entire car controller obtains the maximum of electrokinetic cell by CAN mode from battery management system can discharge power and remaining battery power, then, entire car controller judges maximumly whether can be greater than 6kw by discharge power, and whether remaining battery power (SOC) is lower than 5, and judge battery maximum can discharge power be greater than 6kw and SOC is not less than 5 time, entire car controller allows air-conditioning to open, otherwise do not allow air-conditioning enable.
Entire car controller, by can discharge power and remaining battery power judging the maximum of electrokinetic cell, can realize the protection to electrokinetic cell, in case stopping power battery caused the generation of to one's heart's content condition because of a/c system work.
S404, entire car controller is monitored vehicle residue continual mileage, and when monitoring vehicle residue continual mileage lower than the 3rd predetermined threshold value, extending driving range since closing air-conditioning by instrument prompting chaufeur.
Wherein, the 3rd predetermined threshold value is in driving pattern at pure electric automobile, and allow in the enable process of air-conditioning, the threshold value of the residue continual mileage of display reminding information in instrument pre-set.
Such as, 3rd predetermined threshold value is 30km, under air-conditioning allows enable condition, entire car controller judges that whether vehicle residue continual mileage is lower than 30km, if lower than this 30km, then entire car controller is pointed out chaufeur by instrument, carrys out extending driving range to point out chaufeur by closing a/c system.
S405, whether entire car controller is in opening according to the button signal determination blowing engine collected from the first knob, if blowing engine is in opening, then performs step S406, otherwise performs step S401.
Particularly, the state if the first knob mediates, then blowing engine is not activated.
S406, entire car controller is according to the button signal collected from the second knob, the button signal collected from the 3rd button and the mode of operation controlling air-conditioning from the button signal that the 4th button collects.
Wherein, the detailed process of S406 is:
When the 3rd button and the 4th button are not all pressed or the second knob mediates state, then entire car controller does not control compressor and ptc heater, and now air-conditioning is in readiness for action;
When only the 3rd button is pressed, then entire car controller sends enable command and tachometer value by CAN network to compressor controller, and also sends fan demand.
In one embodiment of the invention, after the 3rd button is pressed, if entire car controller is less than preset temperature threshold value according to from temperature signal determination evaporator temperature, then entire car controller No starting compressor.
If entire car controller is greater than or equal to preset temperature threshold value according to from temperature signal determination evaporator temperature, then entire car controller generates the first enable command and the tachometer value of compressor according to button signal, temperature signal, battery information and preset strategy, and by compressor controller, the first enable command and tachometer value is sent to compressor.Correspondingly, compressor adjusts the mode of operation of self according to the first enable command and tachometer value.
Wherein, it should be noted that, tachometer value is that entire car controller is according to the second knob determined changes in temperature air door position calculation.Tachometer value and the changes in temperature damper positions of compressor are nonlinear relationship, and refrigeration side is more partial to by the second knob, and then compressor rotary speed is higher, realizes especially by look-up table.
In addition, it is to be appreciated that in the process of compressor operating, entire car controller also controls radiator fan and dispels the heat to compressor.
In one embodiment of the invention, in order to reduce the cost of a/c system, condenser and the driver for vehicle of above-mentioned a/c system share radiator fan, the radiator of condenser and driver for vehicle is arranged side by side, wherein, entire car controller, when compressor is in work shape, is dispelled the heat to compressor by radiator fan.
In order to improve the service life of compressor further, after compressor quits work, entire car controller, controls radiator fan again to compressor heat radiation preset time period.
Usually in a period of time after compressor quits work, temperature is still higher, therefore, when chaufeur is by after the 3rd button close compressor, the out code of correspondence is sent to compressor by compressor controller by entire car controller, compressor cuts out, and after compressor cuts out, vehicle control unit controls radiator fan continues to dispel the heat 30 seconds to compressor, and after 30 seconds, entire car controller closes radiator fan.
When only the 4th button is pressed, then entire car controller sends the operating power value of enable command and ptc heater to PTC controller by CAN network.
In one embodiment of the invention, after only the 4th button is pressed, the detailed process that vehicle control unit controls PCT temperature booster carries out work is:
The button signal that entire car controller sends the second enable command by PTC controller, collect from the first knob and send to PCT temperature booster from the button signal that the second knob collects.Correspondingly, PCT temperature booster is according to the second enable command received, the button signal collected from the first knob and the mode of operation of button signal adjustment self that collects from the second knob.
Wherein, the operating power value of ptc heater is that entire car controller is according to the second knob determined changes in temperature air door position calculation.Operating power value and the changes in temperature damper positions of ptc heater are nonlinear relationship, and the second knob is got over deflection and heated side, then the operating power value of ptc heater is higher, realizes especially by look-up table.
When the 3rd button and the 4th button are all pressed, then entire car controller judges these two buttons that is first pressed, and is as the criterion with the button first pressed and controls air-conditioning.
In addition, if the 3rd button and the 4th button are pressed simultaneously, vehicle control unit controls air-conditioning is in readiness for action, until " pressing " state of one of them button disappears.
S408, entire car controller judge battery maximum can discharge power whether lower than the 4th predetermined threshold value and remaining battery power whether lower than the 5th predetermined threshold value, if battery maximum can discharge power lower than the 4th predetermined threshold value and/or remaining battery power whether lower than the 5th predetermined threshold value, then perform step S403, otherwise perform step S402.
Wherein, the 4th predetermined threshold value and the 5th predetermined threshold value pre-set.
Such as, 4th predetermined threshold value is 5kw, 5th predetermined threshold value is 3, particularly, under driving pattern, in the process of air-conditioning work, entire car controller obtains the battery information of electrokinetic cell from battery management system, and according to obtained battery information judge battery maximum can discharge power whether lower than 5kw, and remaining battery power (battery SOC (StateofCharge), battery charge state) whether lower than 3, if battery maximum can discharge power lower than 5kw and/or remaining battery power lower than 3, then entire car controller closes air-conditioning, put in case stopping power battery causes because of a/c system work.
Under driving pattern being in pure electric automobile to entire car controller below in conjunction with Fig. 5, details description is carried out to the process that air-conditioning controls.
Fig. 5 is the diagram of circuit of the air conditioning control method according to an embodiment of the invention under charge mode.
Under driving pattern, the process that entire car controller controls a/c system, can comprise:
S501, entire car controller judges whether the remaining battery power of the electrokinetic cell of pure electric automobile is greater than the 6th predetermined threshold value, if remaining battery power is greater than the 6th predetermined threshold value, then performs step S502, otherwise performs step S503.
S502, entire car controller allows air-conditioning enable.
S503, it is enable that entire car controller closes air-conditioning.
Wherein, the 6th predetermined threshold value is under charge mode, the threshold value of the remaining battery power of the electrokinetic cell that the permission air-conditioning pre-set uses.
Such as, 6th predetermined threshold value is 10, after pure electric automobile powers on, entire car controller judges vehicle mode by prior art, when vehicle is under charge mode, entire car controller obtains the remaining battery power of electrokinetic cell according to battery management system CAN message, consider that air conditioning power battery opened by vehicle SOC when charging likely can reduce (horsepower input of battery is lower than the consumed power of a/c system), to cause because of a/c system work for preventing electrokinetic cell and put, when battery SOC lower than 10 time, forbid that air-conditioning is enable, otherwise allow air-conditioning enable.
S504, whether entire car controller is in opening according to the button signal determination blowing engine collected from the first knob, if blowing engine is in opening, then performs step S505, otherwise performs step S501.
Particularly, the state if the first knob mediates, then blowing engine is not activated.
S505, entire car controller is according to the button signal collected from the second knob, the button signal collected from the 3rd button and the mode of operation controlling air-conditioning from the button signal that the 4th button collects.
Wherein, the detailed process of S505 is:
When the 3rd button and the 4th button are not all pressed or the second knob mediates state, then entire car controller does not control compressor and ptc heater, and now air-conditioning is in readiness for action;
When only the 3rd button is pressed, then entire car controller sends enable command and tachometer value by CAN network to compressor controller, and also sends fan demand.
In one embodiment of the invention, after the 3rd button is pressed, if entire car controller is less than preset temperature threshold value according to from temperature signal determination evaporator temperature, then entire car controller No starting compressor.
If entire car controller is greater than or equal to preset temperature threshold value according to from temperature signal determination evaporator temperature, then entire car controller generates the first enable command and the tachometer value of compressor according to button signal, temperature signal, battery information and preset strategy, and by compressor controller, the first enable command and tachometer value is sent to compressor.Correspondingly, compressor adjusts the mode of operation of self according to the first enable command and tachometer value.
Wherein, it should be noted that, tachometer value is that entire car controller is according to the second knob determined changes in temperature air door position calculation.Tachometer value and the changes in temperature damper positions of compressor are nonlinear relationship, and refrigeration side is more partial to by the second knob, and then compressor rotary speed is higher, realizes especially by look-up table.
In addition, it is to be appreciated that in the process of compressor operating, entire car controller also controls radiator fan and dispels the heat to compressor.
In one embodiment of the invention, in order to reduce the cost of a/c system, condenser and the driver for vehicle of above-mentioned a/c system share radiator fan, the radiator of condenser and driver for vehicle is arranged side by side, wherein, entire car controller, when compressor is in work shape, is dispelled the heat to compressor by radiator fan.
In order to improve the service life of compressor further, after compressor quits work, entire car controller, controls radiator fan again to compressor heat radiation preset time period.
Usually in a period of time after compressor quits work, temperature is still higher, therefore, when chaufeur is by after the 3rd button close compressor, the out code of correspondence is sent to compressor by compressor controller by entire car controller, compressor cuts out, and after compressor cuts out, vehicle control unit controls radiator fan continues to dispel the heat 30 seconds to compressor, and after 30 seconds, entire car controller closes radiator fan.
When only the 4th button is pressed, then entire car controller sends the operating power value of enable command and ptc heater to PTC controller by CAN network.
In one embodiment of the invention, after only the 4th button is pressed, the detailed process that vehicle control unit controls PCT temperature booster carries out work is:
The button signal that entire car controller sends the second enable command by PTC controller, collect from the first knob and send to PCT temperature booster from the button signal that the second knob collects.Correspondingly, PCT temperature booster is according to the second enable command received, the button signal collected from the first knob and the mode of operation of button signal adjustment self that collects from the second knob.
Wherein, the operating power value of ptc heater is that entire car controller is according to the second knob determined changes in temperature air door position calculation.Operating power value and the changes in temperature damper positions of ptc heater are nonlinear relationship, and it is higher that the operating power value heating side then ptc heater is more partial to by the second knob, realizes especially by look-up table.
When the 3rd button and the 4th button are all pressed, then entire car controller judges these two buttons that is first pressed, and is as the criterion with the button first pressed and controls air-conditioning.
In addition, if the 3rd button and the 4th button are pressed simultaneously, vehicle control unit controls air-conditioning is in readiness for action, until " pressing " state of one of them button disappears.
S506, entire car controller judges that whether the remaining battery power of electrokinetic cell is lower than the 7th predetermined threshold value, if judge that the remaining battery power of electrokinetic cell is lower than the 7th predetermined threshold value, then performs step S503, otherwise performs step S502.
Wherein, the 7th predetermined threshold value be system under charge mode, the threshold value of the remaining battery power of the automatic closedown air-conditioning pre-set.
Such as, 7th predetermined threshold value is 5, under charge mode, in the process of air-conditioning work, entire car controller obtains the remaining battery power of electrokinetic cell by CAN network from battery management system, and judges that whether remaining battery power is lower than 5, if remaining battery power is lower than 5, then entire car controller closes air-conditioning enabled state, and namely entire car controller closes air-conditioning automatically, puts in case stopping power battery causes because of air-conditioning work.
In one embodiment of the invention, consider that in vehicle operation, passengers inside the car exist the possibility of frequent operation the 3rd button, this kind of operation can cause high frequent to be opened, and then affect compressor service life, in order to extend compressor service life, if entire car controller judges that the time gap of start/stop of compressor is less than Preset Time, then entire car controller sends the first enable command at the rear of time delay Preset Time to compressor, starts compressor to make compressor according to the first enable command.
Wherein, Preset Time is the time value pre-set in a/c system.
Such as; Preset Time is 30 seconds; after there is enable demand in compressor; first whether the time of entire car controller judging distance closedown last time is greater than 30s; if meet this condition, then entire car controller sends compressor enable command, otherwise sends enable command after time delay 30s; to realize in start-up course, compressor is protected.
According to the control method of the a/c system of the pure electric automobile of the embodiment of the present invention, the button signal on the first knob, the second knob, the 3rd button and the 4th button is gathered by air-conditioning panel, and collected button signal is sent to entire car controller, then the battery information that the temperature signal that entire car controller sends according to air-conditioning panel button signal, evaporator temperature sensor collect, battery management system send controls, to realize air conditioning function compressor, PCT temperature booster and condenser according to preset strategy.Thus, the cost of a/c system is reduced by optimization system hardware configuration, and the computing power of relying on entire car controller powerful and abundant interface resource adopt integrating control scheme, realizing air conditioning function, under ensureing the prerequisite of its reliability, eliminate air-conditioning panel controller, reduce a/c system cost.
In describing the invention, it will be appreciated that, term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ", " thickness ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end " " interior ", " outward ", " cw ", " conter clockwise ", " axis ", " radial direction ", orientation or the position relationship of the instruction such as " circumference " are based on orientation shown in the drawings or position relationship, only the present invention for convenience of description and simplified characterization, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore limitation of the present invention can not be interpreted as.
In addition, term " first ", " second " only for describing object, and can not be interpreted as instruction or hint relative importance or imply the quantity indicating indicated technical characteristic.Thus, be limited with " first ", the feature of " second " can express or impliedly comprise at least one this feature.In describing the invention, the implication of " multiple " is at least two, such as two, three etc., unless otherwise expressly limited specifically.
In the present invention, unless otherwise clearly defined and limited, the term such as term " installation ", " being connected ", " connection ", " fixing " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or integral; Can be mechanical connection, also can be electrical connection; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals or the interaction relationship of two elements, unless otherwise clear and definite restriction.For the ordinary skill in the art, above-mentioned term concrete meaning in the present invention can be understood as the case may be.
In the present invention, unless otherwise clearly defined and limited, fisrt feature second feature " on " or D score can be that the first and second features directly contact, or the first and second features are by intermediary indirect contact.And, fisrt feature second feature " on ", " top " and " above " but fisrt feature directly over second feature or oblique upper, or only represent that fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " below " and " below " can be fisrt feature immediately below second feature or tiltedly below, or only represent that fisrt feature level height is less than second feature.
In the description of this specification sheets, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present invention or example.In this manual, to the schematic representation of above-mentioned term not must for be identical embodiment or example.And the specific features of description, structure, material or feature can combine in one or more embodiment in office or example in an appropriate manner.In addition, when not conflicting, the feature of the different embodiment described in this specification sheets or example and different embodiment or example can carry out combining and combining by those skilled in the art.
Although illustrate and describe embodiments of the invention above, be understandable that, above-described embodiment is exemplary, can not be interpreted as limitation of the present invention, and those of ordinary skill in the art can change above-described embodiment within the scope of the invention, revises, replace and modification.
Claims (16)
1. an a/c system for pure electric automobile, is characterized in that, comprising: entire car controller, compressor controller, compressor, PCT controller, PCT temperature booster, condenser, evaporator temperature sensor and air-conditioning panel, wherein,
Described air-conditioning panel is provided with the first knob that blowing engine is controlled, the second knob that changes in temperature air door is controlled, the 3rd button that described compressor is controlled, the 4th button that described ptc heater is controlled;
Described air-conditioning panel, for gathering the button signal on described first knob, the second knob, the 3rd button and described 4th button, and sends to described entire car controller by collected button signal;
Described entire car controller, the battery information that the temperature signal collected for the button signal sent according to described air-conditioning panel, described evaporator temperature sensor, described battery management system send controls, to realize air conditioning function described compressor, described PCT temperature booster and described condenser according to preset strategy.
2. the a/c system of pure electric automobile as claimed in claim 1, is characterized in that,
If described entire car controller is less than preset temperature threshold value according to from described temperature signal determination evaporator temperature, then compressor described in described entire car controller No starting;
If described entire car controller is greater than or equal to preset temperature threshold value according to from described temperature signal determination evaporator temperature, then described entire car controller generates the first enable command and the tachometer value of described compressor according to described button signal, described temperature signal, described battery information and preset strategy, and by described compressor controller, described first enable command and described tachometer value is sent to described compressor;
Described compressor, specifically for the mode of operation according to described first enable command and described tachometer value adjustment self;
Described entire car controller, specifically for sending the second enable command, the button signal that collects from described first knob and send to described PCT temperature booster from the button signal that described second knob collects by described PTC controller;
Described PCT temperature booster, specifically for according to described second enable command received, the button signal collected from described first knob and the mode of operation of button signal adjustment self that collects from described second knob.
3. the a/c system of pure electric automobile as claimed in claim 1, it is characterized in that, described condenser and driver for vehicle share radiator fan, and the radiator of described condenser and described driver for vehicle is arranged side by side, wherein,
Described entire car controller, also for when described compressor is in work shape, is dispelled the heat to described compressor by described radiator fan, and after described compressor quits work, controls described radiator fan again to described compressor heat radiation preset time period.
4. the a/c system of pure electric automobile as claimed in claim 1, is characterized in that,
If described entire car controller judges that the time gap of described start/stop of compressor is less than Preset Time, then described in time delay, the rear of Preset Time sends the first enable command to described compressor, starts described compressor to make described compressor according to described first enable command.
5. the a/c system of pure electric automobile as claimed in claim 2, is characterized in that, also comprise: instrument, wherein,
If described entire car controller judges that pure electric automobile is in driving pattern, and the battery of described pure electric automobile is maximum can be greater than the first predetermined threshold value by discharge power, and the remaining battery power of electrokinetic cell is greater than or equal to the second predetermined threshold value, then described entire car controller allows air-conditioning enable, and in the process of described air-conditioning work, described entire car controller is also monitored vehicle residue continual mileage, and when monitoring described vehicle residue continual mileage lower than the 3rd predetermined threshold value, extending driving range since closing described air-conditioning by described instrument prompting chaufeur.
6. the a/c system of pure electric automobile as claimed in claim 5, it is characterized in that, in the process of described air-conditioning work, if described entire car controller judge described battery maximum can discharge power lower than the 4th predetermined threshold value and/or described remaining battery power lower than the 5th predetermined threshold value, then described entire car controller closes described air-conditioning.
7. the a/c system of pure electric automobile as claimed in claim 2, is characterized in that,
If described entire car controller judges that pure electric automobile is in charge mode, and the remaining battery power of electrokinetic cell is greater than the 6th predetermined threshold value, then described entire car controller allows air-conditioning enable;
In the process of described air-conditioning work, according to the button signal collected from described first knob, described entire car controller also determines whether described blowing engine is in opening, and when described blowing engine is in opening, and according to the button signal collected from described second knob, the button signal collected from described 3rd button and the mode of operation controlling described air-conditioning from the button signal that described 4th button collects.
8. the a/c system of pure electric automobile as claimed in claim 7, it is characterized in that, in the process of described air-conditioning work, if described entire car controller judges that the remaining battery power of described electrokinetic cell is lower than the 7th predetermined threshold value, then described entire car controller closes described air-conditioning.
9. use the a/c system of pure electric automobile as described in any one of claim 1-8 the control method of the a/c system of pure electric automobile of carrying out, it is characterized in that, comprise the following steps:
Described air-conditioning panel gathers the button signal on described first knob, the second knob, the 3rd button and described 4th button, and collected button signal is sent to described entire car controller;
The battery information that the temperature signal that the button signal that described entire car controller sends according to described air-conditioning panel, described evaporator temperature sensor collect, described battery management system send controls, to realize air conditioning function described compressor, described PCT temperature booster and described condenser fan according to preset strategy.
10. the control method of the a/c system of pure electric automobile as claimed in claim 9, is characterized in that,
According to described temperature signal, described entire car controller judges whether evaporator temperature is less than preset temperature threshold value, if described evaporator temperature is less than preset temperature threshold value, then and compressor described in entire car controller No starting;
If described entire car controller is greater than or equal to preset temperature threshold value according to from described temperature signal determination evaporator temperature, then described entire car controller generates the first enable command and the tachometer value of described compressor according to described button signal, described temperature signal, described battery information and preset strategy, and by described compressor controller, described first enable command and described tachometer value is sent to described compressor;
Described compressor adjusts the mode of operation of self according to described first enable command and described tachometer value;
The button signal that described entire car controller sends the second enable command by described PTC controller, collect from described first knob and send to described PCT temperature booster from the button signal that described second knob collects;
Described PCT temperature booster is according to described second enable command received, the button signal collected from described first knob and the mode of operation of button signal adjustment self that collects from described second knob.
The control method of the a/c system of 11. pure electric automobiles as claimed in claim 9, it is characterized in that, described condenser and driver for vehicle share radiator fan, and the radiator of described condenser and described driver for vehicle is arranged side by side, wherein,
Described entire car controller, when described compressor is in work shape, is dispelled the heat to described compressor by described radiator fan;
Described entire car controller, after described compressor quits work, controls described radiator fan again to described compressor heat radiation preset time period.
The control method of the a/c system of 12. pure electric automobiles as claimed in claim 9, is characterized in that,
If described entire car controller judges that the time gap of described start/stop of compressor is less than Preset Time, then described in time delay, the rear of Preset Time sends the first enable command to described compressor, starts described compressor to make described compressor according to described first enable command.
The control method of the a/c system of 13. pure electric automobiles as claimed in claim 10, is characterized in that,
If described entire car controller judges that pure electric automobile is in driving pattern, and the battery of described pure electric automobile is maximum can be greater than the first predetermined threshold value by discharge power, and the remaining battery power of electrokinetic cell is greater than or equal to the second predetermined threshold value, then described entire car controller allows air-conditioning enable, and in the process of described air-conditioning work, described entire car controller is also monitored vehicle residue continual mileage, and when monitoring described vehicle residue continual mileage lower than the 3rd predetermined threshold value, extending driving range since closing described air-conditioning by described instrument prompting chaufeur.
The control method of the a/c system of 14. pure electric automobiles as claimed in claim 13, it is characterized in that, in the process of described air-conditioning work, if described entire car controller judge described battery maximum can discharge power lower than the 4th predetermined threshold value and/or described remaining battery power lower than the 5th predetermined threshold value, then described entire car controller closes described air-conditioning.
The control method of the a/c system of 15. pure electric automobiles as claimed in claim 10, is characterized in that,
If described entire car controller judges that pure electric automobile is in charge mode, and the remaining battery power of electrokinetic cell is greater than the 6th predetermined threshold value, then described entire car controller allows air-conditioning enable;
In the process of described air-conditioning work, according to the button signal collected from described first knob, described entire car controller also determines whether described blowing engine is in opening, and when described blowing engine is in opening, and according to the button signal collected from described second knob, the button signal collected from described 3rd button and the mode of operation controlling described air-conditioning from the button signal that described 4th button collects.
The control method of the a/c system of 16. pure electric automobiles as claimed in claim 15, it is characterized in that, in the process of described air-conditioning work, if described entire car controller judges that the remaining battery power of described electrokinetic cell is lower than the 7th predetermined threshold value, then described entire car controller closes described air-conditioning.
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