CN105501157B - A kind of air conditioner of electric vehicle method of supplying power to and system - Google Patents
A kind of air conditioner of electric vehicle method of supplying power to and system Download PDFInfo
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- CN105501157B CN105501157B CN201610045105.8A CN201610045105A CN105501157B CN 105501157 B CN105501157 B CN 105501157B CN 201610045105 A CN201610045105 A CN 201610045105A CN 105501157 B CN105501157 B CN 105501157B
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- conditioning
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
- B60R16/03—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for supply of electrical power to vehicle subsystems or for
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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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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The present invention relates to a kind of electric car High-Voltage Electrical Appliances method of supplying power to and system, and in particular to the method for supplying power to and system of a kind of air-conditioning of electric car under charge mode, this method comprise the following steps：(1) whether detection vehicle is in charged state；(2) if it is, the total negative relay of closure, and detect whether by CAN to receive the unlatching air-conditioning message of air-conditioning low-pressure system；(3) if it is, closure AIR COND RLY Air Conditioner Relay, returns and perform step (1)；Otherwise, AIR COND RLY Air Conditioner Relay is disconnected, returns and performs step (1).By the present invention, solve in the prior art vehicle in charging process, it is impossible to the problem of opening air-conditioning.
Description
Technical field
The present invention relates to a kind of electric car High-Voltage Electrical Appliances method of supplying power to and system, and in particular to a kind of electric car is in charging mould
The method of supplying power to and system of on-board air conditioner under formula.
Background technology
In existing technical scheme, the high voltage electric equipment electric process of electric automobile and the charging process of battery bag are often
All it is the process for mutual exclusion, high voltage electric equipment, such as electric machine controller can be all prohibitted the use of generally during charging, with
Vehicle is avoided to have the operating mode of traveling during charging；And on-board air conditioner, as high voltage electric equipment, its power supply is also to come from
In high voltage supply, if during charging, external environment condition is more severe, and driver has out the need of on-board air conditioner in the car
Ask, then have to pull out charging gun, can be powered for on-board air conditioner, but if driver when there is the demand of driving later,
Because on-board air conditioner is large electricity consumer, substantial amounts of electricity can be consumed, the distance travelled of vehicle certainly will will be influenceed.
If Fig. 1 is electric car high voltage electric device connection diagram in the prior art.It is vehicle-mounted in the schematic diagram shown in Fig. 1
The air-conditioning high-voltage load (i.e. the high-pressure section of on-board air conditioner) of air-conditioning is both connected to the high-voltage load of battery bag with electric machine controller
End, when electric car is in charged state, charge relay, the control end of DCDC relays are in connection status, main positive relay
(also as total positive relay) control end and the control end of preliminary filling relay are off, then charge relay, DCDC after
Electrical work, and electric machine controller does not work with air-conditioning high-voltage load.Therefore, electric car in the charge state, driver without
Method is turned on the aircondition in the car avoids heat or warms oneself.
The content of the invention
The invention provides a kind of air conditioner of electric vehicle method of supplying power to and system, charged with solving vehicle in the prior art
Cheng Zhong, it is impossible to the problem of opening on-board air conditioner.
To achieve the above object, the invention provides following technical scheme：
A kind of air conditioner of electric vehicle method of supplying power to, the described method comprises the following steps：
(1) whether detection vehicle is in charged state；
(2) if it is, the total negative relay of closure, and detect whether by CAN to receive the unlatching of air-conditioning low-pressure system
Air-conditioning message；
(3) if it is, closure AIR COND RLY Air Conditioner Relay, returns and perform step (1)；Otherwise, AIR COND RLY Air Conditioner Relay is disconnected, returns and performs
Step (1)；
Wherein, air conditioner of electric vehicle electric power system, including：Air-conditioning low-pressure system and air-conditioning high-pressure system；Also include：Battery
Bag, controller, charge relay, always bear relay, AIR COND RLY Air Conditioner Relay, be connected to charge relay control end and always negative relay
Between charger；
The charger is connected with the coil-end of the charge relay, the connection for controlling charge relay；
The positive terminal of the battery bag is connected with the first end of the control end of the AIR COND RLY Air Conditioner Relay, the battery bag it is negative
First end extremely with the control end of total negative relay is connected；
The air-conditioning high-pressure system the second end respectively with the control end of total negative relay and the air-conditioning relay
The second end connection of the control end of device；
The controller is connected with the coil-end of the AIR COND RLY Air Conditioner Relay and the coil-end of total negative relay respectively,
For controlling the AIR COND RLY Air Conditioner Relay and the always negative relay；
The controller is connected by CAN with the air-conditioning low-pressure system, for receiving the air-conditioning low-pressure system
Message.
Preferably, in step (3), after closure AIR COND RLY Air Conditioner Relay, methods described also includes：
(4) power parameter is gathered, wherein the power parameter includes：Air conditioning requirements power P 1, charger maximum work output
Rate Pm and battery bag charge requirement power P 2；
(5) whether detection air conditioning requirements power P 1 is more than charger peak power output Pm- battery bag charge requirement power
P2；
(6) if it is, calculating setting power P x, and root according to air conditioning requirements power P 1 and battery bag charge requirement power P 2
Setting coefficient a is calculated according to setting power P x, the operating power of current air-conditioning is limited as a* air conditioning requirements power P 1, return performs step
Suddenly (1)；
(7) otherwise, the operating power of current air-conditioning is set as the air conditioning requirements power P 1, is returned and is performed step (1).
Preferably, it is described specific according to air conditioning requirements power P 1 and the calculating setting power P of battery bag charge requirement power P 2 x
Including：
Set battery bag charge requirement power P 2 described in air conditioning requirements power P 1+ described in power P x=.
Preferably, it is described after setting the operating power of current air-conditioning as the air conditioning requirements power P 1 in step (7)
Method also includes：
Current charger charging power is set as setting power P x.
Preferably, it is described to be specifically included according to setting power P x calculating settings coefficient a：
Set setting power P x described in charger peak power output Pm/ described in coefficient a=.
Preferably, in step (6), calculate after setting power P x and setting coefficient a, methods described also includes：
The charge power of present battery bag is limited as a* battery bag charge requirements power P 2 simultaneously.
Preferably, in step (6), methods described also includes：
Set the output of charger total power, i.e. charger output peak power output Pm.
Preferably, before step (4), methods described also includes：
(8) detect whether to receive the air conditioner refrigerating gear of air-conditioning low-pressure system by CAN or heat gear message；Such as
Fruit is to perform step (4)；Otherwise, step (8) is continued executing with.
A kind of air conditioner of electric vehicle electric power system, including：Air-conditioning low-pressure system and air-conditioning high-pressure system；The system is also wrapped
Include：Battery bag, controller, charge relay, always bear relay, AIR COND RLY Air Conditioner Relay, be connected to charge relay control end with it is total
Charger between negative relay；
The charger is connected with the coil-end of the charge relay, the connection for controlling charge relay；
The positive terminal of the battery bag is connected with the first end of the control end of the AIR COND RLY Air Conditioner Relay, the battery bag it is negative
First end extremely with the control end of total negative relay is connected；
The air-conditioning high-pressure system the second end respectively with the control end of total negative relay and the air-conditioning relay
The second end connection of the control end of device；
The controller is connected with the coil-end of the AIR COND RLY Air Conditioner Relay and the coil-end of total negative relay respectively,
For controlling the AIR COND RLY Air Conditioner Relay and the always negative relay；
The controller is connected by CAN with the air-conditioning low-pressure system, for receiving the air-conditioning low-pressure system
Message.
Preferably, the air-conditioning low-pressure system includes：
Air-conditioning panel and the low-pressure control module electrically connected with the air-conditioning panel；
The low-pressure control module is connected by CAN with the controller, for receiving opening for the air-conditioning panel
OFF signal, and send unlatching air conditioner operation message or air conditioner refrigerating gear to the controller or heat gear message.
The beneficial effects of the present invention are：
Air conditioner of electric vehicle method of supplying power to and system that the present invention is provided, whether entire car controller detection vehicle is in charging shape
State；If it is, the total negative relay of closure, and detect whether by CAN to receive the unlatching air-conditioning of on-board air conditioner low-pressure system
Message；If it is, closure AIR COND RLY Air Conditioner Relay.By the present invention, solve in charging process, it is impossible to open asking for on-board air conditioner
Topic.
Brief description of the drawings
Fig. 1 is electric car high voltage electric device connection diagram in the prior art.
Fig. 2 is the first flow chart of air conditioner of electric vehicle method of supplying power to of the embodiment of the present invention.
Fig. 3 is second of flow chart of air conditioner of electric vehicle method of supplying power to of the embodiment of the present invention.
Fig. 4 is the third flow chart of air conditioner of electric vehicle method of supplying power to of the embodiment of the present invention.
Fig. 5 is the 4th kind of flow chart of air conditioner of electric vehicle method of supplying power to of the embodiment of the present invention.
Fig. 6 is the 5th kind of flow chart of air conditioner of electric vehicle method of supplying power to of the embodiment of the present invention.
Fig. 7 is the connection diagram of charger in air conditioner of electric vehicle electric power system of the embodiment of the present invention.
Fig. 8 is the connection diagram of air conditioner of electric vehicle electric power system of the embodiment of the present invention.
Embodiment
In order that those skilled in the art can be further understood that the feature and technology contents of the present invention, below in conjunction with the accompanying drawings
The embodiment of the present invention is elaborated with embodiment.
For in existing electric vehicle engineering, the problem of can not opening air-conditioning in battery bag charging process, the present invention is implemented
Example provides a kind of air conditioner of electric vehicle method of supplying power to and system, so that vehicle is during charging, driver's energy
It is enough to open air-conditioning into the car.
Fig. 2 is the first flow chart of air conditioner of electric vehicle method of supplying power to of the embodiment of the present invention, is comprised the following steps：
Step 101：Start.
Step 102：Detect whether vehicle is in charged state；If it is, performing step 103；Otherwise, step 106 is performed.
It should be noted that in charging process, onboard charger can give entire car controller one charging wake-up signal, when
Meet after this condition, the logic that onboard charger will be charged between entire car controller (or battery management system) is sentenced
Disconnected, at this time entire car controller (or battery management system) is it is known that vehicle is in charged state.
It should be noted that the embodiment of the present invention is having on the electric automobile of entire car controller, mainly by full-vehicle control
Device realizes control, on the electric automobile without entire car controller, is mainly realized and controlled by battery management system.
Step 103：Closure always negative relay, and detect whether that the unlatching for receiving air-conditioning low-pressure system is empty by CAN
Adjust message；If it is, performing step 104；Otherwise, step 105 is performed.
It should be noted that the relay of existing battery bag internal control high-pressure system mainly has three, preliminary filling relay
Device, always total positive relay, negative relay.The control end of wherein total negative relay and the negative pole of battery bag are connected, for realizing height
Piezoelectricity device (such as, electric machine controller, on-board air conditioner high-pressure system, DC-DC converter, charger etc.) negative pole and battery bag negative pole
Connection or disconnection.
Step 104：AIR COND RLY Air Conditioner Relay is closed, returns and performs step 102.
It should be noted that AIR COND RLY Air Conditioner Relay is the present invention increases to one often to realize independent control on-board air conditioner
Open relay, during Vehicular charging, to realize the control powered to vehicle air conditioning.
Step 105：AIR COND RLY Air Conditioner Relay is disconnected, returns and performs step 102.
Step 106：Terminate.
Air conditioner of electric vehicle method of supplying power to provided in an embodiment of the present invention, if detecting vehicle is in charged state, closure
Always negative relay, if receiving the unlatching air-conditioning message of air-conditioning low-pressure system, closes AIR COND RLY Air Conditioner Relay, otherwise, disconnects air-conditioning
Relay.Pass through the embodiment of the present invention, it is possible to achieve vehicle uses on-board air conditioner in charging process, so that operator or driving
Member can obtain a relatively suitable temperature environment.
Because the startup of on-board air conditioner must is fulfilled for certain operating power, but vehicle first has to examine in charging process
Consider battery bag charge requirement, be this in terms of system configuration, charger peak power output Pm should be approximately equal to charge requirement work(
Rate P2+ air conditioning requirements power P 1, if this condition is unsatisfactory for, needs the operating power of the charge power and air-conditioning to battery bag
Carry out certain proportion to redistribute, embodiment as shown in Figure 3, it is possible to achieve the charge power of battery bag and the work of on-board air conditioner
The rate of doing work is redistributed according to a certain percentage.
Fig. 3 is second of flow chart of air conditioner of electric vehicle method of supplying power to of the embodiment of the present invention, is comprised the following steps：
Step 201：Start.
Step 202：Detect whether vehicle is in charged state；If it is, performing step 203；Otherwise, step 210 is performed.
Step 203：Closure always negative relay, and detect whether that the unlatching for receiving air-conditioning low-pressure system is empty by CAN
Adjust message；If it is, performing step 204；Otherwise, step 211 is performed.
Step 204：AIR COND RLY Air Conditioner Relay is closed, step 205 is performed.
Step 205：Power parameter is gathered, wherein the power parameter includes：Air conditioning requirements power P 1, charger maximum are defeated
Go out power P m and battery bag charge requirement power P 2, perform step 206.
Given it should be noted that air conditioning requirements power P 1 is the mode for employing demarcation, the interior such as in different value
During temperature, on-board air conditioner is opened using different shelves, on-board air conditioner inherently has different demand power P1, these demand powers
P1 can be collected by the communication of on-board air conditioner and entire car controller (or battery management system).
The condition that charger peak power output Pm should be met is that charger peak power output Pm >=battery bag maximum can
Allow charge power+on-board air conditioner corresponding power when (such as 50 degrees Celsius) can be opened reluctantly under maximum temperature environment.Than
Such as, for vehicle-mounted charge, battery inclusion quantity is 72 ampere-hours (Ah), if necessary to being full of within 8 hours, it is desirable to which battery bag is put down
Bulk charge electric current is 9A, and battery is surrounded by maximum can allow the limitation of charging current, such as the maximum allowable charging electricity of battery bag
Flow for 12A (the maximum allowable charging current of battery bag is by different battery bag producers concrete decision), it is further, battery bag is maximum
The charging current of permission multiplies in current voltage value, can obtain the maximum admissible charge power of battery bag；On-board air conditioner is most
Corresponding power when (such as 50 degrees Celsius) can be opened reluctantly under high temperature environment, by refrigeration work consumption and the vehicle-mounted sky of on-board air conditioner
That adjusts heats power decision, such as, the refrigeration work consumption of on-board air conditioner is between 1.5kw~2.5kw, and the power of air-conditioning heating exists
Between 1kw~1.5kw, because the power interval of the cooling and warming of on-board air conditioner is different, it is necessary at least be reserved to air-conditioning
1.5kw charge power, i.e. on-board air conditioner corresponding work(when (such as 50 degrees Celsius) can be opened reluctantly under maximum temperature environment
Rate.
Battery bag charge requirement power P 2, is a calibration value, is specifically the recommendation given according to battery producer, and in electricity
Under pond difference SOC states, different temperatures, the suitable charging current that battery management system is calculated, the charging electricity of different situations
The power that flowmeter is calculated exports demand power, obtained different value along with DCDC.
Step 206：Detect whether air conditioning requirements power P 1 is more than charger peak power output Pm- battery bag charge requirements
Power P 2；If it is, performing step 207；No person, performs step 212.
Step 207：Setting power P x is calculated according to air conditioning requirements power P 1 and battery bag charge requirement power P 2, step is performed
Rapid 208.
Have it should be noted that calculating setting power P x according to air conditioning requirements power P 1 and battery bag charge requirement power P 2
Body includes：Set battery bag charge requirement power P 2 described in air conditioning requirements power P 1+ described in power P x=.
Step 208：Setting coefficient a is calculated according to setting power P x, step 209 is performed.
Specifically included it should be noted that calculating setting coefficient a according to setting power P x：Set and charged described in coefficient a=
Power P x is set described in device peak power output Pm/.Such as, setting coefficient a is more than or equal to 0.8 and is less than or equal to 1.
Step 209：The operating power of current air-conditioning is limited as a* air conditioning requirements power P 1, step 202 is performed.
It should be noted that the operating power for limiting current air-conditioning is mainly limited according to vehicle situation, if air-conditioning is needed
Ask power excessive, then the demand of air-conditioning can only be limited, but be to ensure that vehicle is in charge mode, at this moment, it is possible to will fill
A part of charge power of electrical equipment power output is given to on-board air conditioner and used, but battery bag keeps charged state simultaneously.
Step 210：Terminate.
Step 211：AIR COND RLY Air Conditioner Relay is disconnected, step 202 is performed.
Step 212：The operating power of current air-conditioning is set as the air conditioning requirements power P 1, step 202 is performed.
Air conditioner of electric vehicle method of supplying power to provided in an embodiment of the present invention, if detecting vehicle is in charged state, closure
Always negative relay, if receiving the unlatching air-conditioning message of air-conditioning low-pressure system, closes AIR COND RLY Air Conditioner Relay, so that on-board air conditioner work
Make, when the power of on-board air conditioner demand, which can not be met, to be required, a certain proportion of restriction carried out to the operating power of on-board air conditioner,
So that on-board air conditioner can work to greatest extent.Pass through the embodiment of the present invention, it is possible to achieve vehicle is pacified in charging process
On-board air conditioner is used entirely, so that operator or driver can obtain a relatively suitable temperature environment.
During the work of charger and on-board air conditioner simultaneously, safely and effectively charge, can fill to realize
In electric process, the charge power of battery bag is limited, so that charging process is safe and reliable charging process.If Fig. 4 is the present invention
The third flow chart of embodiment air conditioner of electric vehicle method of supplying power to, comprises the following steps：
Step 301：Start.
Step 302：Detect whether vehicle is in charged state；If it is, performing step 203；Otherwise, step 311 is performed.
Step 303：Closure always negative relay, and detect whether that the unlatching for receiving air-conditioning low-pressure system is empty by CAN
Adjust message；If it is, performing step 304；Otherwise, step 312 is performed.
Step 304：AIR COND RLY Air Conditioner Relay is closed, step 305 is performed.
Step 305：Power parameter is gathered, wherein the power parameter includes：Air conditioning requirements power P 1, charger maximum are defeated
Go out power P m and battery bag charge requirement power P 2, perform step 306.
Step 306：Detect whether air conditioning requirements power P 1 is more than charger peak power output Pm- battery bag charge requirements
Power P 2；If it is, performing step 307；No person, performs step 313.
Step 307：Setting power P x is calculated according to air conditioning requirements power P 1 and battery bag charge requirement power P 2, step is performed
Rapid 308.
Step 308：Setting coefficient a is calculated according to setting power P x, step 309 is performed.
Step 309：The operating power of current air-conditioning is limited as a* air conditioning requirements power P 1, step 310 is performed.
Step 310：The charge power of present battery bag is limited simultaneously as a* battery bag charge requirements power P 2, is returned and is performed
Step 302.
It should be noted that limiting the charge power of present battery bag to work simultaneously in on-board air conditioner, it is ensured that battery
The charging of bag.
Step 311：Terminate.
Step 312：AIR COND RLY Air Conditioner Relay is disconnected, returns and performs step 302.
Step 313：The operating power of current air-conditioning is set as the air conditioning requirements power P 1, step 314 is performed.
Step 314：Current charger charging power is set as setting power P x, returns and performs step 302.
Air conditioner of electric vehicle method of supplying power to provided in an embodiment of the present invention, if detecting vehicle is in charged state, closure
Always negative relay, if receiving the unlatching air-conditioning message of air-conditioning low-pressure system, closes AIR COND RLY Air Conditioner Relay, so that on-board air conditioner work
Make, when the power of on-board air conditioner demand, which can not be met, to be required, a certain proportion of restriction carried out to the operating power of on-board air conditioner,
A certain proportion of restriction is carried out to the charge power of battery bag simultaneously, so that in on-board air conditioner work simultaneously, it is ensured that battery bag
Charging.Pass through the embodiment of the present invention, it is possible to achieve vehicle uses on-board air conditioner safely in charging process, so as to operator or drive
The person of sailing can obtain a relatively suitable temperature environment.
When the demand power of on-board air conditioner is than larger, the peak power output of charger can not fully meet battery bag and car
, it is necessary to set the output of charger total power, i.e., charger is with maximum power output when carrying the common demand of air-conditioning.
Fig. 5 is the 4th kind of flow chart of air conditioner of electric vehicle method of supplying power to of the embodiment of the present invention, is comprised the following steps：
Step 401：Start.
Step 402：Detect whether vehicle is in charged state；If it is, performing step 403；Otherwise, step 412 is performed.
Step 403：Closure always negative relay, and detect whether that the unlatching for receiving air-conditioning low-pressure system is empty by CAN
Adjust message；If it is, performing step 404；Otherwise, step 413 is performed.
Step 404：AIR COND RLY Air Conditioner Relay is closed, step 405 is performed.
Step 405：Power parameter is gathered, wherein the power parameter includes：Air conditioning requirements power P 1, charger maximum are defeated
Go out power P m and battery bag charge requirement power P 2, perform step 406.
Step 406：Detect whether air conditioning requirements power P 1 is more than charger peak power output Pm- battery bag charge requirements
Power P 2；If it is, performing step 407；No person, performs step 414.
Step 407：Setting power P x is calculated according to air conditioning requirements power P 1 and battery bag charge requirement power P 2, step is performed
Rapid 408.
Step 408：Setting coefficient a is calculated according to setting power P x, step 409 is performed.
Step 409：The operating power of current air-conditioning is limited as a* air conditioning requirements power P 1, step 410 is performed.
Step 410：The charge power of present battery bag is limited simultaneously as a* battery bag charge requirements power P 2, performs step
411。
Step 411：The output of charger total power is set, returns and performs step 402.
It should be noted that the total power output of setting charger, i.e. charger output peak power output Pm.
Step 412：Terminate.
Step 413：AIR COND RLY Air Conditioner Relay is disconnected, returns and performs step 402.
Step 414：The operating power of current air-conditioning is set as the air conditioning requirements power P 1, step 415 is performed.
Step 415：Current charger charging power is set as setting power P x, returns and performs step 402.
Air conditioner of electric vehicle method of supplying power to provided in an embodiment of the present invention, if detecting vehicle is in charged state, closure
Always negative relay, if receiving the unlatching air-conditioning message of air-conditioning low-pressure system, closes AIR COND RLY Air Conditioner Relay, so that on-board air conditioner work
Make, when the power of on-board air conditioner demand, which can not be met, to be required, a certain proportion of restriction carried out to the operating power of on-board air conditioner,
A certain proportion of restriction, setting charger total power output, so that in on-board air conditioner are carried out to the charge power of battery bag simultaneously
Work is simultaneously, it is ensured that the safety of the charging of battery bag.Pass through the embodiment of the present invention, it is possible to achieve vehicle safety in charging process
Using on-board air conditioner, so that operator or driver can obtain a relatively suitable temperature environment.
On-board air conditioner work when, if refrigeration or heating needs, then it is necessary to have high voltage supply because refrigeration need according to
Rely compressor, and heating (heating) then needs to rely on ptc heater, compressor and ptc heater are high-pressure work devices, because
This on-board air conditioner once has refrigeration or heating needs, it is necessary to be connected to high tension loop.
Controller before to on-board air conditioner power detection if the operation gear of on-board air conditioner can be detected first, can be more preferable
Realization to the redundancy determination of the power of on-board air conditioner, to reach safe and reliable use on-board air conditioner.Implementation as shown in Figure 6
Example, it is possible to achieve the operation gear to detecting on-board air conditioner before on-board air conditioner power detection, with the safer vehicle-mounted sky of use
Adjust.
Fig. 6 is the 5th flow chart of air conditioner of electric vehicle method of supplying power to of the embodiment of the present invention, is comprised the following steps：
Step 501：Start.
Step 502：Detect whether vehicle is in charged state；If it is, performing step 503；Otherwise, step 513 is performed.
Step 503：Closure always negative relay, and detect whether that the unlatching for receiving air-conditioning low-pressure system is empty by CAN
Adjust message；If it is, performing step 504；Otherwise, step 514 is performed.
Step 504：AIR COND RLY Air Conditioner Relay is closed, step 505 is performed.
Step 505：Detect whether to receive the air conditioner refrigerating gear of air-conditioning low-pressure system by CAN or heat gear report
Text；If it is, performing step 506；Otherwise, perform to return and perform step 505.
It should be noted that air conditioner refrigerating shelves power bracket be 1.5~2.5kw, and the power of air-conditioning heating 1kw~
1.5kw, the judgement that entire car controller (or battery management system) passes through the air-conditioning gear to air-conditioning low-pressure system, it is possible to achieve
The redundancy determination gathered in step 506 to power parameter, to ensure security of the on-board air conditioner after unlatching.
Step 506：Power parameter is gathered, wherein the power parameter includes：Air conditioning requirements power P 1, charger maximum are defeated
Go out power P m and battery bag charge requirement power P 2, perform step 507.
Step 507：Detect whether air conditioning requirements power P 1 is more than charger peak power output Pm- battery bag charge requirements
Power P 2；If it is, performing step 508；No person, performs step 515.
Step 508：Setting power P x is calculated according to air conditioning requirements power P 1 and battery bag charge requirement power P 2, step is performed
Rapid 509.
Step 509：Setting coefficient a is calculated according to setting power P x, step 510 is performed.
Step 510：The operating power of current air-conditioning is limited as a* air conditioning requirements power P 1, step 410 is performed.
Step 511：The charge power of present battery bag is limited simultaneously as a* battery bag charge requirements power P 2, performs step
512。
Step 512：The output of charger total power is set, returns and performs step 402.
Step 513：Terminate.
Step 514：AIR COND RLY Air Conditioner Relay is disconnected, returns and performs step 402.
Step 515：The operating power of current air-conditioning is set as the air conditioning requirements power P 1, step 516 is performed.
Step 516：Current charger charging power is set as setting power P x, returns and performs step 502.
In summary, air conditioner of electric vehicle method of supplying power to provided in an embodiment of the present invention, if detecting vehicle is in charging
State, closure always bears relay, if receiving the unlatching air-conditioning message of air-conditioning low-pressure system, closes AIR COND RLY Air Conditioner Relay, so that
On-board air conditioner works, and after on-board air conditioner work, the operation gear of on-board air conditioner is detected, with preferably to the work work(of on-board air conditioner
Rate is configured.When the power of on-board air conditioner demand, which can not be met, to be required, the operating power of on-board air conditioner is necessarily compared
The restriction of example, while carrying out a certain proportion of restriction to the charge power of battery bag, setting charger total power is exported, so that
On-board air conditioner works simultaneously, it is ensured that the safety of the charging of battery bag.Pass through the embodiment of the present invention, it is possible to achieve vehicle was charging
On-board air conditioner is used in journey safely, so that operator or driver can obtain a relatively suitable temperature environment.
Correspondingly, the embodiment of the present invention additionally provides a kind of air conditioner of electric vehicle electric power system, including air-conditioning low-pressure system with
Air-conditioning high-pressure system；The system also includes：Battery bag, controller, always charge relay, negative relay, AIR COND RLY Air Conditioner Relay, company
It is connected on the charger between charge relay control end and total negative relay；The coil of the charger and the charge relay
End connection, the connection for controlling charge relay；The positive terminal of the battery bag and the control end of the AIR COND RLY Air Conditioner Relay
First end is connected, and the negative pole end of the battery bag is connected with the first end of the control end of total negative relay；The air-conditioning is high
Pressure system respectively with the second end of the control end of total negative relay and the second end of the control end of the AIR COND RLY Air Conditioner Relay
Connection；The controller is connected with the coil-end of the AIR COND RLY Air Conditioner Relay and the coil-end of total negative relay respectively, is used
In the control AIR COND RLY Air Conditioner Relay and the always negative relay；The controller passes through CAN and the air-conditioning low-pressure system
Connection, the message for receiving the air-conditioning low-pressure system.
It should be noted that it can also be battery management system that the controller in the embodiment of the present invention, which can be entire car controller,
System；Having on the electric automobile of entire car controller, controller is entire car controller；In the electric automobile without entire car controller
On, controller is battery management system.
It should be noted that charge relay in the embodiment of the present invention, always to bear relay, AIR COND RLY Air Conditioner Relay can be normal
Open relay.
If Fig. 7 is the connection diagram of charger in air conditioner of electric vehicle electric power system of the embodiment of the present invention, in the figure 7, fill
Electrical equipment is connected between charge relay control end and main negative Control end, for controlling charge relay to realize battery
The charging of bag；Charger is also connected (not shown) by CAN with controller, the message for receiving controller, with reality
The setting of existing charger operation power.It should be noted that in the embodiment of the present invention, charger can be onboard charger.
In being the connection diagram of air conditioner of electric vehicle electric power system of the embodiment of the present invention, Fig. 8 such as Fig. 8, on-board air conditioner includes：
Air-conditioning low-pressure system and air-conditioning high-pressure system, and air-conditioning low-pressure system includes：Air-conditioning panel and it is electrically connected with the air-conditioning panel
The low-pressure control module connect；The low-pressure control module is connected by CAN with controller, for receiving the air-conditioning panel
Switching signal, and sent to the controller and open air conditioner operation message or air conditioner refrigerating gear or heat gear message.
It should be noted that the switching signal for the air-conditioning panel that low-pressure control module is received includes：Open air conditioner operation
Switching signal, air conditioner refrigerating gear on-off signal and air-conditioning heating gear on-off signal, what low-pressure control module was received opens
OFF signal is converted into CAN message, that is, opens air conditioner operation message or air conditioner refrigerating gear or heat gear message and be sent to
Entire car controller, entire car controller performs closure AIR COND RLY Air Conditioner Relay according to the message received or sets current air-conditioning work power
Or setting battery bag charge power or the current charger charging power of setting.
In fig. 8, air-conditioning high-pressure system includes：Compressor and ptc heater；Air conditioner refrigerating or system (plus) heat it is necessary to have
High voltage supply, needs to rely on compressor during refrigeration, and heating then needs to rely in ptc heater, therefore the embodiment of the present invention, must
High tension loop need be connected to.
Specifically, in the present embodiment, have to meet certain startup power because on-board air conditioner starts, therefore, being
Unite in terms of matching, the general maximum allowable charge power of battery bag should be approximately equal to charger maximum charge power P m, but in this programme
In, when system electrical is matched, it is necessary to there is charger maximum charge power P m to be equal to the maximum allowable charging work(of battery bag
Rate+air-conditioning reluctantly can startup power, after only meeting such a condition, under the conditions of sheet, air-conditioning can only work reluctantly
Work gets up, and once worked together, and the operating power and battery bag charge requirement power of air-conditioning have just carried out a certain proportion of
It is assigned with.First, it is determined that whether air conditioning requirements power P 1 is more than charger peak power output Pm- battery bag charge requirement power
P2；If it is, setting power P x is calculated, setting power P x=air conditioning requirements power P 1 and battery bag charge requirement power P 2；So
Afterwards, setting coefficient a is calculated according to setting power P x, sets and set work(described in charger peak power output Pm/ described in coefficient a=
Rate Px；The operating power of current air-conditioning is limited as a* air conditioning requirements power P 1, at the same limit the charge power of present battery bag as
A* battery bag charge requirements power P 2.Specifically, such as, setting coefficient a is more than or equal to 0.8 and is less than or equal to 1.
Specifically, for vehicle-mounted charge, battery inclusion quantity is 72 ampere-hours (Ah), if necessary to be full of within 8 hours, it is desirable to
The mean charging current of battery bag is 9A, and battery be surrounded by it is maximum can allow the limitation of charging current, such as battery bag maximum permits
Perhaps charging current is 12A (this value can be by different battery bag producers concrete decision), according to the maximum allowable charging electricity of battery bag
Stream can obtain maximum allowable charge power with current voltage value product, and the refrigeration work consumption of on-board air conditioner about 1.5kw~
2.5kw, and the power of air-conditioning heating is in 1kw~1.5kw, according to current total voltage calculation formula P=UI, to the defeated of charger
Go out the charge requirement power that power must be charge power+on-board air conditioner of battery bag.Due to the power of the cooling and warming of air-conditioning
It is interval different, then the charge power of a 1.5kw is at least reserved to air-conditioning, also just say the power of charger except meeting
Outside the maximum allowable charge power of battery bag, it is necessary to meet the minimum startup power 1.5kw of air-conditioning.
Air conditioner of electric vehicle electric power system provided in an embodiment of the present invention, on-board air conditioner is connected by AIR COND RLY Air Conditioner Relay and battery bag
Connect, so that on-board air conditioner has relative independentability relative to the connection side face of electric machine controller, so as to improve in the prior art
On-board air conditioner can not be independently-powered situation；Entire car controller (or battery management system) also can be in charging process, according to people
The operation of machine interface, control AIR COND RLY Air Conditioner Relay closure or disconnection, so as to solve in charging process, on-board air conditioner can not work
Situation.
In summary, air conditioner of electric vehicle method of supplying power to provided in an embodiment of the present invention and system, on-board air conditioner pass through air-conditioning
Relay is connected with battery bag, so that entire car controller (or battery management system) can be in charging process, according to man-machine interface
Operation, control closure or the disconnection of AIR COND RLY Air Conditioner Relay, and the situation of the air conditioning requirements power according to on-board air conditioner, to vehicle-mounted sky
Air-conditioning work power, battery bag charge power, charge power of charger of tune etc. are configured, with battery bag charging process
In, more safe and reliable operation on-board air conditioner.
The embodiment of the present invention is described in detail above, embodiment used herein is carried out to the present invention
Illustrate, the explanation of above example is only intended to help to understand system and method for the invention；Simultaneously for the one of this area
As technical staff, according to the present invention thought, will change in specific embodiments and applications, to sum up institute
State, this specification content should not be construed as limiting the invention.
Claims (10)
1. a kind of air conditioner of electric vehicle method of supplying power to, it is characterised in that the described method comprises the following steps：
(1) whether detection vehicle is in charged state；
(2) if it is, the total negative relay of closure, and detect whether by CAN to receive the unlatching air-conditioning of air-conditioning low-pressure system
Message；
(3) if it is, closure AIR COND RLY Air Conditioner Relay, returns and perform step (1)；Otherwise, AIR COND RLY Air Conditioner Relay is disconnected, returns and performs step
(1)；
Wherein, air conditioner of electric vehicle electric power system, including：Air-conditioning low-pressure system and air-conditioning high-pressure system；Also include：Battery bag, control
Device processed, charge relay, always bear relay, AIR COND RLY Air Conditioner Relay, be connected between charge relay control end and always negative relay
Charger；
The charger is connected with the coil-end of the charge relay, the connection for controlling charge relay；
The positive terminal of the battery bag is connected with the first end of the control end of the AIR COND RLY Air Conditioner Relay, the negative pole end of the battery bag
It is connected with the first end of the control end of total negative relay；
The air-conditioning high-pressure system respectively with the second end of the control end of total negative relay and the AIR COND RLY Air Conditioner Relay
The second end connection of control end；
The controller is connected with the coil-end of the AIR COND RLY Air Conditioner Relay and the coil-end of total negative relay respectively, is used for
Control the AIR COND RLY Air Conditioner Relay and the always negative relay；
The controller is connected by CAN with the air-conditioning low-pressure system, the report for receiving the air-conditioning low-pressure system
Text.
2. air conditioner of electric vehicle method of supplying power to according to claim 1, it is characterised in that in step (3), closure air-conditioning after
After electrical equipment, methods described also includes：
(4) power parameter is gathered, wherein the power parameter includes：Air conditioning requirements power P 1, charger peak power output Pm,
And battery bag charge requirement power P 2；
(5) whether detection air conditioning requirements power P 1 is more than charger peak power output Pm- battery bag charge requirements power P 2；
(6) if it is, calculating setting power P x according to air conditioning requirements power P 1 and battery bag charge requirement power P 2, and according to setting
Determine power P x and calculate setting coefficient a, limit the operating power of current air-conditioning as a* air conditioning requirements power P 1, return and perform step
(1)；
(7) otherwise, the operating power of current air-conditioning is set as the air conditioning requirements power P 1, is returned and is performed step (1).
3. air conditioner of electric vehicle method of supplying power to according to claim 2, it is characterised in that described according to air conditioning requirements power P 1
Setting power P x is calculated with battery bag charge requirement power P 2 to specifically include：
Set battery bag charge requirement power P 2 described in air conditioning requirements power P 1+ described in power P x=.
4. air conditioner of electric vehicle method of supplying power to according to claim 3, it is characterised in that in step (7), setting is current empty
The operating power of tune is after the air conditioning requirements power P 1, methods described also includes：
Current charger charging power is set as setting power P x.
5. air conditioner of electric vehicle method of supplying power to according to claim 4, it is characterised in that described to be calculated according to setting power P x
Setting coefficient a is specifically included：
Set setting power P x described in charger peak power output Pm/ described in coefficient a=.
6. air conditioner of electric vehicle method of supplying power to according to claim 5, it is characterised in that in step (6), calculates setting work(
After rate Px and setting coefficient a, methods described also includes：
The charge power of present battery bag is limited as a* battery bag charge requirements power P 2 simultaneously.
7. air conditioner of electric vehicle method of supplying power to according to claim 6, it is characterised in that in step (6), methods described is also
Including：
Set the output of charger total power, i.e. charger output peak power output Pm.
8. the air conditioner of electric vehicle method of supplying power to according to any one of claim 2 to 7, it is characterised in that step (4) it
Before, methods described also includes：
(8) detect whether to receive the air conditioner refrigerating gear of air-conditioning low-pressure system by CAN or heat gear message；If
It is to perform step (4)；Otherwise, step (8) is continued executing with.
9. a kind of air conditioner of electric vehicle electric power system, including：Air-conditioning low-pressure system and air-conditioning high-pressure system；Characterized in that, described
System also includes：Battery bag, controller, charge relay, always bear relay, AIR COND RLY Air Conditioner Relay, be connected to charge relay control
Charger between end processed and total negative relay；
The charger is connected with the coil-end of the charge relay, the connection for controlling charge relay；
The positive terminal of the battery bag is connected with the first end of the control end of the AIR COND RLY Air Conditioner Relay, the negative pole end of the battery bag
It is connected with the first end of the control end of total negative relay；
The air-conditioning high-pressure system respectively with the second end of the control end of total negative relay and the AIR COND RLY Air Conditioner Relay
The second end connection of control end；
The controller is connected with the coil-end of the AIR COND RLY Air Conditioner Relay and the coil-end of total negative relay respectively, is used for
Control the AIR COND RLY Air Conditioner Relay and the always negative relay；
The controller is connected by CAN with the air-conditioning low-pressure system, the report for receiving the air-conditioning low-pressure system
Text.
10. air conditioner of electric vehicle electric power system according to claim 9, it is characterised in that the air-conditioning low-pressure system includes：
Air-conditioning panel and the low-pressure control module electrically connected with the air-conditioning panel；
The low-pressure control module is connected by CAN with the controller, and the switch for receiving the air-conditioning panel is believed
Number, and send unlatching air conditioner operation message or air conditioner refrigerating gear to the controller or heat gear message.
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| CN201610045105.8A CN105501157B (en) | 2016-01-22 | 2016-01-22 | A kind of air conditioner of electric vehicle method of supplying power to and system |
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| CN106541802B (en) * | 2016-10-31 | 2019-10-15 | 北京现代汽车有限公司 | Air conditioning control method and device for pure electric automobile |
| CN106945484B (en) * | 2017-05-16 | 2020-04-21 | 重庆长安新能源汽车科技有限公司 | Control method and system for air conditioner in electric vehicle and electric vehicle |
| CN109677230B (en) * | 2017-10-19 | 2022-01-28 | 郑州宇通客车股份有限公司 | New energy automobile reservation control method and system |
| JP7252808B2 (en) * | 2019-03-27 | 2023-04-05 | 株式会社Subaru | power system |
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| JP4353283B2 (en) * | 2007-06-18 | 2009-10-28 | トヨタ自動車株式会社 | Vehicle air conditioning control device |
| CN101623998A (en) * | 2009-08-05 | 2010-01-13 | 奇瑞汽车股份有限公司 | Electric vehicle air conditioning system and control method therefor |
| CN101852476B (en) * | 2010-04-30 | 2012-11-14 | 奇瑞汽车股份有限公司 | Pure electric automobile air conditioning control system and control method thereof |
| CN103171398A (en) * | 2011-12-26 | 2013-06-26 | 上海汽车集团股份有限公司 | Control method and controlling device of vehicle air conditioner |
| CN104191930B (en) * | 2014-08-04 | 2017-01-25 | 惠州华阳通用电子有限公司 | Control method and system of automatic air conditioner of automobile |
| CN104228589A (en) * | 2014-09-05 | 2014-12-24 | 北京新能源汽车股份有限公司 | High-grade safety device based on double CPUs (Central Processing Unit) of pure electric vehicle |
| CN204452095U (en) * | 2015-02-16 | 2015-07-08 | 安徽江淮汽车股份有限公司 | Electric automobile high-voltage electric power system |
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