CN109693506A - A kind of electric car and its vehicle interior temperature adjusting method, system - Google Patents
A kind of electric car and its vehicle interior temperature adjusting method, system Download PDFInfo
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- CN109693506A CN109693506A CN201710986782.4A CN201710986782A CN109693506A CN 109693506 A CN109693506 A CN 109693506A CN 201710986782 A CN201710986782 A CN 201710986782A CN 109693506 A CN109693506 A CN 109693506A
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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
Abstract
The present invention relates to a kind of electric car and its vehicle interior temperature adjusting methods, system, when charging the battery, according to remaining battery charge capacity situation, in conjunction with the time difference apart from the time of using cars, it calculates and distributes the charging current to charge the battery within this time difference, reach battery while charging, while air-conditioning preheating or refrigeration, finally when reaching the time of using cars of car owner's setting, charging complete, and complete the preheating or pre-cooling of air-conditioning, the adjusting that environment inside car temperature is completed before user is using automobile improves the comfort that electric car uses.
Description
Technical field
The invention belongs to electric car thermal management technology fields, and in particular to a kind of electric car and its vehicle interior temperature are adjusted
Method, system.
Background technique
Automobile is the important vehicles and key pillars of the national economy industry of modern society.With China's economy
Sustained and rapid development and Development of China's Urbanization accelerate to promote, and longer one section of period automobile demand amount will keep growth from now on,
Thus bring energy shortage and problem of environmental pollution will be protruded more.Accelerate to cultivate and develop energy-saving automobile and new energy vapour
Vehicle is both the urgent task that the energy and environmental pressure is effectively relieved, and pushes automobile industry sustainable development.With State Council
Publication of the general office to " energy conservation and new-energy automobile industrial development planning (2012-the year two thousand twenty) ", each vehicle factor one after another will be new
Important component of the exploitation of energy automobile as our company's business, and pay close attention.New energy industry relies on itself
Advantage, along with national the ministries and commissions subsidy and preferential policy new for new-energy automobile, new-energy automobile has been achieved for huge
Development.
The thermal management technology of electric car, for vehicle and electrokinetic cell system rationally using most important, vehicle
Thermal management technology mainly creates suitable environment temperature to passenger, improves the comfort of people, enhance the competitiveness of product.
The thermal management technology of battery system, the main heating realized to battery system and heat insulation function ensure battery work reasonable
Temperature range plays the charging and discharging capabilities of battery to greatest extent, improves the utilization efficiency of battery, extends battery life.Heat pipe
It manages device and whether control method is effective, be directly related to the normal operation of vehicle, vehicle power consumption height relaxes with passenger
Appropriateness, also will affect service efficiency and the service life of vehicle mounted dynamic battery system, and therefore, thermal management technology is electric car design
Key points and difficulties.
The heating management of electric vehicle includes two parts, and first, when vehicle driving, when the temperature is low, to keep cabin
Environment temperature is suitable for ensureing the comfort of passenger, needing to open warming by air conditioner；Second, when vehicle driving, work as power battery
When temperature is too low, for the working efficiency for improving battery, extends battery life, need to open heating film, heated to battery system.With
Upper two kinds of situation heat energies source is to come from vehicle mounted dynamic battery, therefore when opening heating, can accelerate power battery
Energy consumption increases vehicle power consumption, shortens vehicle continual mileage.Above-mentioned computer heating control mode is the ability when vehicle is started operation
Start, environment is big by bus, needs heating time longer, experiences poor for passenger, comfort is bad；In addition, for electricity
For cell system heating, using heating film, temperature rise needs certain time that it is suitable cannot to ensure that battery is in when heating does not complete
Working environment, will limit the charging and discharging capabilities of battery system, shorten battery life.
Publication No. be 106394168, it is entitled " it is a kind of can start by set date electric automobile air conditioner control system and controlling party
Method " disclose it is a kind of can start by set date air conditioner control strategy, the disadvantage of this method is that, this method must be at automobile
Air-conditioning system could be started when charged state, and in the prior art, the charging time of electric car is often no more than six small
When, After Hours give automobile charging in car owner, it is fully charged after charger have a power failure automatically, and automobile fully charged time only has morning two
Three is in charged state one is automobile and user sets accordingly, there exist either way will cause air-conditioning to open
It's not time yet, another kind be user's setting time to but automobile has been in non-charged state, therefore, the control method
It can not realize before user gos out, complete the preheating or pre-cooling of air-conditioning, the tune of in-vehicle air is completed before user is using automobile
Section improves the comfort that electric car uses.
Summary of the invention
It is existing for solving the object of the present invention is to provide a kind of electric car and its vehicle interior temperature adjusting method, system
Technology can not realize the problem of temperature intelligent is adjusted in automobile before user gos out.
In order to solve the above technical problems, the present invention proposes a kind of electric car car temperature control method, including following solution
Certainly scheme:
Method scheme one, includes the following steps:
1) in battery charging process, when battery charges to setting state-of-charge, according to the charge capacity of remaining battery, with
And distance sets the time difference of time of using cars at this time, the charging current of the battery within the time difference is calculated, according to the charging
Current versus cell charging, corresponds to the setting time of using cars at the time of battery capacity is full of；
2) within the time difference in battery charging process, whether detection environment inside car temperature reaches the temperature of air-conditioning unlatching
Degree opens air-conditioning if reaching.
Method scheme two, on the basis of method scheme one, after air-conditioning is opened, controlling total charging current is the battery
Charging current and air-conditioning open after electric current and.
Method scheme three, on the basis of method scheme one, the vehicle interior temperature reaches the temperature of air-conditioning unlatching are as follows: interior
Temperature is greater than the second set temperature less than the first set temperature or vehicle interior temperature；
When vehicle interior temperature is less than the first set temperature, the heating mode of air-conditioning is opened；It is set when vehicle interior temperature is greater than second
When determining temperature, the refrigeration mode of air-conditioning is opened.
Method scheme four before battery charging, calculates the battery fully charged time on the basis of method scheme one
T1, and apart from the time difference T2 of setting time of using cars, when meeting T2-T1 > △ t, and when △ t >=0, according to step 1) and step
2) vehicle interior temperature is adjusted.
Method scheme five, when meeting T2-T1 > △ t, behind t >=0 △, is opened heating film and is given on the basis of method scheme four
Battery heating adjusts vehicle interior temperature according to step 1) and step 2) when battery temperature reaches third set temperature.
In order to solve the above technical problems, the present invention also proposes a kind of electric car car humidity control system, including following
Solution:
System schema one, including electric quantity acquisition unit and detection control unit, wherein electric quantity acquisition unit is used in battery
In charging process, when battery charges to setting state-of-charge, according to the charge capacity of remaining battery；
Detection control unit is used for the charge capacity according to remaining battery, and the time of distance setting time of using cars at this time
Difference calculates the charging current of the battery within the time difference, is charged according to the charging current to battery, what battery capacity was full of
Moment corresponds to the setting time of using cars；Within the time difference in battery charging process, whether detection environment inside car temperature
The temperature for reaching air-conditioning unlatching opens air-conditioning if reaching.
System schema two, on the basis of system schema one, the electric quantity acquisition unit is battery management system, the inspection
Surveying control unit includes battery management system or entire car controller, is calculated by battery management system or entire car controller described
The charging current of battery in time difference.
System schema three is calculated electric within the time difference on the basis of system schema two by battery management system
When the charging current in pond, the detection control unit further includes air-conditioner controller, and air-conditioner controller communicates to connect battery management system
System, or battery management system is communicated to connect by entire car controller；Battery management system directly issues or passes through full-vehicle control
Device, which issues air-conditioning unlatching, to be allowed to instruct to air-conditioner controller, and after air-conditioner controller reception air-conditioning unlatching allows instruction, detection is interior
Whether environment temperature reaches the temperature of air-conditioning unlatching, if reaching, opens air-conditioning.
System schema four, on the basis of system schema one, after air-conditioning is opened, controlling total charging current is the battery
Charging current and air-conditioning open after electric current and.
System schema five, on the basis of system schema one, the environment inside car temperature reaches the temperature of air-conditioning unlatching are as follows:
Environment inside car temperature is greater than the second set temperature less than the first set temperature or environment inside car temperature；
Air-conditioner controller is also used to open the heating mode of air-conditioning when environment inside car temperature is less than the first set temperature；
When environment inside car temperature is greater than the second set temperature, the refrigeration mode of air-conditioning is opened.
System schema six further includes the car-mounted terminal for communicating to connect battery management system on the basis of system schema one,
The time of using cars is set for receiving, and the setting time of using cars is sent to detection control unit.
System schema seven further includes the handheld terminal for being wirelessly connected the car-mounted terminal on the basis of system schema six,
For transmitting the setting time of using cars to car-mounted terminal.
System schema eight, on the basis of system schema one, the detection control unit is also used to, and charges it in battery
Before, the fully charged time T1 of battery is calculated, and apart from the time difference T2 of setting time of using cars, when meeting T2-T1 > △ t, and △
When t >=0, meet the condition that this battery charging process carries out air-conditioning unlatching, otherwise this battery charging process is not turned on air-conditioning.
System schema nine further includes opening heating film to battery before battery charging on the basis of system schema one
Heating, makes battery temperature reach third set temperature.
In order to solve the above technical problems, the present invention also proposes a kind of electric car, including following solution:
Automobile scheme one, including interior temperature control system, interior temperature control system include electric quantity acquisition unit and inspection
Survey control unit, wherein electric quantity acquisition unit is used in battery charging process, when battery charges to setting state-of-charge, root
According to the charge capacity of remaining battery；
Detection control unit is used for the charge capacity according to remaining battery, and the time of distance setting time of using cars at this time
Difference calculates the charging current of the battery within the time difference, is charged according to the charging current to battery, what battery capacity was full of
Moment corresponds to the setting time of using cars；Within the time difference in battery charging process, whether detection environment inside car temperature
The temperature for reaching air-conditioning unlatching opens air-conditioning if reaching.
Automobile scheme two, on the basis of automobile scheme one, the electric quantity acquisition unit is battery management system, the inspection
Surveying control unit includes battery management system or entire car controller, is calculated by battery management system or entire car controller described
The charging current of battery in time difference.
Automobile scheme three is calculated electric within the time difference on the basis of automobile scheme two by battery management system
When the charging current in pond, the detection control unit further includes air-conditioner controller, and air-conditioner controller communicates to connect battery management system
System, or battery management system is communicated to connect by entire car controller；Battery management system directly issues or passes through full-vehicle control
Device, which issues air-conditioning unlatching, to be allowed to instruct to air-conditioner controller, and after air-conditioner controller reception air-conditioning unlatching allows instruction, detection is interior
Whether environment temperature reaches the temperature of air-conditioning unlatching, if reaching, opens air-conditioning.
Automobile scheme four, on the basis of automobile scheme one, after air-conditioning is opened, controlling total charging current is the battery
Charging current and air-conditioning open after electric current and.
Automobile scheme five, on the basis of automobile scheme one, the environment inside car temperature reaches the temperature of air-conditioning unlatching are as follows:
Environment inside car temperature is greater than the second set temperature less than the first set temperature or environment inside car temperature；
Air-conditioner controller is also used to open the heating mode of air-conditioning when environment inside car temperature is less than the first set temperature；
When environment inside car temperature is greater than the second set temperature, the refrigeration mode of air-conditioning is opened.
Automobile scheme six further includes the car-mounted terminal for communicating to connect battery management system on the basis of automobile scheme one,
The time of using cars is set for receiving, and the setting time of using cars is sent to detection control unit.
Automobile scheme seven further includes the handheld terminal for being wirelessly connected the car-mounted terminal on the basis of automobile scheme six,
For transmitting the setting time of using cars to car-mounted terminal.
Automobile scheme eight, on the basis of automobile scheme one, the detection control unit is also used to, and charges it in battery
Before, the fully charged time T1 of battery is calculated, and apart from the time difference T2 of setting time of using cars, when meeting T2-T1 > △ t, and △
When t >=0, meet the condition that this battery charging process carries out air-conditioning unlatching, otherwise this battery charging process is not turned on air-conditioning.
Automobile scheme nine further includes opening heating film to battery before battery charging on the basis of automobile scheme one
Heating, makes battery temperature reach third set temperature.
The beneficial effects of the present invention are:
The present invention is when charging the battery, according to remaining battery charge capacity situation, in conjunction with the time apart from the time of using cars
Difference calculates and distributes the charging current to charge the battery within this time difference, reach battery while charging, while air-conditioning preheating or system
It is cold, finally when reaching the time of using cars of car owner's setting, charging complete, and the preheating or pre-cooling of air-conditioning are completed, it is used in user
The adjusting that environment inside car temperature is completed before automobile improves the comfort that electric car uses.
Low temperature environment in winter in this charging process, can be realized the preheating and battery thermal function of vehicle, improve whole
The heating efficiency of vehicle reduces vehicle power consumption, improves battery system efficiency for charge-discharge, extends battery life, extends in vehicle driving
Journey.
The present invention efficiently uses air-conditioner controller, battery management system, entire car controller and power battery, and automobile is existing
Device be combined together, complete vehicle preheating or pre-cooling and battery heat insulation function, effective use vehicle resource devices it is whole
It closes, avoids newly-increased fuel heater, save resource, reduce cost.
In addition, present aspect, which only when battery charges to certain state-of-charge, just sends air-conditioning unlatching, to be allowed to instruct, guarantee
While battery can be on time fully charged, the unlatching of air-conditioning is effectively controlled.
Before air-conditioning is opened, total charging current of battery management system control is the charging current of battery；And after air-conditioning is opened,
Battery management system control adjustment request total charging current, be battery charging current and air-conditioning open after electric current and,
Avoid request electric current too small, battery cannot be full of, after always filling charging current adjustment, it is ensured that be carried out while battery is fully charged empty
Adjust starting control.
Battery management system is only greater than in the time difference according to the time difference of the setting time of using cars inputted apart from car owner
When battery charge time is regular hour nargin, it can just meet the condition that this battery charging process carries out air-conditioning unlatching, it is excellent
First ensure that battery is full of, when avoiding heating, battery cannot be full of.
After air-conditioning opens permission instruction issuing, air-conditioner controller opens and closes mould according to environment temperature adjust automatically
Formula avoids the unnecessary waste of energy.
The present invention receives the setting time of using cars by car-mounted terminal, can be by hand-held remote controller or cell phone application to vehicle-mounted
The terminal input setting time of using cars, the time of departure can be issued at any time, is conveniently adjusted.
Detailed description of the invention
Fig. 1 is a kind of electric car car humidity control system schematic diagram；
Fig. 2 is a kind of electric car car temperature control method flow chart.
Specific embodiment
A specific embodiment of the invention is further described with reference to the accompanying drawing.
Embodiment one:
The present invention proposes a kind of electric car car temperature control method, includes the following steps:
In battery charging process, and when battery charges to setting state-of-charge, according to the charge capacity of remaining battery, with
And distance sets the time difference of time of using cars at this time, calculates the charging current of the battery within the time difference, and according to charging current pair
Battery charging is the setting time of using cars at the time of battery capacity is full of.
Within the above-mentioned time difference in battery charging process, whether detection environment inside car temperature reaches the temperature of air-conditioning unlatching,
If reaching, open air-conditioning, reach battery while charging, while air-conditioning preheating or refrigeration, finally reach car owner setting time of using cars
When, charging complete, and the preheating or pre-cooling of air-conditioning are completed, the adjusting of environment inside car temperature is completed before user is using automobile, is mentioned
The comfort that high electric car uses.
Low temperature environment in winter in this charging process, can be realized the preheating and battery thermal function of vehicle, improve whole
The heating efficiency of vehicle reduces vehicle power consumption, improves battery system efficiency for charge-discharge, extends battery life, extends in vehicle driving
Journey.Also, in winter when low temperature environment, environment inside car temperature reaches the temperature of air-conditioning unlatching, refers to that environment inside car temperature is less than
First set temperature opens the heating mode of air-conditioning when environment inside car temperature is less than the first set temperature；Opposite, in the summer
When season hot environment, environment inside car temperature reaches the temperature of air-conditioning unlatching, refers to that environment inside car temperature is greater than the second set temperature,
When environment inside car temperature is greater than the second set temperature, the refrigeration mode of air-conditioning is opened.
Corresponding with upper temperature control method, the present invention proposes a kind of electric car with interior temperature control system,
The interior temperature control system includes electric quantity acquisition unit and detection control unit, wherein electric quantity acquisition unit is used in battery
In charging process, when battery charges to setting state-of-charge, according to the charge capacity of remaining battery.
Detection control unit is used for the charge capacity according to remaining battery, and the time of distance setting time of using cars at this time
Difference calculates the charging current of the battery within the time difference, is charged according to charging current to battery, corresponding at the time of battery capacity is full of
To set the time of using cars；Within the time difference in battery charging process, whether detection environment inside car temperature reaches air-conditioning unlatching
Temperature, if reaching, open air-conditioning.
In order to save cost, the present invention constitutes interior temperature control system using the existing apparatus in automobile, specifically, on
Stating electric quantity acquisition unit is battery management system, and detection control unit includes battery management system or entire car controller, Ke Yitong
The charging current that battery management system calculates the battery within the time difference is crossed, also can choose through entire car controller and count
It calculates.
When being calculated by battery management system, above-mentioned detection control unit further includes the air-conditioner controller in automobile, air-conditioning
Controller communicates to connect battery management system using CAN network, or communicates to connect battery management system by entire car controller,
And directly issued by battery management system or by entire car controller issue air-conditioning unlatching allow instruct to air-conditioner controller, air-conditioning
After controller reception air-conditioning unlatching allows instruction, the temperature whether detection environment inside car temperature reaches air-conditioning unlatching is opened if reaching
Open air-conditioning.
The present invention efficiently uses air-conditioner controller, battery management system, entire car controller, and the existing device of automobile is combined
Together, the heat insulation function of vehicle preheating or pre-cooling and battery is completed, effective use vehicle resource devices integration avoids new
Increase fuel heater, saves resource, reduce cost.
As a further improvement, battery management system controls the charging current that total charging current is battery after air-conditioning is opened
Electric current after being opened with air-conditioning and, avoid request electric current too small, battery cannot be full of, after total charging current adjusts, it is ensured that
Starting of air conditioner control is carried out while battery is fully charged.
Above-mentioned battery management system and air-conditioner controller are also used to before battery charges, and calculate the battery fully charged time
T1, and apart from the time difference T2 of setting time of using cars, when meeting T2-T1 > △ t, and when △ t >=0, meet the charging of this primary cell
Process carries out the condition of air-conditioning unlatching, adjusts vehicle interior temperature according to above-mentioned temperature control method, otherwise this battery charging process
It is not turned on air-conditioning, does not also need the charging current for recalculating battery, battery is charged according to original charging current.
As other embodiments, car-mounted terminal can be also added in humidity control system, and car-mounted terminal is connected by CAN network
Battery management system.Car owner, which can shift to an earlier date, inputs the setting time of using cars in car-mounted terminal, and car-mounted terminal receives the setting time of using cars
Afterwards, the setting time of using cars is sent to battery management system, after battery management system receives the setting time of using cars, calculates battery and fill
The time T1 of full electricity, and apart from the time difference T2 of setting time of using cars, judge T2-T1 > △ t, and when △ t >=0, meet this
Battery charging process carries out the condition of air-conditioning unlatching, and otherwise this battery charging process is not turned on air-conditioning.
After leaving automobile in order to facilitate car owner, just determines to need for second day with vehicle and preheating or pre- is carried out to automobile in advance
Cold, the present invention is also added into the handheld terminal for being wirelessly connected car-mounted terminal, and car owner is set by handheld terminal to car-mounted terminal transmission
Determine the time of using cars.
In order to avoid the temperature of battery before battery charging is too low, plugging in influences battery life, and the present invention is in battery
Before charging, first open heating film to battery and heat a period of time, until battery temperature reaches third set temperature, just beginning according to
The charging current that battery management system or entire car controller calculate charges to battery.
Embodiment two:
The present invention designs a kind of electric car car humidity control system, is suitable for low temperature extremely frigid zones, realizes that vehicle adds
Heat is combined with battery heating and charging process, to complete the process of vehicle heating, battery heating and heat preservation.As shown in Figure 1, warm
Spending regulating system includes car-mounted terminal, battery management system, entire car controller, electrokinetic cell system and air-conditioner controller.Wherein,
Car-mounted terminal connects battery management system by CAN network, and battery management system connects entire car controller by CAN network, together
Sample, entire car controller CAN communication connect air-conditioner controller, and battery management system also samples connection electrokinetic cell system, power electric
Cell system connects air-conditioner controller by high-voltage line.
Based on above system, as shown in Fig. 2, specifically using following temperature adjusting method:
It after vehicle returns the vehicle to the garage and knock off at night, starts to charge, vehicle-mounted DCDC module exports 24 volts of power supplys in charging process, gives cell tube
Reason system, entire car controller, car-mounted terminal controller and air conditioning control device power supply, after Vehicle Controller work, vehicle at this time
Driver issues the vehicle pre- time of departure by cell phone application or handheld terminal and gives vehicle car-mounted terminal, and car-mounted terminal receives pre-
After the time of departure, by vehicle CAN message, the vehicle pre- time of departure is sent into battery management system, battery management system receives
To the pre- time of departure, while full-vehicle control sends local zone time, when battery management system receives the subscription time of vehicle forwarding,
Battery management system calculates charge completion time T1 for the first time at this time, and the battery system charging time will consider battery temperature and current
Initial capacity.
The vehicle pre- time of departure and local zone time, which make the difference, is denoted as T2, compares T1 and T2 at this time, if T2-T1 < 1.5h, vehicle is not
Meet preheating open function, this time charging process is not turned on preheating.If T2-T1 > 1.5h, this charging process, vehicle
Meet preheating open function, when charging normal to SOC > 90%, calculates remaining charging second of battery management system at this time
Deadline, and sending allows open command to entire car controller, entire car controller receives after allowing open command, and transmission refers to
Enable to air conditioning control device, air-conditioner controller receives after entire car controller assigns instruction, and judge environment temperature lower than 15 DEG C,
Open air-conditioning heating mode, to vehicle environment preheat, as SOC > 90%, battery management system will according to the remaining charging time,
And air-conditioning open after power, adjust charging current, charging current be battery is completed within the remaining charging time charging current and
The sum of electric current after air-conditioning unlatching, can be charged in this way with side, and heating is opened on air-conditioning side, waits chargings to terminate to complete, battery management system
System, which sends air-conditioning, does not allow open command to entire car controller, and entire car controller, which receives battery management system not, allows heating to open
After opening instruction, instruction is assigned to air conditioning control device, closes heating function, in the process, if air conditioning control device detects
It is higher than 25 DEG C to temperature, then closes heating function in advance, when temperature is lower than 15 DEG C after closing, is again turned on heating mode, foundation
Environment temperature has repeatedly starting and stopping control.Whole process, air-conditioning opens heating consumption energy and derives from charger, and battery is tieed up
It holds in low current charge mode, until the pre- time of departure, battery system will not cause battery cooling because of placement, reach when dispatching a car
Between, be in vehicle environment it is warm, battery temperature maintains reasonable operation interval, directly drive a vehicle, without open air-conditioning heating, and electricity
Pond heating function.To realize raising heating efficiency, vehicle power consumption, extending driving range purpose are reduced.
Humidity control system of the invention is intelligently combined with charging process, is completed heating function, why is filled using evening
Electric process heats, it is main consider to automatically control at night complete vehicle and battery heating, can be in initial driving in second day
Heating can be completed, heating efficiency is improved, shortens heating time, battery thermal in addition may be implemented, reduces driving battery heating
Opening time saves vehicle power consumption, improves battery efficiency, extends battery life.
For example, vehicle battery system electricity 300KWH, is added when low temperature is 0 DEG C by 600 volts of voltage rating, capacity 500AH
It starting to charge, local zone time is evening 18:00 when charging, after vehicle starts to charge, initial SOC (power-supply system state-of-charge,
State Of Charge, abbreviation SOC, are the ratio of capacity workable for remaining battery Yu battery rated capacity) it is 0%.Driver
The pre- time of departure is issued by cell phone application and gives car-mounted terminal control device, and the pre- time of departure is the next morning 6:00, vehicle-mounted end
After termination receives advance time, it is sent to battery management system with CAN message, battery management system calculates charging for the first time at this time
Time: the normal charging current of battery system is 100A, due to being that under cryogenic, battery system needs to open heating film,
It being heated with the electric-opening of charger, when unlatching is heated to be 20 DEG C, 100A charging can be carried out, heating efficiency is 0.5 DEG C/min,
20 DEG C are heated to from 0 DEG C, needs 40min, is being greater than between 20 DEG C -40 DEG C, battery system can be charged with 100A, less than 20 DEG C
When rate of charge vary with temperature, therefore, when initial SOC be 0%, temperature be 0 DEG C, consider rate of charge, charging temperature, and
Initial SOC, and last constant-pressure drop current charge process, entire charging time are T1=7 hours estimated.The pre- time of departure is calculated again and is opened
The difference in charging time beginning is T2=12 hours, and T2-T1 is greater than 5 hours of entire charging process, therefore vehicle meets preheating and opens
Open function.
When Vehicular charging to SOC is 90%, local zone time is morning 1:00 at this time, at present apart from morning at the time of departure 6:
00, there are also 5 hours, if stopping charging in advance, vehicle preheating and battery thermal will be unable to realize.When at this time according to residue
Between, rate of charge is calculated, SOC residue 10% needs 5 hours to be full of, it needs to request charging current at this time to be 10A, in addition,
SOC > 90%, BMS send air-conditioning open command to entire car controller, after entire car controller receives air-conditioning open command, assign
It instructing to air conditioning control device, it is 5 DEG C that air conditioning control device, which detects environment temperature, and air-conditioning opens heating mode, after air-conditioning is opened,
Electric current is 20A, and therefore, the total current of battery management system request at this time is 10A+20A=30A, at this point, side is charged, emptying tune
Vehicle preheating is opened, battery will not be reduced in low current charge, battery temperature in whole process, play the role of heat preservation, meanwhile,
Whole-vehicle air-conditioner is opening heating, is in heated condition in cabin, until time of departure 6:00, battery are full of, air-conditioning heating is completed.
At this time when vehicle driving, when passenger loading, feel at the first time passenger compartment be it is warm, reduce heating time, reduce vehicle energy
Consumption.Meanwhile battery is in the temperature range of suitable services, battery efficiency is optimal, is conducive to extend battery life.
The present invention efficiently uses air-conditioner controller, battery management system, entire car controller and power battery, and automobile is existing
Device be combined together, using new air conditioning control method, realize whole-vehicle air-conditioner starting control and battery thermal and charged
Journey combines, and with a kind of intelligent control method, completes the heat insulation function of vehicle preheating or pre-cooling and battery, can be effective
Using charging process, the heating and heat preservation of vehicle and battery system are completed.Ensure that battery system operation in optimum temperature section, mentions
High battery system utilization efficiency extends battery life, meanwhile, it is capable to reduce driving heating time, vehicle power consumption is effectively reduced, mentions
High driver comfort degree enhances product competitiveness.
The above description is only a preferred embodiment of the present invention, is not intended to restrict the invention, for those skilled in the art
For member, the invention may be variously modified and varied.All within the spirits and principles of the present invention, it is made it is any modification,
Equivalent replacement, improvement etc., should be included within scope of the presently claimed invention.
Claims (10)
1. a kind of electric car car temperature control method, which comprises the following steps:
1) in battery charging process, when battery charge to setting state-of-charge when, according to the charge capacity of remaining battery and this
When distance setting the time of using cars time difference, calculate within the time difference battery charging current, according to the charging current
It charges to battery, the setting time of using cars is corresponded at the time of battery capacity is full of；
2) within the time difference in battery charging process, whether detection environment inside car temperature reaches the temperature of air-conditioning unlatching, if
Reach, opens air-conditioning.
2. electric car car temperature control method according to claim 1, which is characterized in that after air-conditioning is opened, control
Total charging current be the battery charging current and air-conditioning open after electric current and.
3. electric car car temperature control method according to claim 1, which is characterized in that the vehicle interior temperature reaches
The temperature that air-conditioning is opened are as follows: vehicle interior temperature is greater than the second set temperature less than the first set temperature or vehicle interior temperature；
When vehicle interior temperature is less than the first set temperature, the heating mode of air-conditioning is opened；When vehicle interior temperature is greater than the second setting temperature
When spending, the refrigeration mode of air-conditioning is opened.
4. electric car car temperature control method according to claim 1, which is characterized in that before battery charging,
Calculate the fully charged time T1 of battery, and apart from the time difference T2 of setting time of using cars, when meeting T2-T1 > △ t, and △ t >=
When 0, vehicle interior temperature is adjusted according to step 1) and step 2).
5. electric car car temperature control method according to claim 4, which is characterized in that when meeting T2-T1 > △ t,
And behind t >=0 △, opens heating film and heated to battery, when battery temperature reaches third set temperature, according to step 1) and step
2) vehicle interior temperature is adjusted.
6. a kind of electric car car humidity control system, which is characterized in that including electric quantity acquisition unit and detection control unit,
Wherein, electric quantity acquisition unit is used in battery charging process, when battery charges to setting state-of-charge, according to remaining battery
Charge capacity；
Detection control unit is used for the charge capacity according to remaining battery, and the time difference of distance setting time of using cars at this time,
Calculate within the time difference battery charging current, according to the charging current to battery charge, battery capacity be full of when
Correspond to the setting time of using cars quarter；Within the time difference in battery charging process, whether detection environment inside car temperature reaches
The temperature opened to air-conditioning opens air-conditioning if reaching.
7. electric car car humidity control system according to claim 6, which is characterized in that the electric quantity acquisition unit
For battery management system, the detection control unit includes battery management system or entire car controller, passes through battery management system
Or entire car controller calculates the charging current of the battery within the time difference.
8. electric car car humidity control system according to claim 7, which is characterized in that pass through battery management system
It calculates within the time difference when charging current of battery, the detection control unit further includes air-conditioner controller, airconditioning control
Device communicates to connect battery management system, or communicates to connect battery management system by entire car controller；Battery management system is straight
Connecing to issue or issue air-conditioning unlatching by entire car controller allows to instruct to air-conditioner controller, and air-conditioner controller receives air-conditioning and opens
After allowing instruction, whether detection environment inside car temperature reaches the temperature of air-conditioning unlatching, if reaching, opens air-conditioning.
9. electric car car humidity control system according to claim 6, which is characterized in that after air-conditioning is opened, control
Total charging current be the battery charging current and air-conditioning open after electric current and.
10. a kind of electric car, including interior temperature control system, which is characterized in that interior temperature control system includes electricity
Acquisition unit and detection control unit, wherein electric quantity acquisition unit is used in battery charging process, and battery charges to setting lotus
When electricity condition, according to the charge capacity of remaining battery；
Detection control unit is used for the charge capacity according to remaining battery, and the time difference of distance setting time of using cars at this time,
Calculate within the time difference battery charging current, according to the charging current to battery charge, battery capacity be full of when
Correspond to the setting time of using cars quarter；Within the time difference in battery charging process, whether detection environment inside car temperature reaches
The temperature opened to air-conditioning opens air-conditioning if reaching.
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