CN106427461A - Temperature adjusting method of accumulator of pure electric vehicle or accumulator of hybrid electric vehicle - Google Patents
Temperature adjusting method of accumulator of pure electric vehicle or accumulator of hybrid electric vehicle Download PDFInfo
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- CN106427461A CN106427461A CN201510977293.3A CN201510977293A CN106427461A CN 106427461 A CN106427461 A CN 106427461A CN 201510977293 A CN201510977293 A CN 201510977293A CN 106427461 A CN106427461 A CN 106427461A
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- Prior art keywords
- temperature
- refrigerating circuit
- accumulator
- pid
- control mode
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00271—HVAC devices specially adapted for particular vehicle parts or components and being connected to the vehicle HVAC unit
- B60H1/00278—HVAC devices specially adapted for particular vehicle parts or components and being connected to the vehicle HVAC unit for the battery
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00357—Air-conditioning arrangements specially adapted for particular vehicles
- B60H1/00385—Air-conditioning arrangements specially adapted for particular vehicles for vehicles having an electrical drive, e.g. hybrid or fuel cell
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00271—HVAC devices specially adapted for particular vehicle parts or components and being connected to the vehicle HVAC unit
- B60H2001/00307—Component temperature regulation using a liquid flow
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
- Secondary Cells (AREA)
- Air-Conditioning For Vehicles (AREA)
Abstract
The invention discloses a temperature adjusting method of an accumulator of a pure electric vehicle or an accumulator of a hybrid electric vehicle. The temperature adjusting method comprises the following steps of detecting the temperature of the accumulator; judging whether the temperature of the accumulator achieves a tolerance threshold or not; and if yes, after a vehicle-mounted refrigerating system is started, branching a part of or all of refrigerants in a first refrigerating circuit to a second refrigerating circuit to allow the accumulator to be cooled. The vehicle-mounted refrigerating system comprises the first refrigerating circuit and the second refrigerating circuit, wherein the first refrigerating circuit is used for refrigerating a driving cab; and the second refrigerating circuit is used for cooling the accumulator. According to the technical scheme of the temperature adjusting method disclosed by the invention, a conventional refrigerating technology in the driving cab of the vehicle can be utilized; and when the accumulator needs cooling, the refrigerants are branched for cooling the accumulator, so that the cost is saved, and the cooling effect of the accumulator is guaranteed.
Description
Technical field
The present invention relates to vehicle electronics technical field, more particularly to a kind of electric or hybrid automobile batteries temperature
Control method.
Background technology
Electric automobile, using vehicle power as power, is travelled under the driving of motor, and the impact to environment is less, tool
Have broad application prospects.
Electric automobile, for classification, including pure electric automobile, hybrid vehicle and fuel cell car.Wherein,
Pure electric automobile and hybrid vehicle all comprise can be with the accumulator of discharge and recharge.Accumulator is as its critical component, direct shadow
Ring the performance of pure electric automobile or hybrid vehicle.Accumulator can make own temperature raise due to heat effect in discharge and recharge,
The efficiency of battery when battery temp exceedes certain limit, can be affected, when serious, be likely to result in battery explosion.Therefore, it is necessary to carry
For a kind of method that battery temp is adjusted, when battery temp is too high, can radiate for it in time and lower the temperature,
Ensure battery-operated under suitable temperature conditionss and traffic safety.
Current heat dissipation technology mainly has air cooling, liquid cold and the method such as phase-change material.Air cooling technique rate of cooling is slower, effect
Rate is also relatively lower.Although phase-change material radiating is preferably, with high costs.Become for accumulator cooling using liquid cooling method
A kind of economic, the also ideal selection of effect simultaneously.
Content of the invention
Based on this it is necessary to provide a kind of control method of pure electric or hybrid automobile storage battery temperature, Neng Gouli
With traditional Refrigeration Technique in automobile cabin, when accumulator needs cooling, cold-producing medium is diverted to accumulator cooling, both saved
Save cost, also ensure that accumulator cooling-down effect.
A kind of control method of pure electric or hybrid automobile storage battery temperature, including：
The temperature of detection accumulator；
Judge whether the temperature of described accumulator reaches tolerance threshold values；
If so, then after vehicle-mounted refrigerating system unlatching, it is diverted to or all the refriger-ant section in the first refrigerating circuit
In second refrigerating circuit, to supply described accumulator cooling；Described vehicle-mounted refrigerating system includes the first refrigerating circuit and the second system
Cold loop, described first refrigerating circuit is freezed for driver's cabin, and described second refrigerating circuit is lowered the temperature for described accumulator.
Specifically, methods described also includes：Judge whether described first refrigerating circuit is freezed for driver's cabin, if
It is then to execute the temperature control mode based on PID；
Described included based on the temperature control mode of PID：Preferential guarantee the first refrigerating circuit carries out refrigeration work, will drive interior
Temperature is down to ratio target temperature TASLower TAS0；Again cold-producing medium is all diverted to the second refrigerating circuit, for accumulator cooling,
Until drive indoor temperature ging up to target temperature TAS.
Specifically, methods described also includes：Judge automobile external ambient temperature whether higher than default high temperature threshold values TPIf,
It is then to execute the first temperature control mode based on PID, if it is not, then executing the second temperature control mode based on PID；
Described the first temperature control mode based on PID, compared to described the second temperature control mode based on PID, described TASWith institute
State TAS0There is bigger temperature difference.
Specifically, under conditions of described execution is based on first temperature control mode of PID, TAS-TAS0=3 DEG C.
Specifically, if by cold-producing medium by the first refrigerating circuit be diverted to the second refrigerating circuit temporal frequency be T1, will make
Cryogen is T by the temporal frequency that the second refrigerating circuit is recovered to the first refrigerating circuit2, then described execution based on PID first
Under conditions of temperature control mode, T1＜ T2.
Specifically, under conditions of execution is based on first temperature control mode of PID, methods described also includes：Increase described
The air output of one refrigerating circuit.
Specifically, under conditions of described execution is based on second temperature control mode of PID, TAS-TAS0=2 DEG C.
Specifically, if by cold-producing medium by the first refrigerating circuit be diverted to the second refrigerating circuit temporal frequency be T3, will make
Cryogen is T by the temporal frequency that the second refrigerating circuit is recovered to the first refrigerating circuit4, then described execution based on PID second
Under conditions of temperature control mode, T3=T4.
Specifically, TP=35 DEG C.
The control method of above-mentioned pure electric or hybrid automobile storage battery temperature, the temperature of detection accumulator, judge to store
Whether the temperature of battery reaches tolerance threshold values, if so, then after vehicle-mounted refrigerating system unlatching, by the refrigeration in the first refrigerating circuit
Agent is partly or entirely diverted in the second refrigerating circuit, to supply accumulator cooling, thus, it is possible to pass using in automobile cabin
The Refrigeration Technique of system, when accumulator needs cooling, cold-producing medium is diverted to accumulator cooling, had both saved cost, and also ensured
Accumulator cooling-down effect.
Brief description
Fig. 1 is that the flow process of the control method of pure electric or hybrid automobile storage battery temperature in an embodiment is illustrated
Figure；
Fig. 2 is the schematic diagram of the temperature control mode based on PID in an embodiment；
Fig. 3 is the structural representation of the vehicle-mounted refrigerating system in an embodiment；
Fig. 4 is the control flow schematic diagram in an embodiment.
Specific embodiment
In order that the objects, technical solutions and advantages of the present invention become more apparent, below in conjunction with drawings and Examples, right
The present invention is further elaborated.It should be appreciated that specific embodiment described herein is only in order to explain the present invention, and
It is not used in the restriction present invention.
Referring to Fig. 1, provide a kind of regulation of pure electric or hybrid automobile storage battery temperature in one embodiment
Method, including：
Step 101, the temperature of detection accumulator.
Specifically, temperature sensor can be set on the surface of pure electric automobile or hybrid vehicle accumulator, to gather
The surface temperature of accumulator, and in real time the surface temperature of accumulator is detected.
Step 102, judges whether the temperature of accumulator reaches tolerance threshold values.
Specifically, tolerance threshold values can pre-set.Usually, accumulator operationally has the ginseng of a highest tolerable temperature
Number, tolerance threshold values can be more lower slightly than highest tolerable temperature.The surface temperature of real-time detection accumulator, and contrast with tolerance threshold values,
If reaching tolerance threshold values, execution step 103, otherwise continues the temperature of detection accumulator.
Step 103, if so, then after vehicle-mounted refrigerating system unlatching, by the refriger-ant section in the first refrigerating circuit or complete
Part flows in the second refrigerating circuit, to supply accumulator cooling.
Specifically, the vehicle-mounted refrigerating system described in the present embodiment includes the first refrigerating circuit and the second refrigerating circuit.First
Refrigerating circuit is freezed for driver's cabin, and this part may be referred to existing known technology, including compressor, condenser, throttling dress
Put, vaporizer, aerator etc., compressor, condenser, throttling arrangement and vaporizer are connected with copper pipe (or aluminum pipe) and rubber tube
Become a closed system.Second refrigerating circuit is lowered the temperature for accumulator, this partly can by necessary connection valve connect to
First refrigerating circuit, opens or closes under the control of the signal of telecommunication with valve, it will cold-producing medium from the first refrigerating circuit portion
Divide or be all diverted to the second refrigerating circuit, or cold-producing medium is reclaimed from the second refrigerating circuit.Second refrigerating circuit
At the position of accumulator, heat abstractor can be provided with, supply accumulator to lower the temperature when by cold-producing medium.Refrigeration in the present embodiment
Agent can be, but not limited to be freon.
Whether this step 103, in concrete implementation procedure, can also first judge the first refrigerating circuit for driving further
Sail room to be freezed, if so, then execute the temperature control mode based on PID.Wherein Fig. 2 is the schematic diagram of the temperature control mode based on PID,
Included based on the temperature control mode of PID：Preferential guarantee the first refrigerating circuit carries out refrigeration work, compares mesh by driving indoor temperature and being down to
Mark temperature TASLower TAS0；Again cold-producing medium is all diverted to the second refrigerating circuit, for accumulator cooling, until driving indoor
Temperature recovery is to target temperature TAS.I.e. before in figure moment X1, the first refrigerating circuit is lowered the temperature for driver's cabin, in moment X1 and
Between X2, cold-producing medium is all diverted in the second refrigerating circuit connection valve, is accumulator cooling.Connection valve used herein
Can be three-way magnetic valve, during power-off first refrigerating circuit conducting, closed in electrified state first refrigerating circuit and cold-producing medium is imported
Second refrigerating circuit.
Referring to Fig. 3, it is the application scenarios of the method for the embodiment of the present invention.In the present embodiment, also accordingly provide one kind
System, including：Control module 31, the battery temperature sensor 32 of collection accumulator 30 temperature, the battery of detection battery temp
Temperature monitoring module 33, air conditioning system 34, battery cooling valve 35, heat abstractor 36, reflux inlet 37.Air conditioning system 34 includes air-conditioning
Control module 342, compressor 343, condenser (not shown), throttling arrangement (not shown), vaporizer 344, air blast
Machine 345, wherein compressor, condenser, throttling arrangement, vaporizer constitute the first refrigerating circuit.Compressor, battery cooling valve, dissipate
Also it is connected with conduit between thermal, reflux inlet, form the second refrigerating circuit.Control module 31 controls battery cooling valve, backflow
The opening and closing of valve.Battery cooling valve can be three-way magnetic valve, during closing first refrigerating circuit open and second freezes back
Road is closed, and during unlatching, the cold-producing medium being gone out by compressor all imports the second refrigerating circuit.When reflux inlet is opened, cold-producing medium will
It is recovered in vaporizer.
Additionally, in the present embodiment, such as prior art, if dry battery 30 composition battery bag 300.System in the present embodiment
Also include tolerating temperature setting module 331, in order to pre-set the tolerance temperature of accumulator.Air conditioning system 31 can also be as existing
Technology, is individually for driver's cabin and is lowered the temperature, and arranges the target temperature driving room temperature lowering especially by vehicle interior temperature setup module 381
Degree, vehicle interior temperature monitoring modular 38 is used for real-time detection and drives indoor temperature.Air conditioning system 34 operationally can be by each part
Working condition feeds back to control module 31.Control module 31 is also associated with the outer temperature monitoring module 39 of car, for detecting car outer shroud
The temperature in border.
The system of the present embodiment, is to improve in the air conditioning system and control module of prior art, when storage is detected
Battery temperature reaches tolerance temperature, and just using existing refrigeration part, it is electric power storage that cold-producing medium is diverted in the second refrigerating circuit
Pond lowers the temperature, and arranges battery high-temperature respond module 341 by this air conditioning system 34, reaches tolerance temperature for executing battery temp
Air conditioner control strategy afterwards, can be specifically to be included based on the temperature control mode of PID：Preferential guarantee the first refrigerating circuit is freezed
Work, is down to ratio target temperature T by driving indoor temperatureASLower TAS0；Again cold-producing medium is all diverted to the second refrigeration to return
Road, for accumulator cooling, until drive indoor temperature go up to target temperature TAS.
Corresponding to Fig. 3, Fig. 4 embodiment provides corresponding control flow, including：
Step 400, starts.
Step 401, detects battery temp.
Step 402, judges whether battery temp reaches tolerance threshold values.Battery is otherwise dropped by if so, execution step 403
Warm valve cuts out, and reflux inlet is opened.
Step 403, judges whether refrigeration system has been switched on, and whether the first refrigerating circuit currently drops for driver's cabin
Temperature.If so, execution step 404, otherwise open battery cooling valve, keep the first refrigerating circuit to close, and cold-producing medium is directed into the
Two refrigerating circuits are lowered the temperature for accumulator.
Whether step 404, determine whether automobile external ambient temperature higher than default high temperature threshold values TP, if so, then execute
To 408, i.e. the first temperature control mode based on PID, if it is not, then execution step 409 to 412, i.e. second based on PID for step 405
Temperature control mode.Default high temperature threshold values TPCan be 35 DEG C, identify driving interior and there is higher refrigeration demand, be hereby based on
First temperature control mode of PID, compared to the second temperature control mode based on PID, TASWith TAS0There is bigger temperature difference.
Step 405 is to the first temperature control mode that 408 is based on PID, specific as follows：
Step 405, is preferentially down to ratio target temperature T by driving indoor temperatureASLower TAS0.Specifically, it is based in execution
Under conditions of first temperature control mode of PID, TAS-TAS0=3 DEG C.Air conditioning system is switched to interior circulation, and increases the first refrigeration and return
The air output (for example controlling the windscreen that of aerator to increase by one grade) on road.
Step 406, controls battery cooling valve to close after opening the T1 time.
Step 407, controls reflux inlet to close after opening the T2 time.
Specifically, by cold-producing medium by the first refrigerating circuit be diverted to the second refrigerating circuit temporal frequency be T1, will freeze
Agent is T by the temporal frequency that the second refrigerating circuit is recovered to the first refrigerating circuit2, then the first temperature based on PID in described execution
Under conditions of control pattern, T1＜ T2, such as T1=20 unit of time, T2=40 unit of time.
Step 408, judges to drive whether indoor temperature gos up to target temperature.If so, return to step 401, otherwise return
Step 406.
Step 409 to step 412 is the second temperature control mode based on PID, and principle is similar with the first temperature control mode, summary
As follows：
Step 409, is preferentially down to ratio target temperature T by driving indoor temperatureASLower TAS0.Specifically, it is based in execution
Under conditions of second temperature control mode of PID, TAS-TAS0=2 DEG C.And air conditioning system is switched to interior circulation.
Step 410, controls battery cooling valve to close after opening the T3 time.
Step 411, controls reflux inlet to close after opening the T4 time.
Specifically, under conditions of described execution is based on second temperature control mode of PID, T3=T4, for example, can be simultaneously set to
30 unit of time.
Step 412, judges to drive whether indoor temperature gos up to target temperature.
If so, return to step 401, otherwise return to step 410.
The control method of the pure electric or hybrid automobile storage battery temperature of above-described embodiment, both saved cost,
Ensure that accumulator cooling-down effect, preferentially ensure that the first refrigerating circuit carries out driving indoor cooling simultaneously, improve user's body
Test.
Embodiment described above only have expressed the several embodiments of the present invention, and its description is more concrete and detailed, but simultaneously
Therefore the restriction to the scope of the claims of the present invention can not be interpreted as.It should be pointed out that for those of ordinary skill in the art
For, without departing from the inventive concept of the premise, some deformation can also be made and improve, these broadly fall into the guarantor of the present invention
Shield scope.Therefore, the protection domain of patent of the present invention should be defined by claims.
Claims (9)
1. a kind of control method of pure electric or hybrid automobile storage battery temperature is it is characterised in that methods described includes：
The temperature of detection accumulator；
Judge whether the temperature of described accumulator reaches tolerance threshold values；
If so, then after vehicle-mounted refrigerating system unlatching, be diverted to second by the refriger-ant section in the first refrigerating circuit or all
In refrigerating circuit, to supply described accumulator cooling；Described vehicle-mounted refrigerating system includes the first refrigerating circuit and second and freezes back
Road, described first refrigerating circuit is freezed for driver's cabin, and described second refrigerating circuit is lowered the temperature for described accumulator.
2. method according to claim 1 is it is characterised in that methods described also includes：Judge described first refrigerating circuit
Whether freezed for driver's cabin, if so, then executed the temperature control mode based on PID；
Described included based on the temperature control mode of PID：Preferential guarantee the first refrigerating circuit carries out refrigeration work, will drive indoor temperature
It is down to ratio target temperature TASLower TAS0；Again cold-producing medium is all diverted to the second refrigerating circuit, for accumulator cooling, until
Drive indoor temperature to go up to target temperature TAS.
3. method according to claim 2 is it is characterised in that methods described also includes：Judge automobile external ambient temperature
Whether higher than default high temperature threshold values TP, if so, then execute the first temperature control mode based on PID, if it is not, then executing based on PID's
Second temperature control mode；
Described the first temperature control mode based on PID, compared to described the second temperature control mode based on PID, described TASWith described TAS0
There is bigger temperature difference.
4. method according to claim 3 is it is characterised in that bar in described first temperature control mode based on PID for the execution
Under part, TAS-TAS0=3 DEG C.
5. cold-producing medium is diverted to the second system by the first refrigerating circuit it is characterised in that setting by method according to claim 4
The temporal frequency of cold loop is T1, by cold-producing medium by the second refrigerating circuit be recovered to the first refrigerating circuit temporal frequency be T2, then
Under conditions of described execution is based on first temperature control mode of PID, T1＜ T2.
6. the method according to claim 4 or 5 is it is characterised in that condition in the first temperature control mode based on PID for the execution
Under, methods described also includes：Increase the air output of described first refrigerating circuit.
7. method according to claim 3 is it is characterised in that bar in described second temperature control mode based on PID for the execution
Under part, TAS-TAS0=2 DEG C.
8. cold-producing medium is diverted to the second system by the first refrigerating circuit it is characterised in that setting by method according to claim 7
The temporal frequency of cold loop is T3, by cold-producing medium by the second refrigerating circuit be recovered to the first refrigerating circuit temporal frequency be T4, then
Under conditions of described execution is based on second temperature control mode of PID, T3=T4.
9. method according to claim 3 is it is characterised in that TP=35 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510977293.3A CN106427461B (en) | 2015-12-21 | 2015-12-21 | The adjusting method of pure electric vehicle or hybrid vehicle battery temp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510977293.3A CN106427461B (en) | 2015-12-21 | 2015-12-21 | The adjusting method of pure electric vehicle or hybrid vehicle battery temp |
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| Publication Number | Publication Date |
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| CN106427461A true CN106427461A (en) | 2017-02-22 |
| CN106427461B CN106427461B (en) | 2019-04-19 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108110368A (en) * | 2017-11-20 | 2018-06-01 | 重庆长安汽车股份有限公司 | The heat management system and method for a kind of power battery |
| CN111231769A (en) * | 2020-01-20 | 2020-06-05 | 东风汽车集团有限公司 | Electric vehicle heat management method and system |
| CN111497550A (en) * | 2019-01-31 | 2020-08-07 | 广州汽车集团股份有限公司 | Automobile temperature control device and control method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19726304A1 (en) * | 1997-06-20 | 1998-12-24 | Martinez Carlos Maria Carrasco | Auxiliary air conditioning system for vehicle providing cold air independent of conventional system |
| CN103171450A (en) * | 2011-12-21 | 2013-06-26 | 福特环球技术公司 | Method and system for heat management of vehicle high-voltage battery |
-
2015
- 2015-12-21 CN CN201510977293.3A patent/CN106427461B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19726304A1 (en) * | 1997-06-20 | 1998-12-24 | Martinez Carlos Maria Carrasco | Auxiliary air conditioning system for vehicle providing cold air independent of conventional system |
| CN103171450A (en) * | 2011-12-21 | 2013-06-26 | 福特环球技术公司 | Method and system for heat management of vehicle high-voltage battery |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108110368A (en) * | 2017-11-20 | 2018-06-01 | 重庆长安汽车股份有限公司 | The heat management system and method for a kind of power battery |
| CN111497550A (en) * | 2019-01-31 | 2020-08-07 | 广州汽车集团股份有限公司 | Automobile temperature control device and control method thereof |
| CN111497550B (en) * | 2019-01-31 | 2022-03-18 | 广汽埃安新能源汽车有限公司 | Automobile temperature control device and control method thereof |
| CN111231769A (en) * | 2020-01-20 | 2020-06-05 | 东风汽车集团有限公司 | Electric vehicle heat management method and system |
| CN111231769B (en) * | 2020-01-20 | 2021-07-06 | 东风汽车集团有限公司 | Electric vehicle heat management method and system |
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| Publication number | Publication date |
|---|---|
| CN106427461B (en) | 2019-04-19 |
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