CN105514525A - Temperature control device and control method for batteries of hybrid electric vehicles - Google Patents
Temperature control device and control method for batteries of hybrid electric vehicles Download PDFInfo
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- CN105514525A CN105514525A CN201610118575.2A CN201610118575A CN105514525A CN 105514525 A CN105514525 A CN 105514525A CN 201610118575 A CN201610118575 A CN 201610118575A CN 105514525 A CN105514525 A CN 105514525A
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- battery
- car controller
- entire car
- electronic fan
- management system
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2220/00—Batteries for particular applications
- H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
The invention relates to a temperature control device and a control method for batteries of hybrid electric vehicles. The temperature control device and the control method have the advantages that requirements on maximizing the capacity of the batteries and space utilization and minimizing modification on vehicle bodies can be met, the integrated temperature control device for the batteries is in a matching computational design, gaps between the single batteries in battery shells are sufficiently utilized, the cooling air volumes are controlled, the single batteries can be cooled or heated by the aid of air in passenger compartments via inner flow guide plates, air channel pipes, air outlet pipes, electronic fans and upper covers, and pressures of the air in the passenger compartments, noise reduction strategies, heat instability faults of the batteries and the like are taken into consideration by the aid of the control method; the temperature control device for the batteries is compact in structure, the batteries can be maintained to the greatest extent and can assuredly work within appropriate temperature ranges, the safety of the batteries can be guaranteed, the service lives of the batteries can be prolonged, the energy utilization rate can be increased, and the comfort of the integral vehicles can be improved.
Description
Technical field
The invention belongs to Development of HEV Technology field, refer to hybrid power automobile battery control technology field especially, refer to a kind of hybrid power automobile battery temperature control equipment and control method.
Background technology
Increasingly serious along with the energy and environmental problem, energy-conserving and environment-protective concept is rooted in the hearts of the people, hybrid vehicle have multi power source, energy-conservation, discharge the remarkable advantages such as low, obtain worldwide showing great attention to.Battery, as one of hybrid electric vehicle power source, is hybrid vehicle core component, and due to the inherent characteristic of battery, battery charging and discharging ability temperature influence is very large, thus directly affects vehicle performance, also can affect battery life simultaneously.Therefore, need special apparatus and method, battery operated in suitable temperature range to ensure, and the whole battery pack temperature difference will control within the specific limits, when battery pack temperature is too high or too low, starts this device to battery pack refrigeration or heating.
In order to meet hybrid vehicle performance requirement, now generally adopt high power density battery cell, moment can discharge high-power, temperature rise is fast, the energy content of battery is low simultaneously, battery pack space is also less, does not have the arrangement space that pure electric vehicle pond group is large, proposes higher requirement to cell stack designs and thermal management capabilities.At present, hybrid-power battery group only has simple cooling device, and structure is unreasonable, and battery pack operational environment is worsened, and often overheat protector problem occurs, seriously limits applying of hybrid vehicle.
Summary of the invention
The object of this invention is to provide a kind of hybrid power automobile battery temperature control equipment; to realize the control to stack operating temperature; and by providing a kind of control method; to solve over-temperature protection and the low temperature protection problem of battery pack; and then improve the stability of hybrid power automobile battery group, extend the useful life of battery pack.
The present invention is achieved by the following technical solutions:
A kind of hybrid power automobile battery temperature control equipment, comprises housing, is arranged at battery modules in described housing and temperature control system;
Described housing comprises base, upper cover and inner deflector; Described battery modules comprises multiple compact arranged battery cell;
Cover on described and be provided with air inlet; Described housing is divided into corresponding battery chamber by described inner deflector, is provided with battery modules described in a group in each described battery chamber; Described air inlet communicates and one_to_one corresponding with described battery chamber; The side of described base is provided with air outlet; Described air outlet is communicated with each described battery chamber respectively;
Described temperature control system comprises electronic fan, battery management system, entire car controller, blast pipe, discharge pipe and temperature sensor;
One end of described blast pipe is connected with described air inlet, and the other end is connected with vehicle passenger compartment; One end of described discharge pipe is connected with described air outlet, and the other end and described electronic fan are connected ventilation with body mouth;
Described battery management system is electrically connected with described entire car controller, described temperature sensor and described electronic fan respectively.
Described temperature sensor is arranged at described battery modules surface and described air inlet respectively.
Further, described inner deflector is one, and described housing symmetry is divided into two described battery chambers.
A kind of hybrid power automobile battery temperature-controlled process,
The high temperature threshold values of setting battery modules and low temperature threshold values;
The battery modules temperature value of Real-time Collection and intake air temperature value are passed to entire car controller by battery management system by temperature sensor;
If when described entire car controller judges described battery modules temperature value higher than the described high temperature threshold values set, described battery modules temperature value and described intake air temperature value are compared by described entire car controller;
If when the difference of described battery modules temperature value and described intake air temperature value is greater than the first set point, described entire car controller sends electronic fan to described battery management system and opens and speed-regulating instruction; The electronic fan that described battery management system receives entire car controller is opened and after speed-regulating instruction, controls electronic fan and open and speed governing; After electronic fan is opened, by the wind of service on buses or trains cabin inspiration to battery modules forced refrigeration;
If when the difference of described intake air temperature value and described battery modules temperature value is less than described first set point, described entire car controller sends battery modules to described battery management system and to quit work instruction; The battery modules that described battery management system receives entire car controller quits work after instruction, controls battery modules and quits work;
If when described entire car controller judges described battery modules temperature value lower than the described low temperature threshold values set, described battery modules temperature value and described intake air temperature value are compared by described entire car controller;
If when the difference of described intake air temperature value and described battery modules temperature value is greater than the second set point, described entire car controller sends electronic fan to described battery management system and opens and speed-regulating instruction; The electronic fan that described battery management system receives entire car controller is opened and after speed-regulating instruction, controls electronic fan and open and speed governing; After electronic fan is opened, force heating by the wind of service on buses or trains cabin inspiration to battery modules;
If when the difference of described intake air temperature value and described battery modules temperature value is less than described second set point, and under vehicle fuel sufficiency, described entire car controller sends battery modules to described battery management system and to quit work instruction; The battery modules that described battery management system receives entire car controller quits work after instruction, controls battery modules and quits work.
After described electronic fan is opened, described entire car controller receive real-time battery modules temperature value that described temperature sensor sent by described battery management system between described high temperature threshold values and described low temperature threshold values time, described entire car controller sends electronic fan out code to described battery management system; Described battery management system is after receiving described electronic fan out code, and control electronic fan and close, battery modules normally works.
If when described entire car controller detects that air-conditioning is Inner eycle, described entire car controller transmission electronic fan reduction rotating speed or halt instruction are to described battery management system; Described battery management system is when receiving described electronic fan and reducing rotating speed or halt instruction, and described battery management system controls electronic fan and reduces rotating speed or out of service.
If when described entire car controller detects the speed of a motor vehicle lower than set point, described entire car controller sends closes electronic fan instruction; After described battery management system receives the instruction of described closedown electronic fan, control electronic fan out of service.
If when the described battery modules temperature value that described entire car controller receives is higher than described high temperature threshold values set point, described entire car controller sends electronic fan open command; After described battery management system receives described electronic fan open command, control described electronic fan and open and high-speed cruising.
The invention has the beneficial effects as follows:
Hybrid vehicle integration cell apparatus provided by the invention, meet battery capacity and space utilization maximization, vehicle body change minimized requirement simultaneously, integration battery temperature control device, carry out matching primitives design, take full advantage of the gap between the battery cell in battery container, cooling air quantity size controls, by inner deflector, wind channel tube, discharge pipe, electronic fan and upper cover, achieve crew module's wind to the cooling of battery cell or heating, consider crew module's inner air pressure, the control methods such as noise reduction strategies and battery thermal run away fault simultaneously.Above-mentioned battery temperature control device, compact conformation, maintains battery to greatest extent, ensures battery operated in Suitable ranges and fail safe, extends the useful life of battery, improve energy utilization rate and car load comfortableness.
Accompanying drawing explanation
Fig. 1 is battery modules temperature controlled processes schematic diagram;
Fig. 2 is battery modules refrigeration control flow chart;
Fig. 3 is battery modules computer heating control flow chart.
Embodiment
Describe technical scheme of the present invention in detail by the following examples, following embodiment is only exemplary, only can be used for explaining and technical scheme of the present invention being described, and can not be interpreted as being the restriction to technical solution of the present invention.
The invention provides a kind of hybrid power automobile battery temperature control equipment, comprise housing, be arranged at battery modules in described housing and temperature control system; In the present embodiment, include two battery modules, the integrated housing of the housing for holding two battery modules.
Described housing comprises base, upper cover and inner deflector; Described battery modules comprises multiple compact arranged battery cell.
Cover on described and be provided with two air inlets; Described housing is divided into corresponding Liang Ge battery chamber by described inner deflector, is provided with battery modules described in a group in each described battery chamber; Described air inlet communicates and one_to_one corresponding with described battery chamber; The side of described base is provided with air outlet; Described air outlet is communicated with each described battery chamber respectively.
Described temperature control system comprises electronic fan, battery management system, entire car controller, blast pipe, discharge pipe and temperature sensor.
One end of described blast pipe is connected with two described air inlets respectively, and the other end of blast pipe is connected with vehicle passenger compartment; One end of described discharge pipe is connected with described air outlet, and the other end and described electronic fan are connected ventilation with body mouth.
Temperature sensor is connected with battery management system by holding wire, and described battery management system is electrically connected with described entire car controller, described temperature sensor and described electronic fan respectively.Battery management system controls unlatching and the high speed of electronic fan.
Described temperature sensor is arranged at described battery modules surface and described air inlet respectively.Be arranged at the temperature sensor on battery modules surface for gathering the temperature on battery modules surface; Be arranged at the temperature sensor of air inlet for adopting the temperature of crew module.
Hybrid Vehicle battery must be furnished with temperature control equipment, ensure being uniformly distributed of battery temperature field, the invention also discloses a kind of hybrid power automobile battery temperature-controlled process, for meeting battery operated performance temperature requirement, forced air cooling is carried out to battery, according to material heat balance principle, the heat that material obtains is equal with the heat required for material, and the heat dissipation capacity namely needed for battery equals the heat that cooling air absorbs.Absorb heat Calculation formula according to cooling air, the relation between coupling electronic fan rotating speed and battery temperature, realize the closed-loop control of fan adjustable speed according to battery temperature change.
Heat dissipation capacity Q needed for described battery
battery;
The heat Q that cooling air absorbs
inhale=c
airm Δ T;
In formula, c
air-be air ratio thermal capacitance; M-be the quality of cooling air, wherein the quality m of cooling air is the function of electronic fan rotating speed v and operating time t, i.e. m=f (v, t); Δ T-be the temperature difference of electrokinetic cell cooling system air inlet and air outlet;
Then Q
inhale=Q
battery.
Set up the temperature difference of electronic fan rotating speed and electrokinetic cell cooling system inlet and outlet in electrokinetic cell cooling system, the relational expression between the operating time, i.e. Q
battery=c
airf (v, t) Δ T, can regulate electronic fan rotating speed according to temperature of powered cell change, improve electrokinetic cell radiating efficiency.
The high temperature threshold values A of setting battery modules and low temperature threshold values B; High temperature threshold values A and low temperature threshold values B can as required or vehicle use external environment and carry out adaptive settings.
During vehicle process discharge condition, the battery modules temperature value a of Real-time Collection and intake air temperature value b is passed to entire car controller by battery management system by temperature sensor.
If when described entire car controller judges described battery modules temperature value a higher than the described high temperature threshold values A set, described battery modules temperature value a and described intake air temperature value b compares by described entire car controller;
If when the difference of described battery modules temperature value a and described intake air temperature value b is greater than the first set point c, described entire car controller sends electronic fan to described battery management system and opens and speed-regulating instruction; The electronic fan that described battery management system receives entire car controller is opened and after speed-regulating instruction, controls electronic fan and open and speed governing; After electronic fan is opened, by the wind of service on buses or trains cabin inspiration to battery modules forced refrigeration.
After described electronic fan is opened, described entire car controller receive real-time battery modules temperature value a1 that described temperature sensor sent by described battery management system between described high temperature threshold values A and described low temperature threshold values B time, described entire car controller sends electronic fan out code to described battery management system; Described battery management system is after receiving described electronic fan out code, and control electronic fan and close, battery modules normally works.
If when the difference of described intake air temperature value b and described battery modules temperature value a is less than described first set point c, described entire car controller sends battery modules to described battery management system and to quit work instruction; The battery modules that described battery management system receives entire car controller quits work after instruction, controls battery modules and quits work.
When vehicle is in electric discharge or needs to charge the battery state, the battery modules temperature value a of Real-time Collection and intake air temperature value b is passed to entire car controller by battery management system by temperature sensor.
If when described entire car controller judges described battery modules temperature value a lower than the described low temperature threshold values B set, described battery modules temperature value a and described intake air temperature value b compares by described entire car controller;
If when the difference of described intake air temperature value b and described battery modules temperature value a is greater than the second set point d, described entire car controller sends electronic fan to described battery management system and opens and speed-regulating instruction; The electronic fan that described battery management system receives entire car controller is opened and after speed-regulating instruction, controls electronic fan and open and speed governing; After electronic fan is opened, force heating by the wind of service on buses or trains cabin inspiration to battery modules.
After described electronic fan is opened, described entire car controller receive real-time battery modules temperature value a2 that described temperature sensor sent by described battery management system between described high temperature threshold values A and described low temperature threshold values B time, described entire car controller sends electronic fan out code to described battery management system; Described battery management system is after receiving described electronic fan out code, and control electronic fan and close, battery modules normally works.
If when the difference of described intake air temperature value b and described battery modules temperature value a is less than described second set point d, and under the fuel oil sufficiency of vehicle, fuel oil abundance herein refers to the oil mass that can meet engine work needs, and described entire car controller to quit work instruction to described battery management system transmission battery modules; The battery modules that described battery management system receives entire car controller quits work after instruction, controls battery modules and quits work.
Further consider crew module's inner air pressure, the factors such as noise reduction strategies or thermal run away fault.
If when described entire car controller detects that air-conditioning is Inner eycle, described entire car controller transmission electronic fan reduction rotating speed or halt instruction are to described battery management system; Described battery management system is when receiving described electronic fan and reducing rotating speed or halt instruction, and described battery management system controls electronic fan and reduces rotating speed or out of service.
If when described entire car controller detects the speed of a motor vehicle lower than set point v, described entire car controller sends closes electronic fan instruction; After described battery management system receives the instruction of described closedown electronic fan, control electronic fan out of service.
If when the described battery modules temperature value that described entire car controller receives is higher than described high temperature threshold values set point, described entire car controller sends electronic fan open command; After described battery management system receives described electronic fan open command, control described electronic fan and open and high-speed cruising.
Above-mentioned battery temperature control device and temperature-controlled process, compact conformation, maintains battery to greatest extent, ensures battery operated in Suitable ranges and fail safe, extends the useful life of battery, improve energy utilization rate and car load comfortableness.
Although illustrate and describe embodiments of the invention, for the ordinary skill in the art, be appreciated that and can carry out multiple change, amendment, replacement and modification to these embodiments without departing from the principles and spirit of the present invention, scope of the present invention is by claims and equivalency thereof.
Claims (8)
1. a hybrid power automobile battery temperature control equipment, is characterized in that: comprise housing, be arranged at battery modules in described housing and temperature control system;
Described housing comprises base, upper cover and inner deflector; Described battery modules comprises multiple compact arranged battery cell;
Cover on described and be provided with air inlet; Described housing is divided into corresponding battery chamber by described inner deflector, is provided with battery modules described in a group in each described battery chamber; Described air inlet communicates and one_to_one corresponding with described battery chamber; The side of described base is provided with air outlet; Described air outlet is communicated with each described battery chamber respectively;
Described temperature control system comprises electronic fan, battery management system, entire car controller, blast pipe, discharge pipe and temperature sensor;
One end of described blast pipe is connected with described air inlet, and the other end is connected with vehicle passenger compartment; One end of described discharge pipe is connected with described air outlet, and the other end and described electronic fan are connected ventilation with body mouth;
Described battery management system is electrically connected with described entire car controller, described temperature sensor and described electronic fan respectively.
2. hybrid power automobile battery temperature control equipment according to claim 1, is characterized in that: described temperature sensor is arranged at described battery modules surface and described air inlet respectively.
3. hybrid power automobile battery temperature control equipment according to claim 1, is characterized in that: described inner deflector is one, and described housing symmetry is divided into two described battery chambers.
4. a hybrid power automobile battery temperature-controlled process, utilizes battery temperature control device any one of claim 1 to 3; It is characterized in that:
The high temperature threshold values of setting battery modules and low temperature threshold values;
The battery modules temperature value of Real-time Collection and intake air temperature value are passed to entire car controller by battery management system by temperature sensor;
If when described entire car controller judges described battery modules temperature value higher than the described high temperature threshold values set, described battery modules temperature value and described intake air temperature value are compared by described entire car controller;
If when the difference of described battery modules temperature value and described intake air temperature value is greater than the first set point, described entire car controller sends electronic fan to described battery management system and opens and speed-regulating instruction; The electronic fan that described battery management system receives entire car controller is opened and after speed-regulating instruction, controls electronic fan and open and speed governing; After electronic fan is opened, by the wind of service on buses or trains cabin inspiration to battery modules forced refrigeration;
If when the difference of described intake air temperature value and described battery modules temperature value is less than described first set point, described entire car controller sends battery modules to described battery management system and to quit work instruction; The battery modules that described battery management system receives entire car controller quits work after instruction, controls battery modules and quits work;
If when described entire car controller judges described battery modules temperature value lower than the described low temperature threshold values set, described battery modules temperature value and described intake air temperature value are compared by described entire car controller;
If when the difference of described intake air temperature value and described battery modules temperature value is greater than the second set point, described entire car controller sends electronic fan to described battery management system and opens and speed-regulating instruction; The electronic fan that described battery management system receives entire car controller is opened and after speed-regulating instruction, controls electronic fan and open and speed governing; After electronic fan is opened, force heating by the wind of service on buses or trains cabin inspiration to battery modules;
If when the difference of described intake air temperature value and described battery modules temperature value is less than described second set point, and under vehicle fuel sufficiency, described entire car controller sends battery modules to described battery management system and to quit work instruction; The battery modules that described battery management system receives entire car controller quits work after instruction, controls battery modules and quits work.
5. hybrid power automobile battery temperature-controlled process according to claim 4, it is characterized in that: after described electronic fan is opened, described entire car controller receive real-time battery modules temperature value that described temperature sensor sent by described battery management system between described high temperature threshold values and described low temperature threshold values time, described entire car controller sends electronic fan out code to described battery management system; Described battery management system is after receiving described electronic fan out code, and control electronic fan and close, battery modules normally works.
6. hybrid power automobile battery temperature-controlled process according to claim 4, it is characterized in that: if when described entire car controller detects that air-conditioning is Inner eycle, described entire car controller transmission electronic fan reduction rotating speed or halt instruction are to described battery management system; Described battery management system is when receiving described electronic fan and reducing rotating speed or halt instruction, and described battery management system controls electronic fan and reduces rotating speed or out of service.
7. hybrid power automobile battery temperature-controlled process according to claim 4, is characterized in that: if when described entire car controller detects the speed of a motor vehicle lower than set point, and described entire car controller sends closes electronic fan instruction; After described battery management system receives the instruction of described closedown electronic fan, control electronic fan out of service.
8. hybrid power automobile battery temperature-controlled process according to claim 4, it is characterized in that: if when the described battery modules temperature value of described entire car controller reception is higher than described high temperature threshold values set point, described entire car controller sends electronic fan open command; After described battery management system receives described electronic fan open command, control described electronic fan and open and high-speed cruising.
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| CN201610118575.2A CN105514525B (en) | 2016-03-02 | 2016-03-02 | A kind of hybrid power automobile battery temperature control equipment and control method |
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| CN108091958A (en) * | 2016-11-23 | 2018-05-29 | 宝山钢铁股份有限公司 | A kind of lithium battery group radiator and its control method |
| CN109494428A (en) * | 2018-11-08 | 2019-03-19 | 安徽江淮汽车集团股份有限公司 | A kind of batteries of electric automobile cooling system |
| CN109786888A (en) * | 2018-12-19 | 2019-05-21 | 江苏大学 | A kind of battery pack radiator and its method and vehicle |
| CN110556605A (en) * | 2018-06-01 | 2019-12-10 | 郑州宇通客车股份有限公司 | Method and device for controlling battery temperature of hybrid electric vehicle |
| CN110633477A (en) * | 2018-06-22 | 2019-12-31 | 北汽福田汽车股份有限公司 | Vehicle and method and device for calculating pressure of passenger compartment of vehicle |
| CN112731166A (en) * | 2020-12-31 | 2021-04-30 | 东软睿驰汽车技术（沈阳）有限公司 | Lossless cooling control method and device based on PACK battery and electronic equipment |
| CN112751102A (en) * | 2019-10-31 | 2021-05-04 | 比亚迪股份有限公司 | Battery temperature control system and method |
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| CN112751102A (en) * | 2019-10-31 | 2021-05-04 | 比亚迪股份有限公司 | Battery temperature control system and method |
| CN112731166A (en) * | 2020-12-31 | 2021-04-30 | 东软睿驰汽车技术（沈阳）有限公司 | Lossless cooling control method and device based on PACK battery and electronic equipment |
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| CN105514525B (en) | 2017-11-03 |
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