CN102170035B - Method and system for heating management of wireless battery individual - Google Patents
Method and system for heating management of wireless battery individual Download PDFInfo
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- CN102170035B CN102170035B CN 201110085196 CN201110085196A CN102170035B CN 102170035 B CN102170035 B CN 102170035B CN 201110085196 CN201110085196 CN 201110085196 CN 201110085196 A CN201110085196 A CN 201110085196A CN 102170035 B CN102170035 B CN 102170035B
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Abstract
The invention discloses a method and a system for heating management of a wireless battery individual. The method comprises the following steps that: 1, a battery management unit detects temperature and a status signal of an ignition switch; 2, after the ignition switch is ON, the battery management unit compares a detected outdoor temperature and a battery pack temperature with a designed temperature standard value; 3, when the outdoor temperature and the battery pack temperature are accordant with the designed temperature standard value, the battery management unit sends a wireless signal to a battery individual temperature management unit; 4, when receiving the wireless signal which is sent by the battery management unit, the battery individual temperature management unit detects the temperature of the battery individual and compares the temperature with the designed temperature standard value; and 5, the battery individual temperature management unit controls and regulates the temperature of the battery individual. The invention has the advantages that: a heating circuit of the battery individual is arranged inside a control module of the battery individual; heating time is short; power consumption is low; the battery individual is heated uniformly; the battery capacity of a battery pack is equalized; safety and reliability are good; the service life of the battery is long; and power performance and endurance are good.
Description
Technical field
The invention belongs to technical field of automotive electronics, relate to a kind of wireless battery monomer heating reason method, the invention also discloses the system that realizes said method; Be specially adapted to the battery management of pure electric passenger vehicle.
Background technology
The vehicle lithium battery group is comprised of a plurality of battery cell connection in series-parallel, and the capacity of existing battery technology battery cell varies with temperature and changes; Be 100% such as single battery capacity 23 ℃ the time, capacity is 78% in the time of 0 ℃, and capacity is 50% in the time of-20 ℃.After the connection in series-parallel of N batteries monomer, this battery capacity significantly changes the supply badly influence electric powered motor with temperature, under cryogenic conditions, can greatly reduce the performance of electric automobile, can't satisfy the driving demand.Safe, functional for guaranteeing that battery uses, the superperformance of assurance electric motor car must be carried out to battery management and the control of temperature under cryogenic conditions.
The management of existing battery temperature and control solution adopt wind circulating-heating management and control system mostly, battery is monitored and according to the temperature of battery battery are managed and control by microprocessor.Cross when low when detecting battery temperature, by the wind loop heating system to heating of battery.The problem that this solution exists is: wind loop heating system heating source is concentrated, produce power loss in air channel in the wind cyclic process, and the battery cell inequality of being heated, battery capacity is unbalanced, directly affects battery life, dynamic property and flying power.
Summary of the invention
The invention discloses a kind of wireless battery heating management method, solve prior art apoplexy loop heating system heating source and concentrate, produce power loss in air channel in the wind cyclic process, the battery cell inequality of being heated, battery capacity is unbalanced, directly affects the problems such as battery life, dynamic property and flying power.
The present invention also provides the wireless battery heating that realizes said method management system.
Wireless battery monomer heating reason method of the present invention comprises:
First step signal measurement: battery management unit is measured outdoor temperature and battery pack temperature and ignition switch status signal;
The second step state is judged: the ignition switch state is connected, and battery management unit is with the outdoor temperature and battery pack temperature and the comparison of battery management unit design temperature standard value that detect;
The 3rd step wireless signal sends: when outdoor temperature and battery pack temperature and battery management unit design temperature standard value met, battery management unit sent wireless signal to battery cell temperature treatment unit;
The 4th step reception of wireless signals and judgement: when battery cell temperature treatment unit receives the wireless signal of battery management unit transmission, battery cell temperature treatment unit inspection battery cell temperature compares with battery cell temperature treatment Unit Design standard temperature; When if the battery cell temperature that battery cell temperature treatment unit TMU detects is consistent with battery cell temperature treatment unit TMU design temperature standard value, carry out the 5th Buwen's degree management control; When if the battery cell temperature that battery cell temperature treatment unit TMU detects and battery cell temperature treatment unit TMU design temperature standard value are inconsistent, finish;
The 5th Buwen's degree management control: battery cell temperature treatment unit controls regulating cell monomer temperature.
Wireless battery monomer heating management system of the present invention comprises battery cell, ignition switch, and the battery cell parallel connection forms battery pack; The battery pack coupled in series provides power for electric motor car; It is characterized in that: also comprise a battery management unit, battery cell temperature treatment unit, battery cell heating resistor, first group of temperature sensor, second group of temperature sensor, outdoor temperature sensor; Battery cell temperature treatment unit drives with battery cell electricity in parallel and is connected; Battery cell temperature treatment unit and battery cell heating resistor electricly connect; The battery management unit electricity drives and connects; First group of temperature sensor is installed in the battery pack, is connected with the battery management unit signal of telecommunication; Second group of temperature sensor is installed on the battery cell, is connected with the battery cell temperature treatment unit signal of telecommunication; Outdoor temperature sensor is installed on the car body, is connected with the battery management unit signal of telecommunication; Battery management unit connects with the ignition switch signal of telecommunication; Battery management unit and battery cell temperature treatment unit pass through transmission of wireless signals; Battery management unit gathers temperature outside battery pack temperature and the car body sections, temperature and design temperature standard value outside battery pack temperature, the car body sections are relatively calculated, according to comparison result of calculation, and in conjunction with the vehicle ignition switch starting state, judge whether to start battery cell temperature treatment unit; When starting battery cell temperature treatment unit, battery management unit sends wireless signal to battery cell temperature treatment unit, by battery cell temperature treatment unit the battery cell heating resistor is added thermal control, realizes temperature treatment and control to battery cell.
Battery cell temperature treatment of the present invention unit comprises normal open switch, microcontroller, high frequency wireless receiving system; The microcontroller of battery cell temperature treatment unit drives with battery cell electricity in parallel and is connected, the battery cell heating resistor is connected in series afterwards with normal open switch and is electrically connected with battery cell is in parallel, microcontroller and the normal open switch of battery cell temperature treatment unit electricly connect, and the microcontroller of battery cell temperature treatment unit is electrically connected with high frequency wireless receiving system, second group of temperature sensor; Second group of temperature sensor measurement sensing battery cell temperature, when starting battery cell temperature treatment unit, battery management unit sends wireless signal to battery cell temperature treatment unit, the microcontroller of battery cell temperature treatment unit is according to the wireless signal that receives, the microcontroller of battery cell temperature treatment unit is to second group of temperature sensor and established standards value result of calculation relatively, by the break-make of the microprocessor controls normal open switch of battery cell temperature treatment unit.
Battery cell temperature treatment of the present invention unit, battery cell, battery cell heating resistor, second group of temperature sensor form the battery cell control module, the battery cell control module battery pack that forms in parallel, and the battery pack coupled in series provides power for electric motor car.
Battery management unit of the present invention comprises microcontroller, high frequency wireless transmitting system; The microcontroller of battery management unit is electrically connected with the high frequency wireless transmitting system; The microcontroller of battery management unit determines whether to start cell temperature treatment unit according to temperature and the ignition switch signal message of outdoor temperature, battery pack.
An aspect of the invention is that battery management unit drives connection by storage battery, and another kind of scheme is that battery management unit is connected by the driving of transformer electricity by battery pack.
Good effect of the present invention is: battery cell is added thermal control, and the heater circuit of battery cell is inner in the battery cell control module, and battery cell short power consumption heating time is low; Battery cell is heated evenly, and the battery capacity of battery pack is balanced; Even extremely low temperature still has fabulous safety and reliability; Battery life is long; Dynamic property and flying power are good.
Description of drawings
Fig. 1 is wireless battery heating management method flow diagram of the present invention;
Fig. 2 is wireless battery heating management system architecture diagram of the present invention;
Fig. 3 is battery cell temperature treatment of the present invention unit TMU structured flowchart;
Fig. 4 is battery management unit BMU structured flowchart of the present invention;
Among the figure: K1 ignition switch, BMU battery management unit, B1 battery cell, R battery cell heating resistor, TMU battery cell temperature treatment unit, first group of temperature sensor of T1, second group of temperature sensor of T2, T3 outdoor temperature sensor, MCU microcontroller, K2 normal open switch, C1 battery cell control module, UHF-TX high frequency wireless transmitting system, UHF-RX high frequency wireless receiving system, G1 the first battery pack, G2 the second battery pack, Gn n battery pack.
Embodiment
Embodiment 1
As shown in Figure 1: wireless battery monomer heating reason method of the present invention comprises: first step signal measurement: battery management unit BMU measures outdoor temperature and battery pack temperature and ignition switch K1 status signal; The second step state is judged: ignition switch K1 state is connected, and battery management unit BMU compares the outdoor temperature and the battery pack temperature that detect with battery management unit BMU design temperature standard value; The 3rd step wireless signal sends: when outdoor temperature and battery pack temperature and battery management unit BMU design temperature standard value met, battery management unit BMU sent wireless signal to battery cell temperature treatment unit TMU; The 4th step reception of wireless signals and judgement: when battery cell temperature treatment unit TMU receives the wireless signal of battery management unit BMU transmission, battery cell temperature treatment unit TMU detects battery cell B1 temperature, compares with battery cell temperature treatment unit TMU design temperature standard value; When if the battery cell temperature that battery cell temperature treatment unit TMU detects is consistent with battery cell temperature treatment unit TMU design temperature standard value, carry out the 5th Buwen's degree management control; When if the battery cell temperature that battery cell temperature treatment unit TMU detects and battery cell temperature treatment unit TMU design temperature standard value are inconsistent, finish; The 5th Buwen's degree management control: battery cell temperature treatment unit TMU regulating and controlling battery cell B1 temperature.
As shown in Figure 2: the first embodiment of the invention wireless battery monomer heating management system comprises ignition switch K1, battery management unit BMU, a battery cell B1, battery cell temperature treatment unit TMU, battery cell heating resistor R, first group of temperature sensor T1, second group of temperature sensor T2, outdoor temperature sensor T3, and battery cell temperature treatment unit TMU, battery cell B1, battery cell heating resistor R, second group of temperature sensor T2 form battery cell control module C1.Form the first battery pack G1 by 12 battery cell control module C1 parallel connection; Form the second battery pack G2 by 12 battery cell control module C1 parallel connection; Form the 200th battery pack G200 by 12 battery cell control module C1 parallel connection; The first battery pack G1, the second battery pack G2 ... the 200th battery pack G200 coupled in series provides power for electric motor car; Battery management unit BMU is driven by storage battery and connects; Battery cell temperature treatment unit TMU drives with battery cell B1 electricity in parallel and is connected; Battery cell temperature treatment unit TMU and battery cell heating resistor R electricly connect; Battery management unit BMU and ignition switch K1 electrically connect; First group of temperature sensor T1 is installed in the first battery pack G1, the second battery pack G2 ... in the 200th battery pack G200, be connected with the battery management unit BMU signal of telecommunication, first group of temperature sensor T1 measures sensing the first battery pack G1, the second battery pack G2 ... the temperature of the 200th battery pack G200.Outdoor temperature sensor T3 is installed on the car body, is connected with the battery management unit BMU signal of telecommunication, and outdoor temperature sensor T3 measures temperature outside the sensing car body sections; Battery management unit BMU and battery cell temperature treatment unit TMU pass through transmission of wireless signals.
As shown in Figure 3: each battery cell temperature treatment unit TMU comprises microcontroller, normal open switch K2, high frequency wireless receiving system UHF-RX; The microcontroller of battery cell temperature treatment unit TMU drives with battery cell B1 electricity in parallel and is connected, battery cell heating resistor R is connected in series afterwards with normal open switch K2 and is electrically connected with battery cell B1 is in parallel, microcontroller and the normal open switch K2 of battery cell temperature treatment unit TMU electricly connect, and the microcontroller of battery cell temperature treatment unit TMU is electrically connected with high frequency wireless receiving system UHF-RX.
Such as Fig. 2, shown in Figure 3: second group of temperature sensor T2 is installed on the battery cell B1, is connected with the microcontroller signal of telecommunication of battery cell temperature treatment unit TMU.Second group of temperature sensor T2 measures sensing battery cell B1 temperature.
As shown in Figure 4: battery management unit BMU comprises microcontroller, high frequency wireless transmitting system UHF-TX; The microcontroller of battery management unit BMU is electrically connected with high frequency wireless transmitting system UHF-TX; The microcontroller of battery management unit BMU determines whether to start cell temperature treatment unit TMU according to temperature and the ignition switch K1 signal message of outdoor temperature, battery pack.
Such as Fig. 2, Fig. 3, shown in Figure 4: battery management unit BMU gathers temperature outside battery pack temperature and the car body sections, with the first battery pack G1, the second battery pack G2 ... temperature and design temperature standard value are relatively calculated outside n battery pack Gn temperature, the car body sections, according to comparing result of calculation, and in conjunction with vehicle ignition switch K1 starting state, judge whether to start battery cell temperature treatment unit TMU.
When starting battery cell temperature treatment unit TMU, the high frequency wireless transmitting system UHF-TX of battery management unit BMU sends wireless signal to the high frequency wireless receiving system UHF-RX of battery cell temperature treatment unit TMU, the microcontroller of battery cell temperature treatment unit TMU is according to the wireless signal that receives, and second group of temperature sensor T2 measures sensing battery cell B1 temperature, the microcontroller of battery cell temperature treatment unit TMU is with the measurement sensing temperature of first group of temperature sensor T1, the measurement sensing temperature of second group of temperature sensor T2, outdoor temperature sensor T3 measures sensing temperature and the established standards value compares result of calculation, controlled the break-make of normal open switch K1 by the microcontroller of battery cell temperature treatment unit TMU, by battery cell temperature treatment unit TMU the heating resistor R of battery cell is added thermal control, realize temperature treatment and control to battery cell B1.
Embodiment 2
Battery management unit BMU is driven by the transformer electricity by battery pack and connects; Form the first battery pack G1 by 24 battery cell control module C1 parallel connection; Form the second battery pack G2 by 24 battery cell control module C1 parallel connection; Form the 100th battery pack G100 by 24 battery cell control module C1 parallel connection; The first battery pack G1, the second battery pack G2 ... the 100th battery pack G100 coupled in series provides power for electric motor car.
Claims (1)
1. a wireless battery monomer heating reason method comprises:
First step signal measurement: battery management unit BMU measures outdoor temperature and battery pack temperature and ignition switch status signal;
The second step state is judged: the ignition switch state is connected, and battery management unit BMU is with the outdoor temperature and battery pack temperature and the comparison of battery management unit design temperature standard value that detect;
The 3rd step wireless signal sends: when outdoor temperature and battery pack temperature and battery management unit BMU design temperature standard value met, battery management unit BMU sent wireless signal to battery cell temperature treatment unit TMU;
The 4th step reception of wireless signals and judgement: when battery cell temperature treatment unit TMU receives the wireless signal of battery management unit BMU transmission, battery cell temperature treatment unit TMU detects the battery cell temperature, compares with battery cell temperature treatment unit TMU design temperature standard value; When if the battery cell temperature that battery cell temperature treatment unit TMU detects is consistent with battery cell temperature treatment unit TMU design temperature standard value, carry out the 5th Buwen's degree management control; When if the battery cell temperature that battery cell temperature treatment unit TMU detects and battery cell temperature treatment unit TMU design temperature standard value are inconsistent, finish;
The 5th Buwen's degree management control: battery cell temperature treatment unit TMU regulating and controlling battery cell temperature.
2, a kind of wireless battery monomer heating management system of realizing the wireless battery monomer heating reason method of claim 1 comprises battery cell, ignition switch, and the battery cell parallel connection forms battery pack; The battery pack coupled in series provides power for electric motor car; It is characterized in that: also comprise a battery management unit BMU, battery cell temperature treatment unit TMU, battery cell heating resistor, first group of temperature sensor, second group of temperature sensor, outdoor temperature sensor; Battery cell temperature treatment unit TMU drives with battery cell electricity in parallel and is connected; Battery cell temperature treatment unit TMU and battery cell heating resistor electricly connect; Battery management unit BMU is driven by the transformer electricity by battery pack and connects; First group of temperature sensor is installed in the battery pack, is connected with the battery management unit BMU signal of telecommunication; Second group of temperature sensor is installed on the battery cell, is connected with the battery cell temperature treatment unit TMU signal of telecommunication; Battery cell temperature treatment unit TMU comprises normal open switch; The battery cell heating resistor is connected in series afterwards with the normal open switch of battery cell temperature treatment unit and is electrically connected with battery cell is in parallel; Outdoor temperature sensor is installed on the car body, is connected with the battery management unit BMU signal of telecommunication; Battery management unit BMU connects with the ignition switch signal of telecommunication; Battery management unit BMU and battery cell temperature treatment unit TMU pass through transmission of wireless signals.
3, a kind of wireless battery monomer heating management system according to claim 2 is characterized in that: battery cell temperature treatment unit TMU comprises normal open switch, microcontroller, high frequency wireless receiving system; The microcontroller of battery cell temperature treatment unit TMU drives with battery cell electricity in parallel and is connected, the battery cell heating resistor is connected in series afterwards with normal open switch and is electrically connected with battery cell is in parallel, microcontroller and the normal open switch of battery cell temperature treatment unit TMU electricly connect, and the microcontroller of battery cell temperature treatment unit TMU is electrically connected with high frequency wireless receiving system, second group of temperature sensor.
4, wireless battery monomer heating management system according to claim 2 is characterized in that: battery management unit comprises microcontroller, high frequency wireless transmitting system; The microcontroller of battery management unit is electrically connected with the high frequency wireless transmitting system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110085196 CN102170035B (en) | 2011-04-06 | 2011-04-06 | Method and system for heating management of wireless battery individual |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110085196 CN102170035B (en) | 2011-04-06 | 2011-04-06 | Method and system for heating management of wireless battery individual |
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| CN102170035A CN102170035A (en) | 2011-08-31 |
| CN102170035B true CN102170035B (en) | 2013-01-16 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106299547B (en) * | 2016-09-07 | 2019-04-12 | 中国北方车辆研究所 | Lithium-ions battery power supply automatic equalization heating system and heating method |
| CN107196388A (en) * | 2017-07-27 | 2017-09-22 | 重庆日拓能源科技有限公司 | Batteries in parallel connection group voltage balance management system, batteries in parallel connection group and its control method |
| CN108832074B (en) * | 2018-05-22 | 2020-11-10 | 华为技术有限公司 | Battery pole piece and preparation method thereof, battery management method and related device |
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| US5834131A (en) * | 1997-05-02 | 1998-11-10 | Itt Manufacturing Enterprises, Inc. | Self warming low cost tactical electronics battery |
| JP2010067386A (en) * | 2008-09-09 | 2010-03-25 | Toyota Motor Corp | Temperature raising structure of electricity storing element, and electricity storing device |
| CN101710631A (en) * | 2009-12-16 | 2010-05-19 | 奇瑞汽车股份有限公司 | Heating device for lithium ion power battery |
| CN202013924U (en) * | 2011-04-06 | 2011-10-19 | 富奥汽车零部件股份有限公司 | Wireless battery monomer heating management system |
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Address after: Dongfeng Street 130011 Jilin province Changchun Automobile City Economic and Technological Development Zone No. 777 Patentee after: Fawer Automotive Parts Limited Company Address before: 130033 No. 245, Shenzhen street, Changchun Economic Development Zone, Jilin, China Patentee before: Fawer Automotive Parts Limited Company |