CN102508168A - Testing study system of automotive battery system - Google Patents
Testing study system of automotive battery system Download PDFInfo
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- CN102508168A CN102508168A CN2011103352583A CN201110335258A CN102508168A CN 102508168 A CN102508168 A CN 102508168A CN 2011103352583 A CN2011103352583 A CN 2011103352583A CN 201110335258 A CN201110335258 A CN 201110335258A CN 102508168 A CN102508168 A CN 102508168A
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Abstract
The invention discloses a testing study system of an automotive battery system, which is composed of three subsystems of an automotive battery load system, an automotive battery system and an automotive battery test system. The automotive battery load system is used for charging and discharging a battery in the automotive battery system. The automotive battery system is matched with the automotive battery load system to achieve charging and discharging the battery. The automotive battery test system is used for collecting and monitoring data of the automotive battery system. The testing study system of the automotive battery system achieves the testing study function of testing and assessing basic performance of the automotive battery system, has the ability to accurately control a battery charging and discharging process, simultaneously has the functions of estimation of state of charge (SOC), measurement of battery system efficiency, measurement of battery system internal resistance, measurement of battery system service life and the like, and is capable of testing performance parameters of every single battery conveniently and recording data quickly and conveniently.
Description
Technical field
The present invention relates to a kind of Vehicular battery system test research system, this system is involved in the performance test of Vehicular dynamic battery.
Background technology
Electric automobile is a kind of new-energy automobile, because it is compared with traditional internal-combustion engine vehicle, having energy-saving and environmental protection and moving quiet good operating characteristic becomes the focus in the current young mobile research and development technology.Vehicular battery is the power of electric automobile, is one of critical component of forming by electric automobile.The serviceability of Vehicular battery is very big for the influence of electric automobile, so the Vehicular battery performance test is one of gordian technique in the battery applications.
The Vehicular battery system is different from the battery system of general electron device (notebook computer, DV, digital camera, MP 3 etc.); In general, common used for electronic device battery system adopts the single battery monomer as its core, and the operating mode of battery generally all is more stable; Working current is smaller; Stable operating voltage, the battery thermal value is limited, and the performance of battery is not remarkable for the performance impact of electronic product.For Vehicular battery, for the power, the energy requirement that satisfy vehicle, the common volume ratio of battery is bigger, and the volume of battery cell is bigger; And owing to want drive motor work, the voltage of battery will reach more than the 300V, Vehicular battery adopts battery cell to be composed in series electric battery usually, the battery that volume of battery is used much larger than the ordinary electronic product.In the process of electric automobile operation; Switching along with operating modes such as the start and stop of vehicle, acceleration, brakings; The duty of battery changes through regular meeting, and current changing rate is big and variation is frequent, and the state-of-charge of battery (SOC) also can change along with the carrying out of charging process and discharge process.A lot of control strategies of car load all are closely bound up with the duty of battery, and the operating characteristic of accurately grasping battery is significant for vehicle development.Electric automobile is than the ordinary internal combustion engine automobile, and its inferior position just is the continuation of the journey mileage and the battery life of battery, and therefore, battery performance has very large influence for the overall performance of electric automobile.
The Vehicular battery system test is a very important link in the process of whole power system of electric automobile exploitation.Can accurately measure and grasp battery operated parameter, can be directly connected to the electric motor car integrated vehicle control tactics efficiently and accurately, and then influence car load power performance, continual mileage etc.The test of Vehicular battery system should be carried out before the complete vehicle test, and its cycle has influence on the construction cycle of car load power system, the Experimental Study System of battery system need can the rapid evaluation battery serviceability.General battery testing system has only the battery charging and discharging appearance; The battery data recorded and stored is inconvenient; And discharge and recharge appearance and generally can only monitor the battery population parameter; Can not monitor fully for the monomer parameter, such experimental study system is not easily in the battery testing process, makes the test period become very long.
Summary of the invention
The objective of the invention is for the experimental study system of a kind of Vehicular battery system is provided, make it can be used in each item test of Vehicular battery; Use research and development for the electric motor car Vehicular battery necessary material conditions and technological means support is provided.It is this experimental study system proposed by the invention; Can be used in each item basic parameter test of Vehicular battery and help the battery production merchant to carry out the battery research and development and improve; Can carry out the battery efficiency test; Can study the variation tendency of each item basic parameter of battery, can carry out the battery working condition measurement and assess battery life with duty.
For achieving the above object, Vehicular battery system test research of the present invention system, it is made up of Vehicular battery load system, Vehicular battery system, Vehicular battery test macro three each and every one subsystems;
The Vehicular battery load system is used for the battery of Vehicular battery system is discharged and recharged, and can simulate and directly control the working condition of Vehicular battery system to battery operating condition onboard;
Vehicular battery system and Vehicular battery load system cooperate charging or the discharge that realizes battery;
The Vehicular battery test macro is to be used for the data of Vehicular battery system are gathered and monitored.
Wherein, the described form that discharges and recharges comprises one of following or combination:
The constant voltage of the different voltage strengths of battery different multiplying constant current charge-discharge, battery discharges and recharges, the discharging and recharging of the discharging and recharging of the different current changing rates of battery, the different voltage build-up rates of battery or rate of descent, battery operating mode cycle charge-discharge.
Wherein, described Vehicular battery load system comprises Arbin battery charging and discharging testing table and MITS Pro control system; Battery plus-negative plate has through power line and is electrically connected in Arbin battery charging and discharging testing table in the Vehicular battery load system and the Vehicular battery system; Have through the data acquisition line between the data acquisition slave plate of the battery cell of Vehicular battery system and Vehicular battery test macro and be electrically connected.
Wherein, the Vehicular battery test macro comprises four ingredients: sensor, data acquisition slave plate, data processing and control main board and acquisition system computing machine;
(1) have between sensor and the data acquisition slave plate and be electrically connected, the transmission data are to data acquisition slave plate one-way transmission from sensor;
(2) have through the CAN bus between data acquisition slave plate and data processing and the control main board and be electrically connected, the transmission data are from the data acquisition slave plate to data processing and the control main board one-way transmission;
(3) have between data processing and control main board and the acquisition system computing machine and be electrically connected, the transmission data are to acquisition system computing machine one-way transmission from data processing and control main board;
Described sensor comprises at least: monomer voltage sensor, monomer temperature sensor, total voltage sensor, total current sensor, room temperature and ECU temperature sensor; The monomer temperature sensor is assigned in the air channel between battery cell; Current sensor is installed in battery case top, passes the copper bar that is serially connected on the power line.
The present invention has realized each item key property of Vehicular battery system is tested the experimental study function of examination, has very high novelty.It has possessed the ability that battery charge and discharge process is accurately controlled, and also possesses the estimation of battery charge state (SOC) simultaneously, the battery system efficiency test, and the battery system internal resistance is measured, functions such as battery system life test.Especially, this system can test the performance parameter of each battery cell easily, and quick and convenient record data.In the use of reality, demonstrated good performance.
Description of drawings
Fig. 1 is the systematic functional structrue block diagram of Vehicular battery system test research system.
Fig. 2 is the composition structural drawing of Vehicular battery system test research system.
Fig. 3 is a Vehicular battery test principle block diagram.
Embodiment
The Vehicular battery experimental study system that the present invention relates to can be divided into three sub-systems: Vehicular battery system, Vehicular battery test macro, Vehicular battery load system.
Vehicular battery system test research system is based on Arbin battery charging and discharging pilot system and makes up and to form, and this battery charging and discharging pilot system comprises hardware and software two parts.
Hardware device is an Arbin battery charging and discharging testing table; Software section is a MITS Pro control system; Utilize the operation of this system control battery charging and discharging testing table, just can on this testing table, realize following function: the constant voltage of battery different multiplying constant current charge-discharge, the different voltage strengths of battery discharges and recharges, the discharging and recharging of the discharging and recharging of battery difference current changing rates, battery difference voltage build-up rates or rate of descent, battery operating mode cycle charge-discharge etc.The realization of these functions is most important for the performance characteristics of research battery.More than, Arbin battery charging and discharging testing table and MITS Pro control system have constituted the Vehicular battery load system.
Usually Vehicular battery is formed by the cell series connection in groups, in addition, except the electric battery of main body, also need comprise relevant electrical equipment link, relay, emergency stop switch, impact switch etc.
The Vehicular battery system is the research object of test, but the experimental study system has comprised the Vehicular battery system also.This is and protection test personnel's normal owing to the connection that in process of the test, will guarantee battery a handling safety, and test cell must comprise some external attached parts necessarily.The relay of electric battery and periphery, emergency stop switch, impact switch, power splicing ear etc. have constituted the main research object one Vehicular battery system of experimental study system.In addition, experimental study system also comprises a system that is used for signal, data acquisition and record.Signal, data acquisition system (DAS) mainly are used for the various useful semaphore in the acquisition test process, and to these signals handle, supervision and record.The main composition of this system comprises: various electrical quantity sensors, signal acquiring board, data monitoring register system.This system is called as the Vehicular battery test macro in the present invention.In the total system, the Vehicular battery system is as the object of experimental study.Connect through power leads between Vehicular battery system and the Vehicular battery load system; In the charging test, Vehicular battery load system output power is given Vehicular battery, and in discharge test, energy stream is reverse, provides electric power to export to load system by Vehicular battery.By the load system that Arbin battery charging and discharging testing table and MITS Pro control system are formed, not only can be used as electric current and the voltage requirements of load system simulated battery in real work, working condition that also can monitoring battery.Therefore, in the experimental study system, it also takes on a part of test assignment.Communication is through the CAN bus between Vehicular battery test macro and the Vehicular battery system, and this system is the important component part in the Experimental Study System.
The situation of each subsystem:
The Vehicular battery load system:
Mainly comprise Arbin battery charging and discharging testing table and MITS Pro control system.The test battery system links to each other with Arbin battery charging and discharging testing table through power line; Arbin battery charging and discharging testing table links to each other with MITS Pro control system through Serial Port Line.Its function is mainly accomplished by Arbin battery charging and discharging testing table and its control system MITS Pro control system.The voltage or the electric current of MITS Pro control system control battery charging and discharging are with the working condition of simulated battery in true environment.The battery charging and discharging testing table also has 8 road monomer voltages to measure passage and 4 tunnel temperature survey passages, can realize the monitoring to the monomer data, and get off data automatic recording.
The Vehicular battery system:
Mainly comprise in groups and through the test cell of overbalance, the positive and negative electrode relay of control battery electric power output, control guarantees the pre-charge-relay of charging safety, the emergency stop switch and the impact switch of protection handling safety.The Vehicular battery system will guarantee to have preferably with other system and be connected, and will guarantee battery system self and operating personnel's safety at the trial.
The Vehicular battery test macro:
Mainly comprise monomer voltage, temperature sensor, total voltage, current sensor, temperature sensor, signal acquiring board, signal Processing control panel, industrial computer, data monitoring register system.The monomer temperature sensor is assigned in the air channel between battery cell; Current sensor is installed in battery case top, passes the copper bar that is serially connected on the power line.The signal wire of each sensor all is connected on the signal acquiring board, and signal acquiring board transfers signals to the signal Processing control panel, passes through the CAN bus transfer afterwards to industrial computer.Being installed in data monitoring register system on the industrial computer is converted into the data presentation that can supply read with the signal on the CAN line and comes out.
To sum up; Have following logical relation between 3 sub-systems of this Experimental Study System: the Vehicular battery load system carries out various forms to battery and discharges and recharges; And can simulate battery operating condition onboard, it directly controls the working condition of Vehicular battery system; The Vehicular battery system is the main body of research, and it is again the controlling object of Vehicular battery load system and charging or the discharge that the Vehicular battery load system cooperates the realization battery, i.e. the inflow of energy or outflow; The Vehicular battery test macro is to be used for the data of Vehicular battery system are gathered and monitored, and its existence can not produce any influence to other two sub-systems, and other two sub-systems can not receive any information there from the Vehicular battery test macro.Logical relation between this three sub-systems function makes this experimental study possess integrality on the function.The present invention has realized each item key property of Vehicular battery system is tested the experimental study function of examination, has very high novelty.It has possessed the ability that battery charge and discharge process is accurately controlled, and also possesses the estimation of battery charge state (SOC) simultaneously, the battery system efficiency test, and the battery system internal resistance is measured, functions such as battery system life test.Especially, this system can test the performance parameter of each battery cell easily, and quick and convenient record data.In the use of reality, demonstrated good performance.
With reference to the accompanying drawings, will be described in detail specific embodiments of the present invention.
Like Fig. 1, provided the systematic functional structrue figure of Vehicular battery system test research system.Total system can be divided into three sub-systems: Vehicular battery load system, Vehicular battery system and Vehicular battery test macro.The flow direction relation of the information interaction among the figure between each system of the direction indication of arrow.As shown in Figure 1, discharge and recharge instruction issuing to Vehicular battery load system for battery.The Vehicular battery load system is the load as test cell, is also undertaking the responsibility of controlling test process and collecting part test figure simultaneously.Its receives the control information that host computer transmits through Serial Port Line, and information is translated as required voltage and the working current of battery that is added on the battery; Simultaneously, voltage, the electric current of monitoring battery.The function of Vehicular battery test macro is in the experimental study process, and each item basic parameter of Vehicular battery is measured, and gathers cell voltage, electric current, temperature, the state-of-charge of estimating battery (SOC), and the data that obtained are handled and record.
Like Fig. 2, provided the composition structure of Vehicular battery system test research system, at length represented the formation situation of experimental study system, layout and the connection situation of various device in system.Exist communication to connect between MITS Pro control system and the Arbin battery charging and discharging testing table, MITS Pro control system output control signal is given Arbin battery charging and discharging testing table.Connect with the power connecting line between battery system that is used to test and the Arbin battery charging and discharging testing table, on connecting line, be connected to the relay of holding circuit safety.Exist signal between data acquisition system (DAS) and the battery system that is used to test and connect, the one-sided information that receives the battery system that is used to test of data acquisition system (DAS).
Vehicular battery test principle block diagram as shown in Figure 3, it has represented the composition structure of Vehicular battery test macro.As can be seen from the figure, this system comprises four ingredients: sensor or other measurement mechanisms, data acquisition slave plate, data processing and control main board, acquisition system computing machine.Various sensors mainly are distributed in the electric battery; The sensor wiring all is connected respectively to four blocks of data through connector and gathers on the slave plate; Gather slave plate for four and signal is transferred to data processing and control main board through the CAN bus; Be responsible for battery charge state (SOC) estimation by data processing and control main board, electric current, voltage, temperature survey correction are sent to acquisition system computing machine according to certain agreement with the mode of CAN bus communication with data then.The data monitoring register system software of writing with LabVIEW is installed on the acquisition system computing machine; Software will receive to such an extent that the CAN signal is decoded according to communications protocol; Each item basic parameter of measured test cell is showed through forms such as charts, and be recorded in automatically in the Excel form.
Claims (4)
1. a Vehicular battery system test research system is characterized in that, it is made up of Vehicular battery load system, Vehicular battery system, Vehicular battery test macro three each and every one subsystems;
The Vehicular battery load system is used for the battery of Vehicular battery system is discharged and recharged, and can simulate and directly control the working condition of Vehicular battery system to battery operating condition onboard;
Vehicular battery system and Vehicular battery load system cooperate charging or the discharge that realizes battery;
The Vehicular battery test macro is to be used for the data of Vehicular battery system are gathered and monitored.
2. Vehicular battery system test research as claimed in claim 1 system; It is characterized in that the described form that discharges and recharges comprises one of following or combination: the constant voltage of battery different multiplying constant current charge-discharge, the different voltage strengths of battery discharges and recharges, the discharging and recharging of the discharging and recharging of the different current changing rates of battery, the different voltage build-up rates of battery or rate of descent, battery operating mode cycle charge-discharge.
3. Vehicular battery system test research as claimed in claim 1 system is characterized in that described Vehicular battery load system comprises Arbin battery charging and discharging testing table and MITS Pro control system; Battery plus-negative plate has through power line and is electrically connected in Arbin battery charging and discharging testing table in the Vehicular battery load system and the Vehicular battery system; Have through the data acquisition line between the data acquisition slave plate of the battery cell of Vehicular battery system and Vehicular battery test macro and be electrically connected.
4. according to the described Vehicular battery system test research of claims 1 system, it is characterized in that its Vehicular battery test macro comprises four ingredients: sensor, data acquisition slave plate, data processing and control main board and acquisition system computing machine;
(1) have between sensor and the data acquisition slave plate and be electrically connected, the transmission data are to data acquisition slave plate one-way transmission from sensor;
(2) have through the CAN bus between data acquisition slave plate and data processing and the control main board and be electrically connected, the transmission data are from the data acquisition slave plate to data processing and the control main board one-way transmission;
(3) have between data processing and control main board and the acquisition system computing machine and be electrically connected, the transmission data are to acquisition system computing machine one-way transmission from data processing and control main board;
Described sensor comprises at least: monomer voltage sensor, monomer temperature sensor, total voltage sensor, total current sensor, room temperature and ECU temperature sensor; The monomer temperature sensor is assigned in the air channel between battery cell; Current sensor is installed in battery case top, passes the copper bar that is serially connected on the power line.
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| CN103675686A (en) * | 2012-09-21 | 2014-03-26 | 华北电力大学 | Electric vehicle power battery charging and discharging operating condition simulation system and method |
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| CN104459553A (en) * | 2014-11-28 | 2015-03-25 | 上海交通大学 | Method and system for forecasting battery efficiency and health condition of electric vehicle |
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| CN102736035A (en) * | 2012-07-03 | 2012-10-17 | 奇瑞汽车股份有限公司 | Power battery durability test method and system |
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| CN103257319A (en) * | 2013-04-25 | 2013-08-21 | 浙江天能电池江苏新能源有限公司 | Valve regulated lead storage battery pack service life detection method and detection device |
| CN103257319B (en) * | 2013-04-25 | 2015-10-28 | 浙江天能电池江苏新能源有限公司 | A kind of valve-regulated lead-acid battery group life detecting method and pick-up unit |
| CN104076294A (en) * | 2014-07-11 | 2014-10-01 | 上海工程技术大学 | Load device for testing battery performance of electric vehicle |
| CN104076294B (en) * | 2014-07-11 | 2017-02-01 | 上海工程技术大学 | Load device for testing battery performance of electric vehicle |
| CN104459553A (en) * | 2014-11-28 | 2015-03-25 | 上海交通大学 | Method and system for forecasting battery efficiency and health condition of electric vehicle |
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| CN110854452B (en) * | 2019-11-11 | 2021-04-23 | 北京理工大学 | Battery pack temperature management system of pure electric vehicle |
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Application publication date: 20120620 |