CN102073017B - Intelligent testing platform of battery management system and testing method - Google Patents
Intelligent testing platform of battery management system and testing method Download PDFInfo
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Abstract
The present invention provides an intelligent testing platform of a battery management system and a testing method. The platform comprises a battery management module, a voltage control module, a current control module, a temperature output control module, a processor control module, an input/output control module, a communication module and an upper computer module; and the battery management module, the voltage control module, the current control module, the input/output control module and the communication module are respectively connected with the processor control module, and data communication is carried out between the upper computer module and the processor module through the communication module. The testing module can truly simulate a power battery to accurately test the function and accuracy of the battery management system, and can also simulate environmental impact to test extreme conditions of the battery management system, so that simpler and rapider platform testing can be achieved, and the testing platform can serve as a foundation and guarantee for mass production of the battery management system.
Description
Technical field
The invention belongs to the electrokinetic cell field of hybrid vehicle, relate in particular to a kind of detection means of battery management system.
Background technology
Along with the whole world to energy-conservation and enhancing environmental consciousness, the development trend of hybrid vehicle is increasing.Power battery pack is the critical component of hybrid vehicle, needs battery management system that it is monitored in real time.Whether the function to battery management system meets actual requirement, must verify it, thereby in time find the defective of battery management system, has an accident when avoiding the car load operation.Therefore, in the research of hybrid vehicle, design a kind of economy, effectively battery management system functional verification platform has important meaning.
Pair associated description of battery management system functional verification platform is arranged in existing patent; Like practical New Name is the pick-up unit that this patent of patent (patent No. ZL200520121096.3) of a kind of pick-up unit of power battery management system discloses a kind of power battery group management system; Comprise: power management module, voltage control module, current control module, temperature output control module, processor control module, I/O control module, communication module and upper computer module; Said power management module, voltage control module, current control module, temperature output control module, I/O control module and communication module are connected with the processor control module respectively, and upper computer module is carried out various data communication through communication module and processor module simultaneously.This utility model can be simulated and produce all input signals of power battery management system, makes things convenient for the testing staff that power battery management system is detected, and realizes the function that the power battery group management system is diagnosed; Like practical New Name is the patent (patent No. ZL200720121933.1) of battery manager test platform; Be to accept to detect data and director data and be transferred to the MCU control module in this patent through IO digital signal input detection unit, CAN network data input analytic unit, CAN network instruction input analytic unit; Through sending it to simulating signal output unit and CAN network information output unit after the processing of MCU control module; In order to simulate various signals in battery management system, realize the management system functional verification.
Summary of the invention
The objective of the invention is to deficiency to the prior art existence; A kind of battery management system Intelligent Measurement platform and method are proposed; Make it can the real simulation electrokinetic cell, check the function and the precision of battery management system accurately, can the simulated environment influence; Battery management system is carried out maximum conditions tests, the test process of platform is oversimplified, rapid.Let test platform become the basis and the guarantee of battery management system volume production.
Be to realize above-mentioned purpose, the present invention is according to the technical conditions and the principle of work of battery management system, design optimization the multiple module scheme of intelligence test platform:
1, the scheme that the power adaptation of battery management system is detected in the power management module;
2, the signal of the electrokinetic cell single-unit voltage in the voltage control module produces the monitoring scheme, the electrokinetic cell total voltage signal that reach the single-unit voltage detection module of battery management system and produces the monitoring scheme that reaches the total voltage detection module of battery management system;
3, the electrokinetic cell total current signal in the current control module produces the monitoring scheme, the power battery charging current signal that reach the total current detection module of battery management system and produces the monitoring scheme that reaches the charging current detection module of battery management system;
4, the detection scheme in the temperature output control module to the thermal module of battery management system;
5, in the input/output module to the detection scheme of the real-time clock module of battery management system with to the monitoring scheme of the relay control module of battery management system;
6, CAN communication interface in the communication module and communication protocol scheme;
7, PC ipc monitor in the upper computer module and interface scheme.
Analyze the characteristics of each module, consider their general character and difference, they are reasonably made up, reduce the redundancy of system, improve integrated level, form complete system platform at last.
Intelligent Measurement platform of the present invention comprises power management module, voltage control module, current control module, temperature output control module, processor control module, I/O control module, communication module and upper computer module; Said power management module, voltage control module, current control module, I/O control module and communication module are connected with the processor control module respectively, and upper computer module is carried out data communication through communication module and processor module simultaneously.
Said power management module is except that directly supplying power to other all modules the upper computer module, and this module is also directly supplied power to equipment to be tested (being battery management system) simultaneously; Various direct supplys and signal that this module provides other modules and equipment to be tested to need, the power supply that wherein offers equipment to be tested can Automatic Cycle be adjusted between 6V-18V, in order to detect the supply voltage adaptability of equipment to be tested.
Said voltage control module is connected with processor module; The control command of receiving processor; Export correspondent voltage signal through D/A converting circuit to equipment under test according to command context then; And then through the data back processor that record voltage signal of communication module with equipment under test, whether normal through analyzing these data if can obtain the voltage acquisition module of equipment under test, and then accomplish the detection of equipment under test voltage module; The voltage signal of voltage control module output can dispose arbitrarily through the PC monitoring interface within certain range of voltage values in addition, and voltage control module self is also gathered this voltage signal, to confirm its realistic accuracy.
Said current control module is connected with processor module; The control command of receiving processor; Export corresponding current signal through D/A converting circuit to equipment under test according to command context then; And then through the data back processor that record current signal of communication module with equipment under test, whether normal through analyzing these data if can obtain the current acquisition module of equipment under test, and then accomplish the detection of equipment under test current module; The current signal of current control module output can dispose arbitrarily through the PC monitoring interface within certain current value range in addition, and current control module self is also gathered this current signal, to confirm its realistic accuracy.
Said temperature output control module directly is connected with equipment under test; Need not the control command of receiving processor; Directly it is controlled by equipment under test; Said detection platform is through the data back processor that record temperature signal of communication module with equipment under test, and whether normal through analyzing these data if can obtain the temperature collect module of equipment under test, and then accomplishes the detection of equipment under test temperature collect module.
Said processor module also carries out integrated management and control to other modules except that with upper computer module directly links to each other, and reads the duty and the data of each module, controls the operation that corresponding module is carried out appointment simultaneously; In addition, processor module also carries out data processing, resolves the order that host computer issues through communication module, and operation result is uploaded to the host computer display interface through communication module.
Said I/O control module is connected with processor module, receives the I/O signal of equipment under test and sends processor to, and the order of receiving processor is simultaneously sent the I/O signal to equipment under test; This module is accomplished opening and closing of some simple switching signal communications or switch.
Said communication module is made up of with serial communication CAN communication, and the CAN communication link is connected between processor module and the equipment under test, and serial communication is connected between processor module and the upper computer module, and this module is responsible for all data transfer.
Said upper computer module links to each other with processor module through the serial ports of communication module, is used for all signal datas that the video-stream processor module is uploaded, and issues control command and the data of user to test platform.
The method of utilizing above battery management system Intelligent Measurement platform to detect; It is a voltage adaptation ability of utilizing the cycle power check power module of 6V-18V; Provide multichannel single battery voltage signal, one tunnel total voltage signal and current signal with check voltage acquisition module and current acquisition module to battery management system; Check the insulation monitoring module of battery management system through the insulativity of commutation circuit in turn; At last through with the CAN network service sending filter and HANDSHAKE (handshake) control command of battery management system and the detection data that receive each module of battery management system to analyze the overall operation state of battery management system; Accomplish the check of battery management system, realize the real simulation electrokinetic cell, check the function and the precision of battery management system accurately.
Test item comprises the detection to following functional module in the said detection method: cell voltage control module, the total voltage of detection battery; Current control module detects the battery total current; The temperature output control module, the temperature of detection battery; Each functional module is transferred to processor with detected signal through communication module, and the signal that semaphore that processor obtains and host computer send compares, to confirm realistic accuracy.
Compared with present technology, the invention has the advantages that:
1, the present invention is centralized verifying bench, and promptly native system all covers all functions of battery management system fully, and each item functional parameter that can a product of rapid comprehensive and accurate check has improved the quality inspection efficient of battery management system in the production phase.
2, the present invention can the real electrical installation environment of simulated battery management system, and power supply is convenient, and safe no personnel get an electric shock and danger such as battery failures, convenient battery management system is carried out various environmental tests and electromagnetism is tested.
3, the present invention can through the monitoring interface on the PC, keep watch on and control battery management system comprehensively through the linking of platform and PC easily, and the keeping records test data, for reviewing reference.
To sum up; This detection platform can the real simulation electrokinetic cell; Check the function and the precision of battery management system accurately, can simulated environment influence, battery management system is carried out the maximum conditions test; The test process of platform is oversimplified, rapid, let test platform become the basis of battery management system volume production and ensure.
Description of drawings
Fig. 1 detects tactful general structure block diagram for the battery management system Intelligent Measurement platform that the present invention proposes;
The battery management system Intelligent Measurement console module voltage acquisition principle schematic that Fig. 2 proposes for the present invention;
The battery management system Intelligent Measurement platform voltage output module principle schematic that Fig. 3 proposes for the present invention;
The battery management system Intelligent Measurement platform total current acquisition principle synoptic diagram that Fig. 4 proposes for the present invention.
Embodiment
Fig. 1 is a battery management system Intelligent Measurement platform detection method general structure block diagram.Platform is at first to the continual and steady battery simulating signal of battery management system output; Comprise plurality of voltages signal, current signal and temperature signal; Whether the order that issues according to PC (host computer) monitoring interface then determines to battery management system write time data; Periodically pass through the CAN network afterwards to the battery management system transmitting control commands; Make battery management system periodically transmit the data of each module, comprise electric current and voltage temperature and clock data and the insulation relay status data of shaking hands, for the integrality of analysis battery management system to detection platform.Again analysis is obtained all data upload to the PC monitoring interface at last.
Below in conjunction with accompanying drawing the main signaling module of native system is described further.
Fig. 2 and Fig. 3 are the voltage control module principle schematic, and voltage control module is made up of voltage acquisition module, voltage output module etc.
Fig. 2 is a module voltage acquisition principle synoptic diagram, and the module voltage signal is produced by detection platform, detects this signal through DSP, through sending to the voltage output module behind modulus DAC, operational amplification circuit, the digital-to-analogue adc circuit.
Fig. 3 module voltage output principle synoptic diagram; Adhesive and disconnection that this module is come pilot relay through HV/12V, and then produce circuit switching in turn, with each module voltage output; And each voltage signal is sent to the processor control module through communication module; Between setting voltage, can dispose arbitrarily through the PC monitoring interface, self also gathers this external system this voltage signal, to confirm its realistic accuracy.
Fig. 4 is the current control module principle schematic; The total current signal is produced by detection platform; Detect this signal through DSP, send to the processor control module behind process modulus DAC, electric resistance partial pressure, operational amplification circuit, the digital-to-analogue adc circuit, and setting between the electric current and can dispose arbitrarily through the PC monitoring interface; Self also gathers this external system this current signal, to confirm its realistic accuracy.
Simultaneously, battery management system Intelligent Measurement platform is also tested to the data communication and the data storage of battery management system.With the core devices of guaranteeing battery management system and the correct running of software.
Claims (3)
1. battery management system Intelligent Measurement platform, it is characterized in that: said Intelligent Measurement platform comprises power management module, voltage control module, current control module, temperature output control module, processor control module, I/O control module, communication module and upper computer module; Said power management module, voltage control module, current control module, I/O control module and communication module are connected with the processor control module respectively, and upper computer module is carried out data communication through communication module and processor control module simultaneously;
Said power management module is except that directly supplying power to other all modules the upper computer module, and this module also to equipment to be tested, promptly directly supply power by battery management system simultaneously; Various direct supplys and signal that this module provides other modules and equipment to be tested to need wherein offer power supply Automatic Cycle adjustment between 6V-18V of equipment to be tested, in order to detect the supply voltage adaptability of equipment to be tested;
Said voltage control module is connected with the processor control module; The control command of receiving processor control module; Export correspondent voltage signal through D/A converting circuit to equipment under test according to command context then; And then through the data back processor control module that record voltage signal of communication module with equipment under test, whether normal through analyzing these data if can obtain the voltage acquisition module of equipment under test, and then accomplish the detection of equipment under test voltage acquisition module; The voltage signal of voltage control module output can dispose arbitrarily through the PC monitoring interface within certain range of voltage values in addition, and voltage control module self is also gathered this voltage signal, to confirm its realistic accuracy;
Said current control module is connected with the processor control module; The control command of receiving processor control module; Export corresponding current signal through D/A converting circuit to equipment under test according to command context then; And then through the data back processor control module that record current signal of communication module with equipment under test, whether normal through analyzing these data if can obtain the current acquisition module of equipment under test, and then accomplish the detection of equipment under test current acquisition module; The current signal of current control module output can dispose arbitrarily through the PC monitoring interface within certain current value range in addition, and current control module self is also gathered this current signal, to confirm its realistic accuracy;
Said temperature output control module directly is connected with equipment under test; Need not the control command of receiving processor control module; Directly it is controlled by equipment under test; Said detection platform is through the data back processor control module that record temperature signal of communication module with equipment under test, and whether normal through analyzing these data if can obtain the temperature collect module of equipment under test, and then accomplishes the detection of equipment under test temperature collect module;
Said processor control module is also carried out integrated management and control to other modules except that with upper computer module directly links to each other, and reads the duty and the data of each module, controls the operation that corresponding module is carried out appointment simultaneously; In addition, the processor control module is also carried out data processing, resolves the order that host computer issues through communication module, and operation result is uploaded to the host computer display interface through communication module;
Said I/O control module is connected with the processor control module, receives the I/O signal of equipment under test and sends the processor control module to, and the order of receiving processor control module is simultaneously sent the I/O signal to equipment under test; This module is accomplished opening and closing of some simple switching signal communications or switch;
Said communication module is made up of with serial communication CAN communication, and the CAN communication link is connected between processor control module and the equipment under test, and serial communication is connected between processor control module and the upper computer module, and this module is responsible for all data transfer;
Said upper computer module links to each other with the processor control module through the serial ports of communication module, is used for all signal datas that the video-stream processor control module is uploaded, and issues control command and the data of user to test platform.
2. the method for utilizing the described battery management system Intelligent Measurement of claim 1 platform to detect; It is characterized in that; Detection platform at first to the continual and steady battery simulating signal of battery management system output, comprises plurality of voltages signal, current signal and temperature signal, and whether the order that issues according to the ipc monitor interface then determines to battery management system write time data; Periodically communicate by letter to the battery management system transmitting control commands afterwards through CAN; Make battery management system periodically transmit the data of each module, comprise electric current and voltage temperature and clock data and the insulation relay status data of shaking hands, for the integrality of analysis battery management system to detection platform; Again analysis is obtained all data upload to the ipc monitor interface at last; Accomplish the check of battery management system, realize the real simulation electrokinetic cell, check the function and the precision of battery management system accurately.
3. the method that battery management system Intelligent Measurement platform according to claim 2 detects, it is characterized in that: test item comprises the detection to following functional module in the said detection method: voltage control module, the total voltage of detection battery; Current control module detects the battery total current; The temperature output control module, the temperature of detection battery; Each functional module is transferred to the processor control module with detected signal through communication module, and the signal that semaphore that the processor control module obtains and host computer send compares, to confirm realistic accuracy.
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