CN102375126A - Method, device and system for detecting battery pack sampling module - Google Patents
Method, device and system for detecting battery pack sampling module Download PDFInfo
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- CN102375126A CN102375126A CN2011102840467A CN201110284046A CN102375126A CN 102375126 A CN102375126 A CN 102375126A CN 2011102840467 A CN2011102840467 A CN 2011102840467A CN 201110284046 A CN201110284046 A CN 201110284046A CN 102375126 A CN102375126 A CN 102375126A
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Abstract
The invention relates to a method, device and system for detecting a battery pack sampling module. The method comprises the following steps of: setting the analog voltage value and analog temperature value of a tested battery pack sampling module by using a host; generating corresponding control command signals for the set analog voltage value and analog temperature value; and instructing to control and output a voltage value and a temperature value for the tested battery pack sampling module to acquire by using the control command signals generated for the set analog voltage value and analog temperature value respectively. The detection device or system comprises a host unit, a singlechip unit, a CAN (Controller Area Network) communication unit, a signal driving unit, an analog voltage unit, an analog temperature unit and a power supply unit for supplying power to each unit. According to the device or the system, high-accuracy loadable voltage and temperature are output in a simulative way for the battery group sampling module to sample, and a sampled value of the battery group sampling module is compared with an output value of the detection device or the detection system, so that qualification of the battery group sampling module can be tested, the detection accuracy is high, and the cost is low.
Description
Technical field
The present invention relates to the electric battery detection range; More particularly; Relate to a kind of electric battery sampling module detection method, device and system thereof; This detection method or pick-up unit can be used as single electric battery sampling module pick-up unit, also can form detection system according to the battery Scheme Choice cascade number of actual production by the user and carry out integrated testability, can be widely used in the electric battery integrated test system.
Technical background
At present; Power accumulator is when being used for purposes such as electric automobile; Usually all be that cell is formed with the mode of series connection; Overtension or low excessively, battery short circuit, the temperature that may occur certain joint cell are in use crossed high phenomenon; Whether these problems all will have influence on the normal use of battery pack, and whether the voltage that power battery management system is now controlled the power accumulator group through voltage, temperature acquisition is exported, before the power battery management system entrucking is used, need voltage, the temperature value of its sampling of detection accurate so; This comes it is detected with regard to the device that needs accurate output voltage of a kind of ability and temperature, and this invention provides this device.
Summary of the invention
In order to realize that accurate detection, reduction to the electric battery sampling module detect cost; The embodiment of the invention provides and has been applicable to that a kind of exportable high precision band live that the electric battery sampling module detects presses the electric battery sampling module pick-up unit with temperature, can when production, make effective judgement to the quality of product.
The present invention provides a kind of electric battery sampling module detection method on the one hand, and said detection method comprises:
The analog voltage and the analog temperature value of the electric battery sampling module of surveying are set through host computer;
Set analog voltage and analog temperature value are generated the control instruction corresponding signal respectively;
The control command signal that is generated by analog voltage and analog temperature value instruction control and output respectively supplies the magnitude of voltage and the temperature value of the institute's electric battery sampling module of surveying collection;
Magnitude of voltage that the electric battery sampling module of surveying is collected and temperature value are uploaded to host computer and show, settings through the contrast host computer and displayed value judge whether survey the electric battery sampling module qualified.
On the other hand, the present invention provides a kind of electric battery sampling module pick-up unit, and said technical scheme is following:
A kind of electric battery sampling module pick-up unit, said pick-up unit is with the institute's electric battery sampling module of surveying connection, and whether be used to detect the electric battery sampling module qualified, and said pick-up unit comprises:
The host computer unit with the institute's electric battery sampling module of surveying connection, is used to set and handle single-unit or more piece magnitude of voltage, the temperature value of the electric battery sampling module of surveying;
Communication unit connects with said host computer unit, realizes the information communication with the host computer unit;
Single machine unit is carried out information communication through communication unit with said host computer unit, and exports the set voltage in said host computer unit, the control signal of temperature value.
Signal driving unit is used for requiring the magnitude of voltage of simulation, temperature value to generate the control instruction corresponding signal according to the control signal that said single machine unit is exported, and the said control command signal of correspondence is flowed to follow-up unit;
The aanalogvoltage unit, receive that said signal driving unit exports by the control command signal that analog voltage generated, and output one band in the said aanalogvoltage of instruction control unit carries a magnitude of voltage;
The analog temperature unit; The control command signal that is generated by the analog temperature value that receives that said signal driving unit exports; And the temperature value of host computer unit setting is calculated to be corresponding voltage value, control said analog temperature unit output corresponding voltage value through signal driving unit output control command signal.
Power supply unit is electrically connected with said aanalogvoltage unit, analog temperature unit, single machine unit and signal driving unit respectively, is used to above-mentioned said unit power supply;
Through to after the electric battery sampling module sample detecting, institute is surveyed magnitude of voltage transfers to host computer with temperature value through communication unit and show, can detect behind setting value through contrasting host computer and the displayed value whether survey the electric battery sampling module qualified.
Said aanalogvoltage unit comprises switch, DAC chip, insulating power supply chip, reference power supply chip and the follow circuit that photoelectrical coupler is formed;
Said reference power supply chip is supplied with reference voltage of said DAC chip; The magnitude of voltage of host computer unit setting sends control signal after being uploaded to single machine unit; And after signal driving unit the input said photoelectrical coupler front end, the power supply that the insulating power supply chip provides is imported the end of said photoelectrical coupler, during the photoelectrical coupler conducting; Signal controlling DAC chip after the isolation is exported a voltage, and carries out exporting after electric current amplifies a band live through follow circuit and press.
Said analog temperature unit comprises switch, DAC chip, reference power supply chip and the follow circuit that photoelectrical coupler is formed;
The reference power supply chip offers reference voltage of DAC chip; The temperature value of host computer unit setting sends control signal after conversion in single machine unit; The front end of input optocoupler after signal driving unit; When the photoelectrical coupler conducting, the signal controlling DAC chip of output is exported a voltage, and carries out exporting a respective value after electric current amplifies through follow circuit.
During said photoelectrical coupler conducting, the voltage of the signal controlling DAC chip of its output output 0-5000mv.
The direct current that said power supply unit provided divides duplex feeding,
One road electricity is given single machine unit, signal driving unit power supply through converting the 5V power supply into;
Another road electricity is given said reference power supply chip, insulating power supply chip power supply through converting the 5V power supply into.
In addition; The present invention provides a kind of electric battery sampling module detection system; Said detection system is made up of many set detecting devices, and the electric battery sampling module of surveying is provided with many groups, and said pick-up unit connects one to one with the electric battery sampling module of surveying; Be connected in series through wire harness between the said pick-up unit of many groups, organize said pick-up unit and electric battery sampling module more and realize information transmission with the host computer unit through communication unit.
The beneficial effect of the technical scheme that the embodiment of the invention provides is:
The present invention can be used as not only independently that pick-up unit detects single battery group sampling module, can a plurality of pick-up units be detected a plurality of electric battery sampling modules through being composed in series detection system.
The present invention can be with live to press through the high precision that will simulate output and Temperature Feedback is given the host computer unit; Through electric battery sampling module sampled value and pick-up unit setting value are compared; Whether can measure the electric battery sampling module qualified; If the two numerical value deviation is being confirmed as specification product less than 1%, otherwise be substandard product, its accuracy of detection is high, the detection cost is low.
Description of drawings
In order to be illustrated more clearly in the technical scheme in the embodiment of the invention; The accompanying drawing of required use is done to introduce simply in will describing embodiment below; Obviously, the accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills; Under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is that structure of the present invention connects block diagram;
Fig. 2 is the electric diagram of electric battery sampling module pick-up unit of the present invention;
Fig. 3 is signal driving unit circuit theory diagrams of the present invention;
Fig. 4 is the aanalogvoltage unit electrical diagram among the present invention;
Fig. 5 is the analog temperature element circuit schematic diagram among the present invention;
Fig. 6 is an electric battery sampling module detection system electric diagram of the present invention.
Embodiment
For making the object of the invention, technical scheme and advantage clearer, will combine accompanying drawing that embodiment of the present invention is done to describe in detail further below.The detection method that is wherein adopted comprises: analog voltage and analog temperature value that the electric battery sampling module of surveying is set through host computer; Set analog voltage and analog temperature value are generated the control instruction corresponding signal respectively; The control command signal that is generated by analog voltage and analog temperature value instruction control and output respectively supplies the magnitude of voltage and the temperature value of the institute's electric battery sampling module of surveying collection; Magnitude of voltage that the electric battery sampling module of surveying is collected and temperature value are uploaded to host computer and show, settings through the contrast host computer and displayed value judge whether survey the electric battery sampling module qualified.
As depicted in figs. 1 and 2, the present invention includes host computer unit, single machine unit, communication unit, signal driving unit, aanalogvoltage unit, analog temperature unit and be used for power supply unit to above-mentioned each unit power supply.The host computer unit, with single machine unit and the electric battery sampling module of surveying connect, be used to set and handle single-unit or more piece magnitude of voltage, the temperature value of the electric battery sampling module of surveying;
Communication unit connects with host computer, realizes the information communication with host computer;
Single machine unit is carried out information communication through communication unit with said host computer unit, and exports the voltage of host computer unit setting, the control signal of temperature value;
Signal driving unit; Be used for requiring the magnitude of voltage of simulation, temperature value to generate the control corresponding command signal, and said control command signal is flowed to said aanalogvoltage unit and analog temperature unit respectively according to the control signal that said single machine unit is exported;
Power supply unit is connected with said aanalogvoltage unit, analog temperature unit, single machine unit and signal driving unit respectively, is used to above-mentioned said unit power supply;
Through to after the electric battery sampling module sample detecting, institute is surveyed magnitude of voltage transfers to host computer with temperature value through communication unit and show, can detect behind setting value through contrasting host computer and the displayed value whether survey the electric battery sampling module qualified.
Fig. 3 is signal driving unit circuit theory diagrams of the present invention; Its input signal is the control signal that single machine unit is exported; The corresponding control command signal that its output signal generates by magnitude of voltage, the temperature value of simulating according to institute's requirements, this control command signal are used for controlling and input to aanalogvoltage unit and analog temperature unit respectively.
The aanalogvoltage unit receive that signal driving unit exports by the control command signal that analog voltage generated, and output one band in the said aanalogvoltage of instruction control unit carries a magnitude of voltage; As shown in Figure 4, the aanalogvoltage unit has the output of 12 road voltages, is illustrated as one tunnel output block diagram, comprises switch, DAC chip, insulating power supply chip, reference power supply chip and follow circuit that photoelectrical coupler is formed.The reference power supply chip is supplied with reference voltage of said DAC chip; The magnitude of voltage of host computer unit setting sends control signal after being uploaded to single machine unit; And after signal driving unit the input said photoelectrical coupler front end, the power supply that the insulating power supply chip provides is imported the end of said photoelectrical coupler, during the photoelectrical coupler conducting; The voltage of signal controlling DAC chip output 0-5000mv after the isolation, and carry out exporting after electric current amplifies a band live through follow circuit and press.
The control command signal that is generated by the analog temperature value that the analog temperature unit receives that said signal driving unit exports; And the temperature value of host computer unit setting is calculated to be corresponding voltage value, control said analog temperature unit output corresponding voltage value through signal driving unit output control command signal.As shown in Figure 5, the analog temperature unit has 6 tunnel outputs, is illustrated as one road output principle figure, comprises switch, DAC chip, reference power supply chip and follow circuit that photoelectrical coupler is formed.The reference power supply chip offers reference voltage of DAC chip; The temperature value of host computer unit setting sends the front end of control signal input optocoupler after signal driving unit after conversion in single-chip microcomputer; When the photoelectrical coupler conducting; The signal controlling DAC chip of output is exported the voltage of 0-5000mv, and carries out exporting after electric current amplifies the value of a correspondence through follow circuit.
Power supply unit; Directly supply with the 12V direct supply by Switching Power Supply; Directly give the power supply of electric battery sampling module pick-up unit; Part 12V converts the 5V power supply into through power supply chip and gives single machine unit, signal driving unit power supply, and a part of 12V converts the 5V power supply into through the insulating power supply chip and gives reference power supply chip, insulating power supply chip power supply.
Shown in Figure 6 for detecting the detection system of a plurality of electric battery sampling modules after a plurality of pick-up unit cascades, its working method is described below:
According to produce to use desired battery joint number come this device of cascade can disposable detection entire cell bag in all electric battery sampling modules; Subtending port on each pick-up unit is coupled together with supporting wire harness; Connect all aanalogvoltage series connection of back; A plurality of electric battery sampling modules and a plurality of pick-up unit are connected one to one; Give each pick-up unit numbering through the host computer unit; On the host computer unit, set certain, certain some or all of voltage, temperature value, carry out Network Transmission through the CAN communication unit and give whole detection system, detection system receives back output and supplies the collection of corresponding battery group sampling module with setting voltage, the corresponding magnitude of voltage of temperature value; The electric battery sampling module is gathered its corresponding voltage value after the CAN Network Transmission shows to the host computer unit, and whether can detect the electric battery sampling module behind contrast setting value and the displayed value qualified.
Need to prove: electric battery sample detecting device and system thereof that the foregoing description provides only are illustrated with the division of above-mentioned each functional module; In the practical application; Can as required the above-mentioned functions distribution be accomplished by different functional; The inner structure of the equipment of being about to is divided into different functional, to accomplish all or part of function of above description.
Claims (7)
1. electric battery sampling module detection method is characterized in that said detection method comprises:
The analog voltage and the analog temperature value of the electric battery sampling module of surveying are set through host computer;
Set analog voltage and analog temperature value are generated the control instruction corresponding signal respectively;
The control command signal that is generated by analog voltage and analog temperature value instruction control and output respectively supplies the magnitude of voltage and the temperature value of the institute's electric battery sampling module of surveying collection;
Magnitude of voltage that the electric battery sampling module of surveying is collected and temperature value are uploaded to host computer and show, settings through the contrast host computer and displayed value judge whether survey the electric battery sampling module qualified.
2. electric battery sampling module pick-up unit, said pick-up unit is with the institute's electric battery sampling module of surveying connection, and whether qualified, it is characterized in that if being used to detect the electric battery sampling module, and said pick-up unit comprises:
The host computer unit with the institute's electric battery sampling module of surveying connection, is used to set and handle single-unit or more piece magnitude of voltage, the temperature value of the electric battery sampling module of surveying;
Communication unit connects with said host computer unit, realizes the information communication with the host computer unit;
Single machine unit is carried out information communication through communication unit with said host computer unit, and exports the set voltage in said host computer unit, the control signal of temperature value.
Signal driving unit is used for requiring the magnitude of voltage of simulation, temperature value to generate the control instruction corresponding signal according to the control signal that said single machine unit is exported, and the said control command signal of correspondence is flowed to follow-up unit;
The aanalogvoltage unit, receive that said signal driving unit exports by the control command signal that analog voltage generated, and output one band in the said aanalogvoltage of instruction control unit carries a magnitude of voltage;
The analog temperature unit; The control command signal that is generated by the analog temperature value that receives that said signal driving unit exports; And the temperature value of host computer unit setting is calculated to be corresponding voltage value, control said analog temperature unit output corresponding voltage value through signal driving unit output control command signal.
Power supply unit is electrically connected with said aanalogvoltage unit, analog temperature unit, single machine unit and signal driving unit respectively, is used to above-mentioned said unit power supply;
Through to after the electric battery sampling module sample detecting, institute is surveyed magnitude of voltage transfers to host computer with temperature value through communication unit and show, can detect behind setting value through contrasting host computer and the displayed value whether survey the electric battery sampling module qualified.
3. electric battery sampling module pick-up unit according to claim 2 is characterized in that, said aanalogvoltage unit comprises switch, DAC chip, insulating power supply chip, reference power supply chip and the follow circuit that photoelectrical coupler is formed;
Said reference power supply chip is supplied with reference voltage of said DAC chip; The magnitude of voltage of host computer unit setting sends control signal after being uploaded to single machine unit; And after signal driving unit the input said photoelectrical coupler front end, the power supply that the insulating power supply chip provides is imported the end of said photoelectrical coupler, during the photoelectrical coupler conducting; Signal controlling DAC chip after the isolation is exported a voltage, and carries out exporting after electric current amplifies a band live through follow circuit and press.
4. electric battery sampling module pick-up unit according to claim 2 is characterized in that, said analog temperature unit comprises switch, DAC chip, reference power supply chip and the follow circuit that photoelectrical coupler is formed;
The reference power supply chip offers reference voltage of DAC chip; The temperature value of host computer unit setting sends control signal after conversion in single machine unit; The front end of input optocoupler after signal driving unit; When the photoelectrical coupler conducting, the signal controlling DAC chip of output is exported a voltage, and carries out exporting a respective value after electric current amplifies through follow circuit.
5. according to claim 3 or 4 said electric battery sampling module pick-up units, it is characterized in that,
During said photoelectrical coupler conducting, the voltage of the signal controlling DAC chip of its output output 0-5000mv.
6. electric battery sampling module pick-up unit according to claim 5 is characterized in that,
The direct current that said power supply unit provided divides duplex feeding,
One road electricity is given single machine unit, signal driving unit power supply through converting the 5V power supply into;
Another road electricity is given said reference power supply chip, insulating power supply chip power supply through converting the 5V power supply into.
7. electric battery sampling module detection system; It is characterized in that; Said detection system is made up of the described pick-up unit of many groups claim 1-6, and the electric battery sampling module of surveying is provided with many groups, and said pick-up unit connects one to one with the electric battery sampling module of surveying; Be connected in series through wire harness between the said pick-up unit of many groups, organize said pick-up unit and electric battery sampling module more and realize information transmission with the host computer unit through communication unit.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103424709A (en) * | 2012-05-15 | 2013-12-04 | 瑞萨电子株式会社 | Semiconductor device and voltage measuring device |
| CN107797071A (en) * | 2017-10-25 | 2018-03-13 | 上海空间电源研究所 | A kind of anti-strong electromagnetic isolation sample circuit of space lithium-ions battery group |
| CN112731189A (en) * | 2021-01-26 | 2021-04-30 | 清华大学 | Battery pack simulation and BMS precision detection system |
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| CN101394096A (en) * | 2007-09-19 | 2009-03-25 | 比亚迪股份有限公司 | Battery pack simulating device |
| CN101509960A (en) * | 2008-11-20 | 2009-08-19 | 奇瑞汽车股份有限公司 | Battery voltage and temperature monitoring device |
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| CN101394096A (en) * | 2007-09-19 | 2009-03-25 | 比亚迪股份有限公司 | Battery pack simulating device |
| CN101187696A (en) * | 2007-12-19 | 2008-05-28 | 哈尔滨工业大学 | Power cell source test method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103424709A (en) * | 2012-05-15 | 2013-12-04 | 瑞萨电子株式会社 | Semiconductor device and voltage measuring device |
| CN107797071A (en) * | 2017-10-25 | 2018-03-13 | 上海空间电源研究所 | A kind of anti-strong electromagnetic isolation sample circuit of space lithium-ions battery group |
| CN112731189A (en) * | 2021-01-26 | 2021-04-30 | 清华大学 | Battery pack simulation and BMS precision detection system |
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Application publication date: 20120314 |