CN201804079U - Automobile circuit system and special storage battery analyzer - Google Patents
Automobile circuit system and special storage battery analyzer Download PDFInfo
- Publication number
- CN201804079U CN201804079U CN2010202746803U CN201020274680U CN201804079U CN 201804079 U CN201804079 U CN 201804079U CN 2010202746803 U CN2010202746803 U CN 2010202746803U CN 201020274680 U CN201020274680 U CN 201020274680U CN 201804079 U CN201804079 U CN 201804079U
- Authority
- CN
- China
- Prior art keywords
- circuit
- accumulator
- links
- microprocessor
- automobile
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Tests Of Electric Status Of Batteries (AREA)
Abstract
The utility model relates to an automobile circuit system and a special storage battery analyzer, wherein the analyzer comprises a discharging circuit, a reference voltage circuit, a detecting circuit, a differential circuit, an A/D (analog to digital) conversion circuit, a microprocessor, an LED (light emitting diode) circuit, a display circuit and a key input circuit. The special analyzer can detect the faults of the storage battery and an automobile circuit system, and can measure degradation degree of the storage battery. The automobile circuit system and the special storage battery analyzer do not have large-power heating elements, and are low in heat productivity, little in the volume of electronic parts, light in weight and little in measurement loss of the storage battery.
Description
Technical field
The utility model relates to a kind of automobile circuit system and accumulator specialty analysis instrument.Especially a kind of automobile circuit system and accumulator specialty analysis instrument that uses the 12V lead-acid accumulator.
Background technology
Automobile generating system and accumulator are automobilisms, and especially the vitals of automobile starting normally uses in order to guarantee automobile, need regularly vehicle startup system and accumulator to be detected.
Automotive battery mostly is the 12V lead-acid accumulator greatly; form by six Battery pack units in series; every group of voltage 2.1V; voltage 12.6V altogether; in actual use; through regular meeting the situation that individual elements is damaged takes place, this just needs a kind of means can judge easily whether accumulator has bad battery unit.
Existing accumulator detecting instrument ubiquity following problem:
1, equipment volume is big and heavy, is not easy to carry and use;
2, discharge a large amount of heat energy in the measuring process, need after the test to cool off and could continue to use, efficiency of measurement is low;
3, accumulator could drop into normal the use after needing charging again after the measurement;
4, the function that does not have the testing automobile electricity generation system;
5, do not test the function whether accumulator has bad battery unit.
The utility model content
A kind of automobile circuit system that the utility model provides and accumulator specialty analysis instrument do not have high-power heater element, and thermal value is low, and the electronic unit volume is little, in light weight, and the measuring battery loss is little.
In order to achieve the above object, the utility model provides a kind of automobile circuit system and accumulator specialty analysis instrument, and this analyser comprises discharge circuit, reference voltage circuit, testing circuit, difference channel, A/D change-over circuit, microprocessor, led circuit, display circuit, the button inputting circuits that circuit connects;
Described discharge circuit comprises commutation diode, pull-up resistor, current-limiting resistance, field effect transistor, the current source that circuit connects;
The positive pole of accumulator to be measured links to each other with the anode of commutation diode, the commutation diode negative electrode is connected to an end of pull-up resistor, simultaneously be connected to difference channel as sampling spot, behind the other end series current source of pull-up resistor, be connected to the drain electrode of field effect transistor, the source ground of field effect transistor links to each other with battery terminal negative to be measured simultaneously, and the grid of field effect transistor is connected into the output port of microprocessor;
Described reference voltage circuit links to each other with negative pole with the positive pole of accumulator to be measured, produces the required reference voltage of testing circuit and outputs to testing circuit;
Described testing circuit comprises the automatic correction-compensation device of differential amplifier, two-stage amplifier, third stage amplifier, reference voltage, reference voltage divider resistance, differential amplifier positive terminal divider resistance, differential amplifier end of oppisite phase divider resistance, integrating resistor, reference voltage filter capacitor, filter capacitor, current-limiting resistance, two-stage amplifier divider resistance, third stage amplifier divider resistance, the Dynamic Coupling electric capacity that circuit connects;
Two input ends of differential amplifier are connected with negative pole with the positive pole of accumulator to be measured by Dynamic Coupling electric capacity, electric potential difference between the both positive and negative polarity is dynamically amplified exports the two-stage amplifier divider resistance to, differential amplifier has a high input impedance, the normal phase input end of two-stage amplifier links to each other with filter capacitor and current-limiting resistance, inverting input links to each other with the two-stage amplifier divider resistance respectively, output terminal links to each other with the third stage amplifier divider resistance, the normal phase input end of third stage amplifier links to each other with filter capacitor and current-limiting resistance, inverting input links to each other with the third stage amplifier divider resistance respectively, output is as an input end of A/D change-over circuit, so that microprocessor is read the dynamic ripple at accumulator to be measured two ends;
The input end of described difference channel 4 links to each other with the negative electrode of the commutation diode D1 of discharge circuit 1, and output terminal is as an input of A/D change-over circuit 5; Difference channel be input as original battery discharging voltage signal, be output as the battery discharging voltage signal; The effect of difference channel is to reduce drift, suppresses common-mode signal, amplifies difference mode signal; The result who makes A/D change is not subjected to the influence of environment temperature, electromagnetic interference (EMI);
An input channel of described A/D change-over circuit links to each other with the output terminal of testing circuit, another input channel links to each other with the output terminal of difference channel, the output terminal of A/D change-over circuit links to each other with microprocessor, is used for analog voltage signal with two input channels and is converted to digital signal and sends microprocessor 6 to;
Described microprocessor built-in system clock and storer, store memory contain various testing standards and various contrast reference value;
The output port of microprocessor links to each other with the grid of the field effect transistor of discharge circuit respectively, be used for the control discharge, microprocessor is connected with the led circuit circuit, be used for the result indication, microprocessor links to each other with display circuit, is used for showing output result value and literal, the input port of microprocessor links to each other with button inputting circuits, be used to obtain user's button operation instruction, the input port of microprocessor links to each other with the output terminal of A/D change-over circuit, is used to obtain the A/D transforming numerical;
Described led circuit links to each other with the output port of microprocessor, and be subjected to the control of microprocessor, this led circuit comprises accumulator bad element test pilot lamp to be measured, automobile circuit system testing pilot lamp, is used to indicate accumulator bad element situation to be measured and automobile circuit system failure state;
Described display circuit comprises numeral, character display circuit, links to each other with the output end of microprocessor mouth, and controlled by it;
Described button inputting circuits comprises key circuit, links to each other with the microprocessor input port, and the button situation is passed to microprocessor.
Discharge circuit links to each other with the two poles of the earth of accumulator to be measured with testing circuit is independent respectively.
During measurement, accumulator to be measured is inserted discharge circuit respectively, reference voltage circuit, testing circuit, difference channel, button inputting circuits is exported to microprocessor with test instruction, microprocessor control discharge circuit carries out pulsed discharge, testing circuit detects battery tension variable signal in the discharge process, export to the A/D change-over circuit after treatment and carry out the A/D conversion, difference channel is exported to the A/D change-over circuit with the sparking voltage signal and is carried out the A/D conversion, the transformation result of A/D change-over circuit is exported to microprocessor again, through computing, comparison, obtain measurement result, then measurement result is represented by the bright lamp of led circuit, show relevant numeral and literal by display circuit.
The utlity model has following advantage:
1, can measure and show whether accumulator has bad battery unit;
2, can measure and show the impairment grade of accumulator;
3, can detect the whether normal and display result of automobile current generator;
Whether 4, can detect the automobile generating charging system normal;
5, the testing tool volume is small and exquisite, is easy to carry;
6, thermal value is low in the measuring process, can continuous coverage;
7, the accumulator electric-quantity loss is little in the measuring process, needn't charge after the measurement and can come into operation;
8, store the multiple current international practice The Storage Battery Industry in China standard and the conversion tables of comparisons of unit each other thereof such as SAE, IEC, DIN, JIS, EN, can freely select for the user.
Description of drawings
Fig. 1 is a kind of automobile circuit system that provides of the utility model and the schematic block circuit diagram of accumulator specialty analysis instrument;
Fig. 2 is a kind of automobile circuit system that provides of the utility model and the circuit theory diagrams of accumulator specialty analysis instrument.
Embodiment
Following according to Fig. 1 and Fig. 2, specify preferred embodiment of the present utility model:
As depicted in figs. 1 and 2, be a kind of automobile circuit system and accumulator specialty analysis instrument, this analyser comprises:
Discharge circuit 1, reference voltage circuit 2, testing circuit 3, difference channel 4, A/D change-over circuit 5, microprocessor 6, led circuit 7, display circuit 8, button inputting circuits 9 that circuit connects;
Described discharge circuit 1 comprises commutation diode D1, pull-up resistor R1, current-limiting resistance R2, field effect transistor Q1, the current source 12 that circuit connects;
The positive pole of accumulator to be measured links to each other with the anode of commutation diode D1, the commutation diode negative electrode is connected to the end of pull-up resistor R1, simultaneously be connected to difference channel 4 as sampling spot, behind the other end series current source 12 of pull-up resistor R1, be connected to the drain electrode of field effect transistor Q1, the source ground of field effect transistor Q1 links to each other with battery terminal negative to be measured simultaneously, and the grid of field effect transistor Q1 is connected into the output port of microprocessor 6;
Described reference voltage circuit 2 links to each other with negative pole with the positive pole of accumulator to be measured, produces testing circuit 3 required reference voltage VREF and outputs to testing circuit 3;
Described testing circuit 3 comprises the differential amplifier IC2:B that circuit connects, two-stage amplifier IC2:C, third stage amplifier IC2:D, the automatic correction-compensation device of reference voltage IC2:A, reference voltage divider resistance R2 and R3, differential amplifier positive terminal divider resistance R6 and R8, differential amplifier end of oppisite phase divider resistance R5 and R9, integrating resistor R4 and R7, reference voltage filter capacitor C3, filter capacitor C5, current-limiting resistance R12, two-stage amplifier divider resistance R11 and R13, third stage amplifier divider resistance R14 and R15, Dynamic Coupling capacitor C 1 and C2;
Two input ends of differential amplifier IC2:B are connected with negative pole with the positive pole of accumulator to be measured with C2 by Dynamic Coupling capacitor C 1, electric potential difference between the both positive and negative polarity is dynamically amplified exports two-stage amplifier divider resistance R11 to, differential amplifier IC2:B has a high input impedance, the normal phase input end of two-stage amplifier IC2:C links to each other with filter capacitor C5 and current-limiting resistance R12, inverting input links to each other with R13 with two-stage amplifier divider resistance R11 respectively, output terminal links to each other with third stage amplifier divider resistance R14, the normal phase input end of third stage amplifier IC2:D links to each other with filter capacitor C5 and current-limiting resistance R12, inverting input links to each other with R15 with third stage amplifier divider resistance R14 respectively, output is as an input end of A/D change-over circuit 5, so that microprocessor 6 is read the dynamic ripple at accumulator to be measured two ends;
The input end of described difference channel 4 links to each other with the negative electrode of the commutation diode D1 of discharge circuit 1, and output terminal is as an input of A/D change-over circuit 5; Difference channel be input as original battery discharging voltage signal, be output as the battery discharging voltage signal; The effect of difference channel is to reduce drift, suppresses common-mode signal, amplifies difference mode signal; The result who makes A/D change is not subjected to the influence of environment temperature, electromagnetic interference (EMI);
An input channel of described A/D change-over circuit 5 links to each other with the output terminal of testing circuit 3, another input channel links to each other with the output terminal of difference channel 4, the output terminal of A/D change-over circuit 5 links to each other with microprocessor 6, is used for analog voltage signal with two input channels and is converted to digital signal and sends microprocessor 6 to;
Described microprocessor 6 built-in system clock and storeies, store memory contains various testing standards and various contrast reference value; In the storer of microprocessor 6, store multiple current international practice The Storage Battery Industry in China standards such as SAE, IEC, DIN, JIS, EN, freely select for the user;
The output port of microprocessor 6 links to each other with the grid of the field effect transistor Q1 of discharge circuit 1 respectively, be used for the control discharge, microprocessor 6 is connected with led circuit 7 circuit, be used for the result indication, microprocessor 6 links to each other with display circuit 8, be used for showing output result value and literal, the input port of microprocessor 6 links to each other with button inputting circuits 9, be used to obtain user's button operation instruction, the input port of microprocessor 6 links to each other with the output terminal of A/D change-over circuit 5, is used to obtain the A/D transforming numerical;
Described led circuit 7 links to each other with the output port of microprocessor 6, and be subjected to the control of microprocessor 6, this led circuit 7 comprises accumulator bad element test pilot lamp 71 to be measured, automobile circuit system testing pilot lamp 72, is used to indicate accumulator bad element situation to be measured and automobile circuit system failure state;
Described display circuit 8 comprises numeral, character display circuit, links to each other with microprocessor 6 output ports, and controlled by it;
Described button inputting circuits 9 comprises key circuit, links to each other with microprocessor 6 input ports, and the button situation is passed to microprocessor 6.
Discharge circuit 1 links to each other with the two poles of the earth of accumulator to be measured with testing circuit 3 is independent respectively.
During measurement, accumulator to be measured is inserted discharge circuit 1 respectively, reference voltage circuit 2, testing circuit 3, difference channel 4, button inputting circuits 9 is exported to microprocessor 6 with test instruction, microprocessor 6 control discharge circuits 1 carry out pulsed discharge, testing circuit 3 detects battery tension variable signal in the discharge process, export to A/D change-over circuit 5 after treatment and carry out the A/D conversion, difference channel 4 is exported to A/D change-over circuit 5 with the sparking voltage signal and is carried out the A/D conversion, the transformation result of A/D change-over circuit 5 is exported to microprocessor 6 again, through computing, comparison, obtain measurement result, then measurement result is represented by led circuit 7 bright lamps, shown relevant numeral and literal by display circuit 8.
The method of utilizing automobile circuit system and accumulator specialty analysis instrument that the accumulator bad element is tested comprises following steps:
Step 1, insert accumulator to be measured, start analyser;
Microprocessor 6 is exported in the instruction that step 2, button inputting circuits 9 will receive;
Step 3,1 pair of accumulator to be measured of microprocessor 6 control discharge circuits carry out pulsed discharge;
Step 4, microprocessor 6 control detection circuit 3 and A/D change-over circuit 5 obtain the changing value Δ V of accumulator two pole tensions to be measured;
Step 5, stop pulse discharge;
The current impulse Δ I of step 6, microprocessor 6 reading pre-stored;
This current impulse Δ I is a given value, is stored in advance in the microprocessor 6, and this value is to be provided by the current source in the discharge circuit 1 12;
Step 7, microprocessor 6 calculate the internal resistance conductivity R of accumulator to be measured
BAT:
The internal resistance conductivity standard value R of step 8, microprocessor 6 reading pre-stored
REF
Step 9, judgement internal resistance conductivity R
BATWhether greater than internal resistance conductivity standard value R
REFIf,, then jump to step 10, if not, jump to step 11;
Accumulator bad element test pilot lamp 71 indication accumulator failures in step 10, the led circuit 7;
Step 11, end test.
Utilize automobile circuit system and accumulator specialty analysis instrument that the method that the automobile circuit system tests is comprised following steps:
Step 1, access automobile circuit system (is accumulator to be measured with the equivalence of automobile circuit system) start analyser;
Microprocessor 6 is exported in the instruction that step 2, button inputting circuits 9 will receive;
Step 3, microprocessor 6 control detection circuit 3 and A/D change-over circuit 5 obtain the change in voltage interval (V of automobile circuit system
MIN, V
MAX), the maximal value 90 degree is V to voltage waveform from the phase place zero degree to phase place
MAX, minimum value is V
MIN
Step 4, the reading pre-stored normal voltage constant interval (VR in microprocessor 6
MIN, VR
MAX);
Step 5, with change in voltage interval (V
MIN, V
MAX) with the storer that leaves microprocessor 6 in advance in normal voltage constant interval (VR
MIN, VR
MAX) comparison;
With V
MAXWith VR
MAXCompare, if V
MAXGreater than VR
MAX, then jump to step 6, otherwise, continue V
MINWith VR
MINCompare, if V
MINLess than VR
MIN, then jump to step 6, otherwise, jump to step 7;
The automobile circuit system testing pilot lamp 72 indication automobile circuit system failures in step 6, the led circuit 7;
Step 7, end test.
The method of utilizing automobile circuit system and accumulator specialty analysis instrument that the deterioration of battery degree is tested comprises following steps:
Step 1, insert accumulator to be measured, start analyser;
Microprocessor 6 is exported in the instruction that step 2, button inputting circuits 9 will receive;
Step 3,1 pair of accumulator to be measured of microprocessor 6 control discharge circuits carry out pulsed discharge;
Step 4, microprocessor 6 control detection circuit 3 and A/D change-over circuit 5 obtain the changing value Δ V of accumulator two pole tensions to be measured;
Step 5, microprocessor 6 control difference channels 4 and A/D change-over circuit 5 obtain battery tension VL to be measured;
Step 6, stop pulse discharge;
Step 7, microcontroller 6 read selected accumulator impairment grade industrial standard;
Different accumulator impairment grade industrial standards represents to use the unit of quantity of different implications to the impairment grade of accumulator;
Step 8, microprocessor 6 calculating accumulator impairment grade G;
Wherein:
Mean value for the changing value Δ V of accumulator two pole tensions to be measured;
Step 9, microprocessor 6 carry out unit conversion according to selected accumulator impairment grade industrial standard to G, and display circuit 8 shows the impairment grade G of accumulator to be measured.
Although content of the present utility model has been done detailed introduction by above preferred embodiment, will be appreciated that above-mentioned description should not be considered to restriction of the present utility model.After those skilled in the art have read foregoing, for multiple modification of the present utility model with to substitute all will be conspicuous.Therefore, protection domain of the present utility model should be limited to the appended claims.
Claims (10)
1. automobile circuit system and accumulator specialty analysis instrument is characterized in that this analyser comprises:
Discharge circuit (1), reference voltage circuit (2), testing circuit (3), difference channel (4), A/D change-over circuit (5), microprocessor (6), led circuit (7), display circuit (8), button inputting circuits (9) that circuit connects;
Discharge circuit (1) links to each other with the two poles of the earth of accumulator to be measured with testing circuit (3) is independent respectively.
2. automobile circuit system as claimed in claim 1 and accumulator specialty analysis instrument, it is characterized in that described discharge circuit (1) comprises commutation diode (D1), pull-up resistor (R1), current-limiting resistance (R2), field effect transistor (Q1), the current source (12) that circuit connects;
The positive pole of accumulator to be measured links to each other with the anode of commutation diode (D1), the commutation diode negative electrode is connected to an end of pull-up resistor (R1), simultaneously be connected to difference channel (4) as sampling spot, behind the other end series current source (12) of pull-up resistor (R1), be connected to the drain electrode of field effect transistor (Q1), the source ground of field effect transistor (Q1) links to each other with battery terminal negative to be measured simultaneously, and the grid of field effect transistor (Q1) is connected into the output port of microprocessor (6).
3. automobile circuit system as claimed in claim 1 and accumulator specialty analysis instrument, it is characterized in that described testing circuit (3) comprises the differential amplifier (IC2:B) that circuit connects, two-stage amplifier (IC2:C), third stage amplifier (IC2:D), the automatic correction-compensation device of reference voltage (IC2:A), reference voltage divider resistance (R2, R3), differential amplifier positive terminal divider resistance (R6, R8), differential amplifier end of oppisite phase divider resistance (R5, R8), integrating resistor (R4, R7), reference voltage filter capacitor (C3), filter capacitor (C5), current-limiting resistance (R12), two-stage amplifier divider resistance (R11, R13), third stage amplifier divider resistance (R14, R15), Dynamic Coupling electric capacity (C1, C2);
Two input ends of differential amplifier (IC2:B) are by Dynamic Coupling electric capacity (C1, C2) be connected with negative pole with the positive pole of accumulator to be measured, electric potential difference between the both positive and negative polarity is dynamically amplified exports two-stage amplifier divider resistance (R11) to, differential amplifier (IC2:B) has a high input impedance, the normal phase input end of two-stage amplifier (IC2:C) links to each other with filter capacitor (C5) and current-limiting resistance (R12), inverting input respectively with two-stage amplifier divider resistance (R11, R13) link to each other, output terminal links to each other with third stage amplifier divider resistance (R14), the normal phase input end of third stage amplifier (IC2:D) links to each other with filter capacitor (C5) and current-limiting resistance (R12), inverting input respectively with third stage amplifier divider resistance (R14, R15) link to each other, output is as an input end of A/D change-over circuit (5), so that microprocessor (6) is read the dynamic ripple at accumulator to be measured two ends.
4. automobile circuit system as claimed in claim 1 and accumulator specialty analysis instrument is characterized in that, described reference voltage circuit (2) links to each other with negative pole with the positive pole of accumulator to be measured, produce testing circuit
(3) required reference voltage (VREF) outputs to testing circuit (3); Described difference channel
(4) input end links to each other with the negative electrode of the commutation diode (D1) of discharge circuit (1), and output terminal is as an input of A/D change-over circuit (5).
5. automobile circuit system as claimed in claim 1 and accumulator specialty analysis instrument, it is characterized in that, an input channel of described A/D change-over circuit (5) links to each other with the output terminal of testing circuit (3), another input channel links to each other with the output terminal of difference channel (4), the output terminal of A/D change-over circuit (5) links to each other with microprocessor (6), is used for analog voltage signal with two input channels and is converted to digital signal and sends microprocessor (6) to.
6. automobile circuit system as claimed in claim 1 and accumulator specialty analysis instrument, it is characterized in that, described microprocessor (6) built-in system clock and storer, the output port of microprocessor (6) links to each other with the grid of the field effect transistor (Q1) of discharge circuit (1) respectively, microprocessor (6) is connected with led circuit (7) circuit, microprocessor (6) links to each other with display circuit (8), the input port of microprocessor (6) links to each other with button inputting circuits (9), and the input port of microprocessor (6) links to each other with the output terminal of A/D change-over circuit (5).
7. automobile circuit system as claimed in claim 1 and accumulator specialty analysis instrument is characterized in that, described led circuit (7) links to each other with the output port of microprocessor (6).
8. automobile circuit system as claimed in claim 7 and accumulator specialty analysis instrument is characterized in that, described led circuit (7) comprises accumulator bad element test pilot lamp (71) to be measured, automobile circuit system testing pilot lamp (72).
9. automobile circuit system as claimed in claim 1 and accumulator specialty analysis instrument is characterized in that, described display circuit (8) links to each other with microprocessor (6) output port.
10. automobile circuit system as claimed in claim 1 and accumulator specialty analysis instrument is characterized in that, described button inputting circuits (9) links to each other with microprocessor (6) input port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202746803U CN201804079U (en) | 2010-07-29 | 2010-07-29 | Automobile circuit system and special storage battery analyzer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202746803U CN201804079U (en) | 2010-07-29 | 2010-07-29 | Automobile circuit system and special storage battery analyzer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201804079U true CN201804079U (en) | 2011-04-20 |
Family
ID=43873582
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202746803U Expired - Fee Related CN201804079U (en) | 2010-07-29 | 2010-07-29 | Automobile circuit system and special storage battery analyzer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201804079U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101937052A (en) * | 2010-07-29 | 2011-01-05 | 上海广为电器工具有限公司 | Professional automobile circuit system and battery analyzer and analysis method thereof |
| CN109669144A (en) * | 2017-10-13 | 2019-04-23 | 矢崎总业株式会社 | The method of secondary cell state detector and detection secondary cell state |
-
2010
- 2010-07-29 CN CN2010202746803U patent/CN201804079U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101937052A (en) * | 2010-07-29 | 2011-01-05 | 上海广为电器工具有限公司 | Professional automobile circuit system and battery analyzer and analysis method thereof |
| CN109669144A (en) * | 2017-10-13 | 2019-04-23 | 矢崎总业株式会社 | The method of secondary cell state detector and detection secondary cell state |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103257286B (en) | A kind of charging electric vehicle facility automatic test approach and system | |
| CN103163464B (en) | The detection method of battery core in power brick | |
| CN205898880U (en) | Parallelly connected battery branch circuit current detection device | |
| CN107677964B (en) | A kind of New energy automobile motor battery analog detection method | |
| CN102073019B (en) | Test method of whole automotive electric balance | |
| CN105738815A (en) | Method for detecting state of health of lithium ion battery online | |
| CN203502540U (en) | Current transformer polarity tester | |
| CN103008261A (en) | Method for sorting degrees of self-discharging of lithium ion batteries | |
| CN104122884A (en) | Simulation test device of battery management system | |
| CN201311486Y (en) | Detection device for terminal power | |
| CN205263278U (en) | Monomer internal resistance of battery and connecting wire resistance measurement device thereof | |
| CN107315122B (en) | Fill electric pile testing arrangement | |
| CN106199298A (en) | A kind of ultracapacitor module test technology | |
| CN106299180B (en) | The combination of electric tool and battery pack | |
| CN109490790A (en) | Using the lithium dynamical battery power characteristic test method and device of compensated pulse method | |
| CN102253346B (en) | Method and device for automatically testing battery charging | |
| CN102269799B (en) | Method and system for detecting capacity of secondary battery | |
| CN201804079U (en) | Automobile circuit system and special storage battery analyzer | |
| CN105092971A (en) | Pure electric high-voltage insulated resistance real-time online detection method | |
| CN101937052A (en) | Professional automobile circuit system and battery analyzer and analysis method thereof | |
| CN201583635U (en) | Capacity detection circuit for power lithium batteries | |
| CN202870190U (en) | Comprehensive testing stand for charger used for electric bicycle | |
| CN203502565U (en) | Storage battery detector | |
| CN211348477U (en) | Lithium battery protection board detection device | |
| CN104678179A (en) | Measurement for internal resistance of automobile storage battery |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110420 Termination date: 20130729 |