CN107368065A - Preliminary filling board test device and preliminary filling board test device control method - Google Patents
Preliminary filling board test device and preliminary filling board test device control method Download PDFInfo
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- CN107368065A CN107368065A CN201710779977.1A CN201710779977A CN107368065A CN 107368065 A CN107368065 A CN 107368065A CN 201710779977 A CN201710779977 A CN 201710779977A CN 107368065 A CN107368065 A CN 107368065A
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- 238000012360 testing method Methods 0.000 title claims abstract description 95
- 238000000034 method Methods 0.000 title claims abstract description 16
- 238000007600 charging Methods 0.000 claims abstract description 115
- 239000003990 capacitor Substances 0.000 claims abstract description 84
- 230000005611 electricity Effects 0.000 claims description 11
- 230000002159 abnormal effect Effects 0.000 claims description 8
- 238000007599 discharging Methods 0.000 claims description 2
- 238000005070 sampling Methods 0.000 description 11
- 230000008859 change Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 230000009466 transformation Effects 0.000 description 3
- 238000000844 transformation Methods 0.000 description 3
- 230000003111 delayed effect Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000001594 aberrant effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Classifications
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B23/00—Testing or monitoring of control systems or parts thereof
- G05B23/02—Electric testing or monitoring
- G05B23/0205—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults
- G05B23/0218—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults characterised by the fault detection method dealing with either existing or incipient faults
- G05B23/0221—Preprocessing measurements, e.g. data collection rate adjustment; Standardization of measurements; Time series or signal analysis, e.g. frequency analysis or wavelets; Trustworthiness of measurements; Indexes therefor; Measurements using easily measured parameters to estimate parameters difficult to measure; Virtual sensor creation; De-noising; Sensor fusion; Unconventional preprocessing inherently present in specific fault detection methods like PCA-based methods
Abstract
The present invention relates to a kind of preliminary filling board test device and preliminary filling board test device control method.The preliminary filling board test device, including：Pre-charging capacitor, the pre-charging capacitor are the equivalent capacity of battery of electric vehicle；Charging circuit, the charging circuit electrically connect with the pre-charging capacitor, for being charged by preliminary filling plate for pre-charging capacitor；Discharge circuit, the discharge circuit electrically connect with the pre-charging capacitor, for being discharged for pre-charging capacitor；Control device, control preliminary filling plate charge to pre-charging capacitor and control opening for discharge circuit to be discharged with shut-off pre-charging capacitor.Preliminary filling board test device provided by the invention, the test to preliminary filling plate is completed by control device.The setting of preliminary filling board test device reduces staff's manual operations, and testing efficiency is high, and test data is accurate.
Description
Technical field
The present invention relates to detection means, more particularly to a kind of preliminary filling board test device and preliminary filling board test device controlling party
Method.
Background technology
The preliminary filling plate of electric automobile is that the electric capacity of the power apparatus in electric automobile high-voltage power up to electric automobile enters
The control panel of line precharge, the normal work of the preliminary filling plate are just avoided that the wink occurred in power up more than rated current several times
Between dash current, avoid the damage to the contact of the fuse and high pressure of electric automobile, be electric automobile important control unit it
One.But preliminary filling plate relies primarily on tester's manual test parameters point, to complete preliminary filling during production testing
Exfactory inspection.
Preliminary filling plate is carried out in conventional art to use manual operations during preliminary filling test, it is higher yet with control voltage
(500V), the safety of tester cannot ensure, and testing efficiency hand-manipulated, than relatively low, test data counts difficulty
Greatly.
The content of the invention
Based on this, it is necessary to which manual operations, testing efficiency are than relatively low during for the progress preliminary filling test of preliminary filling plate, test data
Count the big problem of difficulty, there is provided a kind of preliminary filling board test device and preliminary filling board test device control method.
A kind of preliminary filling board test device, including：
Pre-charging capacitor, the pre-charging capacitor are the equivalent capacity of battery of electric vehicle；
Charging circuit, the charging circuit electrically connect with the pre-charging capacitor, for being filled by preliminary filling plate for pre-charging capacitor
Electricity；
Discharge circuit, the discharge circuit electrically connect with the pre-charging capacitor, for being discharged for pre-charging capacitor；
Control device, control preliminary filling plate is to pre-charging capacitor charging and controls opening and turning off to precharge for discharge circuit
Discharge capacitor.
Above-mentioned preliminary filling board test device, the test to preliminary filling plate is completed by control device.Preliminary filling board test device is set
Putting reduces staff's manual operations, and testing efficiency is high, and test data is accurate.
In one of the embodiments, the charging circuit includes preliminary filling resistance, and the preliminary filling resistance is electrically connected to described
Between preliminary filling plate and the pre-charging capacitor, for the current limliting to charging circuit.
In one of the embodiments, the discharge circuit includes discharge resistance, the discharge resistance and the precharge
Hold electrical connection, for discharging the pre-charging capacitor.
In one of the embodiments, the control device includes control unit, charge switch and discharge switch, the control
Unit processed is used to receive test signal, and control instruction is sent according to the test signal；The charge switch, which is used to control, to charge
Circuit being opened and turning off；The discharge switch is used to control opening and turning off for discharge circuit.
In one of the embodiments, the control device includes voltage sampling circuit, defeated for gathering the preliminary filling plate
Go out end and the voltage of the pre-charging capacitor input, and the voltage is handled to obtain sampled signal.
In one of the embodiments, the control device also includes power circuit, for being provided for the control device
Power supply.
In one of the embodiments, the control device also includes reset circuit, for when the circuit in control device
Resetted when generation is abnormal.
In one of the embodiments, in addition to display device, the display device communicate to connect with the control device,
For showing preliminary filling information.
In one of the embodiments, the display device includes default unit, and the default unit is used to preset preliminary filling
Number and pre-charge pressure, and the preset times and predeterminated voltage are sent to the control device.
A kind of preliminary filling board test device control method, including：
Obtain and start preliminary filling signal；
Pre-charge pressure is gathered, judges whether pre-charge pressure is qualified；
If pre-charge pressure is qualified, charged by preliminary filling plate for pre-charging capacitor；
Gather the voltage between preliminary filling plate output end and pre-charging capacitor input；
If the voltage between preliminary filling plate output end and pre-charging capacitor input is less than critical voltage and pre-charging capacitor input
Voltage is more than control voltage, and test is normal, and preserves data；
Preliminary filling end signal is obtained, is discharged by discharge circuit for pre-charging capacitor；
Preliminary filling plate output end voltage is gathered, judges whether preliminary filling plate output end voltage is less than critical voltage；
If preliminary filling plate output end voltage is less than critical voltage, discharge switch is disconnected, test terminates.
Above-mentioned preliminary filling board test device control method, collection preliminary filling board test signal is controlled by control device, completion
The test of preliminary filling plate, test is carried out to preliminary filling plate can realize automatic detection, reduce staff's manual operations, and test effect
Rate is high, and test data is accurate.
Brief description of the drawings
Fig. 1 is preliminary filling board test device module map provided in an embodiment of the present invention；
Fig. 2 is preliminary filling board test device circuit diagram provided in an embodiment of the present invention；
Fig. 3 is the preliminary filling board test device module map that another embodiment of the present invention provides；
Fig. 4 is preliminary filling board test device control method flow chart provided in an embodiment of the present invention；
Fig. 5 is the preliminary filling board test device control method flow chart that another embodiment of the present invention provides.
Wherein：
100- preliminary filling board test devices；
110- charging circuits；
120- pre-charging capacitors；
130- discharge circuits；
140- control devices；
142- power circuits；
144- control units；
146- voltage sampling circuits；
148- reset circuits；
150- display devices；
151- presets unit.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, below in conjunction with accompanying drawing to the present invention's
Preliminary filling board test device and preliminary filling board test device control method are further elaborated.It is it should be appreciated that described herein
Specific embodiment only to explain the present invention, be not intended to limit the present invention.
Referring to Fig. 1, one embodiment of the invention, there is provided a kind of preliminary filling board test device 100, including：Pre-charging capacitor
120th, charging circuit 110, discharge circuit 130 and control device 140.Wherein pre-charging capacitor 120 is the equivalent electric of battery of electric vehicle
Hold.The size of the capacity of pre-charging capacitor 120 can determine according to being actually needed.It is pre- that charging circuit 110, which is used for by preliminary filling plate T1,
120 chargings are held in charging.Discharge circuit 130 is used to discharge for pre-charging capacitor 120.Control device 140 be used for control preliminary filling plate T1 to
Pre-charging capacitor 120 charges and controls opening for discharge circuit 130 to be discharged with shut-off pre-charging capacitor 120.
The preliminary filling board test device 100 that above-described embodiment provides, the survey to preliminary filling plate T1 is completed by control device 140
Examination.The setting of preliminary filling board test device 100 reduces staff's manual operations, and testing efficiency is high, and test data is accurate.
Referring to Fig. 2, specifically, preliminary filling plate T1 inputs side electrically connects extraneous high voltage power supply, opposite side electrical connection control
The output end of device 140 processed.Preliminary filling plate T1 output end electrical connection charging circuit 110, the access that can connect of pre-charging capacitor 120 are filled
In circuit 110, charging circuit 110 is used to charge for pre-charging capacitor 120.Charge switch K1 one end electrically connects extraneous high-tension electricity
Source, the other end electrical connection input of pre-charging capacitor 120.Control device 140 electrically connects with charge switch K1, and control device 140 can
To be charged by controlling charge switch K1 closure to stop charging circuit 110 to pre-charging capacitor 120.Further, the preliminary filling
Electric capacity 120, which can connect, accesses discharge circuit 130, is discharged for pre-charging capacitor 120.Discharge switch K2 one end electrically connects pre-charging capacitor
120 inputs, other end electrical connection discharge resistance R2, control device 140 is by controlling discharge switch K2 closure as precharge
Hold 120 electric discharges.
In one of embodiment, charging circuit 110 includes preliminary filling resistance R1, the preliminary filling resistance R1 and is electrically connected to described
Between preliminary filling plate T1 and the pre-charging capacitor 120, for the current limliting to charging circuit 110.Specifically, preliminary filling resistance R1 series connections
Enter in charging circuit 110, preliminary filling resistance R1 is in parallel with charge switch K1 after being connected with pre-charging capacitor 120.Charge switch K1's closes
Close and disconnect for controlling opening and turning off for charging circuit 110.Preliminary filling resistance R1 is preliminary filling plate T1 to be measured to pre-charging capacitor 120
The current-limiting resistance of charging.Preliminary filling resistance R1 resistance is unlimited, can be determined according to the needs of actual circuit, as long as completing to filling
The current limliting of circuit 110, prevent in the charging process of pre-charging capacitor 120, the electric current in charging circuit 110 is excessive, and damage is filled
This function of circuit 110.
In one of embodiment, discharge circuit 130 includes discharge resistance R2, discharge resistance R2 and the electricity of pre-charging capacitor 120
Connection, for being discharged to pre-charging capacitor 120.Specifically, discharge resistance R2 forms discharge circuit with pre-charging capacitor 120.Electric discharge electricity
Resistance R2 is connected in series with pre-charging capacitor 120 and discharge switch K2.Discharge switch K2 closed and disconnected control discharge circuit 130
Open and turn off.Discharge resistance R2 setting matches with pre-charging capacitor 120, for completing the electric discharge of pre-charging capacitor 120.Put
Resistance R2 resistance can determine according to the size of pre-charging capacitor 120, as long as completing in the mistake discharged pre-charging capacitor 120
Discharge circuit 130 this function will not be damaged by ensureing the electric current of discharge circuit 130 in journey.
Also referring to Fig. 3, in one of embodiment, control device 140 includes control unit 144, charge switch K1
With discharge switch K2.Control unit 144 electrically connects with charge switch K1, discharge switch K2.Control unit 144 is controlled by sending
Order control charge switch K1 and discharge switch K2 closed and disconnected, so as to control charging circuit 110 and discharge circuit respectively
130 opening and turn off.Control unit 144 is used to receive test signal, and control instruction is sent according to the test signal.Control
Unit 144 is the core control portions of control device 140, and control unit 144 can be MCU control unit.Charge switch K1 is used
Opening and turning off in control charging circuit 110.Discharge switch K2 is used to control opening and turning off for discharge circuit 130.Wherein,
Charge switch K1 can be preliminary filling contactor, and preliminary filling contactor connection high voltage input terminal, high input voltage terminal voltage is HV_IN+, high
Pressure input is charged by preliminary filling resistance R1 to pre-charging capacitor 120.When the voltage at the both ends of pre-charging capacitor 120 is more than 0.9 times of HV_
During IN+, preliminary filling contactor is closed, preliminary filling charging process is completed.Wherein, discharge switch K2 can be electric discharge relay.Electric discharge after
Electrical equipment electrically connects with discharge resistance R2.When preliminary filling contactor closes, after preliminary filling charging complete, the voltage in pre-charging capacitor 120 reaches
To HV_IN+, when being tested for next time, preliminary filling plate T1 pre-charging capacitor 120 preliminary filling, control unit 144 since 0 voltage pass through
Control electric discharge relay closure, is discharged with discharge resistance R2 to pre-charging capacitor 120.
In one of embodiment, control device 140 includes voltage sampling circuit 146.Voltage sampling circuit 146 is used to adopt
Collect preliminary filling plate T1 output ends and the voltage of the input of pre-charging capacitor 120, and the voltage is handled to obtain sampling letter
Number.Specifically, voltage sampling circuit 146 can gather the voltage of preliminary filling plate T1 output ends and the pre-charging capacitor input, i.e.,
The voltage of B points and A points in Fig. 2 is gathered, passes through AD of the voltage change circuit transformations into appropriate control source to control unit 144
Port, voltage signal is converted into data signal in the AD ports of control unit 144 and is input to control unit 144, so as to complete
Analog-to-digital conversion.Or voltage sampling circuit 146 can also gather preliminary filling plate T1 output ends and the input of pre-charging capacitor 120
Between voltage, that is, gather voltage between B points and A points in Fig. 1, the voltage between B points and A points can also pass through voltage change
AD port of the circuit transformations into appropriate control source to control unit 144, in the AD ports of control unit 144 by voltage signal
It is converted into data signal and is input to control unit 144, so as to completes analog-to-digital conversion.
In one of embodiment, control device 140 also includes power circuit 142, for being carried for the control device 140
Power supply source.It can be power supply that control unit 144 is powered that Power convert in circuit can be by power circuit 142.That is power supply
24V power conversions can be used to power to MCU control unit by circuit 142 into 5V power supplys.Further, control device 140 is gone back
Including reset circuit 148, reset circuit 148 is used to be resetted when the circuit abnormal in control device 140.Work as control
When circuit signal in device 140 occurs abnormal, reset circuit 148 receives abnormal signal and circuit can be carried out at reset
Reason.Reset circuit 148 both can guarantee that the reset of MCU control unit or can ensure voltage sampling circuit 146 in control device 140
Reset, the setting of reset circuit 148 ensure that the reliable reset of control device 140.
In one of the embodiments, preliminary filling board test device 100 also includes display device 150, display device 150 and control
Device 140 processed communicates to connect, for showing preliminary filling information.Preliminary filling information mainly includes pre-charge pressure, pre-charging time, and preliminary filling starts
Voltage, preliminary filling number and test abnormal alarm prompting.Further, display device 150 includes default unit 151, described pre-
If unit 151 is used to preset preliminary filling number and pre-charge pressure, and the preset times and predeterminated voltage are sent into the control
Device 140.Specifically, display unit can be LCD display unit.The preliminary filling of test preliminary filling plate can be set in an lcd
Number, pre-charge pressure., can be by CAN by preliminary filling number after preliminary filling number and the pre-charge pressure of preliminary filling plate are set
MCU control unit is sent to pre-charge pressure information, so as to start test.
Also referring to Fig. 4, one embodiment of the invention, there is provided a kind of preliminary filling board test device control method, including：
S100, obtain and start preliminary filling signal；
S200, pre-charge pressure is gathered, judges whether pre-charge pressure is qualified；
S300, it is that pre-charging capacitor 120 charges by preliminary filling plate T1 if pre-charge pressure is qualified；
S400, gather the voltage between preliminary filling plate T1 output ends and the input of pre-charging capacitor 120；
S500, if the voltage between preliminary filling plate T1 output ends and the input of pre-charging capacitor 120 is less than critical voltage and preliminary filling
The input terminal voltage of electric capacity 120 is more than control voltage, and test is normal, and preserves data；
S600, preliminary filling end signal is obtained, be that pre-charging capacitor 120 is discharged by discharge circuit 130；
S700, preliminary filling plate T1 output end voltages are gathered, judge whether preliminary filling plate T1 output end voltages are less than critical voltage；
S800, if preliminary filling plate T1 output end voltages are less than critical voltage, discharge switch is disconnected, test terminates.
Specifically, the control unit 144 in control device 140 is got after starting preliminary filling signal, control unit 144 passes through
Voltage sampling circuit 146 gathers preliminary filling plate T1 output ends and the voltage of the input of pre-charging capacitor 120.Preliminary filling plate T1 is exported
Terminal voltage carries out processing to the pre-charge pressure collected and passes through voltage change circuit transformations into appropriate voltage as pre-charge pressure
The AD ports of control unit 144 are input to, voltage signal is converted into data signal in the AD ports of control unit 144 is input to
Control unit 144.Whether the pre-charge pressure that the judgement of control unit 144 collects is qualified.If pre-charge pressure is qualified, pass through preliminary filling
Plate T1 is that pre-charging capacitor 120 charges.
Further, control unit 144 gathers preliminary filling plate T1 output ends and pre-charging capacitor by voltage sampling circuit 146
Voltage between 120 inputs.The voltage swing for judging to collect through control unit 144, if the preliminary filling plate T1 outputs collected
Voltage between end and pre-charging capacitor input is less than critical voltage and pre-charging capacitor input terminal voltage is more than control voltage, tests
Normally, data are preserved and.Wherein critical voltage can be 1V but be not limited to 1V.The size of critical voltage can be according to being actually needed
To determine.Control voltage can be 500V, but be not limited to 500V, and the size of control voltage can be according to actual preliminary filling plate T1 control
The size of voltage processed determines.
Further, control unit 144 obtains preliminary filling end signal, and control unit 144 sends close command to electric discharge and opened
K2 is closed, closes discharge switch K2, is that pre-charging capacitor 120 is discharged by discharge circuit 130.Further, control unit 144 is logical
Overvoltage sample circuit 146 gathers preliminary filling plate T1 output end voltages, judges whether preliminary filling plate T1 output end voltages are less than critical electricity
Pressure.If preliminary filling plate T1 output end voltages are more than or equal to critical voltage, continue to gather preliminary filling plate T1 output end voltages.If preliminary filling
Plate T1 output end voltages then send open command to discharge switch K2 less than critical voltage, disconnect discharge switch K2, test knot
Beam.
Please refer to fig. 5, in one of the embodiments, the control unit 144 in control device 140 starts in acquisition
After preliminary filling signal, program brings into operation.Clock initialization and peripheral hardware initialization command is first carried out, it is defeated by default unit 151
Enter test command, control unit 144 judges whether to receive beginning test command, and next journey is carried out after test command is received
Sequence, when control unit 144 is not received by test command, then continue to test command.
After control unit 144 receives test command, preliminary filling enable signal is sent to preliminary filling test board T1, preliminary filling test
Plate T1 reads preliminary filling enable signal.Control unit 144 gathers the voltage of A points and B points by voltage sampling circuit 146.
Control unit 144 judges whether pre-charge pressure is qualified.If pre-charge pressure is qualified, delay 200ms reads A points and B
Point voltage.If pre-charge pressure is unqualified, sending aberrant commands to display device 150, display device 150 can show that voltage is different
Normal information, and preserve electric voltage exception data.
Further, control unit 144 judges whether charge switch K1 closes, if charge switch K1 is closure state, sentences
The voltage of disconnected A points and B points, if the voltage of A points and B points is more than 500V less than 1V and A points voltage, test is normal, and preserves data.
If judging, the voltage between A points and B points is less than or equal to 500V more than or equal to 1V or A points voltage, sends abnormal signal to display
Unit.
If charge switch K1 is off-state, sends abnormal signal to display device 150, display device 150 and show pre-
Fill plate fault message.
Further, control unit 144 obtains preliminary filling end signal, is that pre-charging capacitor 120 is put by discharge circuit 130
Electricity.The 50ms control units 144 that are delayed send close command to discharge switch K2, close discharge switch K2.B point voltages are gathered,
Judge whether preliminary filling plate output end voltage is less than 1V.If B points voltage is more than or equal to 1V, continue to gather preliminary filling plate output end electricity
Pressure.The 50ms that is delayed if preliminary filling plate output end voltage is less than 1V sends open command to discharge switch K2, discharge switch K2 is broken
Open, test terminates.
Preliminary filling board test device control method provided in an embodiment of the present invention, collection preliminary filling plate is controlled to survey by control device
Trial signal, complete the test of preliminary filling plate.Preliminary filling board test device control method provided in an embodiment of the present invention is carried out to preliminary filling plate
Test can realize automatic detection, reduce staff's manual operations, and testing efficiency is high, and test data is accurate.
Each technical characteristic of embodiment described above can be combined arbitrarily, to make description succinct, not to above-mentioned reality
Apply all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, the scope that this specification is recorded all is considered to be.
Embodiment described above only expresses the several embodiments of the present invention, and its description is more specific and detailed, but simultaneously
Can not therefore it be construed as limiting the scope of the patent.It should be pointed out that come for one of ordinary skill in the art
Say, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the protection of the present invention
Scope.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (10)
- A kind of 1. preliminary filling board test device, it is characterised in that including：Pre-charging capacitor, the pre-charging capacitor are the equivalent capacity of battery of electric vehicle；Charging circuit, the charging circuit electrically connect with the pre-charging capacitor, for being charged by preliminary filling plate for pre-charging capacitor；Discharge circuit, the discharge circuit electrically connect with the pre-charging capacitor, for being discharged for pre-charging capacitor；Control device, control preliminary filling plate charge to pre-charging capacitor and control opening for discharge circuit to be received with shut-off to precharge Electricity.
- 2. preliminary filling board test device according to claim 1, it is characterised in that the charging circuit includes preliminary filling resistance, The preliminary filling resistance is electrically connected between the preliminary filling plate and the pre-charging capacitor, for the current limliting to charging circuit.
- 3. preliminary filling board test device according to claim 1, it is characterised in that the discharge circuit includes discharge resistance, The discharge resistance electrically connects with the pre-charging capacitor, for discharging the pre-charging capacitor.
- 4. preliminary filling board test device according to claim 1, it is characterised in that the control device include control unit, Charge switch and discharge switch, described control unit are used to receive test signal, and control instruction is sent according to the test signal； The charge switch is used to control opening and turning off for charging circuit；The discharge switch be used for control discharge circuit open with Shut-off.
- 5. preliminary filling board test device according to claim 1, it is characterised in that the control device includes voltage sample electricity Road, for gathering the voltage of the preliminary filling plate output end and the pre-charging capacitor input, and to the voltage handle To sampled signal.
- 6. preliminary filling board test device according to claim 1, it is characterised in that the control device also includes power supply electricity Road, for providing power supply for the control device.
- 7. preliminary filling board test device according to claim 1, it is characterised in that the control device also includes resetting electricity Road, for being resetted when the circuit abnormal in control device.
- 8. preliminary filling board test device according to claim 1, it is characterised in that also including display device, the display dress Put and communicated to connect with the control device, for showing preliminary filling information.
- 9. preliminary filling board test device according to claim 8, it is characterised in that the display device includes default unit, The default unit is used to preset preliminary filling number and pre-charge pressure, and the preset times and predeterminated voltage are sent into the control Device processed.
- A kind of 10. preliminary filling board test device control method, it is characterised in that including：Obtain and start preliminary filling signal；Pre-charge pressure is gathered, judges whether pre-charge pressure is qualified；If pre-charge pressure is qualified, charged by preliminary filling plate for pre-charging capacitor；Gather the voltage between preliminary filling plate output end and pre-charging capacitor input；If the voltage between preliminary filling plate output end and pre-charging capacitor input is less than critical voltage and pre-charging capacitor input terminal voltage More than control voltage, test is normal, and preserves data；Preliminary filling end signal is obtained, is discharged by discharge circuit for pre-charging capacitor；Preliminary filling plate output end voltage is gathered, judges whether preliminary filling plate output end voltage is less than critical voltage；If preliminary filling plate output end voltage is less than critical voltage, discharge switch is disconnected, test terminates.
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| CN201710779977.1A CN107368065A (en) | 2017-09-01 | 2017-09-01 | Preliminary filling board test device and preliminary filling board test device control method |
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| CN201710779977.1A CN107368065A (en) | 2017-09-01 | 2017-09-01 | Preliminary filling board test device and preliminary filling board test device control method |
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| CN107368065A true CN107368065A (en) | 2017-11-21 |
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| CN108054792A (en) * | 2017-12-04 | 2018-05-18 | 广东美的制冷设备有限公司 | Power tube power supply circuit and power tube test device |
| CN112834934A (en) * | 2020-12-30 | 2021-05-25 | 上海钧正网络科技有限公司 | Device and system for testing adaptability of battery |
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