CN206471857U - Electric vehicle motor controller active release electric control circuit and controller - Google Patents
Electric vehicle motor controller active release electric control circuit and controller Download PDFInfo
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- CN206471857U CN206471857U CN201621386519.9U CN201621386519U CN206471857U CN 206471857 U CN206471857 U CN 206471857U CN 201621386519 U CN201621386519 U CN 201621386519U CN 206471857 U CN206471857 U CN 206471857U
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Abstract
The utility model provides a kind of electric vehicle motor controller active release electric control circuit and controller, aim to solve the problem that and discharged in the prior art using inversion unit, the burden of controller has been aggravated, the abnormal conditions such as moment of torsion exception, rotating speed exception, discharge failure has easily occurred.A kind of electric vehicle motor controller active release electric control circuit, including electric discharge main circuit and charge/discharge control circuit；Electric discharge main circuit includes the discharge resistance R1 and IGCT VT1 being cascaded.A kind of electric vehicle motor controller, including high tension battery, inverter circuit, low-voltage power supply circuit, low tension battery, DC capacitor Cdc, ignition switch ON, electric discharge main circuit and low voltage control unit.The utility model is discharged by the way of Thyristors in series discharge resistance compared to using inversion unit, alleviates the burden of inversion unit and control program, is remained to ensure active discharge when inversion unit fails, is added reliability.
Description
Technical field
The utility model is related to electric vehicle motor controller electric capacity electric discharge field, more particularly to a kind of motor in electric automobile
Controller active release electric control circuit and controller.
Background technology
The high voltage direct current of electrokinetic cell on electric automobile is passed through three-phase inverting circuit by the main realization of electric machine controller
Be converted to three-phase alternating current and provide power supply for motor, and then power is provided for the operation of automobile.Electric machine controller mainly includes pre-
Charging circuit, dc-link capacitance, inverter circuit, low-voltage control circuit, low-voltage power supply circuit.Pre-charge circuit is electrokinetic cell
When being switched to dc bus, the dc-link capacitance being connected in parallel on dc bus is charged in advance, so as to avoid big wave
Gush electric current.The ripple voltage that switching device in dc-link capacitance reduction inverter circuit is produced in frequent movement.Inversion electricity
Road then completes DC voltage to the conversion of three-phase alternating current.The function of low-voltage control circuit is that whole electric machine controller is monitored and controlled
Working condition, logic and the communication with external equipment.Charge/discharge control circuit is used for dc-link capacitance residual charge of releasing.It is low
Press the source of power supply circuit low-tension supply for needed for inside whole controller, when automobile ignition switch ON is connected, low-voltage power supply
Circuit works.
There is the dc-link capacitance of Large Copacity in the electric machine controller of electric automobile, after ignition switch ON disconnections, electricity
Machine controller loses low-tension supply, and inverter circuit is connected with electrokinetic cell also disconnecting circuit.Dc-link capacitance is because be energy storage
Device, after inverter circuit and electrokinetic cell are disconnected, is still high pressure on dc bus, will still have a large amount of electric charges,
If without outside discharge circuit, the electric charge on dc-link capacitance will be remained for a long time, after artificially cover is opened
There is careless manipulation and the person gets an electric shock or causes electric conductor to contact with each other and cause component damage.
In existing active discharge control system, electric discharge uses inverter, the monitoring of active discharge control unit, judgement
The state of inverter, PWM occurs module and produces discharge waveform, and driving inverter discharges dc-link capacitance, works as bus
After voltage drop to a certain extent on electric capacity, the control circuit of inverter will power down, active discharge strategy is stopped, entirely
End-of-job.In whole process, the power supply circuit of active discharge control unit comes from electric automobile ignition switch ON, works as igniting
After when switch ON disconnects, the low-voltage power supply of electric machine controller will no longer be derived from ignition switch ON, if without other power supplies
Source, data processing chip in active discharge control unit will instant power-down, then data will be caused not to be in time for
Preserve or other rough sledding, bus capacitor also can not just discharge.Therefore, existing scheme is used after ignition switch ON disconnections
High-tension electricity on bus capacitor is converted into low tension, thus continues to power to active discharge control unit, realizes ignition switch
ON keeps low-voltage power supply for a period of time to complete the data preservation of digital processing chip and put dc-link capacitance after disconnecting
The functions such as electricity.Because inversion unit is as motor-driven important component, there is vital influence on traffic safety,
The burden that active discharge has aggravated controller is carried out using inversion unit, abnormal moment of torsion, rotating speed exception, discharge failure easily occurs
Etc. abnormal conditions.
Utility model content
The utility model provides a kind of electric vehicle motor controller active release electric control circuit and controller, it is intended to solve
Certainly discharged in the prior art using inversion unit, aggravated the burden of controller, moment of torsion exception, rotating speed easily occur different
Often, the abnormal conditions such as discharge failure.
In order to solve the above technical problems, the utility model is achieved through the following technical solutions：
A kind of electric vehicle motor controller active release electric control circuit, including electric discharge main circuit and charge/discharge control circuit；
Electric discharge main circuit includes the discharge resistance R1 and IGCT VT1 being cascaded；Charge/discharge control circuit includes control of discharge module
With ignition switch ON signal detection branch roads；The output end of ignition switch ON signal detection branch roads is connected with control of discharge module；Put
Electric control module is connected with IGCT VT1 and controls IGCT VT1 switch.
A kind of electric vehicle motor controller, including high tension battery, inverter circuit, low-voltage power supply circuit, low pressure electric power storage
Pond, DC capacitor Cdc, ignition switch ON, electric discharge main circuit and low voltage control unit.Inverter circuit includes inverter, positive direct-current
Bus and negative dc bus, inverter are connected by positive direct-current bus with the positive pole of high tension battery, and inverter is by bearing direct current
Bus is connected with the negative pole of high tension battery.DC capacitor Cdc is connected between positive direct-current bus and negative dc bus.Electric discharge master
Circuit includes the discharge resistance R1 and IGCT VT1 being cascaded, and it is female that discharge resistance R1 and IGCT VT1 is connected to positive direct-current
Between line and negative dc bus.Low tension battery is powered by low-voltage power supply circuit to low voltage control unit, and ignition switch ON is set
The switch of low-voltage power supply circuit is put on low-voltage power supply circuit and controlled, point is provided between low voltage control unit and ignition switch ON
Fire switch ON signal detection branch roads.Low voltage control unit is connected with IGCT VT1 and controls IGCT VT1 switch.
Further, controller also includes relay, and relay is arranged on positive direct-current bus and close to high tension battery
Output end.
Further, low voltage control unit includes control of discharge module, and ignition switch ON signal detection branch roads are arranged on electric discharge
Between control module and ignition switch ON, control of discharge module is connected with IGCT VT1 and controls IGCT VT1 switch.
Control of discharge module is a part for low voltage control unit, is easy to existing active release electric control circuit is direct
Applied to existing electric vehicle motor controller, simple possible, cost is low.
Compared with prior art the utility model has the advantages that：
1st, the present invention is discharged compared to using inversion unit, alleviated by the way of Thyristors in series discharge resistance
The burden of inversion unit and control program, remains to ensure active discharge when inversion unit fails, adds reliability.
2nd, discharged compared to using inversion unit, alleviate the burden of controller, active discharge is without considering inversion unit
Work-based logic, reduces monitoring unit, designs simpler.IGCT in the present invention is simple to control circuit requirement, gate pole electricity
Stream reaches to be only needed to keep load current to continue to flow after threshold values, without persistently giving trigger signal, is controlled simple and convenient.
3rd, low pressure etc. is transformed into using DC bus-bar voltage after ignition switch ON disconnections compared to present low-voltage power supply mode
Mode, present invention power supply is directly controlled by ignition switch ON signals, need not be powered after ignition switch ON invalidating signals.
4th, the power supply of existing electric machine controller inversion control unit and the low-tension supply of master control borad are closed in ignition switch ON
DC bus-bar voltage is derived from after closing, then by the voltage conversion circuit of load, high pressure is converted into suitable inversion and drives electricity
Pressure and master control borad supply voltage, are that inversion and master control borad provide power supply.IGCT only needs to a given low pressure and touched in the present invention
Signalling, without persistently giving control signal, the conversion without high pressure to low pressure.
5th, existing active discharge scheme fails in inversion unit failure, if now motor still operating, can produce compared with
High inverse electromotive force, it is unfavorable to whole electric machine control system.In the present invention, the IGCT electric discharge of use, equivalent to extra increasing
Plus one and ensure again, remain to be normally carried out electric discharge when for inversion unit timeliness.
Brief description of the drawings
In order to illustrate more clearly of the technical scheme of the utility model embodiment, it will use below required in embodiment
Accompanying drawing be briefly described, it will be appreciated that the following drawings illustrate only some embodiments of the present utility model, therefore should not see
Work is the restriction to scope, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Other related accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is electric vehicle motor controller structural representation in the utility model.
Embodiment
In description of the present utility model, unless otherwise clearly defined and limited, term " installation ", " connected ", " company
Connect ", the term such as " fixation " should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integrally；
Can be mechanical connection or electrical connection；Can be directly connected to or be indirectly connected to by intermediary, can
To be connection or the interaction relationship of two elements of two element internals.For those of ordinary skills, may be used
To understand concrete meaning of the above-mentioned term in the utility model as the case may be.
Embodiment one：
Refering to Fig. 1, a kind of electric vehicle motor controller active release electric control circuit, including electric discharge main circuit and electric discharge are controlled
Circuit processed；Electric discharge main circuit includes the discharge resistance R1 and IGCT VT1 being cascaded；Charge/discharge control circuit includes electric discharge and controlled
Molding block and ignition switch ON signal detection branch roads；The output end of ignition switch ON signal detection branch roads and control of discharge module phase
Even；Control of discharge module is connected with IGCT VT1 and controls IGCT VT1 switch.Control of discharge module is processor.
Processor is control of discharge module, and ON signal detection schemes have following two modes：
The first：If detection needs isolation, needed signal between ON signals and processor with isolating devices such as optocouplers
Deliver to processor.The state of ON signals is judged by processor again.
Second：If detection need not be isolated, ON signals can be delivered into processor by simple level conversion.Again
The state of ON signals is judged by processor.
Embodiment two：
Refering to Fig. 1, a kind of electric vehicle motor controller, including high tension battery, low-voltage power supply circuit, inverter circuit,
Low tension battery, DC capacitor Cdc, ignition switch ON, electric discharge main circuit and low voltage control unit.
Inverter circuit includes inverter, positive direct-current bus and negative dc bus, and inverter passes through positive direct-current bus and high pressure
The positive pole of battery is connected, and inverter is connected by negative dc bus with the negative pole of high tension battery.DC capacitor Cdc is connected to
Between positive direct-current bus and negative dc bus.Electric discharge main circuit includes the discharge resistance R1 and IGCT VT1 being cascaded, and puts
Resistance R1 and IGCT VT1 are connected between positive direct-current bus and negative dc bus.
Low tension battery is powered by low-voltage power supply circuit to low voltage control unit, and ignition switch ON is arranged on low-voltage power supply
On circuit and the switch of low-voltage power supply circuit is controlled, ignition switch ON signals are provided between low voltage control unit and ignition switch ON
Detection branch.Low voltage control unit is connected with IGCT VT1 and controls IGCT VT1 switch.Low voltage control unit includes putting
Electric control module, ignition switch ON signal detection branch roads are arranged between control of discharge module and ignition switch ON, control of discharge
Module is connected with IGCT VT1 and controls IGCT VT1 switch.Low voltage control unit is processor.
Controller be also arranged on including relay K1 and relay K2, relay K1 and relay K2 on positive direct-current bus and
Close to the output end of high tension battery, relay K2 is in series with parallel with K1 after resistance R2.
1 pair of operation principle of the present utility model is further illustrated below in conjunction with the accompanying drawings：
Original state, relay K1, K2 when electric automobile ignition switch ON is connected, that is, light a fire all in separated position
ON closures are switched, now low tension battery is powered by low-voltage power supply circuit to low voltage control unit.
After electric automobile parking, ignition switch ON disconnects, and low voltage control unit detects ON blackouts, to IGCT
VT1 sends active discharge trigger signal, turns on IGCT VT1, IGCT VT1, discharge resistance R1 and DC capacitor Cdc are formed
Electric charge on the discharge loop of one closure, DC capacitor Cdc is discharged rapidly, and voltage is dropped to below safe voltage, and voltage declines
Time t1 together decided on by resistance R1 resistances, electric capacity Cdc capacity and electric capacity Cdc initial voltages.Make what VT1 was turned on due to sending
Energy very little required for active discharge trigger signal, after this strategy execution, the energy kept in inside low-voltage power supply circuit
It is not enough to continue as low-voltage control circuit to power, low voltage control unit is in power down closed mode, and discharge process terminates.
Specific embodiment of the utility model is the foregoing is only, but technical characteristic of the present utility model is not limited to
This, any those skilled in the art is in field of the present utility model, and the change or modification made all are covered new in this practicality
Among the scope of the claims of type.
Claims (4)
1. a kind of electric vehicle motor controller active release electric control circuit, it is characterized in that：Controlled including electric discharge main circuit and electric discharge
Circuit processed；Electric discharge main circuit includes the discharge resistance R1 and IGCT VT1 being cascaded；Charge/discharge control circuit includes electric discharge and controlled
Molding block and ignition switch ON signal detection branch roads；The output end of ignition switch ON signal detection branch roads and control of discharge module phase
Even；Control of discharge module is connected with IGCT VT1 and controls IGCT VT1 switch.
2. a kind of electric vehicle motor controller, it is characterized in that：Including high tension battery, inverter circuit, low tension battery, direct current
Electric capacity Cdc, ignition switch ON, low-voltage power supply circuit, electric discharge main circuit and low voltage control unit；
Inverter circuit includes inverter, positive direct-current bus and negative dc bus, and inverter passes through positive direct-current bus and high voltage electric storage
The positive pole in pond is connected, and inverter is connected by negative dc bus with the negative pole of high tension battery；
DC capacitor Cdc is connected between positive direct-current bus and negative dc bus；
Electric discharge main circuit includes the discharge resistance R1 and IGCT VT1 being cascaded, and discharge resistance R1 is connected with IGCT VT1
Between positive direct-current bus and negative dc bus；
Low tension battery is powered by low-voltage power supply circuit to low voltage control unit, and ignition switch ON is arranged on low-voltage power supply circuit
The switch of low-voltage power supply circuit is gone up and controlled, ignition switch ON signal detections are provided between low voltage control unit and ignition switch ON
Branch road；
Low voltage control unit is connected with IGCT VT1 and controls IGCT VT1 switch.
3. a kind of electric vehicle motor controller according to claim 2, it is characterized in that：Controller also includes relay,
Relay is arranged on positive direct-current bus and close to the output end of high tension battery.
4. a kind of electric vehicle motor controller according to claim 2, it is characterized in that：Low voltage control unit includes electric discharge
Control module, ignition switch ON signal detection branch roads are arranged between control of discharge module and ignition switch ON, control of discharge mould
Block is connected with IGCT VT1 and controls IGCT VT1 switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621386519.9U CN206471857U (en) | 2016-12-16 | 2016-12-16 | Electric vehicle motor controller active release electric control circuit and controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621386519.9U CN206471857U (en) | 2016-12-16 | 2016-12-16 | Electric vehicle motor controller active release electric control circuit and controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206471857U true CN206471857U (en) | 2017-09-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621386519.9U Expired - Fee Related CN206471857U (en) | 2016-12-16 | 2016-12-16 | Electric vehicle motor controller active release electric control circuit and controller |
Country Status (1)
| Country | Link |
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| CN (1) | CN206471857U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106655372A (en) * | 2016-12-16 | 2017-05-10 | 成都雅骏新能源汽车科技股份有限公司 | Active discharge control circuit of motor controller of electric vehicle and controller |
| CN107681884A (en) * | 2017-10-23 | 2018-02-09 | 北京新能源汽车股份有限公司 | A kind of automobile air conditioner compressor and automobile |
| CN109149714A (en) * | 2018-09-26 | 2019-01-04 | 河南森源鸿马电动汽车有限公司 | A kind of charging controller device and method |
| CN110311584A (en) * | 2019-07-26 | 2019-10-08 | 阳光电源股份有限公司 | A kind of inverter and photovoltaic parallel in system |
| CN113015649A (en) * | 2018-08-03 | 2021-06-22 | 美达系统有限公司 | Active discharge system for electric or hybrid vehicle |
-
2016
- 2016-12-16 CN CN201621386519.9U patent/CN206471857U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106655372A (en) * | 2016-12-16 | 2017-05-10 | 成都雅骏新能源汽车科技股份有限公司 | Active discharge control circuit of motor controller of electric vehicle and controller |
| CN107681884A (en) * | 2017-10-23 | 2018-02-09 | 北京新能源汽车股份有限公司 | A kind of automobile air conditioner compressor and automobile |
| CN107681884B (en) * | 2017-10-23 | 2021-03-23 | 北京新能源汽车股份有限公司 | Automobile air conditioner compressor and automobile |
| CN113015649A (en) * | 2018-08-03 | 2021-06-22 | 美达系统有限公司 | Active discharge system for electric or hybrid vehicle |
| CN109149714A (en) * | 2018-09-26 | 2019-01-04 | 河南森源鸿马电动汽车有限公司 | A kind of charging controller device and method |
| CN110311584A (en) * | 2019-07-26 | 2019-10-08 | 阳光电源股份有限公司 | A kind of inverter and photovoltaic parallel in system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170905 Termination date: 20211216 |
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| CF01 | Termination of patent right due to non-payment of annual fee |