CN105680417A - Active short circuit control circuit and control method - Google Patents
Active short circuit control circuit and control method Download PDFInfo
- Publication number
- CN105680417A CN105680417A CN201610205984.6A CN201610205984A CN105680417A CN 105680417 A CN105680417 A CN 105680417A CN 201610205984 A CN201610205984 A CN 201610205984A CN 105680417 A CN105680417 A CN 105680417A
- Authority
- CN
- China
- Prior art keywords
- nand gate
- circuit
- input port
- signal
- main control
- 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.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
- B60L3/0023—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train
- B60L3/0046—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train relating to electric energy storage systems, e.g. batteries or capacitors
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/18—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for batteries; for accumulators
Abstract
The invention relates to an active short circuit control circuit and a control method. The active short circuit control circuit comprises a sensor, a bus current detection circuit, a main control chip and an active short-circuit circuit. The sensor is connected with the bus current detection circuit; the sensor comprises a current sensor and a voltage sensor; the bus current detection circuit is connected with an input port of the main control chip; and the main control chip is connected with the active short-circuit circuit through a main control chip port output module. Through improvement of the bus current detection circuit and the active short-circuit circuit as well as structure improvement of the active short-circuit circuit under the condition of failure of the main control chip, execution of active short-circuit control is realized.
Description
Technical field
The invention belongs to electric machine controller and security system technical field, particularly relate to a kind of actively short-circuit control circuit and control method.
Background technology
Becoming under the background of the mainstream of the times at low-carbon economy, electric automobile becomes the Main way of current development of automobile. Along with constantly advancing of electric automobile, powerful motor and controller are come out one after another, vehicle is in a failure mode, particularly under high speed failure condition, bus is counter, and to fill the injury of current versus cell group very big, jeopardizes car load safety, in order to prevent the generation of this type of situation, a set of active shorting system need to be designed, to prevent the generation overcharged.
The electric machine controller input that current new-energy automobile uses is generally high-pressure system, in order to prevent when fault mode the injury to electronic devices and components, prior art is when breaking down, particularly when high vehicle speeds, adopt the scheme of switch-off power components and parts, but this scheme can produce negative current, and negative torque can be produced, thus battery is charged, battery is caused damage.
On severe hybrid power vehicle; if this kind of fault mode occurs; the simple scheme adopting switch-off power components and parts is irrational; under this fault mode; need to drive motor with car load to disengage; using motor as load, the electric current under high speed conditions is discharged, reach the purpose of protection battery and personnel.
Summary of the invention
It is an object of the invention to provide a kind of actively short-circuit control circuit and control method, to solve vehicle in a failure mode, bus is counter to be filled current versus cell group and partially listens then dark injury, implements actively fault control.
The present invention is achieved by the following technical solutions:
A kind of actively short-circuit control circuit, including sensor, bus current testing circuit, main control chip and active short circuit current;
Described sensor is connected with described bus current testing circuit; Described sensor includes current sensor and voltage sensor;
Described bus current testing circuit is connected with the input port of described main control chip;
Described main control chip is connected with described active short circuit current by main control chip port output module.
Described bus current testing circuit includes the first amplifier and the second amplifier; Described current sensor is connected with the first input end of described first amplifier; Second input of described first amplifier and the outfan of described first amplifier are all connected with the first input end of described second amplifier;
Described voltage sensor is connected with the second input of described second amplifier; The outfan of described second amplifier is connected with the input port of described main control chip.
Described active short circuit current includes the first wiring and the second wiring; Described first wiring connects the first input port of the first NAND gate, and described first wiring connects the first input port of the second NAND gate;
Described second wiring connects the second input port of the first NAND gate, and described second wiring connects the first input port of the 3rd NAND gate;
The outfan of described first NAND gate connects the second input port of described second NAND gate and the second input port of described 3rd NAND gate respectively;
The output port of described second NAND gate connects the first input port of the 4th NAND gate, and the output port of described 3rd NAND gate connects the second input port of the 4th NAND gate;
The output port of described 4th NAND gate connects the first input port of the 5th NAND gate;
The output port of described 5th NAND gate connects the first input port of the first input port of the 6th NAND gate, the second input port of the 6th NAND gate and the 7th NAND gate respectively;
The output port of described 7th NAND gate connects the second input port of the 5th NAND gate;
Second input port of the 7th NAND gate is connected with short circuit reset circuit;
The output port of the 6th NAND gate connects the first external interface and the first input port of the 8th NAND gate respectively; Second input port ground connection of the 8th NAND gate, the output port of the 8th NAND gate connects the second external interface.
Further, also including and door, described and the first input port of door with described 4th NAND gate output port is connected, and the first input port of described output port with door and the 5th NAND gate is connected;
Described the second input port with door is connected with three-phase over-current signal line; Described the 3rd input port with door is connected with bus high-voltage signal line.
Described short circuit reset circuit includes audion; The colelctor electrode of described audion is connected with the second input port of described 7th NAND gate.
Described current sensor is Hall current sensor.
The control method of any of the above-described active short-circuit control circuit, the current signal of sensor Real-time Collection bus and voltage signal are to bus current testing circuit, and the output signal of described bus current testing circuit is supplied to described main control chip by the input port of main control chip;
If described main control chip is by after calculating, described output signal value is bus overcurrent, and described main control chip gives actively short circuit current by the fault-signal of main control chip port output module output two-way same level;
Described fault-signal is by, after described active short circuit current, showing that the drive signal level of three bridges is identical with described fault-signal level, and the drive signal level of lower three bridges is contrary with described fault-signal level;
The driving signal driving signal and described lower three bridges of described upper three bridges is all sent to driving module; Described driving module controls described upper three bridge conductings, and described lower three bridges turn off, and bus current is discharged by motor, it is achieved actively fault control.
Further, the current signal of described sensor acquisition is supplied directly to main control chip, compares with setting value, if described current signal is more than setting value, then fault-signal is directly sent to driving module by described main control chip; Described driving module controls described upper three bridge conductings, and described lower three bridges turn off, and bus current is discharged by motor; Meanwhile, described fault-signal is sent to entire car controller by described main control chip.
Further, the current signal of described sensor acquisition is supplied directly to described main control chip analog quantity input, for calculating the torque value of motor output, simultaneously, described main control chip detects whether described current signal reaches to set threshold values, if described current signal exceedes setting threshold values, described main control chip produces low level fault-signal, and locking pulse width modulator exports.
The invention has the beneficial effects as follows:
The present invention is by the improvement to bus current testing circuit and active short circuit current, and actively the structure of short circuit current is improved under main control chip failure conditions, it is achieved perform actively fault control.
Accompanying drawing explanation
Fig. 1 is the present invention actively short-circuit control circuit entire block diagram;
Fig. 2 is bus current Acquisition Circuit schematic diagram of the present invention;
Fig. 3 is the present invention actively short circuit current schematic diagram.
Description of reference numerals
01 current signal, 02 first amplifier, 03 second amplifier, 04 voltage signal, 05 first wiring, 06 second wiring, 07 first NAND gate, 08 second NAND gate, 09 the 3rd NAND gate, 010 the 4th NAND gate, 011 the 5th NAND gate, 012 the 6th NAND gate, 013 the 7th NAND gate, 014 the 8th NAND gate, 015 and door, 016 bus high-voltage signal line, 017 three-phase over-current signal line, 018 audion, 019 short circuit reset circuit, on 020, three bridge height are flat drives signal, and 021 time three bridge low levels drive signal.
Detailed description of the invention
Describing technical scheme by the following examples in detail, below example is merely illustrative of, and is only capable of for explaining and illustrate technical scheme, and is not to be construed as the restriction to technical solution of the present invention.
In order to make motor-controller system normal operation, bus current must be maintained in certain limit, if bus current is too high, beyond the ability to bear of battery, will damage set of cells, it is necessary to take corresponding protective measure.
The present invention provides a kind of actively short-circuit control circuit, including sensor, bus current testing circuit, main control chip and active short circuit current.
Described sensor is connected with described bus current testing circuit; Described sensor includes current sensor and voltage sensor; In this application, current sensor is Hall element; Your sensor of zero in this application is the HAH1DR500-S of LEM company, input current scope (-500A < I < 500A), output voltage range 0.5V-4.5V.
In the present embodiment, Hall current sensor modulate circuit it is additionally provided with between Hall element and bus current testing circuit, total U, V, W and bus four phase, the input signal of each phase is the output voltage signal of Hall current sensor, its effect is that the output voltage signal to Hall current sensor is nursed one's health, and the ac voltage signal making input main control chip must between 0-3.3V. Adopting voltage follower between Hall current sensor, prime voltage sampling circuit is not affected by rear class impedance.
Described bus current testing circuit is connected with the input port of described main control chip.
Described main control chip is connected with described active short circuit current by main control chip port output module.
As in figure 2 it is shown, described bus current testing circuit includes the first amplifier 02 and the second amplifier 03; Described current sensor is connected with the first input end of described first amplifier; Second input of described first amplifier and the outfan of described first amplifier are all connected with the first input end of described second amplifier.
Described voltage sensor is connected with the second input of described second amplifier; The outfan of described second amplifier is connected with the input port of described main control chip.
The current signal 01 of Hall current sensor Real-time Collection is by, after nursing one's health, exporting in the form of a voltage, after filter circuit, voltage follow is realized through the first amplifier 02, to eliminate noise jamming, in the present embodiment, the first amplifier 02 model is AD8544ARZ.
The voltage signal of voltage sensor collection and after the amplified current signal of the first amplifier realizes differential amplification by the second amplifier 03 together, by the second amplifier output voltage signal 04, this voltage signal 04 is supplied to main control chip by the input port of main control chip.
Voltage signal and design load are compared by main control chip, voltage signal values then illustrates bus overcurrent more than design load, now, main control chip gives actively short circuit current, fault-signal respectively Fisrt fault signal and the second fault-signal by the fault-signal of main control chip port output module two same level of output.
As it is shown on figure 3, described active short circuit current includes the first wiring 05 and the second wiring 06; Described first wiring 05 connects the first input port of the first NAND gate 07, and described first wiring 05 connects the first input port of the second NAND gate 08;
Described second wiring 06 connects the second input port of the first NAND gate 07, and described second wiring 06 connects the first input port of the 3rd NAND gate 09;
The outfan of described first NAND gate 07 connects the second input port of described second NAND gate 08 and the second input port of described 3rd NAND gate 09 respectively;
The output port of described second NAND gate 08 connects the first input port of the 4th NAND gate 010, and the output port of described 3rd NAND gate 09 connects the second input port of the 4th NAND gate 010;
The output port of described 4th NAND gate 010 connects the first input port of the 5th NAND gate 011;
The output port of described 5th NAND gate 011 connects the first input port of the first input port of the 6th NAND gate 012, the second input port of the 6th NAND gate 012 and the 7th NAND gate 013 respectively;
The output port of described 7th NAND gate 013 connects the second input port of the 5th NAND gate 011;
Second input port of the 7th NAND gate 013 is connected with short circuit reset circuit 019;
The output port of the 6th NAND gate 012 connects the first external interface and the first input port of the 8th NAND gate 014 respectively; Second input port ground connection of the 8th NAND gate 014, the output port of the 8th NAND gate 014 connects the second external interface.
In the present embodiment, first NAND gate the 07, second NAND gate the 08, the 3rd NAND gate 09 and the 4th NAND gate 010 can be passed through to be integrated into integrated circuit; 5th NAND gate the 011, the 6th NAND gate the 012, the 7th NAND gate 013 and the 8th NAND gate 014 can be passed through to be integrated into integrated circuit.
Being high level at this for Fisrt fault signal and the second fault-signal to illustrate, Fisrt fault signal passes to actively short circuit current by the first wiring 05; Second fault-signal passes to actively short circuit current by the second wiring 06. Fisrt fault signal and the second fault-signal are by, after first NAND gate the 07, second NAND gate the 08, the 3rd NAND gate 09 and the 4th NAND gate 010, being output as high level fault signal.
In the present embodiment, also including and door 015, described and the first input port of door 015 with described 4th NAND gate 010 output port is connected, and the first input port of described output port with door 015 and the 5th NAND gate 011 is connected;
Described the second input port with door 015 is connected with three-phase over-current signal line 017; Described the 3rd input port with door 015 is connected with bus high-voltage signal line 016.
High level fault signal and three-phase over-current signal and bus high-voltage signal phase with, obtain upper three bridge high level by the 5th NAND gate the 011, the 6th NAND gate 012 and the 7th NAND gate 013 and drive signal 020, obtain lower three bridge low levels by the 8th NAND gate 014 and drive signal 021.
And by increasing short circuit reset circuit 019, described short circuit reset circuit includes audion 018; The colelctor electrode of described audion 018 is connected with the second input port of described 7th NAND gate 013.
By above-mentioned logic gates, high level fault signal condition is latched, and in the way of driving signal, be sent to driving module, drive module to control upper three bridge conductings, down three bridges and turn off, line line overcurrent is discharged by motor, it is achieved the actively realization of short circuit.
The present invention also provides for the control method of above-mentioned active short-circuit control circuit, as shown in Figure 1, the current signal of sensor Real-time Collection bus and voltage signal are to bus current testing circuit, and the output signal of described bus current testing circuit is supplied to described main control chip by the input port of main control chip.
If described main control chip is by after calculating, described output signal value is bus overcurrent, and described main control chip gives actively short circuit current by the fault-signal of main control chip port output module output two-way same level.
Described fault-signal is by, after described active short circuit current, showing that the drive signal level of three bridges is identical with described fault-signal level, and the drive signal level of lower three bridges is contrary with described fault-signal level.
The driving signal driving signal and described lower three bridges of described upper three bridges is all sent to driving module; Described driving module controls described upper three bridge conductings, and described lower three bridges turn off, and bus current is discharged by motor, it is achieved actively fault control.
Damage set of cells in order to prevent bus current excessive, main control chip is provided with current protecting function. The current signal of described sensor acquisition is by after the conditioning of Hall current sensor modulate circuit, it is supplied directly to main control chip, compares with setting value, if described current signal is more than setting value, then described main control chip turns off actively short circuit current, and fault-signal is directly sent to driving module; Described driving module controls described upper three bridge conductings, and described lower three bridges turn off, and bus current is discharged by motor; Meanwhile, described fault-signal is sent to entire car controller by described main control chip.
Under main control chip failure conditions, the current signal of described sensor acquisition is supplied directly to described main control chip analog quantity input, for calculating the torque value of motor output, simultaneously, described main control chip detects whether described current signal reaches to set threshold values, if described current signal exceedes setting threshold values, described main control chip produces low level fault-signal, and locking pulse width modulator exports.
Although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, being appreciated that and these embodiments can be carried out multiple change, amendment, replacement and modification without departing from the principles and spirit of the present invention, the scope of the invention and equivalency.
Claims (9)
1. an active short-circuit control circuit, it is characterised in that: include sensor, bus current testing circuit, main control chip and active short circuit current;
Described sensor is connected with described bus current testing circuit; Described sensor includes current sensor and voltage sensor;
Described bus current testing circuit is connected with the input port of described main control chip;
Described main control chip is connected with described active short circuit current by main control chip port output module.
2. active short-circuit control circuit according to claim 1, it is characterised in that: described bus current testing circuit includes the first amplifier and the second amplifier; Described current sensor is connected with the first input end of described first amplifier; Second input of described first amplifier and the outfan of described first amplifier are all connected with the first input end of described second amplifier;
Described voltage sensor is connected with the second input of described second amplifier; The outfan of described second amplifier is connected with the input port of described main control chip.
3. active short-circuit control circuit according to claim 1, it is characterised in that: described active short circuit current includes the first wiring and the second wiring; Described first wiring connects the first input port of the first NAND gate, and described first wiring connects the first input port of the second NAND gate;
Described second wiring connects the second input port of the first NAND gate, and described second wiring connects the first input port of the 3rd NAND gate;
The outfan of described first NAND gate connects the second input port of described second NAND gate and the second input port of described 3rd NAND gate respectively;
The output port of described second NAND gate connects the first input port of the 4th NAND gate, and the output port of described 3rd NAND gate connects the second input port of the 4th NAND gate;
The output port of described 4th NAND gate connects the first input port of the 5th NAND gate;
The output port of described 5th NAND gate connects the first input port of the first input port of the 6th NAND gate, the second input port of the 6th NAND gate and the 7th NAND gate respectively;
The output port of described 7th NAND gate connects the second input port of the 5th NAND gate;
Second input port of the 7th NAND gate is connected with short circuit reset circuit;
The output port of the 6th NAND gate connects the first external interface and the first input port of the 8th NAND gate respectively; Second input port ground connection of the 8th NAND gate, the output port of the 8th NAND gate connects the second external interface.
4. active short-circuit control circuit according to claim 3, it is characterized in that: also include and door, described and the first input port of door with described 4th NAND gate output port is connected, and the first input port of described output port with door and the 5th NAND gate is connected;
Described the second input port with door is connected with three-phase over-current signal line; Described the 3rd input port with door is connected with bus high-voltage signal line.
5. active short-circuit control circuit according to claim 3, it is characterised in that: described short circuit reset circuit includes audion; The colelctor electrode of described audion is connected with the second input port of described 7th NAND gate.
6. active short-circuit control circuit according to claim 1, it is characterised in that: described current sensor is Hall current sensor.
7. the control method of active short-circuit control circuit any one of the claims 1 to 6, it is characterized in that: the current signal of sensor Real-time Collection bus and voltage signal are to bus current testing circuit, and the output signal of described bus current testing circuit is supplied to described main control chip by the input port of main control chip;
If described main control chip is by after calculating, described output signal value is bus overcurrent, and described main control chip gives actively short circuit current by the fault-signal of main control chip port output module output two-way same level;
Described fault-signal is by, after described active short circuit current, showing that the drive signal level of three bridges is identical with described fault-signal level, and the drive signal level of lower three bridges is contrary with described fault-signal level;
The driving signal driving signal and described lower three bridges of described upper three bridges is all sent to driving module; Described driving module controls described upper three bridge conductings, and described lower three bridges turn off, and bus current is discharged by motor, it is achieved actively fault control.
8. the control method of active short-circuit control circuit according to claim 7, it is characterized in that: the current signal of described sensor acquisition is supplied directly to main control chip, compare with setting value, if described current signal is more than setting value, then fault-signal is directly sent to driving module by described main control chip; Described driving module controls described upper three bridge conductings, and described lower three bridges turn off, and bus current is discharged by motor; Meanwhile, described fault-signal is sent to entire car controller by described main control chip.
9. the control method of active short-circuit control circuit according to claim 7, it is characterized in that: the current signal of described sensor acquisition is supplied directly to described main control chip analog quantity input, for calculating the torque value of motor output, simultaneously, described main control chip detects whether described current signal reaches to set threshold values, if described current signal exceedes setting threshold values, described main control chip produces low level fault-signal, and locking pulse width modulator exports.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610205984.6A CN105680417B (en) | 2016-03-31 | 2016-03-31 | A kind of active short-circuit control circuit and control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610205984.6A CN105680417B (en) | 2016-03-31 | 2016-03-31 | A kind of active short-circuit control circuit and control method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105680417A true CN105680417A (en) | 2016-06-15 |
| CN105680417B CN105680417B (en) | 2018-09-11 |
Family
ID=56308341
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610205984.6A Active CN105680417B (en) | 2016-03-31 | 2016-03-31 | A kind of active short-circuit control circuit and control method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105680417B (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107124124A (en) * | 2017-04-01 | 2017-09-01 | 苏州汇川联合动力系统有限公司 | A kind of motor threephase stator winding active shorting system and method |
| CN107472077A (en) * | 2016-11-30 | 2017-12-15 | 宝沃汽车（中国）有限公司 | The control method of drive system, device and there is its vehicle |
| CN108521118A (en) * | 2018-03-30 | 2018-09-11 | 重庆长安汽车股份有限公司 | The protection control circuit of automobile power drive system |
| CN108696226A (en) * | 2018-06-01 | 2018-10-23 | 阳光电源股份有限公司 | A kind of electric machine controller |
| CN110112707A (en) * | 2019-05-17 | 2019-08-09 | 上海金脉电子科技有限公司 | Electrical fault processing unit |
| CN110474297A (en) * | 2019-08-30 | 2019-11-19 | 合肥巨一动力系统有限公司 | A kind of active protective loop of electric machine controller |
| CN116207709A (en) * | 2021-11-30 | 2023-06-02 | 宇通客车股份有限公司 | Driving motor system and fault protection method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011055582A (en) * | 2009-08-31 | 2011-03-17 | Denso Corp | Driving apparatus for vehicle-mounted electric motor |
| CN103066556A (en) * | 2012-12-04 | 2013-04-24 | 联合汽车电子有限公司 | Overvoltage protection method of high-voltage direct current system |
| CN203481800U (en) * | 2013-09-29 | 2014-03-12 | 长春工业大学 | Protective device for motor inverter for new energy vehicle |
| CN104442405A (en) * | 2014-12-04 | 2015-03-25 | 安徽巨一自动化装备有限公司 | Active short-circuit protection circuit for electric drive system of electric automobile |
| CN105262059A (en) * | 2015-09-30 | 2016-01-20 | 奇瑞汽车股份有限公司 | Active short-circuit protection circuit of electric automobile |
-
2016
- 2016-03-31 CN CN201610205984.6A patent/CN105680417B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011055582A (en) * | 2009-08-31 | 2011-03-17 | Denso Corp | Driving apparatus for vehicle-mounted electric motor |
| CN103066556A (en) * | 2012-12-04 | 2013-04-24 | 联合汽车电子有限公司 | Overvoltage protection method of high-voltage direct current system |
| CN203481800U (en) * | 2013-09-29 | 2014-03-12 | 长春工业大学 | Protective device for motor inverter for new energy vehicle |
| CN104442405A (en) * | 2014-12-04 | 2015-03-25 | 安徽巨一自动化装备有限公司 | Active short-circuit protection circuit for electric drive system of electric automobile |
| CN105262059A (en) * | 2015-09-30 | 2016-01-20 | 奇瑞汽车股份有限公司 | Active short-circuit protection circuit of electric automobile |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107472077A (en) * | 2016-11-30 | 2017-12-15 | 宝沃汽车（中国）有限公司 | The control method of drive system, device and there is its vehicle |
| CN107472077B (en) * | 2016-11-30 | 2019-11-22 | 宝沃汽车（中国）有限公司 | Control method, device and the vehicle with it of drive system |
| CN107124124A (en) * | 2017-04-01 | 2017-09-01 | 苏州汇川联合动力系统有限公司 | A kind of motor threephase stator winding active shorting system and method |
| CN107124124B (en) * | 2017-04-01 | 2019-12-17 | 苏州汇川联合动力系统有限公司 | Active short circuit system and method for three-phase stator winding of motor |
| CN108521118A (en) * | 2018-03-30 | 2018-09-11 | 重庆长安汽车股份有限公司 | The protection control circuit of automobile power drive system |
| CN108696226A (en) * | 2018-06-01 | 2018-10-23 | 阳光电源股份有限公司 | A kind of electric machine controller |
| US10581369B2 (en) | 2018-06-01 | 2020-03-03 | Sungrow Power Supply Co., Ltd. | Motor controller |
| CN110112707A (en) * | 2019-05-17 | 2019-08-09 | 上海金脉电子科技有限公司 | Electrical fault processing unit |
| CN110474297A (en) * | 2019-08-30 | 2019-11-19 | 合肥巨一动力系统有限公司 | A kind of active protective loop of electric machine controller |
| CN116207709A (en) * | 2021-11-30 | 2023-06-02 | 宇通客车股份有限公司 | Driving motor system and fault protection method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105680417B (en) | 2018-09-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105680417A (en) | Active short circuit control circuit and control method | |
| CN101073990B (en) | Power-supply system with safety protector for electric automobile and its control method | |
| CN206038771U (en) | Electric automobile insulation resistance detection circuitry | |
| CN103439577B (en) | The insulation resistance detection system of electric automobile power battery and detection method | |
| CN104626996B (en) | Bus capacitance discharging system for electric automobile and control method of bus capacitance discharging system | |
| CN202923410U (en) | High-voltage protection system of power battery and vehicle | |
| CN104142433A (en) | Active type direct-current system insulation resistor detection method | |
| CN105150856A (en) | Fault diagnosis device and method of high-voltage system | |
| CN205509478U (en) | Electric automobile dc -to -ac converter protection device | |
| CN103568859B (en) | Battery monitoring system and semiconductor device | |
| CN102929167A (en) | Finished automobile intelligent controller of journey increasing type electromobile | |
| CN102624065A (en) | Charging-discharging control circuit of vehicular power battery pack | |
| US8737031B2 (en) | Voltage monitoring circuit, and vehicle equipped with same | |
| CN111319465B (en) | Abnormal protection device for running electric vehicle | |
| CN107579695A (en) | Energy feedback protection circuit and electric machine control system | |
| CN202159120U (en) | Power storage battery high voltage relay fault diagnosing circuit | |
| CN104502789A (en) | Grounding detection circuit of double-source subway engineering maintenance vehicle | |
| CN108899972A (en) | A kind of charging control circuit and its control method of charger | |
| CN103770655B (en) | A kind of high voltage protective system of electrokinetic cell and vehicle | |
| CN209001614U (en) | A kind of charging control circuit of charger | |
| CN204334409U (en) | Auxiliary Power Unit Controller used for electric vehicle | |
| CN204696641U (en) | A kind of equipment for the protection of high-tension battery using electricity system and the vehicle with this equipment | |
| CN110450662A (en) | A kind of identification of versatility charging pile accessory power supply and conversion circuit | |
| CN107493047B (en) | EPS-based motor drive axle control and diagnosis protection system | |
| CN203502562U (en) | Relay state detection circuit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: 230601 Anhui Province, Hefei City Industrial Park, the Peach Blossom Road No. 669 Applicant after: Anhui Jianghuai Automobile Group Limited by Share Ltd Address before: 230601 Anhui Province, Hefei City Industrial Park, the Peach Blossom Road No. 669 Applicant before: Anhui Jianghuai Automotive Co., Ltd. |
|
| COR | Change of bibliographic data | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |