CN109975648A - A kind of motor bridge circuit power switch tube short circuit online test method - Google Patents
A kind of motor bridge circuit power switch tube short circuit online test method Download PDFInfo
- Publication number
- CN109975648A CN109975648A CN201910333870.3A CN201910333870A CN109975648A CN 109975648 A CN109975648 A CN 109975648A CN 201910333870 A CN201910333870 A CN 201910333870A CN 109975648 A CN109975648 A CN 109975648A
- Authority
- CN
- China
- Prior art keywords
- bridge arm
- arm switching
- switching tube
- circuit
- motor
- 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.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/26—Testing of individual semiconductor devices
- G01R31/2607—Circuits therefor
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/34—Testing dynamo-electric machines
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
Abstract
The present invention provides a kind of motor bridge circuit power switch tube short circuit online test method, the following steps are included: opening all upper bridge arm switching tubes and turning off all lower bridge arm switching tubes, by presetting delay time post-sampling main circuit current value, lower bridge arm switching tube short-circuit alarming is carried out if main circuit current value is more than or equal to electric current threshold value, and it closes all upper and lower bridge arm switching tubes and stops detection program, continue to execute downwards if main circuit current value is less than electric current threshold value, all upper bridge arm switching tubes are turned off again and open all lower bridge arm switching tubes, it completes to judge upper bridge arm in relation to the detection of tube short circuit according to the identical detection judgment method of aforementioned lower bridge arm switch tube short circuit.This detection method is simple and fast but also with higher reliability, can realize effective on-line checking to bridge circuit power switch tube short trouble.
Description
Technical field
The present invention relates to circuit control detection technique fields, and in particular to a kind of motor bridge circuit power switch tube is short
Road online test method.
Background technique
The present inventor has found that available circuit controls detection technique for motor bridge circuit power after study
The detection of switching tube short trouble mostly uses greatly offline mode to carry out, and online test method is less and mostly complex, lacks
Weary convenience and reliability, thus need to solve this problem.
Summary of the invention
It is big for the detection of motor bridge circuit power switch tube short trouble for available circuit control detection technique
Offline mode is mostly used to carry out, and online test method is less and mostly complex, lacks the technology of convenience and reliability
Problem, the present invention provide a kind of motor bridge circuit power switch tube short circuit online test method.
In order to solve the above-mentioned technical problem, present invention employs the following technical solutions:
A kind of motor bridge circuit power switch tube short circuit online test method uses one kind in the self checking method
Three-phase bridge drive control circuit, the drive control circuit include DC power supply, bridge circuit, microprocessor and micro process
Driving circuit device input terminal connected current sensor and be connected with output end of microprocessor, on the bridge circuit includes
Bridge arm switching tube and lower bridge arm switching tube, the first main electrode of the upper bridge arm switching tube and the anode of DC power supply connect, institute
The winding for stating the second main electrode of bridge arm switching tube and the first main electrode of lower bridge arm switching tube and motor connects, under described
Second main electrode of bridge arm switching tube is connected through the cathode of current sensor and DC power supply, the upper bridge arm switching tube and lower bridge
The control electrode of arm switch pipe is by driving circuit drive control, and described detection method includes the following steps:
S1, all upper bridge arm switching tubes are opened and turn off all lower bridge arm switching tubes, by electricity after default delay time
Flow sensor samples main circuit current value at this time, if main circuit current value is more than or equal to electric current threshold value, judges that lower bridge arm is opened
It closes tube short circuit and carries out warning note, and close all upper and lower bridge arm switching tubes, detect program stopped；If main circuit current value is small
In electric current threshold value, then continue to execute step S2 downwards；
S2, all upper bridge arm switching tubes are then powered off and open all lower bridge arm switching tubes, after default delay time
Main circuit current value at this time is sampled by current sensor, if main circuit current value is more than or equal to electric current threshold value, bridge in judgement
Arm switch tube short circuit simultaneously carries out warning note, and closes all upper and lower bridge arm switching tubes, detects program stopped；If main circuit current
Value is less than electric current threshold value, then exits detection program.
Compared with prior art, motor bridge circuit power switch tube short circuit online test method provided by the invention,
It is first turned on all upper bridge arm switching tubes and turns off all lower bridge arm switching tubes, by default delay time post-sampling major loop electricity
Flow valuve carries out lower bridge arm switching tube short-circuit alarming if main circuit current value is more than or equal to electric current threshold value, that is, illustrates lower bridge arm
There is switch tube short circuit that main circuit current value is caused to have increased to electric current threshold value, needs to close all upper and lower bridge arm switches at this time
It manages and stops detecting program and carry out warning note, forbid motor to enter operation program, avoid failure propagation, further wait
User is handled, and continues to execute downwards if main circuit current value is less than electric current threshold value；Then all upper bridge arms are turned off again
Switching tube simultaneously opens all lower bridge arm switching tubes, completes according to the detection judgment method of aforementioned lower bridge arm switch tube short circuit to upper bridge
The detection of arm switch tube short circuit judges.It follows that the application essence according to be 〝 first open upper arm and turn off lower arm sampling sentence
Disconnected, then arm switch switches and samples what the step of judging 〞 was detected again up and down, thus detection method is simple and fast and has
Standby higher reliability can realize effective on-line checking to motor bridge circuit power switch tube short trouble.
Further, the motor is that three-phase bridge drives wye connection motor, and the bridge circuit includes upper bridge arm
Switching tube Q1, Q3 and Q5 and lower bridge arm switching tube Q2, Q4 and Q6, the first main electrode and direct current of described switching tube Q1, Q3 and Q5
The first of the anode connection of power supply, the second main electrode of the switching tube Q1 and the first main electrode of switching tube Q2 and motor around
One end connection of group, the second winding of the second main electrode of the switching tube Q3 and the first main electrode of switching tube Q4 and motor
One end connection, the tertiary winding of the second main electrode of the switching tube Q5 and the first main electrode of switching tube Q6 and motor
One end connection, the other end of the first winding of the motor, the second winding and the tertiary winding are interconnected to constitute a node,
The second main electrode of described switching tube Q2, Q4 and Q6 are connected through the cathode of current sensor and DC power supply, and the upper bridge arm is opened
The control electrode of pipe Q1, Q3 and Q5 and lower bridge arm switching tube Q2, Q4 and Q6 are closed by driving circuit drive control.
Further, delay time is preset in the step S1~S2 to be calculated using following formula:
Wherein, T is default delay time, and G is the total inductance of major loop, ImFor the major loop after default delay time T
Theoretical current value, U are direct current power source voltage.
Further, it is 312 μ s that delay time is preset in the step S1~S2.
Further, electric current threshold value is calculated using following formula in the step S1~S2:
Wherein, T is default delay time, and U is direct current power source voltage, and G is the total inductance of major loop, ImTo prolong by default
When time T after major loop theoretical current value, I0For the quiescent current of major loop after all upper and lower bridge arm switching tubes of closing, I is
Electric current threshold value.
Detailed description of the invention
Fig. 1 is a kind of drive control structural schematic diagram of three-phase bridge driving wye connection motor provided by the invention.
Specific embodiment
In order to be easy to understand the technical means, the creative features, the aims and the efficiencies achieved by the present invention, tie below
Conjunction is specifically illustrating, and the present invention is further explained.
In the description of the present invention, it is to be understood that, term " longitudinal direction ", " radial direction ", " length ", " width ", " thickness ",
The orientation of the instructions such as "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" or
Positional relationship is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of description of the present invention and simplification of the description, without
It is that the device of indication or suggestion meaning or element must have a particular orientation, be constructed and operated in a specific orientation, therefore not
It can be interpreted as limitation of the present invention.In the description of the present invention, unless otherwise indicated, the meaning of " plurality " is two or two
More than.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.
It please referring to shown in Fig. 1, the present invention provides a kind of motor bridge circuit power switch tube short circuit online test method,
A kind of three-phase bridge drive control circuit is used in the self checking method, the drive control circuit includes DC power supply, bridge
Formula circuit, microprocessor, the current sensor being connected with microprocessor input and the driving being connected with output end of microprocessor
Circuit, the bridge circuit include upper bridge arm switching tube and lower bridge arm switching tube, the first main electricity of the upper bridge arm switching tube
The anode of pole and DC power supply connects, the second main electrode of the upper bridge arm switching tube and the first main electrode of lower bridge arm switching tube
It is connect with the winding of motor, the second main electrode of the lower bridge arm switching tube connects through the cathode of current sensor and DC power supply
It connects, the control electrode of the upper bridge arm switching tube and lower bridge arm switching tube by driving circuit drive control, i.e., open by the described upper and lower bridge arm
The control electrode for closing pipe is connected with driving circuit, and described detection method includes the following steps:
S1, all upper bridge arm switching tubes are opened and turn off all lower bridge arm switching tubes, by electricity after default delay time
Flow sensor samples main circuit current value at this time, can specifically be led back at this time by the voltage on current sensor R1 to calculate
Road current value judges lower bridge arm switch tube short circuit and alarm to mention if main circuit current value is more than or equal to electric current threshold value
Show, and close all upper and lower bridge arm switching tubes, detects program stopped；If main circuit current value is less than electric current threshold value, continue
Step S2 is executed downwards；
S2, all upper bridge arm switching tubes are then powered off and open all lower bridge arm switching tubes, after default delay time
Main circuit current value at this time is sampled by current sensor, similarly can specifically be calculated by the voltage on current sensor R1
Main circuit current value at this time, if main circuit current value is more than or equal to electric current threshold value, bridge arm switch tube short circuit is gone forward side by side in judgement
Row warning note, and all upper and lower bridge arm switching tubes are closed, detect program stopped；If main circuit current value is less than electric current threshold
Value, then exit detection program.
Compared with prior art, motor bridge circuit power switch tube short circuit online test method provided by the invention,
It is first turned on all upper bridge arm switching tubes and turns off all lower bridge arm switching tubes, by default delay time post-sampling major loop electricity
Flow valuve carries out lower bridge arm switching tube short-circuit alarming if main circuit current value is more than or equal to electric current threshold value, that is, illustrates lower bridge arm
There is switch tube short circuit that main circuit current value is caused to have increased to electric current threshold value, needs to close all upper and lower bridge arm switches at this time
It manages and stops detecting program and carry out warning note, forbid motor to enter operation program, avoid failure propagation, further wait
User is handled, and continues to execute downwards if main circuit current value is less than electric current threshold value；Then all upper bridge arms are turned off again
Switching tube simultaneously opens all lower bridge arm switching tubes, completes according to the detection judgment method of aforementioned lower bridge arm switch tube short circuit to upper bridge
The detection of arm switch tube short circuit judges.It follows that the application essence according to be 〝 first open upper arm and turn off lower arm sampling sentence
Disconnected, then arm switch switches and samples what the step of judging 〞 was detected again up and down, thus detection method is simple and fast and has
Standby higher reliability can realize effective on-line checking to motor bridge circuit power switch tube short trouble.
As specific embodiment, please referring to shown in Fig. 1, the motor is that three-phase bridge drives wye connection motor,
The bridge circuit includes upper bridge arm switching tube Q1, Q3 and Q5 and lower bridge arm switching tube Q2, Q4 and Q6, described switching tube Q1, Q3
It is connected with the anode of the first main electrode of Q5 and DC power supply, the first of the second main electrode of the switching tube Q1 and switching tube Q2
One end of first winding L1 of main electrode and motor connects, and the first of the second main electrode of the switching tube Q3 and switching tube Q4
One end of second winding L2 of main electrode and motor connects, and the first of the second main electrode of the switching tube Q5 and switching tube Q6
One end of the tertiary winding L3 of main electrode and motor connects, the first winding L1, the second winding L2 and the third of the motor
The other end of winding L3 is interconnected to constitute a node, and the second main electrode of described switching tube Q2, Q4 and Q6 are through current sense
The connection of the cathode of device R1 and DC power supply, the control of described upper bridge arm switching tube Q1, Q3 and Q5 and lower bridge arm switching tube Q2, Q4 and Q6
Pole processed is connected by driving circuit drive control, i.e., the control electrode of described upper and lower bridge arm switching tube Q1~Q6 with driving circuit.And
The detection method of three-phase bridge driving wye connection motor bridge circuit power switch tube short circuit specifically includes in the present embodiment
Following steps:
S1, all upper bridge arm switching tube Q1, Q3 and Q5 are opened and turn off all lower bridge arm switching tube Q2, Q4 and Q6, passed through
Main circuit current value at this time is sampled by current sensor after default delay time, can specifically pass through the electricity on current sensor R1
Pressure, if main circuit current value is more than or equal to electric current threshold value, judges to open in lower bridge arm to calculate main circuit current value at this time
It closes that pipe Q2, Q4 and Q6 have a short circuit and carries out warning note, and close all upper and lower bridge arm switching tube Q1, Q3 and Q5 and Q2, Q4
And Q6, detect program stopped；If main circuit current value is less than electric current threshold value, continue to execute step S2 downwards；
S2, all upper bridge arm switching tube Q1, Q3 and Q5 are then powered off and open all lower bridge arm switching tube Q2, Q4 and Q6,
Main circuit current value at this time is sampled by current sensor after default delay time, similarly can specifically pass through current sensor
Voltage on R1 calculates main circuit current value at this time, if main circuit current value is more than or equal to electric current threshold value, in judgement
In bridge arm switching tube Q1, Q3 and Q5 have a short circuit and carry out warning note, and close all upper and lower bridge arm switching tube Q1, Q3 and Q5
And Q2, Q4 and Q6, detect program stopped；If main circuit current value is less than electric current threshold value, detection program is exited.
Certainly, those skilled in the art drive wye connection motor bridge circuit power switch tube in aforementioned three-phase bridge
On the basis of the detection method of short circuit, upper arm can also be first opened according to 〝 above-mentioned and turn off lower arm sampling judgement, then upper lower arm
Switching simultaneously samples the step of judging 〞, the bridge circuit function of such as triangular form connection motor driving to other bridge-types again
Rate switching tube carries out short-circuit detecting.
As specific embodiment, the microprocessor uses the single-chip microcontroller of model STM32F051R6T6, the driving electricity
Road is available circuit well known to those skilled in the art, and the switching tube Q1~Q6 is NMOS power switch tube；Certainly, this field
Technical staff on this basis, can also be realized using other switching tube such as triodes, silicon-controlled, IGBT pipe etc..
Delay time is preset as specific embodiment, in the step S1~S2 to be calculated using following formula:
Wherein, T is default delay time, and G is the total inductance of major loop, ImFor the major loop after default delay time T
Theoretical current value, U are direct current power source voltage.
As specific embodiment, electric current threshold value is calculated using following formula in the step S1~S2:
Wherein, T is default delay time, and U is direct current power source voltage, and G is the total inductance of major loop, as motor running
Winding inductance is total with major loop inductance, specifically can be by calculating or surveying acquisition, ImFor after default delay time T
Major loop theoretical current value, I0For the quiescent current of major loop after all upper and lower bridge arm switching tubes of closing, I is electric current threshold
Value.
Wherein, the major loop theoretical current value I after default delay time TmValue must simultaneously meet following principle:
The first, ImValue will be significantly more than the quiescent current I of major loop after all upper and lower bridge arm switching tubes of closing0, and be more than
The enough current sampling systems of amplitude are differentiated；
The second, ImValue is not to make motor shake and the operational shock upper limit occur；
Third, ImThe maximum power that value is allowed using bridge-type driving switch device is the upper limit.
As an implementation, if certain three-phase bridge drive star-like dc motor major loop total inductance survey be
5mH, the quiescent current (after closing all switching tubes) of control system major loop are 0.1A, the upper limit of the power electricity of switching tube used
Stream is 200A, and the voltage of DC power supply is 48V, confirms through repetition test: adding the electric current of 3A not will cause electricity on motor in short-term
Motivation is obviously shaken and operational shock, then can use Im=3A
Default delay time:
Electric current threshold value:
Certainly, those skilled in the art can also according to actual needs, by the default delay time T in aforementioned embodiments
Value is 312 μ s, electric current threshold value value 1A or so.
As a preferred embodiment, it is 312 μ s that delay time is preset in the step S1~S2, if default delay time mistake
It is long, it may be such that electric current rising value is excessive and cause system operational shock；If default delay time is too short, electricity may be such that
Rising value is too small that main circuit current value is caused not rise to electric current threshold value also for stream.Thus, default delay time is set as 312 μ
S will not cause to impact to electric motor system again on the basis of guaranteeing that machine winding can be connected to, and if have in upper and lower bridge arm
Then main circuit current value has enough time to rise to electric current threshold value to be sampled to switch tube short circuit, it is thus possible to bridge circuit
Power switch tube short circuit is accurately detected, and the reliability of detection method has been effectively ensured.
Finally, it is stated that the above examples are only used to illustrate the technical scheme of the present invention and are not limiting, although referring to compared with
Good embodiment describes the invention in detail, those skilled in the art should understand that, it can be to skill of the invention
Art scheme is modified or replaced equivalently, and without departing from the objective and range of technical solution of the present invention, should all be covered at this
In the scope of the claims of invention.
Claims (5)
1. a kind of motor bridge circuit power switch tube short circuit online test method, which is characterized in that in the self checking method
Using a kind of three-phase bridge drive control circuit, the drive control circuit includes DC power supply, bridge circuit, micro process
Device, the current sensor being connected with microprocessor input and the driving circuit being connected with output end of microprocessor, the bridge-type
Circuit includes upper bridge arm switching tube and lower bridge arm switching tube, the first main electrode of the upper bridge arm switching tube and DC power supply
Anode connection, the winding of the second main electrode of the upper bridge arm switching tube and the first main electrode of lower bridge arm switching tube and motor
Second main electrode of connection, the lower bridge arm switching tube is connected through the cathode of current sensor and DC power supply, the upper bridge arm
The control electrode of switching tube and lower bridge arm switching tube is by driving circuit drive control, and described detection method includes the following steps:
S1, all upper bridge arm switching tubes are opened and turn off all lower bridge arm switching tubes, passed after default delay time by electric current
Sensor samples main circuit current value at this time, if main circuit current value is more than or equal to electric current threshold value, judges lower bridge arm switching tube
Short circuit simultaneously carries out warning note, and closes all upper and lower bridge arm switching tubes, detects program stopped；If main circuit current value is less than electricity
Threshold value is flowed, then continues to execute step S2 downwards；
S2, all upper bridge arm switching tubes are then powered off and open all lower bridge arm switching tubes, by electricity after default delay time
Flow sensor samples main circuit current value at this time, if main circuit current value is more than or equal to electric current threshold value, bridge arm is opened in judgement
It closes tube short circuit and carries out warning note, and close all upper and lower bridge arm switching tubes, detect program stopped；If main circuit current value is small
In electric current threshold value, then detection program is exited.
2. motor bridge circuit power switch tube short circuit online test method according to claim 1, which is characterized in that
The motor is that three-phase bridge drives wye connection motor, and the bridge circuit includes upper bridge arm switching tube Q1, Q3 and Q5
And lower bridge arm switching tube Q2, Q4 and Q6, the first main electrode of described switching tube Q1, Q3 and Q5 and the anode of DC power supply connect,
One end of first winding of the second main electrode of the switching tube Q1 and the first main electrode of switching tube Q2 and motor connects, institute
One end connection of the second winding of the second main electrode of switching tube Q3 and the first main electrode of switching tube Q4 and motor is stated, it is described
One end of the tertiary winding of the second main electrode of switching tube Q5 and the first main electrode of switching tube Q6 and motor connects, the electricity
The other end of first winding of motivation, the second winding and the tertiary winding is interconnected to constitute a node, described switching tube Q2, Q4
Connected with the second main electrode of Q6 through the cathode of current sensor and DC power supply, described upper bridge arm switching tube Q1, Q3 and Q5 and
The control electrode of lower bridge arm switching tube Q2, Q4 and Q6 are by driving circuit drive control.
3. motor bridge circuit power switch tube short circuit online test method according to claim 1, which is characterized in that
Delay time is preset in the step S1~S2 to be calculated using following formula:
Wherein, T is default delay time, and G is the total inductance of major loop, ImFor the theoretical electricity of major loop after default delay time T
Flow valuve, U are direct current power source voltage.
4. motor bridge circuit power switch tube short circuit online test method according to claim 1, which is characterized in that
It is 312 μ s that delay time is preset in the step S1~S2.
5. motor bridge circuit power switch tube short circuit online test method according to claim 1, which is characterized in that
Electric current threshold value is calculated using following formula in the step S1~S2:
Wherein, T is default delay time, and U is direct current power source voltage, and G is the total inductance of major loop, ImWhen for by default delay
Between major loop theoretical current value after T, I0For the quiescent current of major loop after all upper and lower bridge arm switching tubes of closing, I is electric current
Threshold value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910333870.3A CN109975648A (en) | 2019-04-24 | 2019-04-24 | A kind of motor bridge circuit power switch tube short circuit online test method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910333870.3A CN109975648A (en) | 2019-04-24 | 2019-04-24 | A kind of motor bridge circuit power switch tube short circuit online test method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109975648A true CN109975648A (en) | 2019-07-05 |
Family
ID=67086035
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910333870.3A Pending CN109975648A (en) | 2019-04-24 | 2019-04-24 | A kind of motor bridge circuit power switch tube short circuit online test method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109975648A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110596562A (en) * | 2019-08-13 | 2019-12-20 | 合肥格易集成电路有限公司 | Method and system for detecting state of MOS (Metal oxide semiconductor) tube |
| CN112034385A (en) * | 2020-08-05 | 2020-12-04 | 苏州汇川联合动力系统有限公司 | Motor system fault detection method, device and computer readable storage medium |
| CN113447853A (en) * | 2021-06-10 | 2021-09-28 | 南京航空航天大学 | Open-circuit fault diagnosis method for double-salient electro-magnetic pole power converter |
| CN114421851A (en) * | 2021-11-26 | 2022-04-29 | 浙江宇视科技有限公司 | Method, device, equipment and medium for detecting abnormal rotation of gate |
| WO2022094894A1 (en) * | 2020-11-05 | 2022-05-12 | 深圳市大疆创新科技有限公司 | Testing method, control, electronic speed control, power apparatus, and movable platform for electric motor |
| CN114755575A (en) * | 2022-04-11 | 2022-07-15 | 中南大学 | Motor fault diagnosis system and method for new energy electric vehicle |
| WO2024055190A1 (en) * | 2022-09-14 | 2024-03-21 | 威刚科技股份有限公司 | Motor driver provided with detection circuit |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101485080A (en) * | 2006-06-30 | 2009-07-15 | 丰田自动车株式会社 | Motor drive device |
| CN102426282A (en) * | 2011-08-18 | 2012-04-25 | 奇瑞汽车股份有限公司 | Brushless direct current motor system and torque current detection circuit thereof |
| CN106226607A (en) * | 2016-08-30 | 2016-12-14 | 广东威灵电机制造有限公司 | The fault detection method of brshless DC motor and device |
| CN107078681A (en) * | 2014-11-04 | 2017-08-18 | 三菱电机株式会社 | Control device of electric motor, electric power-assisted steering apparatus and fault of dc-to-ac converter system detection method |
| CN109975646A (en) * | 2019-04-24 | 2019-07-05 | 重庆理工大学 | A kind of motor winding open circuit On-line self-diagnosis method of wye connection |
| CN109975647A (en) * | 2019-04-24 | 2019-07-05 | 重庆理工大学 | A kind of motor winding open circuit On-line self-diagnosis method of triangular form connection |
-
2019
- 2019-04-24 CN CN201910333870.3A patent/CN109975648A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101485080A (en) * | 2006-06-30 | 2009-07-15 | 丰田自动车株式会社 | Motor drive device |
| CN102426282A (en) * | 2011-08-18 | 2012-04-25 | 奇瑞汽车股份有限公司 | Brushless direct current motor system and torque current detection circuit thereof |
| CN107078681A (en) * | 2014-11-04 | 2017-08-18 | 三菱电机株式会社 | Control device of electric motor, electric power-assisted steering apparatus and fault of dc-to-ac converter system detection method |
| CN106226607A (en) * | 2016-08-30 | 2016-12-14 | 广东威灵电机制造有限公司 | The fault detection method of brshless DC motor and device |
| CN109975646A (en) * | 2019-04-24 | 2019-07-05 | 重庆理工大学 | A kind of motor winding open circuit On-line self-diagnosis method of wye connection |
| CN109975647A (en) * | 2019-04-24 | 2019-07-05 | 重庆理工大学 | A kind of motor winding open circuit On-line self-diagnosis method of triangular form connection |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110596562A (en) * | 2019-08-13 | 2019-12-20 | 合肥格易集成电路有限公司 | Method and system for detecting state of MOS (Metal oxide semiconductor) tube |
| CN112034385A (en) * | 2020-08-05 | 2020-12-04 | 苏州汇川联合动力系统有限公司 | Motor system fault detection method, device and computer readable storage medium |
| CN112034385B (en) * | 2020-08-05 | 2023-10-27 | 苏州汇川联合动力系统股份有限公司 | Motor system fault detection method, apparatus and computer readable storage medium |
| WO2022094894A1 (en) * | 2020-11-05 | 2022-05-12 | 深圳市大疆创新科技有限公司 | Testing method, control, electronic speed control, power apparatus, and movable platform for electric motor |
| CN113447853A (en) * | 2021-06-10 | 2021-09-28 | 南京航空航天大学 | Open-circuit fault diagnosis method for double-salient electro-magnetic pole power converter |
| CN113447853B (en) * | 2021-06-10 | 2021-12-14 | 南京航空航天大学 | Open-circuit fault diagnosis method for double-salient electro-magnetic pole power converter |
| CN114421851A (en) * | 2021-11-26 | 2022-04-29 | 浙江宇视科技有限公司 | Method, device, equipment and medium for detecting abnormal rotation of gate |
| CN114755575A (en) * | 2022-04-11 | 2022-07-15 | 中南大学 | Motor fault diagnosis system and method for new energy electric vehicle |
| CN114755575B (en) * | 2022-04-11 | 2023-03-14 | 中南大学 | Motor fault diagnosis system and method for new energy electric vehicle |
| WO2024055190A1 (en) * | 2022-09-14 | 2024-03-21 | 威刚科技股份有限公司 | Motor driver provided with detection circuit |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109975648A (en) | A kind of motor bridge circuit power switch tube short circuit online test method | |
| CN109975647A (en) | A kind of motor winding open circuit On-line self-diagnosis method of triangular form connection | |
| CN109975646A (en) | A kind of motor winding open circuit On-line self-diagnosis method of wye connection | |
| CN105379060B (en) | The control of uninterrupted power source | |
| CN107204713B (en) | Mutually missing detection in Active Front End Converter | |
| CN111193296B (en) | Pre-charging control device and method | |
| CN102692591A (en) | Device and method for detecting insulation failures of high and low voltage ends | |
| CN206074685U (en) | Analog quantity detects circuit | |
| CN106655145A (en) | Battery bus voltage reverse connection protection circuit | |
| CN103219776A (en) | High-power battery charging device capable of preventing battery reversal | |
| CN107024653B (en) | A kind of on-line measuring device and method of high voltage DC breaker | |
| CN106771807B (en) | The detection method of heater switch fault | |
| CN201075720Y (en) | Control circuit of controller for electric vehicle | |
| CN208874274U (en) | Inverter power-off protection circuit and vehicle | |
| CN102967788B (en) | Line broken detection circuit of battery and detection method thereof | |
| CN101763965A (en) | Arc sampling arc-distinguishing control device | |
| CN207184038U (en) | Device for power switching current foldback circuit and motor driven systems, electric system | |
| CN207720054U (en) | A kind of servo-driver list resistance sampling detecting system | |
| CN206431197U (en) | A kind of new load current sample circuit | |
| CN206133303U (en) | Car body control module's failure diagnosis circuit | |
| CN211577329U (en) | MOS manages self-checking circuit and electric motor car | |
| CN112083229B (en) | Ground insulation impedance detection circuit and method of photovoltaic inverter | |
| CN202213535U (en) | Rear view mirror folding controller | |
| CN108237305A (en) | Electric welding machine power-down protection apparatus and electric welding machine | |
| CN106841966A (en) | A kind of method and system of the switching tube fault detect of controller for electric vehicle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190705 |