CN212258822U - Detection device of position sensor - Google Patents
Detection device of position sensor Download PDFInfo
- Publication number
- CN212258822U CN212258822U CN202022029438.6U CN202022029438U CN212258822U CN 212258822 U CN212258822 U CN 212258822U CN 202022029438 U CN202022029438 U CN 202022029438U CN 212258822 U CN212258822 U CN 212258822U
- Authority
- CN
- China
- Prior art keywords
- driving circuit
- motor driving
- motor
- control chip
- rotary transformer
- 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.)
- Withdrawn - After Issue
Links
- 238000001514 detection method Methods 0.000 title claims abstract description 44
- 230000001360 synchronised effect Effects 0.000 claims abstract description 51
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims abstract description 18
- 229910052744 lithium Inorganic materials 0.000 claims abstract description 18
- 238000012544 monitoring process Methods 0.000 claims description 35
- 238000000034 method Methods 0.000 claims description 11
- 230000010355 oscillation Effects 0.000 claims description 3
- 238000005259 measurement Methods 0.000 abstract description 8
- 238000010586 diagram Methods 0.000 description 10
- 238000002360 preparation method Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000013500 data storage Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Images
Abstract
The utility model relates to a position sensor's detection device, in particular to supporting detection technical field of EPS PMSM rotor. A detection circuit board arranged in the device body is provided with a micro control chip, a rotary transformer signal decoding circuit, a motor driving circuit, a power supply module, a lithium battery, an SD card and a Flash memory chip; a motor driving circuit connected with the micro control chip is connected with a UVW three-phase line of the permanent magnet synchronous motor through a motor interface, the micro control chip is connected with a signal decoding circuit of the rotary transformer, and the other end of the micro control chip is connected with a Hall sensor interface; use the photoelectric encoder angle as the detection standard, combine resolver signal decoding circuit and motor drive circuit, through the utility model discloses six steps realize 2 utmost points ~ 14 utmost point PMSM motor position sensor's precision measurement, and small weight is light, and is portable, has solved prior art must external force drag electric motor rotor and has changeed, and the precision is poor, detects loaded down with trivial details, and bulky weight is heavy, non-portable problem.
Description
Technical Field
The utility model relates to a position sensor's detection device, in particular to supporting detection technical field of EPS PMSM rotor.
Background
The precision of a position sensor configured on a permanent magnet synchronous motor in an EPS system of an automobile can directly influence the operation of the motor, and the installation deviation of the position sensor can cause zero deviation of motor rotor position detection, so that unexpected direct-axis current is caused, the motor has large torque fluctuation, serious heating and low efficiency, and the working performance of the EPS system is seriously influenced. The position sensor of the permanent magnet synchronous motor rotor comprises a rotary transformer and a Hall sensor, and corresponds to the position sensor at present, the detection equipment and the detection mode have the following defects that the weight of the detection equipment is heavy, the detection equipment is inconvenient to carry, and the permanent magnet synchronous motor rotor is required to be pushed and pulled by external force to rotate during detection, so that the use is inconvenient, and the detection precision is low. Therefore, it is urgently needed to develop a detection device and a detection method for a position sensor, which is light and handy in size, convenient to carry, simple in detection operation method and high in detection precision.
Disclosure of Invention
An object of the utility model is to provide a position sensor's detection device and detection method, rotary transformer and hall sensor's to position sensor detection design, device body light in weight, small, it is portable, utilize photoelectric encoder's angle as the detection standard of device body, combine rotary transformer signal decoding module and motor drive circuit, realize the position sensor of 2 utmost point ~ 14 utmost point EPS system's PMSM configuration-rotary transformer and hall sensor's precision measurement, the wiring is simple, high durability and convenient operation, be particularly suitable for EPS PMSM rotor position sensor to detect and use.
The utility model discloses a realize above-mentioned purpose through following technical scheme:
a detection device of a position sensor comprises a device body, wherein a rotary transformer interface, a Hall sensor interface, a motor interface, a photoelectric encoder interface, a USB interface and a power jack are arranged on the device body, and a display screen, an operation keyboard and a buzzer are arranged on a panel of the device body; the method is characterized in that: the device comprises a device body, a detection circuit board, a micro control chip, a rotary transformer signal decoding circuit, a motor driving circuit, a power supply module, a lithium battery, an SD card and a Flash memory chip, wherein the detection circuit board is arranged in the device body;
the motor driving circuit comprises a voltage, current and temperature monitoring module, a control signal end of the micro control chip is connected with the motor driving circuit, the motor driving circuit is connected with a motor interface and is connected with an U, V, W three-phase line of the permanent magnet synchronous motor through the motor interface, and the voltage, current and temperature monitoring module output ends of the motor driving circuit are respectively connected with the micro control chip; the micro control chip is connected with the signal decoding circuit of the rotary transformer through an SPI interface, and the other control signal end of the micro control chip is connected with a Hall sensor interface; the motor driving circuit, the rotary transformer signal decoding circuit and the working voltage Vcc end of the Hall sensor interface are respectively connected with the power supply module through leads; one of the other two output ends of the power supply module is connected with the micro control chip, and the other output end of the power supply module is connected with the voltage monitoring module of the motor driving circuit, so as to respectively provide working voltage for the micro control chip and the voltage monitoring module; the input end of the power supply module is connected with a lithium battery, and the lithium battery is connected with an external power supply through a power jack; the display screen and the operation keyboard are connected with the micro control chip through wires;
the device body is adapted to detect the rotary transformer and the Hall sensor position sensor of the 2-14-pole EPS permanent magnet brushless motor;
the micro control chip comprises an external oscillation clock and a real-time clock;
the rotary transformer signal decoding circuit comprises a special rotary transformer decoding chip, and the rotary transformer signal is decoded by the special rotary transformer decoding chip;
the operation keyboard is provided with 16 key buttons, and the work of the rotary transformer signal decoding circuit, the Hall sensor interface and the motor driving circuit and the on and off of the power supply are respectively controlled through the corresponding key buttons;
the voltage monitoring module of the motor driving circuit prevents insufficient or unstable external voltage through the power jack, and ensures the normal work of the motor driving circuit;
the current monitoring module of the motor driving circuit prevents the motor driving circuit from outputting too large current, and protects the equipment and the permanent magnet synchronous motor from being damaged;
the temperature monitoring module of the motor driving circuit prevents the motor driving circuit from being overhigh in temperature and damaging equipment and the permanent magnet synchronous motor.
A detection method of a detection device of a position sensor is characterized in that: the method is realized by the following steps:
1) the device body is arranged on the permanent magnet synchronous motor through the excircle positioning of a positioning boss on the permanent magnet synchronous motor, and meanwhile, the photoelectric encoder is connected with the shaft of the permanent magnet synchronous motor;
2) according to the type of the permanent magnet synchronous motor sensor, connecting a line of the permanent magnet synchronous motor position sensor to a corresponding interface, namely connecting a rotary transformer with a rotary transformer interface, connecting a Hall sensor with a Hall sensor interface, and then connecting U, V, W three-phase lines of the permanent magnet synchronous motor to a motor interface;
3) after the wiring is confirmed to be correct, the lithium battery is switched on to supply power to the power module through the control of the operation keyboard, the micro control chip, the motor driving circuit, the voltage monitoring module, the rotary transformer signal decoding circuit and the Hall sensor interface are respectively supplied with power through the power module, the micro control chip is controlled to work through the operation keyboard, and whether the type of the permanent magnet synchronous motor position sensor is the rotary transformer or the Hall sensor is selected;
4) a micro-control chip of the device body controls a motor driving circuit to electrify the permanent magnet synchronous motor, the magnetic pole position of the rotor is arranged at a zero position, a rotor reference zero position is provided for a photoelectric encoder, and preparation is made for subsequent permanent magnet synchronous motor driving; simultaneously checking the zero position of the rotary transformer;
5) step 4), after the implementation is finished, driving the permanent magnet synchronous motor by using a six-step driving method, reading the angle from the photoelectric encoder, and calculating the magnetic pole pair number of the rotor of the permanent magnet synchronous motor and the rotary transformer by using a micro control chip; after the rotor of the permanent magnet synchronous motor runs at a physical position of 360 degrees, whether the connection looseness phenomenon exists between the device body and the permanent magnet synchronous motor is diagnosed through whether the position of the photoelectric encoder returns to zero, and if the connection looseness phenomenon exists, the processes are repeated until the connection looseness phenomenon and the connection looseness phenomenon are fastened and accurately connected;
6) and a photoelectric encoder is used as position feedback to drive the permanent magnet synchronous motor, a position control mode is adopted for fixing points, the measurement angle of the rotary transformer or the Hall sensor and the measurement signal of the photoelectric encoder are corrected, and finally the detection of the precision of the position sensor of the permanent magnet synchronous motor is realized.
Compared with the prior art, the utility model beneficial effect lie in:
this position sensor's detection device and detection method, through the utility model discloses six steps to photoelectric encoder's angular signal is as standard angle, decodes the resolver signal through resolver signal decoding circuit's special resolver decoding chip, compares the angular surveying result that becomes soon that will obtain with photoelectric encoder angle, realizes the precision measurement to resolver or hall sensor. A 4S high-rate lithium battery is adopted to ensure that a normal working voltage of 12V-16.8V is provided for the device body; through the motor driving circuit, the detection of the permanent magnet synchronous motor to different positions is realized. The device body has small, light in weight, self-driven, conveniently carries, characteristics that the suitability is strong, is particularly suitable for EPS PMSM rotor position sensor to detect and use. The problem of current detection device must rotate with external force traction PMSM rotor when using has been solved well, and the precision is poor, and the testing process is loaded down with trivial details, and bulky, and weight is heavy, inconvenient carrying.
Drawings
Fig. 1 is a schematic block diagram of the working principle of the present invention;
fig. 2 is a schematic structural diagram of a resolver signal decoding circuit according to the present invention;
fig. 3 is a schematic structural diagram of the motor driving circuit of the present invention;
FIG. 4 is a circuit diagram of a voltage monitoring module of the motor drive circuit;
FIG. 5 is a circuit diagram of a current monitoring module of the motor drive circuit;
FIG. 6 is a circuit diagram of a temperature monitoring module of the motor drive circuit;
fig. 7 is a circuit diagram of a power module of the present invention;
fig. 8 is a circuit diagram of the operation keyboard of the present invention;
fig. 9 is a schematic structural diagram of the SD card of the present invention;
fig. 10 is a circuit diagram of a Flash memory chip according to the present invention.
Detailed Description
Embodiments of the present invention will be described in further detail below with reference to the accompanying drawings (see fig. 1-10):
(see fig. 1), the detection device of a position sensor comprises a device body, wherein a rotary transformer interface, a hall sensor interface, a motor interface and a photoelectric encoder interface are arranged on the right side surface of the device body, a USB interface is arranged on the left side surface of the device body, a power jack is arranged on the front panel of the device body, a display screen and an operation keyboard are arranged on the panel of the device body, and a buzzer is arranged on the rear panel of the device body; this internal detection circuit board of installing of device installs little control chip on the detection circuit board: model STM32F407ZEIT6, resolver signal decoding circuit: the model is ADS1210, motor drive circuit, power module: the voltage of 3.3V, 5V and 12-16.8V is converted and output; lithium battery: the lithium battery is a 4S high-rate lithium battery and is charged by an external power supply through a power supply jack; the SD card and the Flash memory chip are used for storing data;
the motor driving circuit comprises a voltage monitoring module, a current monitoring module and a temperature monitoring module, the motor driving circuit is connected with a motor interface, an U, V, W three-phase line of the permanent magnet synchronous motor is accessed through the motor interface, and the output ends of the voltage, the current and the temperature monitoring module of the motor driving circuit are respectively connected with the micro control chip; the voltage monitoring module is used for monitoring the voltage of the lithium battery, providing a monitoring voltage signal to the micro control chip, controlling the motor driving circuit to work normally and alarming by the buzzer; the current monitoring module feeds back a current signal to the micro control chip to enable the motor driving circuit to operate stably; the temperature monitoring module provides a temperature signal for the micro control chip, and the device and the permanent magnet synchronous motor are prevented from being damaged due to overhigh temperature.
The micro control chip is connected with the signal decoding circuit of the rotary transformer through an SPI interface, and the other control signal end of the micro control chip is connected with the Hall sensor interface to output a corresponding control signal;
the motor driving circuit, the rotary transformer signal decoding circuit and the working voltage Vcc end of the Hall sensor interface are respectively connected with the power supply module through leads; one of the other two output ends of the power supply module is connected with the micro control chip to provide 3.3V working voltage for the micro control chip, and the other output end of the power supply module is connected with the voltage monitoring module to provide 3.3V working voltage for the micro control chip; the input end of the power supply module is connected with a lithium battery, and the lithium battery is connected with an external power supply through a power jack and is charged through the external power supply; the display and the operation keyboard are connected with the micro-control chip through wires; the lithium battery provides voltage in the range of 12-16.8V.
The device body is adapted to detect position sensors configured for 2-14-pole EPS permanent magnet brushless motors: a resolver or a hall sensor.
The micro-control chip comprises an external oscillation clock and a real-time clock.
(see fig. 2), the resolver signal decoding circuit decodes the resolver signal through a dedicated resolver decoding chip. The model of the special rotary-transform decoding chip is AD2S 1210.
(see fig. 3), the motor driving circuit includes a voltage monitoring module, a current monitoring module, and a temperature monitoring module.
(see fig. 4), the voltage monitoring module of the motor driving circuit prevents insufficient or unstable external voltage through the power jack, and ensures the normal operation of the motor driving circuit.
(see fig. 5), the current monitoring module of the motor driving circuit prevents the output current of the motor driving circuit from being overlarge, and protects the equipment and the permanent magnet synchronous motor from being damaged.
(see fig. 6), the temperature monitoring module of the motor driving circuit prevents the motor driving circuit from being over-heated and damaging the equipment and the permanent magnet synchronous motor.
(see fig. 7), the power module comprises two conversion chips with models of LM2940CS-5.0 and LM3940IS-3.3, and converts the 12-16.8V voltage of the lithium battery into 3.3V and 5V working voltage for output.
(see fig. 8), the operation keyboard has 16 keys, and the 16 keys respectively control the work of the resolver signal decoding circuit, the hall sensor interface, the motor driving circuit and the on and off of the power supply.
A detection method of a detection device of a position sensor is characterized in that: the method is realized by the following steps:
1) the device body is arranged on the permanent magnet synchronous motor through the excircle positioning of a positioning boss on the permanent magnet synchronous motor, and meanwhile, the photoelectric encoder is connected with the shaft of the permanent magnet synchronous motor;
2) according to the type of the permanent magnet synchronous motor sensor, connecting a line of the permanent magnet synchronous motor position sensor to a corresponding interface, namely connecting a rotary transformer with a rotary transformer interface, connecting a Hall sensor with a Hall sensor interface, and then connecting U, V, W three-phase lines of the permanent magnet synchronous motor to a motor interface;
3) after the wiring is confirmed to be correct, the lithium battery is switched on to supply power to the power module through the control of the operation keyboard, the micro control chip, the motor driving circuit, the voltage monitoring module, the rotary transformer signal decoding circuit and the Hall sensor interface are respectively supplied with power through the power module, the micro control chip is controlled to work through the operation keyboard, and whether the type of the permanent magnet synchronous motor position sensor is the rotary transformer or the Hall sensor is selected;
4) a micro-control chip of the device body controls a motor driving circuit to electrify the permanent magnet synchronous motor, the magnetic pole position of the rotor is arranged at a zero position, a rotor reference zero position is provided for a photoelectric encoder, and preparation is made for subsequent permanent magnet synchronous motor driving; simultaneously checking the zero position of the rotary transformer;
5) step 4), after the implementation is finished, driving the permanent magnet synchronous motor by using a six-step driving method, reading the angle from the photoelectric encoder, and calculating the magnetic pole pair number of the rotor of the permanent magnet synchronous motor and the rotary transformer by using a micro control chip; after the rotor of the permanent magnet synchronous motor runs at a physical position of 360 degrees, whether the connection looseness phenomenon exists between the device body and the permanent magnet synchronous motor is diagnosed through whether the position of the photoelectric encoder returns to zero, and if the connection looseness phenomenon exists, the processes are repeated until the connection looseness phenomenon and the connection looseness phenomenon are fastened and accurately connected; six-step driving method, wherein the interval of each step of the permanent magnet synchronous motor rotor is 60 degrees;
6) the photoelectric encoder is used as position feedback, the motor driving circuit drives the permanent magnet synchronous motor rotor to rotate, a position control mode is adopted for fixing points, the measurement angle of the rotary transformer or the Hall sensor and the measurement signal of the photoelectric encoder are calibrated, and finally the detection of the precision of the permanent magnet synchronous motor position sensor is realized. And the detection of the precision of the rotary transformer or the Hall sensor at any interval angle is realized by adopting a position control mode for fixed point.
The following are the functions and selections of the main components of the utility model:
EPS permanent magnetism brushless synchronous machine is with 6 utmost points, 8 utmost points and 10 utmost points at most and is many, and the most no longer than 14 utmost points to the EPS system, and rotary transformer's required precision is that the electrical angle error is no longer than 1.5, calculates the physical angle error in view of the above and is not more than 0.21 and can satisfy the requirement, consequently the utility model discloses an electrical angle error is not more than 0.02 photoelectric encoder's angle as the standard, selects the photoelectric encoder of 5000 lines/commentaries on classics.
Besides being used as a detection standard, the photoelectric encoder is also used as a position sensor of the permanent magnet synchronous motor to provide a rotor position signal, so that the device body performs accurate vector control on the permanent magnet synchronous motor, and the position sensor of the permanent magnet synchronous motor rotor can detect each angle position to be detected in a position control mode.
The circuit of the resolver signal decoding circuit is formed and functions as follows: a special rotary transformer decoding chip AD2S1210 is adopted for decoding the rotary transformer, and an angle digital signal obtained after decoding is transmitted to the MCU through the SPI.
Hall sensor interface circuit: the Hall sensor is called as a switch Hall position sensor;
a PMSM motor for an EPS system equipped with a hall sensor generally includes 5 signals: HALL _ U, HALL _ V, HALL _ W and HALL _ A, HALL _ B, where HALL _ U, HALL _ V, HALL _ W is used to detect PMSM motor rotor pole position and HALL _ A, HALL _ B is two orthogonal HALL encoder signals used to improve rotor position measurement resolution.
The Hall encoder is connected with an IO port of the MCU through a Hall sensor interface. Because the Hall sensor has low resolution and low rotating speed during testing, the requirement can be met by adopting a general IO port.
(see fig. 9 and 10), SD card and Flash memory chip: the data storage is realized through an SD card and a Flash memory chip, and the SD card and the Flash memory chip are connected with a micro control chip MCU through an SPI interface.
A human-computer interface: the device consists of three parts, namely an operation keyboard, an LCD display screen and a USB interface. The operation keyboard is used for inputting instructions, the LCD display screen displays information, and the USB interface is used for being connected with an upper PC.
The above description is only a preferred embodiment of the present invention, and the above illustration does not limit the essence of the present invention in any form, and any simple modification or variation of the above embodiments based on the technical essence of the present invention and equivalent embodiments which may be changed or modified to equivalent variations by using the technical essence of the present invention by those of ordinary skill in the art after reading the present description still belong to the technical solution of the present invention without departing from the essence and scope of the present invention.
Claims (1)
1. A detection device of a position sensor comprises a device body, wherein a rotary transformer interface, a Hall sensor interface, a motor interface, a photoelectric encoder interface, a USB interface and a power jack are arranged on the device body, and a display screen, an operation keyboard and a buzzer are arranged on a panel of the device body; the method is characterized in that: the device comprises a device body, a detection circuit board, a micro control chip, a rotary transformer signal decoding circuit, a motor driving circuit, a power supply module, a lithium battery, an SD card and a Flash memory chip, wherein the detection circuit board is arranged in the device body;
the motor driving circuit comprises a voltage, current and temperature monitoring module, a control signal end of the micro control chip is connected with the motor driving circuit, the motor driving circuit is connected with a motor interface and is connected with an U, V, W three-phase line of the permanent magnet synchronous motor through the motor interface, and the voltage, current and temperature monitoring module output ends of the motor driving circuit are respectively connected with the micro control chip; the micro control chip is connected with the signal decoding circuit of the rotary transformer through an SPI interface, and the other control signal end of the micro control chip is connected with a Hall sensor interface; the motor driving circuit, the rotary transformer signal decoding circuit and the working voltage Vcc end of the Hall sensor interface are respectively connected with the power supply module through leads; one of the other two output ends of the power supply module is connected with the micro control chip, and the other output end of the power supply module is connected with the voltage monitoring module of the motor driving circuit, so as to respectively provide working voltage for the micro control chip and the voltage monitoring module; the input end of the power supply module is connected with a lithium battery, and the lithium battery is connected with an external power supply through a power jack; the display screen and the operation keyboard are connected with the micro control chip through wires;
the device body is adapted to detect the rotary transformer and the Hall sensor position sensor of the 2-14-pole EPS permanent magnet synchronous motor; the micro control chip comprises an external oscillation clock and a real-time clock; the rotary transformer signal decoding circuit comprises a special rotary transformer decoding chip, and the rotary transformer signal is decoded by the special rotary transformer decoding chip; the operation keyboard is provided with 16 key buttons, and the work of the rotary transformer signal decoding circuit, the Hall sensor interface and the motor driving circuit and the on and off of the power supply are respectively controlled through the corresponding key buttons; the voltage monitoring module of the motor driving circuit prevents insufficient or unstable external voltage through the power jack, and ensures the normal work of the motor driving circuit; the current monitoring module of the motor driving circuit prevents the motor driving circuit from outputting too large current, and protects the equipment and the permanent magnet synchronous motor from being damaged; the temperature monitoring module of the motor driving circuit prevents the motor driving circuit from being overhigh in temperature and damaging equipment and the permanent magnet synchronous motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022029438.6U CN212258822U (en) | 2020-09-16 | 2020-09-16 | Detection device of position sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022029438.6U CN212258822U (en) | 2020-09-16 | 2020-09-16 | Detection device of position sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212258822U true CN212258822U (en) | 2020-12-29 |
Family
ID=73982139
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022029438.6U Withdrawn - After Issue CN212258822U (en) | 2020-09-16 | 2020-09-16 | Detection device of position sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212258822U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112072966A (en) * | 2020-09-16 | 2020-12-11 | 荆州恒隆汽车技术(检测)中心 | Detection device and detection method of position sensor |
| CN113295086A (en) * | 2021-05-07 | 2021-08-24 | 恒大新能源汽车投资控股集团有限公司 | Precision testing system of rotary transformer |
| CN114812378A (en) * | 2022-04-24 | 2022-07-29 | 重庆长安新能源汽车科技有限公司 | Motor angle sensor mounting position and fault testing system and method |
-
2020
- 2020-09-16 CN CN202022029438.6U patent/CN212258822U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112072966A (en) * | 2020-09-16 | 2020-12-11 | 荆州恒隆汽车技术(检测)中心 | Detection device and detection method of position sensor |
| CN112072966B (en) * | 2020-09-16 | 2024-05-31 | 湖北智融汽车科技有限公司 | Detection device and detection method of position sensor |
| CN113295086A (en) * | 2021-05-07 | 2021-08-24 | 恒大新能源汽车投资控股集团有限公司 | Precision testing system of rotary transformer |
| CN114812378A (en) * | 2022-04-24 | 2022-07-29 | 重庆长安新能源汽车科技有限公司 | Motor angle sensor mounting position and fault testing system and method |
| CN114812378B (en) * | 2022-04-24 | 2023-09-05 | 深蓝汽车科技有限公司 | Motor angle sensor mounting position and fault testing system and method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN212258822U (en) | Detection device of position sensor | |
| CN104579044B (en) | A kind of constant moment of force control method of ECM motors | |
| CN101729013B (en) | Motor control system based on IP core of position sensor-free brushless direct-current motor | |
| CN203219237U (en) | Zero checker | |
| CN101729005A (en) | Method for controlling brushless DC motor based on FPGA | |
| CN103178681B (en) | A kind of motor entity with the initial installation deviation information of rotor-position sensor and initial installation deviation information measuring method thereof | |
| CN102082535B (en) | Brushless direct current motor speed detector based on hall element and control method thereof | |
| CN102780441A (en) | Scheme and method for determining zero position of permanent magnet synchronous motor for automobile EPS (Electric Power Steering) system | |
| CN103322896A (en) | Detection method and system for mounting position of Hall sensor of brushless direct current motor | |
| CN104660120A (en) | Motor zero-position detection method and device | |
| CN202872710U (en) | AC brushless permanent-magnet synchronous-motor rotor-position detection device | |
| CN112072966B (en) | Detection device and detection method of position sensor | |
| WO2023116626A1 (en) | Position deviation calibration method, electric motor driving method and system, and device | |
| CN105119541A (en) | DSP (digital signal processor)-based stepper motor control system | |
| CN203180813U (en) | A motor controller for a self-balance double-wheel electric bicycle, and the self-balance double-wheel electric bicycle | |
| CN105991071A (en) | Constant moment control method for ECM motor | |
| CN102540076A (en) | Method for measuring time constant of rotor of asynchronous machine | |
| CN105207549A (en) | Brushless direct-current motor driving control system | |
| CN203011420U (en) | Brushless DC motor Hall sensor mounting position correcting mechanism | |
| CN210533302U (en) | Step angle precision detection device | |
| CN203537206U (en) | Double-rotor rare-earth permanent-magnetic brushless direct-current motor position sensor | |
| CN112671296B (en) | Method for detecting zero position of rotor of permanent magnet synchronous motor | |
| CN210513004U (en) | Device for measuring rotor offset angle of direct-current brushless double-winding motor | |
| CN207817163U (en) | The uncontrollable power generation test system of magneto based on Labview | |
| CN220170215U (en) | Angle sensor rotation testing device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20201229 Effective date of abandoning: 20240531 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20201229 Effective date of abandoning: 20240531 |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |