Rotor angle detection method and device based on linear Hall system
A linear Hall and rotor angle technology, applied in the direction of electronic commutator, etc., can solve the problems of linear Hall sensor position angle deviation, linear Hall sensor mechanical installation is not in place, etc.
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
no. 1 example
[0036] Such as figure 1 As shown, the embodiment of the present application provides a linear Hall system. The linear Hall system includes two linear Hall units 10 and a processing unit 20. Each linear Hall unit 10 is electrically connected to the processing unit 20. Each linear Hall unit 10 is electrically connected to the processing unit 20. The Hall unit 10 is directly or indirectly fixed to the stator of the motor, and is used to output an analog signal representing the phase angle of the motor rotor A, and the processing unit 20 can calculate the position angle of the rotor A through the analog signal of the phase angle of the motor rotor That is, the angle of the motor rotor A relative to the motor stator, wherein the processing unit 20 can be a microcontroller, and the ADC sampling port of the microcontroller receives the analog signals output by the two linear Hall units 10, and then the microcontroller according to the two The analog signal output by the linear Hall u...
no. 2 example
[0038] On the basis of the linear Hall system designed above, this application provides a rotor angle detection method based on the aforementioned linear Hall system, which is applied to the processing unit in the first embodiment, such as figure 2 As shown, the method specifically includes the following steps:
[0039] Step S200: Obtain the AD sampling value corresponding to the real-time analog signal output by each linear Hall unit.
[0040] Step S202: Obtain the pre-stored DC bias value and amplitude increment value corresponding to each linear Hall cell.
[0041] Step S204: Determine the angle of the rotor of the motor relative to the stator according to the AD sampling value corresponding to the real-time analog signal of each linear Hall unit and the DC bias value and amplitude increment value corresponding to each linear Hall unit.
[0042] It has been described above that the output signal of each linear Hall unit will be transmitted to the ADC sampling port of the ...
no. 3 example
[0089] Figure 10 A schematic structural block diagram of the rotor angle detection device based on the linear Hall system provided by the present application is shown. It should be understood that the device is different from the above-mentioned Figure 1 to Figure 9 Corresponding to the embodiment of the method executed by the processing unit in the second embodiment, the steps involved in the method executed by the processing unit in the second embodiment can be referred to the above description for the specific functions of the device, and the detailed description is appropriately omitted here to avoid repetition. The device includes at least one software function module that can be stored in a memory in the form of software or firmware (firmware) or solidified in an operating system (operating system, OS) of the device. Specifically, the device includes: an acquisition module 300, configured to acquire the AD sampling value corresponding to the real-time analog signal out...
PUM
Login to View More Abstract
Description
Claims
Application Information
Login to View More