Method and apparatus for generating motor brake signal

Patent metadata

Field	Value
Publication number	US-10613635-B2
Application number	US-201816236296-A
Country	US
Kind code	B2
Filing date	Dec 28, 2018
Priority date	Jan 4, 2018
Publication date	Apr 7, 2020
Grant date	Apr 7, 2020

Abstract

Embodiments of the present disclosure relate to the technical field of electronic devices, and a method for generating a motor brake signal is disclosed. In the present disclosure, the method for generating a motor brake signal includes the following steps: S1: controlling a motor by using different brake signals respectively to obtain vibration margins of the motor corresponding to the brake signals; and S2: selecting, from the brake signals, a brake signal with superior performance as the motor brake signal based on the vibration margins of the motor, wherein the smaller the vibration margin of the motor is, the more superior performance the corresponding brake signal has. The present disclosure further provides an apparatus for generating a motor brake signal. The method and the apparatus for generating a motor brake signal that are provided in the present disclosure enable the motor to have a good brake effect.

First claim

What is claimed is:

1. A method for generating a motor brake signal, comprising steps of:
S 1 : controlling a motor by using different brake signals respectively to obtain vibration margins of the motor corresponding to the brake signals;
S 2 : selecting, from the brake signals, a brake signal with most superior performance as a first segment of the motor brake signal to be generated based on the vibration margins of the motor, and a total number of segments of the motor brake signal being N, wherein the smaller the vibration margin of the motor is, the more superior performance the corresponding brake signal has, N is greater than 1;
S 3 : taking a latest brake signal obtained based on the vibration margins of the motor as an existing brake signal, splicing the different brake signals with the existing brake signal respectively to obtain different updated brake signals, and controlling the motor by using the different updated brake signals respectively to obtain vibration margins of the motor corresponding to respective updated brake signals;
S 4 : selecting, from the respective updated brake signals, an updated brake signal with most superior performance as a next segment of the motor brake signal based on the vibration margins of the motor, and increasing a number of segments of the motor brake signal by 1; and
S 5 : if the number of segments of the motor brake signal obtained in the step S 4 is N, taking the motor brake signal obtained in the step S 4 as a final motor brake signal; or if the number of segments of the motor brake signal obtained in the step S 4 is less than N, returning to the step S 3 , until the number of segments of the motor brake signal obtained in the step S 4 is N.

2. The method for generating a motor brake signal according to claim 1 , wherein the different brake signals in the step S 1 are generated in the following way:
generating an initial brake signal based on preset signal parameters, wherein the signal parameters comprise a signal duration and a signal amplitude;
adjusting the signal parameters by a preset step at least once; and
generating a new brake signal based on the adjusted signal parameters each time after the signal parameters are adjusted; and
the different brake signals comprise the initial brake signal and the new brake signals generated each time after the signal parameters are adjusted.

3. The method for generating a motor brake signal according to claim 2 , wherein the generating an initial brake signal based on preset signal parameters comprises:
generating an initial brake signal with a preset minimum signal duration and a preset minimum signal amplitude; and
the adjusting the signal parameters by a preset step at least once comprises:
maintaining the signal amplitude at the minimum signal amplitude, and gradually adjusting the signal duration by a preset first step until the adjusted signal duration is closest to a preset upper limit for duration; and
maintaining the signal duration at a signal duration after a final adjustment, and gradually adjusting the signal amplitude by a preset second step until the adjusted signal amplitude is closest to a preset upper limit for amplitude.

4. The method for generating a motor brake signal according to claim 1 , wherein the method further comprises: after the step S 5 , storing the final motor brake signal.

5. An apparatus for generating a motor brake signal, comprising:
at least one processor; and
a memory communicatively connected with the at least one processor, wherein,
an instruction executable by the at least one processor is stored in the memory, and the instruction is executed by the at least one processor, so that the at least one processor perform the method for generating a motor brake signal according to claim 1 .

Assignees

• Aac Technologies Pte Ltd

Inventors

• Deng Hanlin
• Lu Xiang
• Xiang Zheng

Classifications

• H04M19/047

  Vibrating means for incoming calls · CPC title

• H02K7/063

  integrally combined with motor parts, e.g. motors with eccentric rotors · CPC title

• H04M2250/12

  including a sensor for measuring a physical value, e.g. temperature or motion · CPC title

• G06F3/016 Primary

  Input arrangements with force or tactile feedback as computer generated output to the user · CPC title

• H04M1/72569

  Electricity · mapped topic