Title:
CONTROL METHOD AND CONTROL SYSTEM FOR ELECTRIC TOOL, AND ELECTRIC TOOL
Document Type and Number:
WIPO Patent Application WO/2016/034136
Kind Code:
A1
Abstract:
A control method for an electric tool. The control method comprises the following steps: detecting a parameter x that is used for expressing an output shaft load of a motor; and determining that the output shaft load is reduced to be equal to or less than a preset load according to that the parameter x meets a preset condition, and then changing the rotating speed of the motor. Also disclosed are a control system and an electric tool that applies the control system. By means of the control method and the control system for the electric tool, a nut and a bolt can be loosened without being separated, the nut and the bolt can be separated manually by a user as required, and the requirement on the special working condition of loosening the nut only by the user is met.
Inventors:
DENG QIANG (CN)
MOU GUOLIANG (CN)
ZHANG SHISONG (CN)
RAO YUE (CN)
XU JINGTAO (CN)
MOU GUOLIANG (CN)
ZHANG SHISONG (CN)
RAO YUE (CN)
XU JINGTAO (CN)
Application Number:
PCT/CN2015/088893
Publication Date:
March 10, 2016
Filing Date:
September 02, 2015
Export Citation:
Assignee:
POSITEC POWER TOOLS SUZHOU CO (CN)
International Classes:
B25B23/14; B25B21/00; G05B19/04
Domestic Patent References:
| WO2010075820A1 | 2010-07-08 |
Foreign References:
| CN104656549A | 2015-05-27 | |||
| CN104656550A | 2015-05-27 | |||
| CN104656551A | 2015-05-27 | |||
| CN104647264A | 2015-05-27 | |||
| JP2001121442A | 2001-05-08 | |||
| JPH0265975A | 1990-03-06 | |||
| DE3938787A1 | 1991-05-29 | |||
| CN102501208A | 2012-06-20 |
Attorney, Agent or Firm:
SHANGHAI ESSEN PATENT&TRADEMARK AGENCY (CN)
上海翼胜专利商标事务所（普通合伙） (CN)
上海翼胜专利商标事务所（普通合伙） (CN)
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