- 专利标题： Motor shaft state detection method, motor control method, motor shaft state detection device, motor control device, vehicle height adjustment device, saddle-type vehicle
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申请号： US17694568申请日： 2022-03-14
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公开(公告)号： US12017496B2公开(公告)日： 2024-06-25
- 发明人: Masato Tokuhara
- 申请人： Hitachi Astemo, Ltd.
- 申请人地址： JP Hitachinaka
- 专利权人： Hitachi Astemo, Ltd.
- 当前专利权人： Hitachi Astemo, Ltd.
- 当前专利权人地址： JP Hitachinaka
- 代理机构： Leason Ellis LLP
- 代理商 Edward J. Ellis; Melvin C. Garner
- 主分类号： B60G15/06
- IPC分类号： B60G15/06 ; B60G17/015 ; B60G17/018 ; B60G17/019
摘要：
This motor shaft state detection method has: a rotation determination step for determining, using a detected current waveform of a motor, whether or not to be a non-rotational state in which the rotational speed of the motor is smaller than a predetermined speed; a current determination step for determining whether or not to be a supply state in which the absolute value of current supplied to the motor is larger than a predetermined reference value; and a determination step for, when it is determined to be the non-rotational state in the rotation determination step and it is determined to be the supply state in the current determination step, determining that the motor is in a shaft locked state.
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