- Patent Title: Motor shaft state detection method, motor control method, motor shaft state detection device, motor control device, vehicle height adjustment device, saddle-type vehicle
-
Application No.: US17694568Application Date: 2022-03-14
-
Publication No.: US12017496B2Publication Date: 2024-06-25
- Inventor: Masato Tokuhara
- Applicant: Hitachi Astemo, Ltd.
- Applicant Address: JP Hitachinaka
- Assignee: Hitachi Astemo, Ltd.
- Current Assignee: Hitachi Astemo, Ltd.
- Current Assignee Address: JP Hitachinaka
- Agency: Leason Ellis LLP
- Agent Edward J. Ellis; Melvin C. Garner
- Main IPC: B60G15/06
- IPC: B60G15/06 ; B60G17/015 ; B60G17/018 ; B60G17/019
Abstract:
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.
Public/Granted literature
Information query
