Title:
ハンズオンオフ検出装置、電動パワーステアリング装置、外部トルク推定方法およびハンズオンオフ検出装置制御プログラム
Document Type and Number:
Japanese Patent JP7124449
Kind Code:
B2
Abstract:
To provide a hands on-off detection device capable of executing robust hands-on/hands-off detection for road surface reaction torque or the like.SOLUTION: The hands on-off detection device includes: a torque sensor 29 fitted on an input shaft and an output shaft; an electric motor 30 connected with the output shaft; and a controller. The controller acquires a steering torque from the torque sensor, and acquires a rotor rotation angle and a motor current value from the electric motor, and calculates a motor torque. The controller estimates a disturbance torque, executes low-pass filter treatment for the disturbance torque and the steering torque, makes phase comparison between the disturbance torque and the steering torque after the low-pass filter treatment, and when it is determined that the disturbance torque and the steering torque have the same phase, determines the disturbance torque to be a torque input from the input shaft side.SELECTED DRAWING: Figure 1
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Inventors:
Ryo Minaki
Hideki Sawada
Yukie Fujiwara
Hideki Sawada
Yukie Fujiwara
Application Number:
JP2018101834A
Publication Date:
August 24, 2022
Filing Date:
May 28, 2018
Export Citation:
Assignee:
Nippon Seiko Co., Ltd.
International Classes:
B62D6/00; B62D5/04
Domestic Patent References:
| JP2017114324A | ||||
| JP2009096265A |
Attorney, Agent or Firm:
Sumio Tanai
Yuichiro Shimizu
Hiroki Ninai
Yuichiro Shimizu
Hiroki Ninai