Invention Grant
- Patent Title: Narrow-frequency-band feedback control of steering pinion torque in an electric power steering system
- Patent Title (中): 电力转向系统中转向小齿轮扭矩的窄频带反馈控制
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Application No.: US12486085Application Date: 2009-06-17
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Publication No.: US08554417B2Publication Date: 2013-10-08
- Inventor: Jinghong Yu
- Applicant: Jinghong Yu
- Applicant Address: JP Tokyo
- Assignee: Honda Motor Co., Ltd.
- Current Assignee: Honda Motor Co., Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Rankin, Hill & Clark LLP
- Main IPC: B62D5/04
- IPC: B62D5/04 ; B62D6/00 ; G06F19/00 ; G06F17/00

Abstract:
A narrow band feedback control system is provided to mitigate a disturbance within a predetermined bandwidth that is received by an electric power steering (EPS) system within a vehicle. A torque sensor calculates a torque value associated with the disturbance applied to the EPS system, the torque sensor outputs a torque signal related to the torque value. A filter receives the torque signal, filters the torque signal to the bandwidth associated with the external disturbance, and outputs a filtered torque signal. An amplifier receives the filtered torque signal, adjusts the gain of the filtered torque signal, and outputs a filtered, amplified torque signal. A logic module receives the filtered, amplified torque signal, generates a counter torque signal that is an inverse of the filtered, amplified torque signal and outputs the counter torque signal to the EPS system to mitigate the torque received from the external source.
Public/Granted literature
- US20100324784A1 NARROW-FREQUENCY-BAND FEEDBACK CONTROL OF STEERING PINION TORQUE IN AN ELECTRIC POWER STEERING SYSTEM Public/Granted day:2010-12-23
Information query
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