Steering control system for vehicle

Details Steering control system for vehicle Steering control system for vehicle

2011-04-26

2011-04-26

Silbermann, Joanne (Department: 3611)

Motor vehicles

Steering gear

With electric power assist

C180S422000, C701S041000

Reexamination Certificate

active

07931113

ABSTRACT:
A steering control section has a first steering angle correction amount calculating section, a second steering angle correction amount calculating section, and a motor rotational angle calculating section. The first correction amount calculating section calculates a first correction amount based on a vehicle speed and an actual steering wheel angle. The second correction amount calculating section calculates a second correction amount through multiplying a control gain corresponding to the vehicle speed with a value calculated by low-pass filtering a differential value of steering wheel angle. The motor rotational angle calculating section calculates a motor rotational angle corresponding to the value adding the first and second steering angle correction amount, and outputs it to a motor driving section so as to drive an electric motor for correcting the steering angle. Thereby, an unstable vehicle behavior due to a resonance of a yaw motion caused in the steering operation can be suppressed.

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