| 摘要 |
PROBLEM TO BE SOLVED: To provide an electric power steering device capable of suppressing the change of a responsive feeling in steering caused by a gyromoment generated in a wheel. SOLUTION: The electric power steering device 1 is equipped with a wheel speed sensor 40 detecting a rotational angular velocity of a wheel, a roll angle detection part 10 detecting a roll angle and a roll angular velocity of a vehicle body, a camber angle calculation part 20 calculating a ground camber angular velocity relative to the roll angular velocity based on the ratio of the ground camber angle of the wheel relative to the roll angle and the roll angular velocity, a gyromoment calculation part 30 calculating the gyromoment based on the inertia moment of a wheel rotation system including the wheel, the rotational angular velocity, and the ground camber angular velocity, and an EPS control part 50 controlling an assist force so as to cancel the calculated gyromoment. COPYRIGHT: (C)2006,JPO&NCIPI |
