SUPPORT RIGIDITY CONTROL APPARATUS AND VEHICULAR SEAT

摘要

PROBLEM TO BE SOLVED: To make it possible to improve comfortableness of riding of a crewman.SOLUTION: A support rigidity in a longitudinal direction or a roll direction with respect to an upper body of a crewman seating on a seat is varied by a support rigidity variation part 2, a high frequency component of a lateral jerk as a result of differentiation of a lateral acceleration of a vehicle or the lateral acceleration is acquired by a vehicle state detection part 30, and the support rigidity variation part 2 is controlled by a control part 40 in such a manner that a support rigidity in the longitudinal direction or the roll direction is reduced as the high frequency component of the lateral jerk or the lateral acceleration of the vehicle is increased.