Title:
SUSPENSION CONTROL DEVICE FOR VEHICLE
Document Type and Number:
Japanese Patent JP2023054955
Kind Code:
A
Abstract:
To suppress discomfort of ride quality arising from implementation of preview control in a situation where an acquisition error of information on a vehicular self position is large.SOLUTION: An electronic control unit provided on a vehicular suspension control device implements preview control for reducing vibration of a spring upper structure body according to control of an actuator. The electronic control unit executes: position acquisition processing for acquiring self position information; road surface information acquisition processing for acquiring a road surface displacement related value at a predicted passage position of a control object wheel after a preview time from a current time, from a road surface data map obtained by mapping the road surface displacement related value in association with a position; reliability degree calculation processing for calculating a degree of reliability of the self position information; and control processing for implementing preview control on the basis of the road surface displacement related value at the predicted passage position. In the control processing, if the degree of reliability is equal to or lower than a first threshold, the electronic control unit implements the preview control in a suppressed mode compared with when the degree of reliability is higher than the first threshold.SELECTED DRAWING: Figure 11
Inventors:
FURUTA HIROTAKA
Application Number:
JP2021163996A
Publication Date:
April 17, 2023
Filing Date:
October 05, 2021
Export Citation:
Assignee:
TOYOTA MOTOR CORP
International Classes:
B60G17/015; B60G23/00
Attorney, Agent or Firm:
Patent Attorney Takada / Takahashi International Patent Office