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Title:
VEHICLE MOTION CONTROL SYSTEM
Document Type and Number:
Japanese Patent JP3463530
Kind Code:
B2
Abstract:

PROBLEM TO BE SOLVED: To allow different vehicles to realize required motions irrespective of a road surface and the like by classifying transfer characteristics of a specific number of model formulae for calculating a target value of the vehicle motion into a primary characteristic capable of adjusting transition and steady-state characteristics and a secondary characteristic capable of adjusting the transition characteristics only for tuning values derived from different vehicles.
SOLUTION: Among two setting portions BL1 and BL2 for setting target values of the vehicle motion, the first setting portion BL1 calculates a target yaw rate ψ' and a target yaw acceleration ψ" based on the detected angle θ and the detected vehicle speed VSP using parameters in accordance with the vehicle speed with the transfer function between the steering angle and the target yaw rate formed as the primary/secondary characteristics. The second setting portion BL2 calculates a target lateral velocity Vγ and a target lateral acceleration V'γ using the transfer function between the steering angle and the lateral velocity. The first and the second rear wheel steering angle instruction value calculation portions BL3 and BL4 calculate the first and the second target rear wheel steering angle ∫R1, ∫R2, respectively, and the rear wheel steering angle instruction value calculation portion BL5 calculates the target rear wheel steering angle ∫R so as to control the rear wheel steering angle device 2, thus simplifying the tuning operation.


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Inventors:
Yasushi Kikuchi
Kazutaka Adachi
Hideki Kudo
Takaaki Eguchi
Application Number:
JP25891497A
Publication Date:
November 05, 2003
Filing Date:
September 24, 1997
Export Citation:
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Assignee:
Nissan Motor Co., Ltd
International Classes:
B62D6/00; B62D7/14; B62D101/00; B62D113/00; B62D137/00; (IPC1-7): B62D6/00; B62D7/14
Domestic Patent References:
JP752816A
JP415166A
JP4300783A
JP6321087A
JP725320B2
Attorney, Agent or Firm:
Tetsuya Mori (3 others)