Vehicle dynamic characteristic control apparatus

U.S. Patent Number: 5341296

Abstract: A vehicle dynamic characteristic is controlled using a first unit for controlling braking forces to be applied to left and right wheels of at least one of the wheel pairs, a second unit for controlling a steering angle of one of the wheel pairs, and a third unit for controlling the first and second units. In the absence of vehicle braking, the third unit calculates a first target value for a first parameter related to a first motion of the vehicle based upon vehicle operating conditions and controls the second unit to bring the first parameter to the first target value. The third unit calculates a value of a second parameter related to a second motion of the vehicle provided when the first parameter is controlled to the first target value in the absence of vehicle braking. In the presence of vehicle braking, the third unit calculates changes in cornering powers of the respective wheel pairs and modifies the first target value based upon the calculated cornering power changes. The third unit controls the second unit to bring the first parameter to the modified first target value and controls the first unit to bring the second parameter to the calculated value.

Inventors: Yasuno; Yoshiki (Yokohama, JP), Ito; Ken (Yokohama, JP)

Assignee: Nissan Motor Co., Ltd. (Yokohama, JP)

Application Number: 07/750,563

Issued: 1994-08-23

Expired: 2006-08-23

Classes: 701/70 ; 180/197; 180/422; 303/146; 701/41; 701/48

Field of search: 364/426.01,424.05,426.02 280/91,771 180/140,142,197

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