Title:
VEHICLE BEHAVIOR CONTROL DEVICE WITH WHEEL SLIP CONTROL DEVICE
Document Type and Number:
Japanese Patent JPH1159364
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To limit the upper limit of desired braking force for behavior control and the upper limit of the rate of change thereof in such a way that hunting does not result from interference with antiskid control. SOLUTION: In 81, a desired before-limit slip ratio S1 * is calculated from a desired before-limit braking force F0 * and the braking drive rigitity factor KS of wheels, and if, in 82, S1 * is determined to be greater than a maximum controllable slip ratio Smax , in 84 a desired after-limit slip ratio S2 * is limited to Smax and the upper limit of a desired after-limit braking force determined by multiplying S2 * by KS is limited to a slip-controllable maximum value. In 85, the deviation ΔS* of S2 * from the previous desired slip ratio S0 * is regarded as the desired rate of change of slip, and if in 86 ΔS* is determined to be faster than a set value ΔS0 a desired slip ratio S* is determined according to the direction of change of the desired slip ratio determined in 87, so that in 89, 90 the rate of change of the desired slip ratio S* is not greater than ΔS0 Therefore, the upper limit of the rate of change of the desired braking force calculated by multiplying S* by KS can be limited.
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Inventors:
NAITOU MOTOHIRA
Application Number:
JP22453997A
Publication Date:
March 02, 1999
Filing Date:
August 21, 1997
Export Citation:
Assignee:
NISSAN MOTOR
International Classes:
B60T8/00; B60T8/172; B60T8/1755; B60T8/1761; B60T8/24; B60T8/48; B60T8/58; (IPC1-7): B60T8/24; B60T8/58
Domestic Patent References:
| JPH08310364A | 1996-11-26 | |||
| JPH0880832A | 1996-03-26 | |||
| JPH07112659A | 1995-05-02 | |||
| JPH0585327A | 1993-04-06 | |||
| JPH0948338A | 1997-02-18 | |||
| JPH07186928A | 1995-07-25 | |||
| JPH04224447A | 1992-08-13 |
Attorney, Agent or Firm:
Akihide Sugimura (8 outside)