| 摘要 |
PURPOSE:To obtain the turning round performance and the running stability of a vehicle concurrently and secure the both characteristics sufficiently by finding an instant antiphase component of the rear wheel steering amount in an optimum condition according to the running condition of a vehicle when the vehicle is turning. CONSTITUTION:The rear wheel steering control method of a vehicle is as follows: When the rear wheel in-phase steering amount deltaR is calculated after adding a correction deltaRC to a standard in-phase steering amount deltaRB according to the running condition in the turning operation, a standard antiphase steering amount deltaGB of the rear wheels according to the handle angular velicity thetaHA of the vehicle is corrected depending on a fuzzy inference from the road surface friction coefficient mu, the inclination alpha, and the lateral acceleration G operating to the vehicle, so as to find a correction antiphase steering amount deltaG, and the rear wheels are steered depending on a rear wheel steering amount deltaobtained by adding the rear wheel in-phase steering amount deltaR and the correction antiphase steering amount deltaG. |
