METHOD AND DEVICE FOR DETECTING UNSTABLE TRAVELING STATE OF VEHICLE

摘要

PURPOSE: A method/device for detecting the unstable traveling state of a vehicle are provided to advantageously expand and improve the unstable traveling state. CONSTITUTION: When the vehicle travels along a curve, an evaluation coefficient(Q) is formed by comparing a calculated lateral acceleration with a measured lateral acceleration. This lateral acceleration is measured by using an acceleration sensor or a yaw rate sensor corresponding to the acceleration sensor, for example. The calculated lateral acceleration is calculated through a steering angle(WLR) and a vehicle velocity(VX). The weighted coefficient(Q) being a scale concerning the stable or unstable traveling state of an automobile(K) is obtained from a difference signal. The coefficient(Q) can be displayed and can be sent to another controller such as an automatic shift device, a traveling mechanism adjusting device or an engine controller.