Patent ID: 7970516
Filing Date: 2011-06-28
Classification: B60C,B60T,B60W,F16F

Abstract:
1. A vehicle control system comprising: a control unit that stores a vehicle model that is separated into a vehicle body model, a chassis model, and a tire model to estimate vibration states at respective portions of a vehicle; and an operation device controllable by the control unit and operative to change a motion state of the vehicle, wherein the control unit receives an input parameter to be input to the vehicle model from time to time, calculates estimate vibration states of the respective portions of the vehicle by using the vehicle model, and calculates control quantities according to the vibration states to control the operation device, wherein the tire model in the vehicle model includes front wheel tires, rear wheel tires and virtual coupling elements that virtually couple the front wheel tires and the rear wheel tires with each other, wherein the control unit calculates estimate vibration states of the front wheel tires and the rear wheel tires in a longitudinal direction of the vehicle, wherein the control unit calculates the estimate vibration states of the front wheel tires, the rear wheel tires and the virtual coupling elements, respectively, and calculates the control quantity of each vibration of the front wheel tires, the rear wheel tires and the virtual coupling elements to reduce the vibration toward zero or to increase the vibration, and the control unit calculates a total control quantity based on respective calculated control quantities and controls the operation device based on the total control quantity.