초록 ▼

In the case that a brake controller is installed to a 4 wheel driven vehicle, braking force control should be carried out effectively enough so that running stability of the vehicle can be up-graded at cornering. The brake controller 40 calculates differential value of aimed yaw rate, differential v

In the case that a brake controller is installed to a 4 wheel driven vehicle, braking force control should be carried out effectively enough so that running stability of the vehicle can be up-graded at cornering. The brake controller 40 calculates differential value of aimed yaw rate, differential value of predicted yaw rate on low friction road and deflection of the two differential values. And also it calculates deflection of real yaw rate and aimed yaw rate. Then the brake controller 40 determines aimed braking force and applies the aimed braking force to a selected wheel to carry out braking control. The torque distribution controller 70 receives control parameters and signals of status of brake control and carries out torque distribution control based on the parameters and signals through the hydraulic multi-plate clutch 21. The hydraulic multi-plate clutch 21 is so controlled with certain weak engaging force as to make each wheel rotate freely, when braking control is carried out by applying braking force to a selected wheel. Thus the brake controller 40 can perform as aimed.

대표청구항 ▼

[What is claimed is:] [1.]braking force control means connected to said brake actuator for controlling a braking force to each of said wheels, and for generating a braking force control signal; anda torque distribution controller responsive to said braking force control signal for establishing a sma

[What is claimed is:] [1.]braking force control means connected to said brake actuator for controlling a braking force to each of said wheels, and for generating a braking force control signal; anda torque distribution controller responsive to said braking force control signal for establishing a smaller engaging force to said center differential than a usual value of engaging force upon application of said braking force to said front wheels or said rear wheels so as to stabilize controllability of said vehicle upon cornering by increasing a free rotation of said wheels, and to improve a response characteristic during a running of the vehicle on a road.