Braking control system for vehicle

Abstract

When the behavior of a vehicle becomes unstable during an automatic braking operation for avoiding contact of the vehicle with an object, the restoring of the unstable state backed up to effectively avoid the contact of the vehicle with the object. When a radar device in the vehicle, detects the object exist ahead of the vehicle in the direction of movement of the vehicle, the possibility of the contact of the vehicle with the object is determined by a determining device from the relative positional relationship between the vehicle and the object, based on the result of the detection. When it is determined that there is the possibility of the contact, an automatic braking device operates a vacuum booster to carry out an automatic braking operation. When the unstable state of the vehicle is detected by an unstable state detector during the automatic braking operation by the automatic braking device, the automatic braking device forcibly continues the automatic braking operation, until the vehicle reaches a state in which the unstable state is not detected, whether or not it is determined that there is the possibility of the contact of the vehicle with the object. Thus, it is possible to precisely control the continuation and finishing of the automatic braking operation to reliably achieve the avoidance of the contact of the vehicle with the object, while preventing the behavior of the vehicle from further becoming unstable due to the discontinuation of the automatic braking operation.

Dependencies are inferred from the claim text.