Importance

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Abstract

In a vehicle to vehicle distance control device when a headway distance between a controlled vehicle in which the device is provided and a forward vehicle approaches or falls below a predetermined value a control unit controls the vehicle speed of the controlled vehicle so as to keep the headway distance at a predetermined value. When the device becomes unable to detect the presence of a forward vehicle, a constant speed control is provided for the controlled vehicle using either the controlled vehicle speed before the device became unable to detect the forward vehicle or a corrected vehicle speeds until an accelerator is operated. After the accelerator is operated, speed control is performed using a vehicle speed set by a driver of the vehicle.

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First Claim