Importance

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Abstract

Disclosed is an automatic safety driving distance control device for vehicle. The device includes a microcomputer which, within the range of 0-120 km/hr, can adjust the safety distance between the vehicle and the front vehicle according to the speed data transmitted from the speedometer and can automatically control the speed of the vehicle to maintain a safety distance from the front vehicle so as to avoid collision. When the vehicle is moving, the microcomputer calculates the safety distance between both vehicles according to the speed of the vehicle and the actual distance from the front vehicle according to the data from the distance detector. If the distance is too short, it will automatically motivate the brake motor to cause the vehicle to decelerate and the brake lights to turn on; if the distance is too great, it will automatically motivate the accelertion/deceleration motor to cause the vehicle to accelerate so that a safety distance is kept between both vehicles. If the front vehicle stops, then the brake motor and acceleration/deceleration motor will be motivated to stop the vehicle. If the front vehicle moves forward, the acceleration/deceleration motor will also be motivated, and the vehicle moves forward, keeping a safety distance from the front vehicle and maintaining a safety speed according to the value set by the speed limit device.

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First Claim