Automatic emergency rear protective device and method

Abstract

The invention discloses an automatic emergency rear protective device and method. The automatic emergency rear protective device comprises a frame, a driving mechanism, a rear bumper and a control device. The driving mechanism is mounted on the frame and in transmission connection with the rear bumper, and the control device is electrically connected with the driving mechanism. By adoption of an electromechanical integration technology, trafficability can be improved while safety of rear vehicles in collision can be guaranteed, and less proneness to damages of the rear protective device is guaranteed when the vehicle runs normally; when rear-end collision is possibly caused by the fact that own vehicle slows down or stops or the vehicle behind runs at a high speed or accelerates suddenly,the automatic emergency rear protective device is started, a danger warning of collision with the vehicle behind is provided for a driver, then the driver can lower the rear bumper to an operating position, and accordingly the damage degree of collision accidents can be decreased.

Description

technical field [0001] The invention relates to the technical field of vehicle safety, and more specifically relates to an automatic emergency protection device and method. Background technique [0002] At present, the research on the rear protection device of heavy-duty vehicles at home and abroad is mainly based on the purely mechanical rear protection device. Driving on bad ground causes damage to the rear protective device, and its good protective function cannot be guaranteed. In addition, because the rear protection distance of heavy vehicles is relatively high from the ground, when cars or other types of vehicles collide with heavy vehicles, it is easy to cause cars or other vehicles to "drill" into the rear suspension of heavy vehicles, resulting in relatively large traffic accidents. [0003] Although the adjustable vehicle rear protection based on electromechanical integration has been developed at present, its cost is relatively high, its weight is relatively lar...

AI Technical Summary

Problems solved by technology

[0002] At present, the research on the rear protection device of heavy vehicles at home and abroad is mainly based on the purely mechanical rear protection device. Driving on bad ground causes damage to the rear protective device, and its good protective function cannot be guaranteed

In addition, because the rear protection distance of heavy vehicles is relatively high from the ground, when cars or other types of vehicles collide with heavy vehicles, it is easy to cause cars or other vehicles to "drill" into the rear suspension of heavy vehicles, resulting in relatively large traffic accidents.

[0003] Although the adjustable vehicle rear protection based on electromechanical integration has been developed at present, its cost is high, its weight is large, its practicability and durability are poor, and it is not easy to popularize and promote.

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