In the view of criminal proceedings, in order to improve the authority of forensic conclusions, following issues should be emphasized: first, improvement of the admittance system; second, establishment of the scientific appraisal procedure; third, improvement of the administrative management system; last, establishment of the cross-examination system for forensic conclusions.

This paper summarized and analyzed the basic structure,working principle and existent problems of the five systems-namely ,automobile electronic guard against theft,vehicles colliding automatic warning,person protecting air cushion,tyre leaking air warning and night vision-of the new type automobile abroad at present,and advanced the e.

Electronic Stability Program-ESP is a new initiative security control system,which can control the motion of the vehicle avoid accidents, according to the driver\'s purpose , road surface condition and status of vehicle,and the ESP can maximum limit improve the manipulation stability and steering security.