Fingerprint-based speed limiting device of automatic transmission automobile, and control method thereof

The invention provides a fingerprint-based speed limiting device of an automatic transmission automobile, and a control method thereof, belonging to the technical field of automobiles. The problem that the highest driving speed is not limited through fingerprint identification corresponding to different identities can be solved by the invention. The device comprises a fingerprint sensor for acquiring biological fingerprints and an EMS (electronic monitoring system), wherein an electronic air throttle and a fingerprint identification controller are respectively connected on the EMS, the fingerprint identification controller is connected with the fingerprint sensor, a host interface is further connected on the fingerprint identification controller, the fingerprint identification controller is used for receiving fingerprint data detected by the fingerprint sensor, performing storage, comparison and deletion on the fingerprint data in a fingerprint database according to input signals of the host interface and outputting a set control speed limiting signal to the EMS, and the EMS is used for controlling the opening degree of the electronic air throttle. The control method comprises the following steps of: A. performing fingerprint identification and registration; B. judging the control conditions for starting speed limitation; and C. judging fingerprint information. The device and the method are based on a fingerprint identification technology and can limit the highest driving speed for different users.