Speed limit sensing and vehicle speed control device

Abstract

The invention discloses a speed limit sensing and vehicle speed control device which comprises a speed limit signal generation and on-vehicle receiver, a vehicle speed sensor, an over-speed prompt and control device and an ECU, wherein the signal generation and on-vehicle receiver comprises a speed limit launcher and an on-vehicle GPS, and the over-speed prompt and control device comprises an air throttle control motor and an accelerator pedal sensor; the on-vehicle GPS, the vehicle speed sensor, the air throttle control motor and the accelerator pedal sensor are all connected with the ECU, the speed limit launcher launches and edits GPS signals with road speed limit information, the on-vehicle GPS receives the GPS signals and sends the GPS signals to the ECU, and when the current vehicle speed which is transmitted to the ECU by the vehicle speed sensor is larger than the road speed limit, the ECU controls the air throttle control motor to run and then controls the current vehicle speed. The device realizes reasonable control of existing devices by electric control to realize the control of vehicle speed limit, and utilizes precise positioning of GPS to realize precise sensing and receiving of speed limit.

Description

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AI Technical Summary

Problems solved by technology

Existing speed limit signals have physical speed limit signs, which are largely affected by weather conditions, while wir

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