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

technical field [0001] The invention relates to a vehicle speed control device, in particular to a speed limit sensing and vehicle speed control device. Background technique [0002] With the development of the automobile industry and highway construction, the number of casualties caused by various traffic accidents every year is astonishing, resulting in huge economic losses. According to statistics, the main cause of various traffic accidents is the overloading and speeding of vehicles, and the latter is very random and difficult to correct. Moreover, due to the complex road conditions in China, the maximum speed allowed by different grades of roads is different. Speed ​​limiting devices are difficult to adapt to this situation. In response to this situation, it is extremely important to develop a device with an overspeed alarm and a vehicle speed control system for driving safety and automatic driving. [0003] There have been many research reports on vehicle speed limi...

AI Technical Summary

Problems solved by technology

Existing speed limit signals have physical speed limit signs, which are largely affected by weather conditions, while wireless transmitters have corresponding blind spots and intersections, which will affect the corresponding signal reception

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