Speed limit sensing and vehicle speed control device

A vehicle speed control and receiving device technology, applied in the direction of control devices, speed/acceleration control, measuring devices, etc., can solve problems affecting signal reception, etc., and achieve the effect of clear road information, accurate positioning, and accurate road speed limit information

Inactive Publication Date: 2009-10-14
ZHEJIANG UNIV
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  • Abstract
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Problems solved by technology

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

Method used

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  • Speed limit sensing and vehicle speed control device
  • Speed limit sensing and vehicle speed control device

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Example Embodiment

[0024] Such as figure 1 The device shown includes speed limit signal generation and vehicle receiving device, vehicle speed sensor, speeding prompt and control device, and ECU. The signal generation and vehicle receiving device includes speed limit transmitter 1 and vehicle GPS2. Speed ​​limit transmitter 1 is installed in the limit Speed ​​section, transmit GPS map signal edited with road speed limit information; overspeed prompt and control device includes throttle control motor 6 and accelerator pedal sensor 4; vehicle GPS2, vehicle speed sensor 5, throttle control motor 6 and accelerator pedal sensor 4 are all Connect to ECU3.

[0025] The vehicle speed sensor adopts a Hall vehicle speed sensor, and its structure is mainly composed of a ring gear, a Hall element, a permanent magnet and an electronic circuit. The working principle is that the magnetic field lines of the permanent magnet pass through the Hall element to the trigger ring gear. At this time, the ring gear is equi...

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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...

Claims

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Application Information

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IPC IPC(8): B60K31/04G01P3/487F02D11/10
Inventor 熊树生胡安庆石伟姜耀华李伟
Owner ZHEJIANG UNIV
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