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Method for automatically setting automobile maximum traveling speed according to road information

A technology of driving speed and road information, applied in control devices, vehicle components, input parameters of external conditions, etc., can solve the problems of easily distracting the driver's attention, troublesome operation, missed reports, etc., to improve driving safety and practicability. Strong, prevent the effect of car speeding

Inactive Publication Date: 2018-07-24
NANJING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The driver should always pay attention to the speed dashboard during driving to prevent the car from speeding, but sometimes the driver does not pay attention to the speed limit information on the road, and it is easy to speed up without paying attention. There are many Devices to prevent cars from speeding, such as electronic dogs with overspeed warning, but there are false alarms and false alarms, and some electronic dogs are also prohibited from being used in cars; there are also cars equipped with cruise control systems that need to manually set the cruise speed. Although speeding can be effectively avoided, the operation is cumbersome and easily distracts the driver's attention, especially on multi-level speed limit roads, even if the car is equipped with a cruise control system, speeding occurs from time to time

Method used

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  • Method for automatically setting automobile maximum traveling speed according to road information
  • Method for automatically setting automobile maximum traveling speed according to road information

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Embodiment Construction

[0020] as attached figure 1 As shown, in step 1, the current vehicle speed V and the road information of the current vehicle are obtained in real time, including road grade, speed limit, etc. Obtain the real-time vehicle speed V through the vehicle speed sensor, and send the vehicle speed to the ECU, obtain the current location and speed limit information of the vehicle through the vehicle GPS positioning and machine vision technology, and read the road grade and the road in the speed limit information database combined with the location information Grades and speed limits, divide road speed limits into six grades: expressways, first-class roads, second-class roads, third-class roads, fourth-class roads, and other speed-limited roads.

[0021] In step 2, establish a vehicle maximum speed threshold model based on road information, and calculate the maximum vehicle speed V m . Other speed-limited highways indicate that no real-time road information has been obtained or the spe...

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PUM

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Abstract

The invention belongs to the field of automobile speed control and discloses a method for automatically setting automobile maximum traveling speed according to road information. The method includes steps: acquiring current automobile traveling speed and current road information of an automobile, wherein the road information includes road grade, speed limiting and the like; automatically setting anautomobile maximum traveling speed threshold according to the acquired road information; sending the current automobile traveling speed and the maximum traveling speed threshold to ECU to compare, and sending corresponding traveling instructions to the automobile according to a comparison result of the speed threshold. By adoption of the method, traveling road information of the automobile can beacquired in real time, and the automobile maximum traveling speed is automatically set to prevent overspeed of the automobile, so that road traffic safety can be effectively improved.

Description

technical field [0001] The invention belongs to the field of vehicle speed control, in particular to a method for automatically setting the maximum driving speed of a vehicle in combination with road information. Background technique [0002] my country's urban roads and expressways have speed limits. Every year, traffic accidents caused by vehicles speeding account for a large proportion. There are clear penalties for vehicle speeding in traffic regulations. The driver should always pay attention to the speed dashboard during driving to prevent the car from speeding, but sometimes the driver does not pay attention to the speed limit information on the road, and it is easy to speed up without paying attention. There are many Devices to prevent cars from speeding, such as electronic dogs with overspeed warning, but there are false alarms and false alarms, and some electronic dogs are also prohibited from being used in cars; there are also cars equipped with cruise control sys...

Claims

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Application Information

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IPC IPC(8): B60W30/14
CPCB60W30/146B60W2520/28B60W2552/00
Inventor 吕亦江郭唐仪葛徐婷潘姝王若愚朱云霞伊特格勒孙豪郝浪郭进
Owner NANJING UNIV OF SCI & TECH
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