System and method used for maintaining safe distance

A technology of safe vehicle distance and vehicle distance, which can be used in signal devices and other directions to solve problems such as traffic accidents and reduce the number of false alarms.

Active Publication Date: 2014-03-26
ZHEJIANG GEELY HLDG GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

In high-speed driving, if the car does not keep a safe distanc

Method used

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  • System and method used for maintaining safe distance
  • System and method used for maintaining safe distance

Examples

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Embodiment Construction

[0025] exist figure 1 middle:

[0026] The steering monitoring unit 101 is a current flowmeter, which is connected with the turn signal lamp of the own vehicle, and is used to obtain the current change of the turn signal lamp of the own vehicle to monitor whether the vehicle turns. Wherein, the turning on and off of the turning signal represent respectively whether the vehicle is turning or not turning. When the turn signal is not turned on, the current of the turn signal is zero, and when the turn signal is turned on, the current of the turn signal will suddenly increase, so the steering monitoring unit 101 can obtain the steering state of the vehicle by judging the change of the current value. The turn monitoring unit 101 can also be a logic level detector, which can obtain the turn signal signal from the CAN bus by being connected to the CAN bus, or can also be connected with the flasher of the vehicle and obtain the signal of the flasher from the flasher. to judge whethe...

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Abstract

The invention provides a system used for maintaining safe distance. The system comprises a steering monitoring unit used for monitoring whether a vehicle steers or not, a distance measuring meter mounted on the vehicle and used for measuring distance between the vehicle and an ahead vehicle, a tachymeter used for acquiring traveling speed of the vehicle, an alarm and a controller used for receiving monitoring results of the steering monitoring unit. When the vehicle does not steer, the controller compares the distance with a preset safe distance according to the traveling speed of the vehicle, and when the distance is smaller than or equal to the safe distance, the controller controls the alarm to give to alarming signals; when the vehicle steers or the distance is larger than the safe distance according to the traveling speed of the vehicle, the controller controls the alarm not to give out the alarming signals. The invention further provides a method used for maintaining safe distance.

Description

technical field [0001] The invention relates to the technical field of automobile safety, in particular to a system and method for maintaining a safe distance between vehicles. Background technique [0002] The safe inter-vehicle distance refers to the minimum distance between the vehicle in front and the vehicle in the safe driving state. If the current car breaks down or brakes suddenly, the car can decelerate and brake within a safe distance to avoid rear-end collisions. [0003] The speed of vehicles on the expressway is very fast, and the safe distance between vehicles is especially important in the state of high-speed driving. The "Road Traffic Safety Law of the People's Republic of China" stipulates that when a motor vehicle is driving on the expressway, when the speed exceeds 100 kilometers per hour, the safe distance between vehicles is more than 100 meters; when the speed is lower than 100 kilometers per hour, the minimum safe distance between vehicles must not be...

Claims

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Application Information

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IPC IPC(8): B60Q9/00
Inventor 王宁关帅王海林刘强杨安志吴成明冯擎峰
Owner ZHEJIANG GEELY HLDG GRP CO LTD
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