Vehicle rear-end collision avoidance system, method and single-chip microcomputer

An anti-rear-end collision and automobile technology, applied to vehicle components, external condition input parameters, control devices, etc., can solve the problems of only considering safety, low development level, scattered research institutions, etc., achieve low cost, improve reliability and Compatibility, the effect of reducing the delay of the system

Active Publication Date: 2016-07-06
HUNAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, although foreign automobile anti-rear collision systems have achieved certain research results, due to cost and other issues, the system is only limited to some luxury cars.
However, the research on automobile anti-rear-collision control s

Method used

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  • Vehicle rear-end collision avoidance system, method and single-chip microcomputer
  • Vehicle rear-end collision avoidance system, method and single-chip microcomputer
  • Vehicle rear-end collision avoidance system, method and single-chip microcomputer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0055] Embodiment 1 of the present invention provides an automobile rear-end collision prevention system, such as figure 1 As shown, it includes: an environment perception module 10 , a main control unit 20 , an execution unit 30 , and an on-board unit (OnBoardUnit, OBU) 40 .

[0056] The main control unit 20 is connected with the environmental perception module 10 through the peripheral communication interface, and is connected with the executive unit 30 of the own vehicle through a line; is connected with the vehicle-mounted unit 40 of the vehicle through a dedicated short-range communication (DedicatedShortRangeCommunications, DSRC) interface; The unit 40 communicates with the vehicle-mounted unit 40 on the front vehicle through the DSRC technology of the vehicle ad hoc network;

[0057] The vehicle-mounted unit 40 on the vehicle in front controls the brake light of the vehicle in front of the execution unit 30 in the vehicle in front through the interrupt signal generated ...

Embodiment 2

[0134] Embodiment 2 of the present invention also provides a single-chip microcomputer, which is embedded in Embodiment 1 such as figure 2 The implementation process shown.

Embodiment 3

[0136] Embodiment 3 of the present invention provides an automobile anti-collision method, and its implementation process is as follows figure 2 As shown, the specific implementation steps are the same as the relevant description of the implementation process of the single-chip microcomputer in the first embodiment above, and will not be described in detail here.

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PUM

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Abstract

The invention relates to a vehicle rear-end collision avoidance system, method and single-chip microcomputer. A main control unit (20) is connected with an environmental perception module (10) through a peripheral communication interface, is connected with an executing unit (30) of a self vehicle through a line, and is connected with a vehicle-mounted unit (40) of the self vehicle through a dedicated short range communication DSRC interface; the vehicle-mounted unit (40) of the self vehicle communicates with the vehicle-mounted unit (40) on the front vehicle through a DSRC technique of a vehicle-mounted Ad-hoc network; the vehicle-mounted unit (40) on the front vehicle controls a front vehicle brake light of the executing unit (30) in the front vehicle through an interrupt signal generated in an electronic hardware interface. Through a preset procedure by the single-chip microcomputer, according to the speed of the self vehicle, relative vehicle speed, and the distance between the self vehicle and the front vehicle, the main control unit (20) calculates a critical security vehicle distance, judges the dangerous degree of collision generated between the self vehicle and the front vehicle in the travelling process, and then triggers relevant action of the executing unit. According to the automobile rear-end collision avoidance system, method and single-chip microcomputer disclosed by the invention, the probability of vehicle rear-end collision can be greatly reduced.

Description

technical field [0001] The invention relates to the field of automobiles, in particular to an automobile rear-end collision prevention technology. Background technique [0002] With the rapid growth of global car ownership, cars have brought great convenience to people's travel, promoted the development of social economy and the progress of human material civilization, but the resulting road traffic accidents have caused great harm to people's lives, property and The national economy has caused huge losses. According to the World Health Organization: Every year, the number of people injured in traffic accidents in the world is about 20 million to 50 million, the number of people killed in road traffic accidents is about 1.3 million, and the economic losses caused by road traffic accidents are about 518 billion. dollars. Road traffic accidents are about to become the third largest direct cause of people's abnormal death besides mental stress disorder and cardiovascular dise...

Claims

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Application Information

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IPC IPC(8): B60W30/08
CPCB60W30/08B60W2520/10B60W2554/00B60W2554/801B60W2554/804B60W2556/65
Inventor 陈涛方威
Owner HUNAN UNIV
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