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Emergent vehicle brake early warning system

An early warning system and vehicle technology, applied in the field of vehicle safety systems, can solve the problems that the driver cannot see the driving state of the vehicle in front and cannot take timely risk-avoidance measures, and achieves accurate and reliable data, high positioning accuracy, and short transmission delay Effect

Active Publication Date: 2016-08-24
CHONGQING CHANGAN AUTOMOBILE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the prior art, the rear vehicle has certain limitations in judging the braking condition of the vehicle in front only by the brake light signal of the vehicle in front. state, resulting in the inability to take timely risk-avoiding measures

Method used

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  • Emergent vehicle brake early warning system
  • Emergent vehicle brake early warning system

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Embodiment Construction

[0026] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0027] Such as figure 1 As shown, both the vehicle 11 and the vehicle in front 12 are loaded with this system, and are located in the same lane and travel in the same direction, and the vehicle 12 in front brakes in an emergency. Wireless communication between vehicles is completed through DSRC dedicated short-range communication technology. DSRC is an efficient wireless communication technology, which can realize the identification and two-way communication of moving targets under high-speed movement in a specific area, and transmit image, voice and data information in real time.

[0028] Such as figure 2 As shown, the system includes: a GPS positioning module 21 , a dedicated short-range communication transceiver 22 , a data fusion module 23 , a central processing unit 24 and a CAN bus 25 .

[0029] Such as image 3 As shown, the specific process of the brake ...

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Abstract

The invention discloses an emergent vehicle brake early warning system which comprises a CAN bus, a central processor, a data fusion module, a GPS positioning module and a special short-distance communication transmitting-receiving end. The state information of a former vehicle can be actively acquired, and furthermore, with the combination of the state information of a vehicle of a user, a brake early warning signal can be judged and reminding can be output, so that collision accidents happening in emergent braking of vehicles can be avoided, and an active protection function for safe driving can be achieved. By adopting the emergent vehicle brake early warning system, the limits that a conventional distance detection sensor is short in measurement distance, small in detection angle and great in obstruction influence of a barrier can be broken through, the position information of the former vehicle and the vehicle of the user is acquired by using the GPS positioning module, real-time communication between vehicles is achieved by virtue of a DSRC special short-distance communication technique, a brake early warning signal can be judged, and a brake early warning function can be achieved.

Description

technical field [0001] The invention relates to a vehicle safety system, in particular to a vehicle emergency brake warning system. Background technique [0002] In many cases, the vehicle in front brakes urgently, but the vehicle behind cannot brake in time, often causing a rear-end collision. A search of the existing technologies found that the patent "Emergency Brake Anti-Rear-Collision Alarm System" with application number 201210511504.0 introduced an emergency brake anti-rear-collision system. In the brake lights, when the deceleration reaches the threshold, the brake lights output strobe; the patent application number 201110174361.4 "emergency brake alarm system and emergency brake alarm method" introduces an emergency brake alarm system, which is characterized by collecting vehicle Speed, acceleration and braking duration signals, calculate the average acceleration and compare it with the acceleration threshold to judge emergency braking, and send an alarm signal thr...

Claims

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Application Information

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IPC IPC(8): G08G1/16B60Q9/00
CPCG08G1/166B60Q9/008
Inventor 刘鑫李增文张盼蒲果牛雷
Owner CHONGQING CHANGAN AUTOMOBILE CO LTD
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