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Rear vehicle reminding device and method used during work of automatic emergency braking system

A technology of automatic emergency braking and reminder device, which is applied in signal devices, vehicle parts, transportation and packaging, etc. It can solve the problems of difficult deceleration behavior of the vehicle behind, rear-end collision accidents, and inability to control brake lights, etc., so as to reduce the probability of rear-end collisions , the effect of reducing the probability of rear-end collision

Inactive Publication Date: 2019-11-12
BEIJING WONDER CAREWAY AUTOMOTIVE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the existing AEB system cannot control the brake light when it is working, so that the following vehicle without AEB system cannot judge the rapid deceleration behavior of the vehicle and cause a collision accident that should not occur
At the same time, some AEB systems are not perfect, and there will be some wrong-entry braking operations, which will cause more difficult-to-judgment deceleration behaviors for the vehicles behind, resulting in serious rear-end collisions
In addition, in daily multi-vehicle follow-up driving, it often happens that the vehicle driving in the middle judges the deceleration of the vehicle in front late and performs emergency braking to avoid rear-end collision with the vehicle in front, but collides with the front vehicle after being rear-ended by the vehicle behind. car condition

Method used

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  • Rear vehicle reminding device and method used during work of automatic emergency braking system
  • Rear vehicle reminding device and method used during work of automatic emergency braking system
  • Rear vehicle reminding device and method used during work of automatic emergency braking system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Based on the above principles, such as figure 2 As shown, for the traditional brake light, the active control of the brake light can be completed by adding a high-side driving circuit 2 in the AEB system 1. Therefore, the rear vehicle reminder device when the automatic emergency braking system is working provided by the present invention , including a high-side drive circuit 2, a brake switch 3 and a brake light / AEB work warning light 4, wherein the high-side drive circuit 2 is a P-channel MOS tube.

[0022] The gate of the high-side driving circuit 2 is connected to the output end of the AEB system 1, the drain of the high-side driving circuit 2 is connected to the positive pole of the power supply 5 of the vehicle, and the negative pole of the power supply 5 is grounded. The source of the high-side drive circuit 2 is connected in parallel with one end of the brake switch 3 and the brake light / AEB working warning light 4, the other end of the brake switch 3 is connect...

Embodiment 2

[0024] Based on the above principles, such as image 3 As shown, for the AEB system 1 that cannot increase the high-side drive circuit 2, the controller of the brake light or the AEB work warning light 4 is designed separately to respond to the first-level early warning signal sent by the AEB system 1 through the CAN bus 6, and then control the system. The flashing and extinguishing of moving light or AEB work warning light 4, therefore, the rear vehicle reminding device when the automatic emergency braking system provided by the present invention includes brake switch 3, brake light / AEB work warning light 4 and brake light A controller 7, wherein the brake light controller 7 includes a high-side driving circuit 2, a microcontroller 8 and a CAN interface, and the high-side driving circuit 2 is a P-channel MOS transistor.

[0025] The input end of the microcontroller 8 is connected to the CAN interface of the AEB system 1 through the CAN bus 6 through the CAN interface, the out...

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Abstract

The invention relates to a rear vehicle reminding device and method used during work of an automatic emergency braking system. The rear vehicle reminding device is characterized by comprising a high side driving circuit, a braking switch and a braking lamp / AEB work warning lamp, wherein the high side driving circuit is a P-channel MOS pipe; a grid electrode of the high side driving circuit is connected with the output end of the automatic emergency braking system; a drain electrode of the high side driving circuit is connected with a positive electrode of a power source, and a negative electrode of the power source is grounded; a source electrode of the high side driving circuit is in parallel connection with one ends of the braking switch and the switching lamp / AEB work warning lamp, theother end of the braking switch is connected with the power source, the other end of the braking lamp / AEB work warning lamp is grounded, and the high side driving circuit is used for controlling the braking lamp / AEB work warning lamp to be turned on or turned off through the braking switch according to primary early-warning signals output by the automatic emergency braking system. The rear vehiclereminding device and method can be widely applied to the technical field of intelligent vehicles.

Description

technical field [0001] The invention relates to a rear vehicle reminder device and method, in particular to a rear vehicle reminder device and method when an automatic emergency braking system (AEB) is working, and belongs to the technical field of intelligent vehicles. Background technique [0002] With the development of intelligent assisted driving and automatic driving, a large number of vehicles have installed intelligent assisted driving systems, and the automatic emergency braking system is undoubtedly the most installed assisted driving product at present. It can also actively perform braking intervention when the driver's reaction lags behind, so as to prevent collision or reduce the severity of collision, and maximize the safety of passengers and drivers. [0003] However, the existing AEB system cannot control the brake light when it is working, so that the following vehicle without AEB system cannot judge the rapid deceleration behavior of the vehicle and cause a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60Q1/44
CPCB60Q1/44
Inventor 柳延蔚刘赛李振张卫岗刘妹廷
Owner BEIJING WONDER CAREWAY AUTOMOTIVE TECH
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