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Vehicle braking rear-end collision pre-warning method based on CAN bus

A CAN bus, rear-collision warning technology, applied in vehicle components, brake safety systems, circuits or fluid pipelines, etc., can solve the problem of rear-end traffic accident drivers not being able to respond in time, to improve practicability and reliability, speed measurement Accurate and timely processing results

Inactive Publication Date: 2018-05-04
NORTHEAST FORESTRY UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0003] The purpose of the present invention is to solve the problem that the driver of a rear-end collision traffic accident cannot respond in time, and to provide a method for rear-end collision warning based on the CAN bus vehicle brake rear-end warning that can calculate the safety distance in time

Method used

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  • Vehicle braking rear-end collision pre-warning method based on CAN bus
  • Vehicle braking rear-end collision pre-warning method based on CAN bus
  • Vehicle braking rear-end collision pre-warning method based on CAN bus

Examples

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Effect test

Embodiment 1

[0026] A kind of method based on CAN bus vehicle brake rear-end collision early warning, this method comprises the steps:

[0027] (1) The radar sensor installed on the front bumper of the car measures the distance and relative speed to the target in front in real time;

[0028] (2) The automatic vehicle speed sensor, lateral distance sensor, steering angle sensor, road surface condition sensor and brake pedal sensor installed on the vehicle measure the vehicle signal and send it to the information collection unit. The automatic vehicle speed sensor is a Hall speed sensor. The speed signal is processed by the cycle measurement method;

[0029] (3) The signal measured by the radar sensor and the signal in the information acquisition unit are processed and sent to the main control unit through the CAN bus communication interface;

[0030] (4) The main control unit judges the driving safety according to the obtained data, and sends it to the display-sound and light alarm unit to...

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Abstract

The invention discloses a vehicle braking rear-end collision pre-warning method based on a CAN bus. In the driving of vehicles in China, a driver carries out the response in dependence on observing the circumstance of a front vehicle only, but the driver has the response time. The method comprises the following steps: (1) measuring a distance and a relative speed from a front target object in realtime by a radar sensor installed on a front bumper of the vehicle; (2) measuring vehicle signals by an automatic vehicle speed sensor, a lateral distance sensor, a steering angle sensor, a pavement condition sensor and a brake pedal sensor which are installed on the vehicle and sending to an information collecting unit; (3) transmitting the processed signal measured by the radar sensor and the signals in the information collecting unit to a main control unit through a CAN bus communication interface; and (4) according to the obtained data, judging the driving safety by the main control unit,and sending to a displaying-sound-light alarm unit, displaying the speed and distance and alarming in real time. The method is used for the vehicle braking rear-end collision pre-warning based on theCAN bus.

Description

Technical field: [0001] The invention relates to the technical field of vehicle braking, in particular to a method for vehicle braking rear-end collision warning based on CAN bus. Background technique: [0002] Rear-end collision is the most common type of accident in my country's current road traffic accidents. Rear-end collision is closely related to the braking of vehicles. At present, vehicles in our country can only rely on the driver to observe the situation of the vehicle in front to react and brake the vehicle. , but the driver has time to react. In many cases, traffic accidents have occurred before the driver has reacted. Therefore, it is particularly important to be able to carry out rear-end warning of the vehicle. Invention content: [0003] The purpose of the present invention is to solve the problem that the driver of a rear-end collision traffic accident cannot respond in time, and provides a method for rear-end collision warning based on CAN bus vehicle brak...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60T17/22B60R16/023
CPCB60R16/0232B60T17/22
Inventor 王宪彬孔德璇李晓艺
Owner NORTHEAST FORESTRY UNIVERSITY
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