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Vehicle active emergency braking system and method and truck

An emergency braking and active braking technology, which is applied in the direction of brakes, vehicle components, braking transmissions, etc., can solve the problems of insufficient emergency braking efficiency, long response time, low safety factor of trucks, etc., and achieve improved emergency braking. Effectiveness, shorter reaction time, and increased safety factor

Inactive Publication Date: 2018-07-06
TIANJIN TRINOVA AUTOMOTIVE TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Compared with ordinary cars, trucks have the characteristics of heavy load, high center of mass, and shorter wheelbase, which makes the safety factor of trucks lower. If the brakes are not timely, truck accidents will bring greater economic and economic losses than car accidents. personal injury
At present, trucks already have many brake assist systems, such as manual cooling system, eddy current retarder, hydraulic retarder, exhaust brake, etc. The problem of insufficient performance

Method used

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  • Vehicle active emergency braking system and method and truck
  • Vehicle active emergency braking system and method and truck
  • Vehicle active emergency braking system and method and truck

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Under normal circumstances, the working mode of the automatic emergency braking system AEB (Autonomous Emergency Braking) is: when a possible collision risk is detected in front of the vehicle, it will issue an early warning to the driver through sound, image, vibrating seat, shaking the steering wheel, etc. Remind the driver to take measures to avoid collision; as the degree of danger increases, if the driver fails to respond correctly to the warning signal in time, the system will start to automatically brake with a certain braking force, and remind the driver while reducing the speed; When the risk of a collision becomes imminent or a collision is unavoidable, the system mitigates the severity of the collision by automatically applying the full brakes. The AEB system is commonly used in cars with hydraulic braking systems, but it is still in the development stage in vehicles using pneumatic braking systems.

[0034] An embodiment of the present invention provides a v...

Embodiment 2

[0046] The embodiment of the present invention also provides a vehicle active emergency braking method, which is applied to a vehicle including a pneumatic braking device, and the pneumatic braking device includes an operating braking air circuit and an active braking air circuit. Wherein, the above-mentioned active braking air circuit includes a first electromagnetic valve group and a first air channel, the first air channel is respectively connected with the air storage cylinder and the brake air chamber, and the first electromagnetic valve group is a normally closed valve. like Image 6 As shown, it is a schematic flow chart of a vehicle active emergency braking method provided by an embodiment of the present invention. Image 6 It can be seen that the steps of the vehicle active emergency braking method include:

[0047] Step S601: Obtain the distance between the vehicle and the obstacle in front, the speed of the vehicle and the driving information of the vehicle.

[00...

Embodiment 3

[0054] An embodiment of the present invention also provides a truck, which includes a truck body and the truck active emergency braking system provided in Embodiment 1 and one of its possible implementations.

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Abstract

The embodiment of the invention provides a vehicle active emergency braking system and method and a truck, and relates to the technical field of vehicle emergency braking. The vehicle active emergencybraking system comprises an electronic control device, a distance monitoring device, a vehicle monitoring device, a driving monitoring device and a pneumatic braking control device, wherein the distance monitoring device, the vehicle monitoring device, the driving monitoring device and the pneumatic braking control device are connected with the electronic control device respectively; the electronic control device computes compulsive braking distance according to the distance between a vehicle and a barrier, the vehicle speed, the load capacity and driving information, and judges whether the distance between the vehicle and the barrier is smaller than the compulsive braking distance or not, and according to the driving information, whether effective operation exists or not is judged; whenthe distance between the vehicle and the barrier is smaller than the compulsive braking distance, and when effective operation does not exist, the electronic control device controls an active brakinggas circuit to be started to carry out active braking. According to the vehicle active emergency braking system and method and the truck in the embodiment, response time of the vehicle active brakingsystem is shortened, emergency braking efficiency is improved, and the safety performance of the vehicle is improved.

Description

technical field [0001] The invention relates to the technical field of vehicle emergency braking, in particular to a vehicle active emergency braking system, method and truck. Background technique [0002] AEB (Autonomous Emergency Braking) means automatic emergency braking, also known as pre-collision safety system, which can assist the driver to brake through the system when danger is detected, thereby reducing or avoiding accidents. Specifically, the AEB system detects and recognizes the vehicle in front through the camera or radar, and in the event of a possible collision, it first uses sound and warning lights to remind the driver to perform braking operations to avoid collisions. If the driver still does not brake, and the system judges that a rear-end collision cannot be avoided, it will automatically apply the brakes to reduce the severity of the collision. At the same time, the AEB system also includes Dynamic Brake Support, which supplements braking force when the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60T7/22B60T13/68B60T13/66
CPCB60T7/22B60T13/662B60T13/683
Inventor 赵洵李艳亭俞伟林甲胜张璞李明聪李亮
Owner TIANJIN TRINOVA AUTOMOTIVE TECH CO LTD
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