Active emergency steering system and method for preventing vehicle rear-end collision
An emergency steering and steering direction technology, which is applied to vehicle components, external condition input parameters, control devices, etc., can solve problems such as instability, vehicle rollover, and rollover that cannot be completely avoided, so as to reduce steering and improve safety performance Effect
Active Publication Date: 2018-05-01
宁波吉润汽车部件有限公司 +2
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Problems solved by technology
[0004] Although when the vehicle is running at high speed, emergency steering is more conducive to avoiding rear-end collisions, but because the driver is in an emergency, turning the steering wheel quickly will cause the vehicle to roll over or become unstable.
In order to prevent the rollover of the vehicle, the current vehicle will be equipped with an electronic stability control system (Electronic Stability Control, ESC), but this system can only play the role of auxiliary anti-skid, and cannot completely avoid rollover
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[0039] In order to further explain the technical means and functions adopted by the present invention to achieve the intended invention purpose, the detailed description is as follows in conjunction with the accompanying drawings and preferred embodiments.
[0040] figure 2 A block diagram of the active emergency steering system for preventing vehicle rear-end collisions provided by the present invention, image 3 It is a schematic diagram of the front and rear vehicles before turning, Figure 4 It is a schematic diagram of a vehicle performing active emergency steering according to the active emergency steering system provided by the present invention. Such as Figure 2 to Figure 4 As shown, the active emergency steering system provided by the present invention includes a first sensor assembly 11, a second sensor assembly 12, a third sensor assembly 13, a judging unit 20 and an execution unit 30, and the judging unit 20 is more than the first sensor assembly 11, the second ...
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An active emergency steering system for preventing vehicle rear-end collision comprises a first sensor component, a second sensor component, a third sensor component, a judgment unit and an execution unit. The judgment unit judges the collision time of an existing vehicle and a preceding vehicle and the steering time of the existing vehicle steering to the emergency steering direction according to the information of the first sensor component to the third sensor component, comparison between the collision time and the steering time is conducted, and the judgment unit makes the existing vehicle to steer actively and emergently according to a comparison result, so that the existing vehicle is avoided from being collided with the preceding vehicle. According to the active emergency steering system and method for preventing the vehicle rear-end collision, the conditions around the existing vehicle and the conditions of the existing vehicle itself can be automatically analyzed, when collision between the existing vehicle and the preceding vehicle can not be avoided through a brake of the existing vehicle, the system can assist a driver in reducing occurrence of rear-end accidents through steering, and therefore the safety performance of the vehicle is improved.
Description
technical field [0001] The invention relates to the technical field of vehicle safety control, in particular to an active emergency steering system and method for preventing vehicle rear-end collision. Background technique [0002] On the expressway, serial rear-end collision accidents of vehicles frequently appear in the newspapers. The reason is usually that when the vehicle in front suddenly brakes suddenly, the vehicle behind follows the vehicle too closely, or the brakes are not timely, or the braking force is not enough, resulting in two accidents. It is caused by the inability of the vehicle behind to stop completely within the distance between the vehicles. In order to reduce the rear-end collision accidents of vehicles, many car companies have introduced the automatic emergency braking system (Autonomous Emergency Braking, AEB). Automatically brake the car to reduce the speed of the car, thereby preventing rear-end collisions. However, this system can only play a ...
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IPC IPC(8): B60W30/09B60W10/20
CPCB60W10/20B60W30/09B60W2510/202B60W2554/00
Inventor 徐杰
Owner 宁波吉润汽车部件有限公司