Active lift transfer method for improving safety of automobile emergency avoidance working condition

Abstract

The invention discloses an active lift transfer method for improving the safety of an automobile emergency avoidance working condition in the field of automobile safety control, which absorbs air at the lower part of a rear axle through dense holes uniformly distributed in two rear axle air hoods, reduces the air pressure at the rear axle of a chassis, and conveys the absorbed air to two front axle air hoods and blows out the absorbed air; the air pressure at the front axle of the chassis is increased, so that the insufficient steering characteristic of the emergency automobile under the deceleration avoidance working condition is improved; air at the rear axle is absorbed through the dense holes evenly distributed in the rear axle air hood on one side and conveyed to the front axle air hood on the other side to be blown out, meanwhile, air at the front axle is absorbed through the dense holes evenly distributed in the front axle air hood on one side and conveyed to the rear axle air hood on the other side to be blown out, and air at the chassis of the emergency automobile can be transferred in an opposite-side crossed mode. Therefore, the purpose of active transfer of air lift isachieved, the transverse load transfer rate of the emergency automobile during steering avoidance is reduced, and the driving safety of the automobile during steering avoidance of the emergency automobile is improved.

Description

technical field [0001] The invention belongs to the field of vehicle safety control, and relates to an active lift transfer method for improving the safety performance of a vehicle when the vehicle is in an emergency avoidance condition. Background technique [0002] In the actual driving of the car, it is rare for both parties to coordinate and actively avoid the situation. Even if the vehicle actively avoids, accidents often occur due to the lack of timely communication between the front and rear vehicles. In order to solve the problem of being able to notify the vehicles in front to avoid emergency vehicles in time and reduce the problem of giving way without knowing that there are emergency vehicles behind, the document of Chinese Patent Application No. 201710541532.X proposes a vehicle emergency avoidance system and method, which uses Internet of vehicles service The platform receives the driving information of the emergency vehicle, and judges the ordinary vehicle that...

AI Technical Summary

Problems solved by technology

[0003] In the actual emergency avoidance conditions of the car, the emergency vehicle will use braking deceleration, emergency steering, or emergency braking steering to avoid the vehicle in front in most cases, but when the emergency vehicle brakes and decelerates, the center of mass of the vehicle moves forward , leading to an increase in the front axle load, a decrease in the rear axle load, an increase in the cornering stiffness of the front wheels, a decrease in the side slip angle, and a decrease in the cornering stiffness of the rear wheels. Increased characteristics, worsened emergency vehicle steering characteristics

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