Active Lift Transfer Method for Improving the Safety of Automobiles in Emergency Avoidance Conditions

Abstract

The invention discloses an active lift transfer method in the field of vehicle safety control to improve the safety of vehicles in emergency avoidance conditions. The air in the lower part of the rear axle is absorbed through dense holes evenly distributed on the air covers of the two rear axles, resulting in a lift at the rear axle of the chassis. The air pressure is reduced, and the absorbed air is sent to the two front axle air covers to blow out, causing the air pressure at the front axle of the chassis to increase, thereby increasing the understeer characteristics of the emergency vehicle under deceleration and avoidance conditions; through one side of the rear axle air cover The evenly distributed dense holes on the upper side absorb the air at the rear axle and send it to the other side for blowing out from the front axle air cover. The side rear axle air cover is blown out, which can transfer the air at the chassis of the emergency vehicle to the opposite side to achieve the purpose of active transfer of air lift, reduce the lateral load transfer rate of the emergency vehicle when turning and avoiding, and improve the speed of the emergency vehicle when steering and avoiding. The vehicle is safe to drive.

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

Images