An active control method for a high-speed tire blowout vehicle

Abstract

The invention discloses an active control method for a high-speed flat tire automobile. On the basis of differential braking and active front wheel steering, the influence of tire beading is added to actively control the flat tire automobile. Through the control of the non-punctured wheel, an additional yaw moment is applied to counteract the yaw moment and impact caused by the puncture, thereby improving the driving safety of the car after the puncture. The whole system includes the external environment perception layer, the vehicle state information collection and processing layer, the steering and braking decision-making layer, and the execution layer.

Description

Technical field: [0001] The invention belongs to the field of active safety of automobiles, and in particular relates to an active control method for automobiles with high-speed punctured tires, aiming at improving the driving safety of automobiles with punctured tires and reducing or avoiding the occurrence of secondary accidents. Background technique: [0002] A tire blowout seriously threatens the life safety of passengers, and a high-speed tire blowout is even more serious. According to statistics and investigations, the number of deaths caused by tire blowouts accounts for 49.81% of the total number of traffic accident deaths, the number of injured people accounts for 63.94%, and the proportion of direct property losses is as high as 43.38%. [0003] As the only part of the car in contact with the road, tires not only carry the weight of the car body, buffer and absorb the impact and vibration of the road, but also provide the longitudinal and tangential forces required...

AI Technical Summary

Problems solved by technology

[0004] In the existing chassis integrated control system, there is no module for tire blowout control, and effective control cannot be implemented in the first time. This also leads to car crashes and fatalities in the event of a tire blowout at high speed.

[0005] At the same time, due to differences in the ability of drivers to handle accidents and psychological panic in the face of emergencies, it is difficult to respond effectively in the first place, and excessive operations or even wrong operations often occur, which further deteriorates the driving state of the car and causes secondary accidents. Accidents, resulting in vicious traffic accidents

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