An intelligent vehicle driving system based on active safety

Abstract

The invention discloses an active safety-based intelligent vehicle driving system, which includes an anti-rollover actuator, a control module, a gas generating module and a sensor unit. The anti-rollover actuator is symmetrically installed on both sides of the vehicle frame, and includes a mechanism housing Body, injection mechanism for injecting supports, rotary drive mechanism, air port switch mechanism, center of gravity transfer mechanism and translation transmission mechanism, the mechanism housing is fixedly installed on the vehicle frame and its end close to the outside of the vehicle body is a semicircle structure, so The rotary drive mechanism includes a fixed shell and a rotatable container rotatably connected in the fixed shell, the gas generating module is arranged in the rotatable container, and the two ends of the rotatable container are symmetrically equipped with electrically controlled outlets. valve. The present invention achieves a better anti-rollover effect than the prior art through continuous execution of multiple anti-rollover actions. At the same time, the actual lateral extension length of the injected support is small, reducing the probability of secondary damage and preventing rollover. The effect is also better.

Description

technical field [0001] The invention belongs to the field of automatic driving systems and relates to an active safety-based intelligent vehicle driving system. Background technique [0002] At present, in the field of automatic driving technology, active suspension, differential braking, active steering, chassis integrated control and other methods are mainly used to adjust the roll angle of the vehicle to prevent rollover accidents that may be caused by turning. Among them, it is necessary to detect the lateral acceleration and roll angle and calculate the lateral load transfer rate as the judgment index for starting each anti-rollover actuator. However, when the wheels are laterally hindered by low terrain obstacles during the turning process, the lateral load transfer rate will increase sharply. At this time, an actuator that can quickly apply the righting moment opposite to the rollover direction is required to Respond immediately when the measured roll angle reaches t...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a smart car driving system based on active safety to solve the lack of an unmanned driving system that integrates multiple anti-rollover mechanisms such as air injection, center of gravity adjustment, and auxiliary support in the prior art, resulting in anti-side Difficult arrangement of the rollover mechanism, the support point of the auxiliary support in the anti-rollover process is prone to be too close to the rollover fulcrum or the lateral extension distance is long, which affects the reliability of the rollover prevention and the technical problems of the driving safety of the car afterwards

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