Automobile transverse and longitudinal collision avoidance active coordinating system and coordination method thereof

Abstract

The invention discloses an automobile transverse and longitudinal collision avoidance active coordinating system and a coordination method thereof. The automobile transverse and longitudinal collision avoidance active coordinating system comprises a forward looking radar, a speed sensor, a lateral acceleration sensor, a front wheel turning angle sensor, a judging module, a signal integration module, a weighing unit, a steering unit, a braking unit, a shifting unit and an ECU. When working, the ECU calculates the safety distance under the current working condition and compares the safety distance with the relative distance, input by the forward looking radar, of two automobiles; when the difference of the safety distance and the relative distance is smaller than a set threshold value, the weighing unit endows different weights to the speeds, the longitudinal accelerations, the lateral accelerations and the front wheel turning angles of the automobiles, and the effect that braking and steering are coordinated to avoid collision is achieved. The multifunctional collision avoidance modes can be provided for the automobiles, and the effect that steering and braking are conducted simultaneously can further be achieved, so that the effectiveness of automobile collision avoidance is improved, and drivers can be assisted in manipulating the automobiles under any working conditions.

Description

technical field [0001] The invention relates to the field of automobile auxiliary driving, in particular to an automobile horizontal and vertical active coordinated collision avoidance system and a coordination method thereof. Background technique [0002] Automobile assisted driving technology has attracted more and more attention from the public, especially with the introduction of artificial intelligence, people's expectations for driverless cars are getting higher and higher. For driverless cars, in the field of steering, the most basic is active collision avoidance technology. [0003] Effective active collision avoidance requires not only a safe distance model suitable for the working conditions, but also a reasonable coordination of the relationship between steering and braking. In addition, the speed of the vehicle's lane change should be controlled within a reasonable range to avoid excessive speed that may lead to swaying. Tail, rollover and other adverse reaction...

AI Technical Summary

Problems solved by technology

Although this will make the collision avoidance system more detailed and the division of labor of each system more clear, but in a sense, it actually increases the calculation process, which makes the overall time lag, and the collision avoidance efficiency and safety performance are reduced.

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