Active braking system applied to unmanned formula car

Abstract

The invention relates to an active braking system applied to an unmanned formula car. The active braking system comprises a first braking main cylinder, a second braking main cylinder, a third brakingmain cylinder, a fourth braking main cylinder, a braking pedal, a first two-position three-way electromagnetic valve, a second two-position three-way electromagnetic valve, a control system, a linearmotor and the like. Two sets of acting main cylinders are adopted, independent braking functions in an unmanned mode and a driver driving mode are achieved by switching a braking loop through an electromagnetic valve, the scheme is different from a traditional scheme that a brake pedal used in the driver driving mode is compressed through a mechanical transmission structure, and switching of theacting main cylinders and the braking loop in different driving modes is achieved. The two sets of acting main cylinders are more flexible in arrangement mode, can be arranged outside a front cockpitand are suitable for FSAC racing cars with narrower space and more compact structures, so that the problems of mutual interference of active and passive modes, shortage of arrangement space and the like are solved; the linear motor can quickly drive the braking main cylinders through a DCDC converter, so that the racing car is braked emergently, and the EBS function is achieved.

Description

technical field [0001] The present invention relates to a braking system based on Chinese college students' formula driverless driving (FSAC) racing car, in particular to a master cylinder and braking system that can be switched between driverless mode and driver driving mode and is applied to driverless formula racing cars. Active braking system of the dynamic circuit. Background technique [0002] Adhering to the lofty ideal of "China's Creation Drives the Future" and taking China's cultivation of new-age automotive engineers as the starting point, the Chinese College Student Driverless Formula Competition (FSAC) was founded by the Society of Automotive Engineers of China in 2017 and has been successfully held for three sessions so far. The competition focuses on cultivating intelligent and connected vehicle technical talents and information security talents. Since the competition includes driver driving and automatic driving in unmanned mode, there are special requiremen...

AI Technical Summary

Problems solved by technology

At present, the mainstream design in China is to use a small servo motor through mechanical transmission, such as a linkage mechanism to compress the brake pedal used in the driver's driving mode to achieve service braking, and then set up a cable mechanism or cylinder to realize the EBS function, but this has inevitable defects. For example, the mechanical structure of active mode and driver driving mode is prone to interference, and it is not easy to arrange in a small cockpit, which hinders the braking performance of the racing car.

Images