Brake control system and method for an unmanned vehicle

Abstract

The invention provides an unmanned vehicle braking control system and method. The unmanned vehicle braking control system comprises an electric cylinder, a braking pipeline system, a data collection card, a controller, a decision making layer, a wheel speed sensor for detecting vehicle speed and an oil pressure meter for detecting braking pressure of the braking pipeline system, the data collection card is used for collecting data of the wheel speed sensor and the oil pressure meter, the decision making layer sends an expected vehicle speed signal to the controller, and the controller is used for collecting data transmitted by the decision making layer and data of the oil pressure meter. Braking effect controllable in braking force is accurately realized by collecting current vehicle speed and current braking pressure, comparing them with expected vehicle speed and expected braking pressure and controlling extension and contraction of the electric cylinder.

Description

technical field [0001] The invention relates to the technical field of vehicle braking control, in particular to a braking control system and method for an unmanned vehicle. Background technique [0002] An unmanned vehicle is an intelligent vehicle that perceives the road environment through an on-board sensor system, automatically plans a driving route, and controls the vehicle to reach a predetermined target. It uses on-board sensors to perceive the surrounding environment of the vehicle, and controls the steering and speed of the vehicle based on the road, vehicle position and obstacle information obtained from the perception, so that the vehicle can drive safely and reliably on the road. Integrating many technologies such as automatic control, architecture, artificial intelligence, and visual computing, it is a product of the highly developed computer science, pattern recognition, and intelligent control technologies. It is also an important symbol to measure a country'...

AI Technical Summary

Problems solved by technology

Although this technical solution can also realize the braking of the vehicle, the main function of the worm gear mechanism and the rack and pinion mechanism is to transmit force and torque. In terms of transmission accuracy, the accuracy of the two is relatively poor, and the technical solution The transmission scheme is relatively complex, and the cumulative transmission error is relatively large. Therefore, although the technical solution uses the force sensor as the detection of the braking force, the detected braking force cannot be used as the feedback amount and control amount of the braking force control, so accurate braking and deceleration cannot be achieved. control

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