An intelligent braking method and system for a heavy-duty intelligent transport vehicle

Abstract

The invention belongs to the field of vehicle braking control, and specifically discloses an intelligent braking method and system for a heavy-duty intelligent transport vehicle. The method includes: judging the current braking mode according to the working state of the transport vehicle, and calculating the variation of the adhesion force of the driving wheel and the driven wheel of the transport vehicle respectively according to the difference between the target deceleration and the actual deceleration and the feedback torque, so as to generate a transport vehicle. The adjustment amount of the brake valve of the driving wheel and the driven wheel of the vehicle, so that the adjustment value can adjust the pressure value of the brake chamber of the driving wheel and the driven wheel, so that the transport vehicle can be parked at a constant target deceleration during the braking process of the vehicle. The system includes a main control module, a vehicle controller VCU, a vehicle speed sensor, an EBS brake controller, a parking brake module, a redundant brake module, a drive motor connected to a driving wheel, and a drive motor feedback torque collector. The invention ensures reasonable brake distribution of the brakes, and also enables the transport vehicle to park at a constant target deceleration during the service braking process.

Description

technical field [0001] The invention belongs to the field of vehicle braking control, and more specifically relates to an intelligent braking method and system for a heavy-duty intelligent transport vehicle. Background technique [0002] With the continuous development of new energy vehicles and automatic driving technology, the electronic control technology of automobile chassis braking system is also developing continuously. In particular, ADAS, AEB and other technologies are constantly being used in automobiles, and the requirements for braking system technology are also getting higher and higher. It is required that the vehicle not only has manual braking control, but also needs to have automatic braking control function. The EHB electronic hydraulic brake system is different from the traditional vacuum booster brake system. It can realize the active brake function by electronically controlling the brake pressure of the master cylinder and wheel cylinder of the hydrauli...

AI Technical Summary

Problems solved by technology

However, this patent does not take the feedback torque of the driving motor into consideration, so that when performing braking distribution, the actual adjustment amount deviates greatly from the theoretical adjustment amount

[0004] Based on the above-mentioned defects and deficiencies, it is urgent to propose an intelligent braking method for heavy-duty intelligent transport vehicles in this field, and construct an intelligent braking method with good reliability, fast response speed, and strong braking ability to solve the problem of braking in the prior art. The degree of intelligence is not high, and there will be potential safety hazards when applied to unmanned heavy-duty intelligent transport vehicles

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