Electrically controlled braking system of unmanned commercial vehicle

Abstract

The invention relates to an electrically controlled braking system having a redundancy function, and discloses an electrically controlled braking system of an unmanned commercial vehicle. The electrically controlled braking system consists of a main ADV controller, a backup ADV controller, a main battery pack, a backup battery pack, a front two-channel pressure control module, a rear two-channel pressure control module, breaking gas chambers, spring brake cylinders, gear rings, rotating speed sensors, gas pipelines for connection, and a wiring harness for connection, wherein the two ADV controllers are vehicle control units and are separately provided with storage batteries for supplying electricity; a controller chip module, four sets of two-position two-way normally closed solenoid valves, two sets of relay valves for accelerating running brake response, and two sets of barometric sensors are integrated in the front two-channel pressure control module; and a controller chip module, four sets of two-position two-way normally closed solenoid valves, two sets of relay valves for accelerating running brake response, and two sets of barometric sensors are integrated in the rear two-channel pressure control module. According to the electrically controlled braking system disclosed by the invention, through adoption of dual power supply of dual electric control loops and dual CAN communications, the vehicle can be guaranteed not to quit electrically controlled braking under the condition that any single power supply or CAN communication is ineffective, so that the braking safetyof the unmanned vehicle is effectively guaranteed; and requirements for L5 grade unmanned driving for braking systems can be met.

Description

technical field [0001] The invention relates to an electronically controlled brake system with redundant functions, in particular to an electronically controlled service brake system for unmanned commercial vehicles using a double-circuit air brake system. Background technique [0002] With the development of automobile technology, intelligence has become the development strategic goal of automobile manufacturers in various countries, and the ultimate goal of automobile intelligence is unmanned driving. On the one hand, the unmanned driving technology of commercial vehicles can solve the pressure of rapidly increasing labor costs, and on the other hand, it can also avoid traffic accidents caused by fatigue driving, especially in relatively closed places such as mines and ports. The application prospect is very broad. For unmanned commercial vehicles, it is particularly important to have a safe and reliable braking system. Although the traditional electronically controlled ...

AI Technical Summary

Problems solved by technology

Although the traditional electronic control braking system can implement braking through the electronic control system, since the electronic control system is only a loop of the braking system, once it fails, the driver can only rely on the driver to step on the brake pedal to achieve braking.

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