Unmanned chassis system of vehicle based on CAN buses

Abstract

Disclosed is an unmanned chassis system of a vehicle based on CAN buses. The system is suitable for refit of heavy vehicle chassis with unmanned systems. The system comprises a chassis controller 1, avehicle body control system 2, a gearbox electrical control system 3, an engine electrical control system 4, an electronic brake system 5, an electrical control steering system 6, a start / flameout control device 7, a manual / automatic shifting switch 8 and associated electrical pipelines and harnesses; the chassis controller (1) and other chassis electrical control module systems are connected through CAN bus interfaces respectively to achieve mutual information transmission in a preset CAN message form; the chassis controller 1 is connected with an unmanned system 10 of the vehicle through aCAN bus interface, data information interaction is achieved to monitor data of a vehicle chassis, and the control over the vehicle chassis is achieved.

Description

technical field [0001] The invention relates to the technical field of automatic control of an unmanned vehicle system, in particular to an unmanned chassis system of a heavy vehicle. Background technique [0002] In recent years, the unmanned autonomous driving technology of automobiles has gradually matured. Specific to heavy-duty vehicles, in order to realize unmanned driving of heavy-duty vehicles, the unmanned control system must at least realize the control of the vehicle engine, gearbox, braking system and steering system; at the same time, based on the consideration of safety and versatility, no Human-driven cars need to continue to retain the original human-driven mode. At present, the unmanned driving system of heavy vehicles still uses the traditional electromechanical control method to control the vehicle chassis. The chassis electronic control module of this traditional electromechanical control method is generally composed of sensing elements, electronic cont...

AI Technical Summary

Problems solved by technology

[0003] First, poor reliability

This method requires the installation of driving components such as control motors and hydraulic cylinders and mechanical components such as driving connecting rods on the vehicle chassis. The unmanned driving control system directly controls the vehicle accelerator, shift lever, brake pedal and other actuators through these installed components. , the system is complicated, the reliability is low, and various drives and actuators need to occupy a certain space in the cab

[0004] Second, the adaptability of modification is poor

In the absence of a chassis specially developed for unmanned heavy-duty vehicles, since the accelerator, brake, and shift mechanism of each model are different to varying degrees, it is necessary to install unmanned vehicles on different types of vehicle chassis. The control system, the electromechanical control actuator of the unmanned driving system must readjust the parameters such as the control angle of the throttle and the control stroke of the shift handle, and even need to change the mechanical structure, which is poor in adaptability to various models.

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