Commercial vehicle with four-wheel steering function

Abstract

The invention discloses a commercial vehicle with a four-wheel steering function. The commercial vehicle comprises a rear steering axle and a rear wheel steering controller, wherein the rear steering axle comprises a rear wheel steering driving axle and a rear wheel steering returning mechanism; the rear wheel steering driving axle comprises an axle body, a left steering knuckle and a right steering knuckle, two steering knuckle arms, two tie rod arms as well as a rear steering tie rod, wherein the left steering knuckle and the right steering knuckle are positioned at the two ends of the axle body, respectively; the two tie rod arms are fixed on the left steering knuckle and the right steering knuckle, respectively; the rear steering tie rod is used for connecting the two tie rod arms; the rear wheel steering returning mechanism comprises a hydraulic returning cylinder as well as a motor, a rear wheel steering gear, a steering pitman arm and a rear wheel steering track rod, wherein the motor, the rear wheel steering gear, the steering pitman arm and the rear wheel steering track rod are connected with each other in sequence; one steering knuckle arm is connected with the rear wheel steering track rod to drive the rear wheel to steer; the other steering knuckle arm is connected with a piston rod of the hydraulic returnable cylinder; and the rear wheel steering controller is electrically connected with the motor and also electrically connected with a hydraulic electromagnetic valve of a hydraulic source of the rear wheel steering gear. According to the commercial vehicle with the four-wheel steering function, disclosed by the invention, four-wheel steering is realized and the maneuvering ability and handling stability are also improved.

Description

Technical field [0001] The present invention relates to the field of automobile technology, in particular to a commercial vehicle with four-wheel steering. Background technique [0002] Four-wheel steering, as a revolutionary technology in the field of automobile chassis control, can greatly improve the handling stability and mobility of automobiles. At present, four-wheel steering technology has been applied to cars, but it is rarely involved in the field of commercial vehicles in China. Four-wheel steering technology is of great significance for improving the mobility and handling stability of commercial vehicles. Summary of the invention [0003] The main purpose of the present invention is to provide a commercial vehicle with four-wheel steering, which aims to realize the four-wheel steering of the commercial vehicle while improving its mobility and handling stability. [0004] To achieve the above objective, the present invention provides a commercial vehicle with four-wheel s...

AI Technical Summary

Problems solved by technology

At present, four-wheel steering technology has been applied to cars, but it is rarely involved in the field of commercial vehicles in China. Four-wheel steering technology is of great significance for improving the maneuverability and handling stability of commercial vehicles.

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