Vehicle rear wheel active steering system and vehicle

Abstract

The invention provides a vehicle rear wheel active steering system and a vehicle. The vehicle rear wheel active steering system comprises a base body, a driving unit, a driving piece and two executing pieces, wherein the base body and the driving unit are fixedly arranged on a vehicle body, the driving piece can be driven by the driving unit to move in the width direction of the vehicle body in the base body, the two executing pieces are connected between the driving piece and wheels on the two sides, moreover, each executing piece is pushed and pulled by the driving piece to be capable of driving the corresponding wheel connected with each executing piece for steering, moreover, the driving piece can push the executing pieces through elastic pieces, or, the driving piece can pull the executing pieces through the elastic pieces, so that the executing pieces has different strokes when being pulled or being pushed, and then the two rear wheels can have different steering angles. According to the vehicle rear wheel active steering system, vehicle rear wheel steering can be actively controlled, the vehicle steering flexibility can be improved, meanwhile, the rear wheels on the two sides of the vehicle can have different steering angles, the tire eccentric wear can be reduced, and the service life of a tire can be prolonged.

Description

technical field [0001] The invention relates to the technical field of vehicle parts, in particular to a vehicle rear wheel active steering system. The invention also relates to a vehicle provided with the vehicle rear wheel active steering system. Background technique [0002] With the development of automobile technology, the requirements for the comfort, handling and safety of automobiles are getting higher and higher. Existing vehicles with only front-wheel steering are prone to oversteer when turning at high speeds, and in severe cases, may occur. The tail phenomenon is not conducive to the driving stability of the vehicle. When turning at low speed, especially for large and medium-sized vehicles, the turning radius is large, which affects the flexibility of the vehicle's steering. However, the existing front wheel steering system can form a steering trapezoid through hard point arrangement, which can realize different turning angles of the wheels on both sides when tu...

AI Technical Summary

Problems solved by technology

[0002] With the development of automobile technology, the requirements for the comfort, handling and safety of automobiles are getting higher and higher. Existing vehicles with only front-wheel steering are prone to oversteer when turning at high speed, and in severe cases, it may occur The tail phenomenon is not conducive to the driving stability of the vehicle. When turning at low speed, especially for large and medium-sized vehicles, the turning radius is large, which affects the flexibility of the vehicle's steering

However, the existing front wheel steering system can form a steering trapezoid through hard point arrangement, which can realize different turning angles of the wheels on both sides when turning, but the rear wheel steering cannot realize different turning angles of the wheels on both sides through hard point arrangement due to the layout space problem, which is easy Cause partial wear of the wheel, affect the service life of the tire, and affect the driving safety of the vehicle

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