Front axle steering system, chassis and vehicle

Abstract

The invention provides a front axle steering system, a chassis and a vehicle, and belongs to the technical field of automobile steering systems. The front axle steering system comprises a steering engine, a tie rod, a driving assembly and a controller. The steering engine is slidably connected with a sub-frame of the vehicle. Two ends of the tie rod are respectively connected with the steering engine and front wheels of the vehicle. The driving assembly is installed on the auxiliary frame and connected with the steering engine. The controller is electrically connected with the driving assembly and used for controlling the driving assembly to drive the steering engine to move in the first direction, the toe-in angle of the front wheel is increased, and therefore the camber angle of the front wheel is increased. The controller controls the driving assembly to drive the steering engine to move in the first direction, the distance between the steering engine and the front axle can be increased, then the toe-in angle of the front wheel can be increased, the toe-in angle of the front wheel is increased, the camber angle of the front wheel is increased due to increase of the toe-in angle of the front wheel, and then the contact area of tires and the ground can be reduced, so that the rolling resistance of the tires is reduced; therefore, the energy consumption is reduced.

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