Driving rear wheel steering mechanism based on crank connecting rod mechanism

Abstract

Disclosed is a driving rear wheel steering mechanism based on a crank connecting rod mechanism. A steering mechanism controller is additionally arranged at the mass center of a vehicle, one end of the steering mechanism controller is connected with an electricity supply of the vehicle through a circuit to lead out a control signal, and the other end of the steering mechanism controller is connected with a steering electromotor through a circuit to transmit the control signal. A speed regulating mechanism supporting plate is additionally arranged on a rear axle shell of the vehicle, a steering electromotor and a steering speed regulating mechanism are arranged, and a worm wheel spline shaft of the steering speed regulating mechanism outputs power. A steering connecting rod mechanism is hinged to two rear wheel vertical columns of the vehicle, one end of the steering connecting rod mechanism is driven through the worm wheel spline shaft, and the other end of the steering connecting rod mechanism outputs power to the rear wheel columns to drive rear wheels to rotate. The crank connecting rod structure is adopted, the movement response is rapid, the size is small, the weight is small, and energy consumption is low; the turning radius of the vehicle is effectively decreased, the high-speed stability of the vehicle is strengthened, and the safety stability coefficient of the vehicle is promoted; and particularly, the instable condition, caused by high-speed tire bursting and similar incidents, of the vehicle with a rear wheel steering function is reduced, and the accidental loss is reduced.

Description

technical field [0001] The invention relates to an active rear wheel steering mechanism of a motor vehicle, in particular to an active rear wheel steering mechanism based on a crank linkage mechanism for the vehicle rear wheel to deflect automatically without being controlled by its own steering machine. Background technique [0002] There are no patents and academic articles available for reference about the four-wheel steering technology in recent years, and some automobile manufacturers are making bold attempts. [0003] There are professional racing cars such as off-road vehicles and monster trucks. The rear wheel steering system of these vehicles is controlled by professional drivers. [0004] The hydraulic system is controlled by a special joystick, which in turn controls the rear wheels to achieve steering. [0005] The BMW 7 Series models that use electric motors to actively drive the rear wheels [0006] For large luxury cars, the ever-increasing wheelbase brings ...

AI Technical Summary

Problems solved by technology

[0024] Porsche's rear-wheel steering technology can be described as a bold innovation, but at the same time as the high limit, it also brings more difficult control technology, accompanied by a greater risk of loss of control

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