A detachable vehicle semi-active stabilizer bar system and control method

Abstract

The invention provides a detachable semi-active anti-roll bar system for automobiles, including a stabilizer bar, an electromagnetic clutch, a magneto-rheological damper and a controller; the stabilizer bar includes a left half bar and a right half bar, and the left half bar One end of the half rod is installed on the lower swing arm of the vehicle suspension through a magneto-rheological damper; one end of the right half rod is installed on the lower swing arm of the vehicle suspension; the controller connects the left half rod and the right half rod by controlling the electromagnetic clutch or disconnected; the controller controls the magneto-rheological damper to generate damping force according to the running parameters of the vehicle. One end of the right half rod is installed on the lower swing arm of the vehicle suspension through a vertical link. The invention can realize three different working modes of no stabilizer bar, passive stabilizer bar and semi-active stabilizer bar. Among them, the semi-active stabilizer bar can change the torque of the stabilizer bar in real time as the body rolls through the change of current without the need for a direct power source, improving the stability and ride comfort of the body.

Description

technical field [0001] The invention relates to the field of automobile suspension, in particular to a detachable automobile semi-active lateral stabilizer bar system and a control method. Background technique [0002] The stabilizer bar is an extremely important component on today's vehicles. In order to improve the ride comfort, most of the vehicle suspensions have low stiffness, which is easy to cause the body to roll when turning. The stabilizer bar can reduce the vehicle roll angle and improve the stability of the vehicle body. [0003] At present, most of the vehicles used are passive stabilizer bars. When the body rolls, one end of the stabilizer bar is lifted up and the other end is pressed down. The displacement difference between the two ends of the stabilizer bar is used to generate an anti-rolling moment to adjust the body posture. However, the rigidity of the passive stabilizer bar is fixed and cannot be adjusted in real time as the body bounces. If the stiff...

AI Technical Summary

Problems solved by technology

Although its structure is relatively simple and easy to assemble, the hydraulic system is nonlinear, the control accuracy is not high, and the hydraulic structure needs to be driven by the engine, so it is not suitable for electric and hybrid vehicles.

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