Mixed-mode magneto-rheological hydraulic suspension device

Abstract

The invention discloses a magneto-rheological hydraulic suspension device which comprises an upper connecting bolt, a synthetic framework, a rubber main spring and a main spring support. The main spring support is fixed on a support, the lower end of the support is connected with a lower connecting bolt, an upper liquid chamber partition plate and a lower liquid chamber partition plate are arranged at the junction of the main spring support and the support, and symmetrical tapered bosses are arranged at the centers of the upper liquid chamber partition plate and the lower liquid chamber partition plate and provided with tapered through holes. A rubber bottom film is clamped between the lower liquid chamber partition plate and the support, a chamber defined by the synthetic framework, the rubber main spring, the main spring support and the upper liquid chamber partition plate is an upper liquid chamber, a chamber defined by the lower liquid chamber partition plate and the rubber bottom film is the lower liquid chamber, a connecting rod is arranged in the upper liquid chamber, one end of the connecting rod is connected onto the synthetic framework, the other end of the connecting rod is connected with main electromagnetic coils, and the main electromagnetic coils are located in the tapered through holes. The magneto-rheological hydraulic suspension device enlarges a damping adjustment range and can isolate vibration and noise of an engine within a wide frequency band and improves the noise reducing performance of the suspension at high frequency.

Description

technical field [0001] The patent of the invention belongs to the technical field of automobile powertrain hydraulic mount, and relates to a kind of automobile powertrain hydraulic mount which adopts the working principle of magneto-rheological hybrid mode to adjust damping. Background technique [0002] Automotive powertrain hydraulic mount refers to the vibration isolation element that connects the automobile powertrain with the frame or body. It is formed by adding a liquid damping mechanism on the basis of the traditional rubber mount. The characteristic that the frequency and excitation amplitude vary. The suspension system should have large damping and high stiffness characteristics in the low-frequency region to attenuate the large-amplitude vibration of the powertrain caused by output torque fluctuations and vehicle acceleration (or braking), and attenuate the powertrain caused by road excitation The low-frequency vibration; in the high-frequency region, it should h...

AI Technical Summary

Problems solved by technology

Due to the defects in the coil layout of the suspension, the flow direction of the magneto-rheological fluid cannot be perpendicular to the magnetic induction line generated by the electromagnetic coil when the suspension is in operation, but parallel to the magnetic induction line, so the magneto-rheological effect is relatively weak , so that the damping adjustment range of the suspension is relatively small

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