Variable-runner semi-active hydraulic suspension

Abstract

The invention discloses a variable-runner semi-active hydraulic suspension, which comprises a hydraulic suspension body and an electronic control device, wherein the hydraulic suspension body comprises a rubber mainspring, a runner assembly, a packing cup, a bottom cover, a bolt and a liquid inlet pipeline, and the rubber mainspring, the runner assembly, the packing cup and the bottom cover are sequentially assembled into a whole from top to bottom; the bolt is in pressing rivet connection with the bottom cover, and the rubber mainspring comprises an inner core, an inner skeleton, an outer skeleton and a rubber body which are vulcanized into a whole; the runner assembly comprises a runner body, an upper runner plate, a lower runner plate, a decoupling film and a variable flow valve, and the side wall of the runner body is provided with two openings; the variable flow valve is provided with two openings and is in fit assembly with the runner body, and the electronic control device is in driving connection with the variable flow valve and can drive the variable flow valve and the runner body to relatively rotate. The variable-runner semi-active hydraulic suspension provided by the invention has a good damping effect when an engine is in an idling condition and a cruising condition.

Description

technical field [0001] The invention relates to the technical field of mounts, in particular to a semi-active hydraulic mount with variable channels. Background technique [0002] At present, people have higher and higher requirements on the performance of various aspects of automobile performance, especially in energy saving, environmental protection, safety performance and ride comfort. As a main source of vibration, the engine is transmitted from the powertrain to the frame or body through the suspension. Therefore, it is very important to minimize the transmission of engine vibration and noise to the body. The powertrain mount is the main component in the vibration transmission path, and its vibration isolation performance directly affects the vibration and noise conditions of the vehicle, and has an important impact on the comfort of the vehicle and the normal operation and life of the vehicle components. [0003] The powertrain mount system has a great influence on th...

AI Technical Summary

Problems solved by technology

[0004] Generally, ordinary hydraulic mounts can only show good damping performance in a certain frequency range, but cannot meet the requirements in the entire working range.

By increasing the damping, the requirements of low frequency, large amplitude and large stiffness can be met, that is, the excitation transmitted to the powertrain when the car passes through the pit, but at the same time, the increase of damping also increases the vibration transmission rate during idling operation and the vibration at high frequency Transmissibility, not conducive to vibration and noise reduction

Images