Automobile, powertrain suspension system and its torsion tie rod

Abstract

The invention discloses an automobile, a powertrain suspension system and a torsion-resistant pull rod thereof, comprising: a main spring outer frame, a main spring inner core connected to a passive end, an elastic rubber main spring, and a rubber bush connected to a driving end; The outer frame of the main spring is fixedly connected with the rubber bushing, and the inside of the shell is filled with magnetorheological fluid; the excitation structure includes a bobbin and an excitation coil, and an inertia flow channel is formed between the bobbin and the shell; the upper piston rod and the main spring The inner core is fixed along the axial direction of the upper piston rod through the connecting piece, and is connected with relative movement in the radial direction; it has a decoupling flow channel connecting the upper chamber and the lower chamber, and has a decoupling membrane for on-off decoupling flow channel . Through the parallel action of the hydraulic unit and the rubber unit, the high-frequency self-decoupling internal double channel is set, and the fluid property of the magneto-rheological fluid is used to maintain low dynamic stiffness and damping lifting insulation under high-frequency and small-amplitude conditions. Vibration capability, providing greater damping force to cope with large impact loads under low-frequency and large-amplitude conditions.

Description

Technical field [0001] The present invention relates to the technical field of automobiles, and more particularly to a car, power assembly suspension system, and its anti-strap rod. Background technique [0002] In the pendulum vehicle power assembly suspension system, the anti-tolerance rod mainly serves as the vibration transfer and restrictive power assembly displacement of the isolation power assembly to the body or sub-frame. The general design principle shows that in order to effectively pass the vibration power assembly in the vehicle idle, the anti-rod is required to design a lower stiffness in the engine; in the engine ignition, turn off the fire Equal large amplitude and low frequency impact conditions, in order to effectively control the displacement of the power assembly, it is also required to provide large rods and large damping, which has a contradiction in the design. [0003] Traditional anti-rods generally include brackets and two bushes mounted on both ends of ...

AI Technical Summary

Problems solved by technology

The vibration isolation and displacement control of the powertrain are achieved through the rubber in the bushing, and the rubber has low peak damping characteristics, so the traditional anti-torsion tie rods cannot isolate the vibration of the powertrain well and deal with large impact loads. condition

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