Adjustable inertance coefficient type hydraulic inerter

Abstract

The invention discloses an adjustable inertance coefficient type hydraulic inerter. The adjustable inertance coefficient type hydraulic inerter comprises a double-outlet-rod hydraulic cylinder; a hydraulic cylinder cover housing is arranged at the upper end of a hydraulic cylinder body; a piston rod of the hydraulic cylinder is connected with a wheel connecting point; the hydraulic cylinder cover housing is connected with a vehicle body connecting point; two oil inlet and outlet end ports of the hydraulic cylinder are respectively connected to a rectifier circuit; two branches which are connected in parallel are arranged on the rectifier circuit; a first hydraulic one-way valve and a second hydraulic one-way valve which are mounted by a face-to-face manner are connected in series with the first branch; a third hydraulic one-way valve and a fourth hydraulic one-way valve which are mounted by a back-to-back manner are connected in series to the second branch; the medium end of the second branch is connected with an inlet of an one-way variable hydraulic motor; an outlet of the one-way variable hydraulic motor is connected with the medium end of the first branch through a pipeline; a flywheel is connected to the shaft end of the one-way variable hydraulic motor. According to the active adjustable inerter, the parameters can be changed at random according to the vehicle driving and road conditions, so as to adapt to the best driving state of the vehicle.

Description

technical field [0001] The invention relates to an inerter, in particular to a hydraulic inerter with adjustable inertia coefficient. Background technique [0002] The inerter has a function similar to that of a capacitor, that is, it can block the transmission of low-frequency signals. This characteristic makes it of great application value in automobile suspension. The existing inerter structure is an inerter device with a fixed inertia coefficient. This fixed inerter can only be used in the passive suspension of automobiles. It cannot actively change its own inertia coefficient according to road conditions, and does not have good road adaptability. . [0003] The reason for adopting the hydraulic one-way bridge rectification circuit is that the existing hydraulic inerter generally adopts two-way quantitative motor, and the car is generally in a relatively stable driving state. At this time, the force F generated by the hydraulic cylinder and the displacement of the pisto...

AI Technical Summary

Problems solved by technology

The existing inerter structure is an inerter device with a fixed inertia coefficient. This fixed inerter can only be used in the passive suspension of automobiles. It cannot actively change its own inertia coefficient according to road conditions, and does not have good road adaptability.

[0003] The reason for adopting the hydraulic one-way bridge rectification circuit is that the existing hydraulic inerter generally adopts two-way quantitative motor, and the car is generally in a relatively stable driving state. At this time, the force F generated by the hydraulic cylinder and the displacement of the piston are small, while the hydraulic Motors generally have friction torque. When the hydraulic cylinder vibrates back and forth near the balance point, the flow rate of the hydraulic motor will fluctuate slightly, and the motor will be in frequent forward and reverse low-speed rotation, and the motor will produce sticking, crawling, etc. , so that the response of the inerter lags behind, and the ideal inerter effect cannot be achieved

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