Control arm assembly bench test system for Mcpherson suspension of passenger vehicle

Abstract

The invention relates to a control arm assembly bench test system for Mcpherson suspension of a passenger vehicle. The control arm ball stud end of the system is connected with a loading seat, the loading seat and a guiding rod are connected through a hinge, the axis of the guiding rod is perpendicular to the plane where the center point of a ball stud and the axis of a lining, the vertical displacement of the control arm ball stud is limited, a torsional seat which is coaxial with the rotating axis of the control arm assembly lining end is loaded through a linear actuator, vertical jumping ofthe control arm assembly ball stud end of the real vehicle is converted into torsion of the lining end, and meanwhile influences of the vertical load on the lateral load and the longitudinal load arereduced; and in lateral and longitudinal loading mechanisms, a lateral loading linear actuator and a loading seat are connected through a ball hinge, a longitudinal loading linear actuator and the loading seat are in rigid connection, and mutual influences of the transverse load and the longitudinal load are reduced. Mechanical uncoupling is achieved, the load spectrum iteration accuracy can be improved, and the bench test accuracy is improved.

Description

technical field [0001] The invention belongs to the technical field of bench tests for auto parts, and relates to a bench test system for a control arm assembly for a McPherson suspension of a passenger car. Background technique [0002] The control arm assembly for MacPherson independent suspension is a key component in the car, and it is the guiding and force-transmitting element of the suspension system, which transmits various forces acting on the wheels to the body, and at the same time ensures that the wheels move according to a certain trajectory . [0003] At present, there are mainly two ways to test the bench of the control arm assembly, one is to conduct a separate test bench test for the control arm bushing assembly, ball stud assembly, and control arm structural parts; two, in 12 or 24 channels The control arm is evaluated in the road simulation test. The first assessment scheme is mainly based on single-piece tests, especially for rubber bushings, which are n...

AI Technical Summary

Problems solved by technology

The first assessment scheme is mainly based on single-piece tests, especially for rubber bushings, which are not comprehensive, and it is difficult to make the failure mode of the bench consistent with the actual failure mode

The test cost of the second option is high. If you need to verify the control arm assembly, you need other suspension components to accompany the test. The cost is high and the cycle is long.

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