A Multi-stage Dynamic Continuously Adjustable Variable Moment of Inertia Hydraulic Retarder Test Bench

Abstract

The invention discloses a multi-stage dynamic continuously adjustable variable inertia hydraulic retarder test bench, which includes a main motor, a main shaft, a speed regulating assembly, an electronic control unit, a clutch and more than two inertia disk groups; more than two The inertia disc group is installed on the main shaft at a certain interval, and the main shaft is driven by the main motor; the speed regulating component adjusts the speed of the inertia disc group to be consistent with the spindle speed; the number of the speed regulating component and the number of clutches are consistent with the number of the inertia disc group; the electronic control unit According to the given working conditions, the inertia disc group is increased or decreased by controlling the coupling or disengagement of the clutch, thereby simulating the braking performance of the hydraulic retarder. The invention can simulate the braking efficiency of the hydraulic retarder under the condition of continuously changing slopes or continuous shifting conditions.

Description

technical field [0001] The invention relates to the technical field of hydraulic retarder braking effect detection equipment, in particular to a multi-stage dynamic and continuously adjustable variable inertia hydraulic retarder test bench. Background technique [0002] The traditional inertial benches disclosed in the prior art are driven by the power source to drive the inertia disk with fixed moment of inertia to drive the hydraulic retarder. The inertia disk stores energy to load the hydraulic retarder, and at the same time simulates the inertia of the vehicle to perform A test of the braking effect of a hydraulic retarder under a fixed vehicle inertia. If you want to simulate the driving condition of the vehicle on a changing slope or simulate the braking performance of the hydraulic retarder in the shifting condition, you must stop the test bench and increase or decrease the number of inertial discs to change the system moment of inertia. It is extremely difficult to ...

AI Technical Summary

Problems solved by technology

If you want to simulate the driving condition of the vehicle on a changing slope or simulate the braking performance of the hydraulic retarder in the shifting condition, you must stop the test bench and increase or decrease the number of inertial discs to change the system moment of inertia. It is extremely difficult to disassemble multiple times. Due to the installation accuracy during the disassembly process, the inertia disk installed later may cause a small rotation relative to the system as a whole when the test bench rotates at high speed, resulting in uncontrollable additional The moment of inertia affects the accuracy of the test, and the repeated disassembly and assembly of the inertia disk seriously affects the efficiency of the test bench

And this kind of inertial bench cannot simulate the continuous changing ramp conditions and continuous shifting conditions of the actual complex road surface of the whole vehicle, so it is impossible to know from the experiment that the hydraulic retarder is in the continuous changing conditions of ramps or gears. braking performance under

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