An Encoder-less Motorcycle Shock Absorber Dynamometer Testing Device and Method

Abstract

The invention relates to an encoder-free motorcycle damper dynamometer testing device and method. The encoder-free motorcycle damper dynamometer testing device is composed of a first station force sensor, a second station force sensor, a first station starting switch, a first station counting sensor, a second station starting switch, a second station counting sensor, a filtering circuit, a first signal conditioning circuit, a computer, a PCI1711L plate clamp, a second signal conditioning circuit, a first station frequency changer, a first station motor, a first station pneumatic valve, a station clamping air cylinder, a second station frequency changer, a second station motor, a second station frequency changer and a second station clamping air cylinder. The encoder-free motorcycle damper dynamometer testing method includes the steps of initializing variables, then collecting signals, using power signals output by the frequency changer to drive the motors to operate, collecting signals of the counting sensors, forming a two-dimensional array through force sensor AD values between every two signals of the counting sensors and damper cylinder barrel motion displacement values obtained through calculation, eliminating unnecessary high-dimensional elements, obtaining an element mean effective value, and generating a damper dynamometer curve with the damper cylinder barrel motion displacement as the horizontal coordinate and the damping force as the vertical coordinate.

Description

Technical field: [0001] The invention relates to a motorcycle shock absorber dynamometer test device and method, in particular to a motorcycle shock absorber dynamometer test device and method controlled by a digital computer without an encoder. Background technique: [0002] As a key component of a motorcycle, the shock absorber has many functions such as suppressing vibration, enhancing driving comfort and safety, etc. The indicator performance is an important indicator to measure the performance of a motorcycle shock absorber. Each shock absorber has This test is required. The indicator characteristic refers to the relationship curve between the damping force and the corresponding displacement when the shock absorber reciprocates within the specified stroke range. The traditional test method is to collect the damping force and displacement signals through the force sensor and the encoder to generate the indicator curve, which brings about a problem: the test equipment is...

AI Technical Summary

Problems solved by technology

The traditional test method is to collect the damping force and displacement signals through the force sensor and the encoder to generate the indicator curve, which brings about a problem: the test equipment is always on the production line site, and the encoder is an environmental requirement. Higher devices, used in this harsh environment for a long time, the encoder will reduce the accuracy in light cases, or fail in severe cases, which will have a direct and significant impact on the test results, and even make the test impossible; from the perspective of reliability, the device The more electronic components in the medium, the lower the reliability of the device, so the test accuracy and reliability of the test device are inhibited by the encoder

In addition, the price of the encoder is high, and the maintenance technology content is also high, which also increases the complexity of wiring

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