Designing and manufacturing wireless equipment for reliability inspection of automobile rear axles

Abstract

The powertrain system of automobile consists of clutches, gearboxes, axles and rear
axles. When the moving on the road, the rotating parts consist of the shaft and gear
wheels bear the torsion load and a part of the bending load. Components of the
cover, casing and beams subject to bending loads. To determine the bending loads on
the covers and shells, it is easy to use the sensors and connect them to the measuring
equipment by wires. Specialized tools must be used on parts that are rotating on the
axle, these tools are specially constructed and often have to be cut off in order to
assemble the device. A wireless transceiver application solution is used to fabricate
signals on rotating parts of automotive systems. This article presents the results of
designing and manufacturing wireless transceiver used in the test equipments for
automotive rear axle reliability. The transmitter operates according to the principle
that voltage signals from the tenzo deformation mounted on the rotary axis will be
transferred to the receiver, and processed into electromagnetic waves to be emitted
into space. A receiver installed on a computer will receive the signals and convert
them into digital signals processed by the software. Performing the calibration of
measurement data according to the stress signal and the deformation will result in the
evaluation results of the reliability of the components.