E-drive end-of-line testing
HBK - Hottinger Brüel & Kjær

HBK will showcase Discom, which uses high-precision acoustic measurement methods to locate production-related errors, demonstrating quality assurance on all levels.

Drives in electric cars pose special challenges for end-of-line testing systems. In the case of quiet electric cars with e-drives, possible production inaccuracies in electric motors and their power transmissions can cause significant disturbing noise. To avoid this, the individual components and their correlation must be analyzed. The background noise can be transferred to the interior acoustics and perceived as significant static noise.

Due to the seamless integration of hardware and software, Discom acoustic testing can analyze the causes of errors in production and provide high-precision quality control. Errors are pinpointed exactly, down to the smallest gear wheel. Thanks to the ‘“early warning system’, these errors will no longer continue into series production. The use of acoustic measurement technology thus increases production efficiency and manufacturing quality in the direction of zero errors.

As a technology leader, Discom monitors safety with high-precision measurement methods in the production of modules including e-drives and EDUs (electronic drive units), electric motors, and transmissions and MGUs (motor gear units).

The acoustic measurement method unravels noises, making them ‘visible’ with the aid of software and precisely pinpointing the source of error. Discom measures all operating states (ramping up rotational speed, braking, etc), analyzes the background noises and compares the measurement results with a large number of parameters from its extensive database and self-learning algorithms. Automated operation of the measurement sequences keeps the use of personnel low.

For more information, speak to the team on-site in Chennai.

Booth 2066

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