Electric Drive System End-of-Line Quality Test - Abnormal Parts

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Test Object:NEV Electric Drive Systems

Application Scenario:End-of-Line Quality Test

Challenges:

●The test vehicle was functioning abnormally, which "acceleration beyond a certain speed range would result in a rapidly intensifying noise that tapers off just as rapidly".

●The traditional method of testing at a few fixed RPMs could easily lead to the missed detection of these abnormal parts.

Method of Evaluation:

SigMA supports real-time data acquisition and analysis under dynamic conditions (Figure 1). The above abnormal parts can be easily identified using Order Tracking (see order cut in Figure 2).

Figure 1: EOL quality test is being conducted on the electric drive system using SigMA