Case study demonstrates how a digital dashboard improves warranty analysis and reduces failure rates in driveshafts, indicating enhanced quality management.
In the automotive industry, reducing warranty claims is essential for maintaining customer satisfaction and minimizing costs. This study presents a digital dashboard designed to streamline reliability analysis and facilitate quality improvement, specifically focusing on managing noise and vibration issues in front-wheel driveshaft joints. The dashboard enables real-time warranty data analysis, allowing quality engineers to identify high-risk components, perform root cause analyzes, and implement corrective measures efficiently. A case study involving a large RV model demonstrates the practical impact of the dashboard: Driveshaft claims were identified as a significant cost factor and ranked eighth in warranty costs within the chassis system. Analysis revealed that noise and vibration account for 87% of driveshaft failures, primarily during U-turns, prompting targeted improvement measures. The utility of the dashboard is highlighted by its support for accelerated life testing, where reinforced joint specifications significantly reduced failure rates. The post-improvement analysis indicated that the probability of failure within the warranty period decreased to 0.017%, meeting the target reliability level, with an estimated 98% reduction in warranty claims. This study contributes a user-friendly dashboard that integrates key reliability functions onto a single screen.
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Yun et al. (2025) studied this question.
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