Speed Based Hinge and Check Evaluation
All new Friction modules captures the perceived quality of the door during closing.
February 2025, Detroit (USA)
Subjective Study
A recent study was done with the goal to correlate subjective opinion to objective metrics. A variety of cars were observed for subjective perception and measured for the key metrics. While many metrics were considered, the most significant improvement in correlation was achieved by including this additional new feature to the equation. The correlation jumped from an initial 45% up to a 75% match. A significant improvement without the need for any additional tools or special operations.
Background
It is not uncommon that some doors, despite an acceptable closing speed, feel sluggish while travelling over the check. These doors tend to come to a slow stop or end up in a detent position. This type of door, generally referred to as check dominant doors, can score good on speed only evaluations. However, the perceived quality is often poor. The above speed graphs for a few doors illustrate the potential low and high closing speed but also illustrate how doors with identical speed might feel completely different when compared to the initial speed.
