Abstract
Key words:
data acquisition system, statistical data processing, quality control
Abstract
Customer satisfaction is a key prerequisite for a loyalty to a certain car producer. One of the most important factors that influence customer satisfaction is a car comfort. Electrically adjustable seats are sometimes included into the electric equipment package, which serves to improve the passenger comfort. Although car seats are relatively rarely adjusted, it could be highly disturbing if a stepping is sensed when adjusting the height or tilt of the seat and a seat backrest. This problem is unpleasant, because the electrically adjustable seats are usually built into the more luxury cars, which should offer a high level of comfort to their users. So far the stepping inspection was performed manually. It was done by skilled controllers that assessed a seat quality according to their subjective feeling of the stepping. This approach is problematic, because the repeatability of such an inspection is questionable even for the same controller not to mention that no two human beings have the same senses. To alleviate this problem an objective method for detecting the seat stepping should be found. This means that the human influence should be reduced as much as possible. In the paper we present a process of building the objective computer-aided measurement system for detecting the stepping during the seat adjustment. Different measurement principles that were applied for determining the stepping are compared. We present some arguments that speak in favour of (or against the) each principle and explain why did we choose the solution that was built into the end-of-line quality control unit.