Rapid growth of electronic controls in the automotive application field has increased the need for position sensors with longer life and higher accuracy. Non-contact (optic and magnetic) type position sensors offer advantages in durability, but lack in required output accuracy. Contact type position sensors are able to offer high output accuracy in initial condition and advantages such as more temperature stability, higher resolution, and EMI resistance at lower cost. However, their performance degrades over life which is attributed primarily to abrasion between the resistive element and the contact brush. This problem has been solved by developing an improved resistive element made from material with excellent durability against brush contact abrasion. Also better output accuracy was required for position sensor types serving in the engines electronic throttle control. In order to cope with the electronic control current a new resistive element called KCP (Komatsu conductive plastics), compatible with durability and high (micro-gradient) output accuracy, has been employed successfully. This paper reports in detail about the quality engineering, materials and processes optimisation, and enhanced reliability in the new development of KCP.


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    Title :

    High-performance, flat surface resistive element (KCP), and its application in automotive sensors


    Additional title:

    Flaches Hochleistungswiderstandselement (KCP) und seine Verwendung in Fahrzeug-Sensoren


    Contributors:
    Komatsu, H. (author)


    Publication date :

    2002


    Size :

    10 Seiten, 23 Bilder, 3 Tabellen, 5 Quellen




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English






    2002-01-1072. High-Performance, Flat Surface Resistive Element (KCP), and its Application in Automotive Sensors

    Komatsu, H. / Society of Automotive Engineers | British Library Conference Proceedings | 2002


    High Performance Resistive Position Sensors

    Riley, Richard E. | SAE Technical Papers | 1989


    High performance resistive position sensors

    Riley,R.E. / Spectrol Electronics,US | Automotive engineering | 1989