Abstract: An adjustable damping system (26) for an automotive vehicle (12) having a damper (10) and sensors (28, 30, 32) for determining the movement of the automotive vehicle (12) and generating a signal representing the movement of the automotive vehicle (12). The adjustable damping system (26) further includes a damper control logic unit 40 for automatically adjusting the damping characteristics of the damper (10) in response to the signal. The adjustable damping system (26) further includes a signal compensation unit (42) which is able to improve the accuracy with which signals representing the movement of the automotive vehicle (12) are determined.

Abstract: An electronic controller for a predetermined temperature coefficient heater provides solid state control of the application of power to the heater. In particular, a positive temperature coefficient glow plug wherein the heater is plated on a ceramic substrate glow plug is controlled by contactless solid state controller. The temperature of the glow plug is sampled by a clock signal and compared with a predetermined temperature value. Pulsed power is supplied to elevate and maintain the temperature of the heater to the predetermined value. In a complete motor vehicle engine wherein one glow plug is used in each cylinder, one glow plug is sampled and controls the remainder of the plugs.