Automotive Applications of MEMS: Overview of New Applications in Europe, Japan and North America and Evaluation of the Markets

Abstract

Since the introduction of the Manifold Air Pressure (MAP) sensor in car in 1979 for engine control, there has been an ever-growing use of microelectromechanical systems (MEMS) in car. Today, a car contains about 50 sensors, not only for engine management but also for passengers safety and comfort as well as environmental care. This article focuses on the increasing part of electronics in cars and presents automotive applications for MEMS. At present, a leading trend is an improvement of safety and comfort in vehicle. The role of MEMS (gyroscopes, pressure sensors) in GPS and HVAC (Heating, Ventilation Air Conditioning) systems is then discussed; as they are both growing markets. The situation in Europe is then compared with North America and Japan, where development of intelligent transport systems is a national priority to reduce road traffic accidents, congestion, and pollution.