Electronic control of diesel engines for passenger cars and commercial vehicles is a critical function in today"s automotive industry. All functions in a modern diesel engine are controlled by an electronic control unit (ECU) that communicates with an elaborate array of sensors placed at strategic locations throughout the engine to monitor everything from engine speed to coolant and oil temperatures to piston position. Efficient electronic control means that fuel burns more thoroughly, delivers more power, provides greater fuel economy, and generates fewer emissions than yesterday"s diesel engines. Modern direct-injection diesel engines produce low amounts of carbon dioxide, carbon monoxide, unburned hydrocarbons, reactive nitrogen compounds (NOx), and particulate matter (PM). VISHAY's broad product line provides component solutions for power supplies (SMPS), input signal conditioning, fuel injector drivers, relay drivers, solenoid drivers, and vehicle communications.