Behr Gmbh is a German supplier that specializes in cooling and heating/ventilation/air conditioning systems. At the SAE World Congress this week in Detroit they are introducing three new components that are intended to reduce diesel
emissions and improve driver comfort. They have developed a positive temperature coefficient heater that starts pumping warm air into the vehicle cabin as soon as the engine is started so that a driver doesn't have to start the vehicle and leave it idling to warm up. Similarly a no-idle air conditioning system targeted at the truck market allows drivers to keep the temperature in the vehicle comfortable without running the engine. Finally cooling systems for exhaust gas recirculation help to reduce NOx production on diesel engines.
[Source: Automotive News - Sub. req'd]