Abstract
Behr uses EGR coolers in its Exhaust Heat Management System (EHMS) to obtain exhaust enthalpy, helping to heat up the vehicle cabin faster, or to reduce the power train warm-up phase. In today’s DI diesel and DI gasoline engines, auxiliary heating is essential to ensure thermal comfort, since fuel-efficient vehicles no longer transmit sufficient heat to the coolant. By modifying the internal engine combustion, which produces much higher exhaust temperatures, auxiliary heating by the exhaust heat can provide extremely high thermal output in conjunction with just a slight increase in fuel consumption.
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