US 6,981,492 B2
Method for determining an exhaust gas recirculation amount
Christian Barba, Fellbach (Germany); and Benjamin Müller, Denkendorf (Germany)
Assigned to DaimlerChrysler AG, Stuttgart (Germany)
Filed on Sep. 24, 2004, as Appl. No. 10/949,988.
Claims priority of application No. 103 44 709 (DE), filed on Sep. 26, 2003.
Prior Publication US 2005/0066947 A1, Mar. 31, 2005
Int. Cl. F02B 47/08 (2006.01)
U.S. Cl. 123—568.15 5 Claims
OG exemplary drawing
 
1. A method for determining an exhaust gas recirculation amount for an internal combustion engine, having a cylinder (3) with an intake duct (1) and an exhaust duct (2), comprising the steps of: determining an outer exhaust gas recirculation amount from an exhaust gas temperature (T3), a fresh gas amount (m2) and an inner exhaust gas recirculation amount (mRi, mRiO), said inner exhaust gas recirculation amount (mRi, mRiO) taking into account the combustion gas amount (mRio7) which remains in the cylinder (3) of the internal combustion engine during a charge change.