| 摘要 |
#CMT# #/CMT# The method involves estimating a theoretical fuel quantity (Q-Inj-Th) to be injected using a calculation model based on a predetermined chemical composition of determined fuel. An engine control parameter is determined by correcting an optimal reference value (P-Ref-Opt) of the parameter for reference fuel using estimated theoretical fuel quantity and parameters. The parameters include specific ratios (K1, K2) and weighting coefficients (C1, C2) that are determined by preliminary validation of the chemical composition model on a set of predetermined fuels. #CMT#USE : #/CMT# Method for determining an engine control parameter such as fuel quantity, during starting of an internal combustion engine e.g. spark ignition engine, of a motor vehicle. #CMT#ADVANTAGE : #/CMT# The method optimizes the determination of injected fuel and engine control parameters during starting, thus reducing pollutant emissions of a vehicle, and hence reducing precious metal loads of catalytic post-treatment. The fabrication cost of the vehicle is therefore reduced. The method improves the vehicle starting quality and robustness. #CMT#DESCRIPTION OF DRAWINGS : #/CMT# The drawing shows a flow diagram of an engine control parameter determining method.'(Drawing includes non-English language text)' C1, C2 : Weighting coefficients k1, K2 : Ratios P-Opt : Real control parameter P-Ref-Opt : Optimal reference value Q-lnj : Fuel quantity Q-Inj-Th : Theoretical fuel quantity. |
