Patent ID: 6234140
Filing Date: 2001-05-22
Classification: F02D,Y02T

Abstract:
A method for operating an internal combustion engine including an engine of a motor vehicle, the method comprising the steps of:detecting the rpm (n.sub.motor) of said engine;computing a desired torque (M.sub.des) which is to be outputted by the engine;determining a fuel mass (m.sub.K) in dependence upon said desired torque (M.sub.des) which fuel mass (m.sub.K) is to be injected into the combustion chamber of said engine in both a first mode of operation during a compression phase and a second mode of operation during an induction phase;determining an injection duration (t.sub.i) from said fuel mass (m.sub.K);determining an injection angle (.alpha..sub.i) from said injection duration (t.sub.i) in dependence upon said rpm (n.sub.motor) of said engine; and,injecting said fuel mass (m.sub.K) directly into said combustion chamber during said injection angle (.alpha..sub.i) in either said first mode of operation during a compression phase or in said second mode of operation during an induction phase.