About 21 results
https://drivepatents.com/patents/1077498 · 25 May 2005
In an engine including a passage injector (6) and an in-cylinder injector (7) that allocates and injects fuel, a fuel injection controller prevents the fuel injection amount of each injector from falling below an allowable lower limit value (min1, min2). W...
https://drivepatents.com/patents/1078612 · 13 Apr 2005
An air-fuel ratio control system for an internal combustion engine, which is capable of quickly and properly eliminating variation in air-fuel ratio between a plurality of cylinders. The air-fuel ratio control system 1 controls the amount of fuel to be sup...
https://drivepatents.com/patents/1085796 · 7 Jul 2004
A method of reducing resonance phenomena in a transmission train (6) of an internal combustion engine (2) of a vehicle (1); when the rotation speed (N) of at least part of the transmission train (6) is such that the frequency of a disturbance harmonic comp...
https://drivepatents.com/patents/1087089 · 19 May 2004
The method involves a main injection, determining the resulting crankshaft rotary acceleration, determining the main injection quantity from the determined rotary acceleration, post-injection, feeding back at least part of the engine exhaust gas with the p...
https://drivepatents.com/patents/1089824 · 4 Feb 2004
A fuel injection system for an internal combustion engine (1) starting time according to the invention sets an amount of fuel (TAU) injected into each cylinder sequentially in a first cycle of fuel injection during a normal engine start in which an engine ...
https://drivepatents.com/patents/1090346 · 14 Jan 2004
A direct injection process for operating a petrol engine switching between homogeneous and layered modes maintains a temporarily homogeneous torque during switching transitions by operating the cylinder(s) according to their lambda(air/fuel) values.
https://drivepatents.com/patents/1090720 · 2 Jan 2004
During the phase of rising catalyst (26) temperature (PmT), the mixture richness (Er) is adjusted to increase the rate of temperature rise. The fuel mixture is varied from one cylinder (C1-4) to the next. At the same time, the mean richness is held close t...
https://drivepatents.com/patents/1092859 · 8 Oct 2003
A fuel metering control system for an internal combustion engine including a feedback loop having an adaptive controller and an adaptation mechanism that estimates controller parameters ΒΈ. The adaptive controller corrects the quantity of fuel injection to...
https://drivepatents.com/patents/1093735 · 27 Aug 2003
The method involves determining a standard injection (10) from gas pedal position and other parameters, determining cylinder-specific correction values (12) for injection start and end points and/or injection duration per cylinder, determining the correcti...
https://drivepatents.com/patents/1110264 · 12 Sep 2001
An adaption method for controlling the injection of a multi- cylinder internal-combustion (IC) engine, which is operated phase-wise stoichiometric and lean, involves a first stage (a) of continuously controlling the injection for each cylinder in stoichiom...