About 15 results
https://drivepatents.com/patents/955696 · 11 Nov 2015
The invention relates to a method for dynamic determination of gas flows in a pipeline system (1), in particular in intake or exhaust lines of internal combustion engines, wherein components (B1, B2, B3, Bi) and pipe sections (R1, R2, R3, Ri) are modeled b...
https://drivepatents.com/patents/970794 · 27 Aug 2014
The problem to be solved by the present invention is to provide a fuel injection controller capable of bringing the fuel injection amount closer to the ideal one. Solving Means We let the throttle opening at P2 be denoted by TH0. Here, P2 is a specific tim...
https://drivepatents.com/patents/978893 · 5 Feb 2014
In the present fault diagnosis method and the fault diagnosis system (10) for an engine (16), an external diagnosis device (14): obtains continuous data on the incidences of misfire by misfiring cylinders from the vehicle's (12) side with regard to the act...
https://drivepatents.com/patents/980751 · 18 Dec 2013
A method for controlling an internal combustion engine (1), comprising a number (W) of cylinders (3) and wherein the air mass trapped inside each cylinder (3) is adjusted by means of a respective intake valve; the control method includes determining the to...
https://drivepatents.com/patents/981593 · 27 Nov 2013
An air-fuel ratio control apparatus for an internal combustion engine of the present invention determines whether or not a lean request has occurred, based on a comparison between a value correlating with an output value of the downstream air-fuel ratio se...
https://drivepatents.com/patents/981541 · 27 Nov 2013
It is proposed a method for detecting a presence of a leak in a fuel system mounted on board of a vehicle. The method is such that it comprises the steps of: a) obtaining (S1,S6) temperatures and pressures in the fuel system at a first time and at a second...
https://drivepatents.com/patents/982266 · 6 Nov 2013
A control device for an internal combustion engine includes a unit for performing precorrection of an intake air quantity immediately after engine startup on the basis of a change value in the intake air quantity immediately after the beginning of cranking...
https://drivepatents.com/patents/982573 · 30 Oct 2013
An object of this invention is to provide a control apparatus for an internal combustion engine that can suppress the emission of unburned HC accompanying start-up of an internal combustion engine. The control apparatus for an internal combustion engine of...
https://drivepatents.com/patents/988701 · 17 Jul 2013
The present invention relates to a control device for an internal combustion engine including a first control subject (35D) capable of controlling two different control amounts (Pim and Regr) influencing each other at a low frequency and second control sub...
https://drivepatents.com/patents/991900 · 10 Apr 2013
Variations in the air-fuel ratio among cylinders are specified as one cause of deterioration in exhaust emissions however the size of the variations in the air-fuel ratio among cylinders detected by the catalyst upstream sensor does not always match the ma...