About 26 results
https://drivepatents.com/patents/949831 · 22 Jul 2015
A differential capacitive pressure sensor of an embodiment of the present invention has first and second diaphragms positioned on opposing sides of a single substrate. Each diaphragm of the pressure transducer is configured to be exposed to a transient flu...
https://drivepatents.com/patents/962070 · 1 Apr 2015
Method for determining the EGR rate (ΔEGR) in an engine (M) of an assembly (1) comprising: - said engine, being a heat engine (M) having an inlet connected to an intake circuit (3) and an outlet connected to an exhaust circuit (4) and, - a recirculation l...
https://drivepatents.com/patents/963459 · 28 Jan 2015
Method for determining the concentration of recirculated exhaust gases at the inlet of the intake manifold (10) of a heat engine (M) via a recirculation loop (20) whose outlet (23) opens into the intake circuit (3) of the heat engine (M), method in which s...
https://drivepatents.com/patents/966380 · 10 Dec 2014
System for determining the mass fraction of fresh gas in the intake manifold of an internal combustion engine of a motor vehicle, equipped with a turbocharger and at least one partial exhaust gas recirculation circuit at low pressure connected between the ...
https://drivepatents.com/patents/974756 · 21 May 2014
An absolute value of a deviation of an actual EGR ratio, calculated in a current operational status of an engine 1, from a target EGR ratio set on the basis of current operational status of the engine 1 is acquired and is multiplied by a quotient, as gain,...
https://drivepatents.com/patents/975148 · 7 May 2014
System for controlling an EGR valve of an internal combustion engine based on a flow model (1), the flow model (1) estimating an EGR flow rate (dmEGR_Est) outgoing from the EGR valve to control an opening/closing of said EGR valve, on the basis of operatin...
https://drivepatents.com/patents/985056 · 17 Apr 2013
The method involves performing a measurement relative to flow rate of gas, fresh air or burnt gas, in upstream of a mixing space in which the air and the burnt gas are mixed. Burnt gas mass fraction (BGRbp) present in the space is estimated from the measur...
https://drivepatents.com/patents/992674 · 27 Feb 2013
An object of the present invention is to more preferably detect the abnormal situation of an EGR system of an internal combustion engine provided with a high pressure EGR apparatus and a low pressure EGR apparatus. In the present invention, the flow rate r...
https://drivepatents.com/patents/1000490 · 11 Jul 2012
An object is to improve the control accuracy of the EGR control to be performed on the basis of the volumetric efficiency and the density of the gas sucked into a cylinder. An EGR control system for an internal combustion engine comprises an EGR apparatus ...
https://drivepatents.com/patents/1002734 · 2 May 2012
The method involves detecting a mass flow through a combustion engine system (1), and sensing an ambient pressure at a fresh air supply (8) of the combustion engine system. The pressure at the outlet of the exhaust system (6) is determined corresponding to...