About 86 results
https://drivepatents.com/patents/1004140 · 21 Mar 2012
A method of estimating a combustion index (MFB50) and/or the indicated torque (T ind ) in a cylinder (2) of a four stroke internal combustion engine (1); the method of estimating presenting the steps of: determining the angular speed (É i ) of the drive s...
https://drivepatents.com/patents/1008535 · 19 Oct 2011
The present invention relates to a control device for a spark-ignition internal combustion engine provided with a cylinder pressure sensor and aims to facilitate optimal control of a combustion state even in a situation where an operating condition is vari...
https://drivepatents.com/patents/1008699 · 12 Oct 2011
A required nominal-torque heat-release-rate characteristic value that satisfies the required nominal torque, required engine speed and required ignition timing is specified as the maximum value of a heat-release-rate waveform. It is determined whether a li...
https://drivepatents.com/patents/1008686 · 12 Oct 2011
A method of determining whether a given cylinder in an engine system is ready for injection/ignition, the engine system comprising a plurality of cylinders, the method comprising: monitoring the in-cylinder pressure of the given cylinder within the engine ...
https://drivepatents.com/patents/1010087 · 17 Aug 2011
The method involves determining an actual value for energy content and a condition for an individual combustion process within a working cycle separately. The actual value for the content is compared with a set value for content of the respective combustio...
https://drivepatents.com/patents/1010913 · 20 Jul 2011
When a request for re-start of an engine or a request for start occurs during inertial revolution of the engine by fuel cut at the time of request for idle stop, an operation of starting by re-start of fuel injection and an operation of driving the starter...
https://drivepatents.com/patents/1011273 · 6 Jul 2011
A method for correcting an output characteristic of an in-cylinder pressure sensor has a problem of insufficient correction precision because the measurement range required for the detection of a peak in-cylinder pressure and an ignition timing resides in ...
https://drivepatents.com/patents/1012641 · 25 May 2011
The method involves collecting end values from N values indicating combustions for different operating points of a spark ignition internal combustion engine to obtain evolution of coefficients of theoretical distribution law. A parameter characterizing the...
https://drivepatents.com/patents/1012638 · 25 May 2011
The Method involves detecting abnormal combustion in combustion chamber (14) of cylinder (12). Signal representative of combustion state is recorded by detector (46a) and obtaining combustion indicators from signal and then converted to new indicators, and...
https://drivepatents.com/patents/1015135 · 9 Mar 2011
The method involves generating an effective voltage from a vehicle electrical system voltage, where the effective voltage is applied to the glow plug. A set of values of combustion chamber pressure (1) in a cylinder is measured during each working cycle of...