Continental Automotive France

Siemens Aktiengesellschaft

Siemens Vdo Automotive Corporation

Sextant Avionique

Other

Bayerische Motoren Werke Aktiengesellschaft

Frédéric Galtier

Hong Zhang

Olivier Besson

Roger Rouphael

Philippe Avian

Willem Teulings

Willibald Schuerz

Franz Dietl

Jeroen Van-Est

Bertrand Danet

Damien Roussel

Markus Eisenkölbl

Willem Johan Anton Teulings

Bruno Nicolas

Cédric Vedel

Jérome Trescazes

Jeremy Blanc

Holger Rukwid

A method for determining a value representative of the pressure in a combustion chamber of an internal combustion engine, includes the following steps:

Method for determining a value representative of the pressure in a combustion chamber of an internal combustion engine

A method of transmitting information making it possible to monitor the operation of an internal combustion engine, includes the steps of:

Method of transmitting information relating to the operation of an internal combustion engine

Method of detecting a misfire in an internal combustion engine provided with at least two cylinders and a crankshaft, includes:

Method for detecting a misfire and corresponding device

A device () for determining the position of an internal combustion engine, includes an incremental-type sensor () having a rotary part () which is connected to the rotary body, and a fixed part () which is provided with first elements for detecting the rotation of an increment between the mobile part () and the fixed part (), second elements for detecting the direction of rotation between the mobile part () and the fixed part (), and analysis elements which are connected to the first elements and the second elements and are used to determine the angular position of the rotary body in relation to the reference position. The device also includes engine controlling elements () which are connected to the analysis elements () of the sensor (), and the sensor () is permanently electrically () fed in the device.

Device for determining the position of an internal combustion engine

Method for determining the timing of an indirect injection internal combustion engine, in which the following steps are performed:

Method for determining the phasing of an internal combustion engine

According to methods known in prior art, a parameter which depends on the acceleration of the internal combustion engine is determined by means of a monitoring and analyzing system and is compared with a threshold value. According to the inventive method, the spread of said acceleration-dependent parameter is used for adjusting the threshold value to changes in the smoothness of running of the internal combustion engine.

Method for the detection of misfires in an internal combustion engine

The invention relates to a method and device for determining a phase position between a crankshaft and a camshaft of an internal combustion engine. An internal combustion engine is provided with a crankshaft, a camshaft, at least one cylinder and an intake tract to which gas inlet valves are assigned that control the gas supply from the intake tract to the one or more cylinders and that are driven via the camshaft. The intake tract is associated with a pressure sensor that detects an intake tube pressure in a manifold of the intake tract. The phase position is determined depending on the intake tube pressure detected. The inventive method and device allows to determine the phase position in a simple manner and without any additional sensor system.

Method and device for determining a phase position between a crankshaft and a camshaft of an internal combustion engine

The invention relates to a method for determining the energy (KNKE) of the knock of an internal combustion engine, using an analog signal supplied by a sensor fixed to the engine. The inventive method includes the following steps: a) the analog signal is shaped, b) the analog signal is converted into a sequence of digital samples, c) the signal is subjected to digital filtering, and d) the signal is adjusted and e) integrated. According to the method: i) the shaping of the analog signal includes combining the signal with a continuous component (Vcnf) adapted to render the shaped signal a positive signal or a zero signal, and ii) the digital filtering is carried out by a band-pass filter with an infinite impulse response, the transfer function thereof including a zero for the zero frequencies.

Method for determining the energy of a knock signal for an internal combustion engine

According to this method, a) a series of sparks is emitted into an engine cylinder ( ), filled with an air/fuel mixture to be ignited, at predetermined successive instants, b) one of the sparks that initiates the ignition of the mixture is identified, c) the difference separating the instant of emission of the spark from a predetermined ignition instant able to ensure that the engine supplies a predetermined mechanical power is evaluated, and d) the instant of opening of the fuel injector ( ) is corrected as a function of the difference, so as to initiate subsequent ignitions of the air/fuel mixture in the cylinder ( ) at the predetermined instant.

Method and device for adjusting opening time of a fuel injector for mounting a direct injection internal combustion engine

Method for determining a functioning parameter of an engine

An optical velocimeter probe a device to illuminate a volume of measurement in which there may pass particles, and an optical detector to produce an electrical signal x(t) in response to the passage of a particle in the illuminated volume. It also includes a device to extract information representing the velocity v of particles from the electrical signal, including, in particular, a device to convert the electrical signal x(t) into a complex signal .sub.x (t), an apparatus to set up a self-correlation function r.sub.x (m) of the signal x(t), and a device to estimate the velocity v from the computation of the phase .phi..sub.x (m) of the function r.sub.x (m).

Optical velocimeter probe

An optical velocimetrical probe comprises means to illuminate a volume of measurement in which particles may pass, and optical detection means to produce an electrical signal x(t) in response to the passage of a particle in the illuminated volume. It also comprises means to extract information representing the velocity v of particles from the electrical signal, these means comprising,in particular, means to compute the density of probability p(x,.theta.) of the signal vector x(t), means to determine a frequency representing the velocity v for which this probability is the maximum.

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Montpellier, France

Frédéric Galtier