Continental Automotive Gmbh

Continental Automotive France

Meas France

Te Connectivity Sensors France

David Mirassou

Benjamin Marconato

Vincent Leger

Marie-Nathalie Larue

Yannick Vidal

Emilien Durupt

Alain Gonzalez

Jean Milpied

Yann Dinard

Olivier Marle

Jérôme Burg

Nicolas Bigou

Sylvain Payzal

Leny Teinturier

An optical rain sensor device includes a first light emitting element adapted to emit a first light pulse toward an inner surface of a transparent substrate, a second light emitting element adapted to emit a second light pulse toward the inner surface of the transparent substrate, a photodetector adapted to detect a light from the first light pulse and the second light pulse that is reflected by the inner surface of the transparent substrate, and a rain sensor controller. The rain sensor controller includes a regulated current source adapted to apply a compensation current signal at a terminal of the second light emitting element based on a regulation signal, so that a total current across the second light emitting element is increased or decreased to reduce an imbalance between the first light pulse and the second light pulse.

Real-time, fine adjustment of driver current of a light emitting device of an optical rain sensor

The present invention relates to a radiation sensor, in particular for use with a vehicle sunload sensor arrangement. Furthermore, the present invention also relates to such a vehicle sensor arrangement and to a method of assembling a vehicle sensor arrangement. A radiation sensor comprises at least one first and one second photodetector, and a radiation shaping element, wherein said radiation shaping element comprises radiation blocking means for forming at least one aperture through which the radiation has limited access to said first and second photodetectors, and wherein said first and second photodetectors are arranged on a substrate and are distanced apart from each other along a sensor axis, and wherein the radiation blocking means is formed by a radiation screen mounted on the substrate to encompass the first and second photodetectors.

Radiation sensor comprising a radiation screen for detecting a sun load acting on a vehicle

Disclosed is a camshaft or crankshaft sensor including a toothed target, a measuring cell adapted to supply a raw signal and a processor module having two modes of operation: 1) a measurement mode in which the processor module is adapted to supply an output port of the sensor a measurement signal representing the times of passage of the teeth of the target at the level of the measuring cell; and 2) a diagnostic mode in which the processor module is adapted to supply at the output port of the sensor a diagnostic signal different from the measurement signal and representing the amplitude of the raw signal. Also disclosed is a method and a module for diagnosing such a sensor.

Camshaft or crankshaft sensor for automotive vehicle and diagnostic method for such a sensor

A method for automatically calibrating an engine camshaft sensor, the sensor measuring variations in magnetic field value and delivering an electrical signal having a high state after the passage of the values of the magnetic field above the switching threshold on a rising edge and a low state after the passage of the values of the magnetic field below the switching threshold on a falling edge. After the passage of the values of the magnetic field above the switching threshold and measuring a new maximum value, the electrical signal remains in a high state as long as the magnetic field values are higher than a hysteresis threshold, which is dependent on the amplitude of the magnetic field calculated with the measured new maximum value; after the passage of the values of the magnetic field below the hysteresis threshold, a new switching threshold is calculated according to the new maximum value.

Method for automatically calibrating a camshaft sensor for a motor vehicle engine and associated sensor

A method for testing a detection sensor positioned facing a target fixed to a drive shaft that is intended to be installed in a motor vehicle. The method includes generating a pulsed voltage test signal, amplifying the high states of the generated test signal, filtering the amplified test signal so as to obtain a voltage test signal having high states the voltage of which is higher than a predetermined high-state detection threshold and low states the voltage of which is lower than a predetermined low-state detection threshold, and detecting the high states and the low states of the filtered test signal in order to test the sensor.

Method and device for testing a detection sensor for a motor vehicle

A method for automatic calibration of a camshaft sensor for a motor vehicle, allowing reduction of the fluctuations on the output signal of the sensor. The method proposes comparing, on each target rotation, the new maximum values of the magnetic field of each tooth to the maximum values of the same teeth from the preceding target rotation. The switching thresholds are only calculated with the new maximum values if these differ from the maximum values of the preceding target rotation. Moreover, the invention proposes using a single minimum value of the magnetic field, i.e. the absolute minimum value on a target rotation in order to calculate the switching thresholds.

Method for automatic calibration of a camshaft sensor for a motor vehicle

Disclosed is a method for adapting a detection threshold (S) of a magnetic field sensor for a crankshaft of a motor vehicle equipped with the 'stop & go' function, the sensor delivering a signal (B) of variations of magnetic field having two states, such as: State: when the crankshaft is rotating: the signal includes rising fronts and falling fronts, State: when the crankshaft is stopped: the signal has an aperiodic progressive drift (&#x394;T). The method includes for statesteps making it possible to estimate the variation (&#x394;, &#x394;, &#x394;, &#x394;. . . &#x394;) of the value (V, V. . . V) of the signal (B) during the stopped phase of the crankshaft in order to adapt the detection threshold (S) to a new value (S) applicable for the detection of the first tooth upon restart of the engine (R).

Method for adapting a detection threshold of a crankshaft sensor for motor vehicle

The subject of the present invention is a method for communicating a malfunction of a system for measuring speed and direction of rotation of a rotary shaft, said system comprising: According to the invention, the method comprises the following steps:

Method for communicating a malfunction of a system for measuring speed and direction of rotation of a rotary shaft

A measurement amplifying circuit () for a piezo-electric sensor () positioned in an internal combustion engine supplying a signal to be measured, includes: a module () for generating a common mode voltage; a differential amplifier (); and a subtraction module (). The module () for generating a common mode voltage is to be connected to a wall () of the engine, the module () for generating a common mode voltage being suitable for supplying a common mode voltage signal (Vcm) reproducing the variations of an engine signal (Sb) received from the wall () of the engine.

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Toulouse, France

David Mirassou