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WO/1999/047388A1 |
According to the invention the accident detector (1) of the occupant protection system carries out an internal error control and, in the case of error detection, generates a permanent status signal which is sent to a control device (4). ...
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WO/1999/046604A1 |
The invention concerns a method and a device for producing a running condition signal representing a vehicle running conditions, which consists in forming an acceleration value of the wheel representing the vehicle wheels acceleration an...
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WO/1999/042843A1 |
A small, lightweight and low-cost semiconductor acceleration sensor easy to manufacture, whose operation is stabilized in a certain period of time after it is turned on. The semiconductor acceleration sensor comprises a middle substrate ...
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WO/1999/042341A1 |
The present invention relates to a method and a device which are used for actuating a retaining system and for preventing in a most simple manner any unwanted actuation thereof. This invention uses an acceleration-sensor arrangement (1) ...
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WO/1999/032330A1 |
The invention relates to a method and a device for monitoring the operativeness of a crash sensor of a safety device for protecting the occupants of a vehicle. According to the invention, the operativeness of said sensor (SE) is tested c...
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WO/1999/031455A1 |
A separation system (20) for separating a first section (48) from a second section (52) is disclosed. In one embodiment, the separation system includes first and second doublers (26, 30) for initially interconnecting the first and second...
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WO/1999/026043A1 |
The invention relates to a navigation system with a position sensing device (20), comprising at least one sensor providing a sinusoidal or rectangular signal according to the distance travelled, a detector (22), a retention buffer (23), ...
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WO/1999/013345A1 |
The invention relates to a device for determining a measurement variable, especially a quantity of movement, which at the output signals a malfunctioning with a fixed voltage level at the output. The device comprises a self-test device w...
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WO/1999/012043A1 |
The method uses a vehicle (1), having a sender pulse generating device (2) fitted to its gearbox (3), at the start of a track 4 of known length. The track (4) has a starting marker (5) and a finishing marker (6), e.g. V-blocks at spaced ...
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WO/1999/010747A1 |
The invention relates to a method for determining exact velocity of a rotating component, especially the velocity of a motor vehicle wheel, in which existing inconsistencies are scanned along the circumference of the rotating component a...
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WO/1999/001774A1 |
According to the invention a transmitter element (2) can be moved past an induction sensor (1) and a digital output signal (Vout) can be generated by means of an electronic evaluation circuit (3). Between the connecting lines (10, 11) of...
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WO/1999/001771A1 |
An acceleration sensor with a diaphragm sensor chip (6) which includes a plurality of lead frames (3). One of the lead frames (3) has a die pad (4). The sensor chip (6) is elastically bonded with an adhesive (10) onto the die pad (4). Th...
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WO/1999/001718A1 |
The invention relates to a device used to monitor sensors, mounted in a vehicle, which produce signals representing different physical quantities. The device comprises first elements, with which identically defined comparison quantities ...
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WO/1999/001719A1 |
The invention relates to a device used to monitor sensors, mounted in a vehicle, which produce signals that represent different physical quantities. The device comprises first elements with which identically defined comparison quantities...
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WO/1998/057196A1 |
This invention concerns improvements to gravity gradient instruments (GGI) and in particular to the accelerometers that are paired within these instruments. Accelerometers (1) have a proof mass (2) suspended by a spring (3) within a magn...
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WO/1998/053329A1 |
The invention relates to a method for compensating inaccuracies in a wheel speed sensor, wherein signal-forming elements are arranged on a sensor wheel to determine wheel speed and wherein a determined angle is allocated to a given numbe...
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WO/1998/041834A1 |
A remote seal differential pressure transmitter, when installed with its remote seal separated by a vertical distance, has an accurate output signal which is compensated for all temperature effects, including compensation of the sensors'...
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WO/1998/029749A1 |
This invention relates to a cantilever beam microaccelerometer symmetrically bonded proof-mass comprised of a lower portion having a cantilever (2), a lower proof-mass (1b) and a support (9) which are integrally formed on one side of the...
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WO/1998/019171A1 |
A vehicle crash sensing system for making omnidirectional acceleration measurements comprises 1) an assembly (26) of at least three preferably self-testable accelerometers (10, 12, 14) mounted in an array on a substantially common plane ...
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WO/1998/011444A1 |
The invention concerns a method of checking the operability of electrical components in a motor vehicle, conclusions being drawn about the operability of the electrical component from the resistance value measured between the terminals o...
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WO/1998/010297A1 |
The inventive device (202) is used to monitor sensors (310, 302,...., 30n) placed in a vehicle (101) and producing signals (Simess) representing differing physical variables. The device contains means (307) by which comparative variables...
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WO/1998/009174A1 |
An acceleration limit sensor presenting a support device (14; 36), a seismic mass (10; 32) and a connecting device (12; 34) with which the seismic mass (10; 32) is mounted on the support device (14; 36). The connecting device (12; 34) pr...
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WO/1997/049999A1 |
An impact recognition device has at least one micromechanically formed acceleration switch (11) with a contact piece (111), which is movable in dependence on acceleration, and with a counter-contact piece (112). For impact recognition pu...
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WO/1997/049998A1 |
An accelerometer having a substrate with a cavity therein, a heater wire extending over the cavity, a pair of temperature sensor wires extending over said cavity equidistant from said heater, and means for passing electrical current thro...
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WO/1997/043651A1 |
A countermeasure detecting circuit (62), and associated method, for a laser speed detector (32). Countermeasures taken at a moving target, such as a vehicle, to interfere with operation of the laser speed detector (62) are detected. When...
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WO/1997/039929A1 |
This invention concerns a device for the recognition of electromagnetic interference of inductive sensors with which altogether three independent tests are carried out. The first thing checked is whether the basic condition is present, i...
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WO/1997/037241A1 |
In order to make corrections on a vehicle speed, the indication of which gets out of order due to a pitching action of a vehicle body, with a high accuracy and at a low cost, a vehicle speed value obtained by a Doppler sensor is correcte...
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WO/1997/034152A1 |
An apparatus for computing correction factors for correcting the output from a rotational frequency mechanism which is adapted to detect the rotational frequency of a tire fixed to a vehicle, and a slip percentage calculating apparatus a...
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WO/1997/031271A1 |
The invention concerns a device for precisely positioning a measuring probe along a probe axis (A) and in a circular manner relative to this axis. The device has a compact structure owing to the coaxial arrangement of the adjusting units...
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WO/1997/031270A1 |
The device is designed to position a measuring sensor, especially a sensor head at an angle to the sensor shaft, precisely at the point of measurement and in the direction of a fluid flowing in a test tube, in which there is an adjuster ...
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WO/1997/030356A1 |
A semiconductor sensor device measures a force being exerted thereon as a result of an acceleration of the semiconductor sensor device along a sensitive axis. The semiconductor sensor device comprises a flexure member having an outer pla...
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WO/1997/027488A1 |
Transient changes in or interruptions of the sensor output signal (u(t)) are measured and evaluated for error in order to monitor a rotational-speed sensor (G, A) which consists of a measuring sensor (G) in the form of a toothed disk or ...
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WO/1997/027487A1 |
A circuit arrangement is disclosed which permits connection of an active sensor (1) in the form of a binary current source to an electronic evaluation circuit (3) designed for use with a passive sensor. The electronic evaluation circuit ...
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WO/1997/027091A1 |
According to the invention, in order to measure the signal of a yaw rate sensor and/or transverse accelerometer, the rotational speeds of a selected wheel pair are used for calculating the yaw angle speed and/or transverse acceleration o...
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WO/1997/024577A2 |
The improved vehicle navigation system and method uses information from a Global Positioning System (GPS) to obtain velocity vectors, which include speed and heading components, for "dead reckoning" the vehicle position from a previous p...
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WO/1997/022008A1 |
A rotation-stop sensor which detects the stoppage of the rotation of a rotating body with optical sensors. The rotation-stop sensor is provided with a plurality of optical sensors (23A and 23B) and a disk (22) having light guiding parts ...
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WO/1997/020195A2 |
A misfire detection process based on the crankshaft speed of rotation is disclosed. An unsteady running value is derived from measured cylinder segment times and subsequent correction of mechanical teeth defects. By a cylinder-selective ...
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WO/1997/014044A1 |
A counting device having an excellent fail-safe function. According to a first invention, a counter (1) counts pulse signals (P1) to be counted and then counts the cycles of a high-frequency signal (P2). When the frequency of the high-fr...
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WO/1997/010512A1 |
A sensor capable of confirming the stop of revolution of a motor inclusive of rotation due to inertia. Signal input lines (A, B, C) are connected to three power feed lines (u, v, w) of an A.C. three-phase motor. A high frequency signal c...
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WO/1997/002972A1 |
For acquiring and evaluating measured variables which are critical for safety, e.g. yaw rates (GR), as input variables of a motor vehicle control system, the measured variables are obtained by means of two mutually independent measuring ...
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WO/1997/000451A1 |
An accelerometer comprising a seismic mass (1) capable of being acted upon by a force induced by an acceleration to be measured. The seismic mass (1) is connected to a support (2) by a mechanical linkage (3) that can be bent by said forc...
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WO/1996/038712A1 |
An angular velocity sensor having a fault diagnosing function. The angular velocity sensor is provided with a driving means which stably drives the driving section of a sensor element equipped with the driving section and a detecting sec...
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WO/1996/037765A1 |
An automatic and integrated mechanical and electrical accelerometer test system (10) includes a test fixture (12) for holding the accelerometers to be mechanically and electrically tested. A handler subsystem (16) automatically feeds the...
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WO/1996/032302A1 |
The triggering signal (AS) to actuate a personal protection system (1) depends upon an acceleration-dependent releasing signal (FS) and the response of an acceleration-dependently operating switch in a protective device (6) (safing senso...
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WO/1996/018908A1 |
A process is disclosed for recognising the malfunction of a sensor of speed of rotation, for example the sensor for the speed of rotation of the wheels in ABS systems. Wheel speeds are derived from signals supplied by the sensor of the s...
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WO/1996/010752A1 |
In so-called active sensors that transmit to an electronic regulator (7) an output signal (IS) whose amplitude does not depend from the speed of the encoder nor from the distance between sensor (6) and encoder (5), determining whether th...
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WO/1996/010750A1 |
A device for confirming the stop of a motor, particularly a rotation sensor for extracting the rotation signals of the motor. In the first invention, a high-frequency current signal is supplied to the winding of a tachometer generator in...
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WO/1996/010751A1 |
In state-of-the-art active motion sensors, in particular speed of rotation sensors, a signal having always the same amplitude is supplied to an electronic regulator and information about the speed of an encoder lies within the frequency ...
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WO/1996/009193A1 |
An air bag system having capacitive coupling passenger position sensors (12), connected to a microprocessor (16) which triangulates passenger position and motion, and which receives signals from a 3-axis electronic compass for vehicle an...
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WO/1996/004158A1 |
A process is disclosed for determining correction factors that detect and compensate for different tire tread circumferences. A short-term correction factor (KZRn) and a long-term correction factor (LZRn) are formed for each wheel, the d...
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