Embodiments relate to systems and methods for sensor self-diagnostics using multiple signal paths. In an embodiment, the sensors are magnetic field sensors, and the systems and/or methods are configured to meet or exceed relevant safety or other industry standards, such as SIL standards. For example, a monolithic integrated circuit sensor system implemented on a single semiconductor ship can include a first sensor device having a first signal path for a first sensor signal on a semiconductor chip; and a second sensor device having a second signal path for a second sensor signal on the semiconductor chip, the second signal path distinct from the first signal path, wherein a comparison of the first signal path signal and the second signal path signal provides a sensor system self-test.

A method is described for calibrating an acquisition chain of a braking device or system of at least one vehicle, in particular at least one railway vehicle, which method includes the steps of: a) measuring a predetermined reference value of a physical quantity by means of a calibration means having a degree of accuracy greater than a predetermined threshold; b) measuring the predetermined reference value of the physical quantity by means of the acquisition chain; c) determining a measurement error therebetween; and d) modifying the at least one coefficient of said transfer function of control means of the acquisition chain, on the basis of the comparison of the value measured by the calibration means with the value measured by the acquisition chain, so that the measurement error of the acquisition chain is minimized or rendered null.

When detecting a maladjusted brake component on a commercial vehicle, wheel end temperature is determined as a function of resistance measured by a wheel speed sensor at a wheel end. The measured temperature is compared to low and high temperature thresholds defined by a thermal model, as well as to one or more other wheel speed sensor temperatures. If the measured temperature is below the low temperature threshold and substantially different than the one or more other wheel speed sensors, the brake is determined to be under-adjusted and brake force at the under-adjusted brake is increased. If the measured temperature is above the high temperature threshold and substantially different than the one or more other wheel speed sensors, then the brake is determined to be over-adjusted, and brake force is reduced or modulated at the over-adjusted brake to prevent overheating.

A method for operating an electronic brake system in a vehicle having at least two tires on an axle, wherein the vehicle has a center of gravity (SP) with a height (hSP), is disclosed. According to the method, the height (hSP) of the center of gravity (SP) is calculated and used as a parameter by the electronic brake system. An electronic control unit, an electronic brake system, and a vehicle including the same for carrying out the method are also disclosed.

A sensor system includes a plurality of sensor elements and a signal processing device. The plurality of sensor elements detect at least in part different primary measurement variables and utilize at least in part different measurement principles. The signal processing device is configured to evaluate the sensor signals of the sensor elements.

A method detects systematic deviations during a determination of a movement variable of a ground-based, more particularly rail-based, vehicle. To optimize the operation of the vehicle, more particularly to minimize operational restrictions during operation of the vehicle, the method proposes thatbased on a measurement value, assigned to a time, of at least one sensor, a value, assigned to the time, of the movement variable is determined andsubject to the value, assigned to the time, of the movement variable and a statistical sensor accuracy value, determined for this value, of the at least one sensor, a test variable value, assigned to the time, is formed and is compared in a comparison with a predefined test bound in order to make an assumption regarding an existence of a systematic deviation. The assumption is subject to a comparison result obtained from the comparison.

A behavior control apparatus for a vehicle, comprising a control unit that controls braking/driving forces of wheels so that the magnitude of a deviation between a steering angle and a steering angle conversion value of a yaw rate decreases when it is determined that the deviation exceeds a threshold value in magnitude and the vehicle is in an understeer state; the vehicle has a steering device including a variable gear ratio type rack bar; and, when the sign of the steering angle is the same as the sign of the offset amount and the zero point offset amount exceeds a reference value in magnitude, the control device corrects at least one of the threshold value and the magnitude of the deviation according to the steering angle and the zero point offset amount so that it becomes difficult to determine that the magnitude of the deviation exceeds the threshold value.

A method and related apparatus for determining an orientation of a sensor unit in a vehicle, the sensor unit having at least one acceleration sensor, including: capturing a first sensor signal from the acceleration sensor in an acceleration-free state of the vehicle; capturing a second sensor signal from the acceleration sensor in response to a linear acceleration of the vehicle; and ascertaining the orientation of the sensor unit relative to the vehicle based on the first sensor signal and the second sensor signal.

When detecting a maladjusted brake component on a commercial vehicle, wheel end temperature is determined as a function of resistance measured by a wheel speed sensor at a wheel end. The measured temperature is compared to low and high temperature thresholds defined by a thermal model, as well as to one or more other wheel speed sensor temperatures. If the measured temperature is below the low temperature threshold and substantially different than the one or more other wheel speed sensors, the brake is determined to be under-adjusted and brake force at the under-adjusted brake is increased. If the measured temperature is above the high temperature threshold and substantially different than the one or more other wheel speed sensors, then the brake is determined to be over-adjusted, and brake force is reduced or modulated at the over-adjusted brake to prevent overheating.

PROBLEM TO BE SOLVED The present invention provides a vehicle motion detecting apparatus that can satisfy a required detection accuracy with a simple architecture and at a low cost, and also maintain reliability of an applied external apparatus. SOLUTION A vehicle motion detecting apparatus 100 of the present invention has a motion detecting section 10 that detects a motion of a vehicle and a malfunction detecting section 20 that detects a malfunction of the motion detecting section 10, and is characterized in that the motion detecting section 10 is a 6-axis inertial sensor as the first multi-axis inertial sensor that is capable of detecting accelerations in directions of three axes and angular velocities about three axes.