A system for detecting a water-leaking part of a vehicle comprises; a sound wave generator disposed in a vehicle; a plurality of acoustic sensors disposed outside the vehicle and receiving a sound wave generated by the sound wave generator; a time-reversed signal generator configured to time-reverse sound wave signals received by the acoustic sensors and to transmit the time-reversed sound wave signals to the vehicle; and a controller configured to determine whether the vehicle has the water-leaking part based on the sound wave signals received by the acoustic sensors and the time-reversed sound wave signals generated by the time-reversed sound wave signal generator.

A system for detecting a water-leaking part of a vehicle comprises; a sound wave generator disposed in a vehicle; a plurality of acoustic sensors disposed outside the vehicle and receiving a sound wave generated by the sound wave generator; a time-reversed signal generator configured to time-reverse sound wave signals received by the acoustic sensors and to transmit the time-reversed sound wave signals to the vehicle; and a controller configured to determine whether the vehicle has the water-leaking part based on the sound wave signals received by the acoustic sensors and the time-reversed sound wave signals generated by the time-reversed sound wave signal generator.

To generate a repair code when repairing a damaged vehicle, impact characteristics are received for the damaged vehicle and damaged vehicle parts are identified based on the impact characteristics. An extent of the damage is identified for each vehicle part and a repair code is assigned to the vehicle part based on the type of vehicle part, the type of vehicle, the extent of the damage to the vehicle part, etc. The repair code may be from a set of repair codes, where each repair code is generated for a particular type of vehicle part, type of vehicle, extent of damage to the vehicle part, etc., and each repair code corresponds to a cost estimate for repairing or replacing the damaged vehicle part. Each of the repair codes assigned to the damaged vehicle parts are provided to a treatment facility for treating the damaged vehicle.

This invention improves the precision and reliability with which rolling resistance can be measured. This rolling-resistance testing method includes a rolling-resistance measurement stage and a determination stage. In the rolling-resistance measurement stage, a component force meter is used to measure the tangential axial force that occurs in a tire axle when the tire is rotated under load. In the determination stage, the axial force is measured in a no-load stopped state in which the tire has been separated from a drum, said axial force is compared to a threshold, and if the axial force is greater than said threshold, a determination that an anomaly has occurred in the test is made.

A method and device to locate an impact on an outer surface of a body including: locating the impact on the outer surface of a virtual model of the body; selecting a first and a second visual reference element on the virtual model; positioning an acquisition module on the outer surface of the actual body at the impact; measuring, using an acquisition module, measuring distances between the impact and the first visual reference element and between the impact and the second visual reference element; calculating a first arc around the first visual reference element and a second contour around the second visual reference element wherein each arc has a radius equal to one of the measured distances; determining a point of intersection of the first and second contours; and calculating coordinates of the point of intersection on the virtual model to locate the impact on the virtual body.

A method and device to locate an impact on an outer surface of a body including: locating the impact on the outer surface of a virtual model of the body; selecting a first and a second visual reference element on the virtual model; positioning an acquisition module on the outer surface of the actual body at the impact; measuring, using an acquisition module, measuring distances between the impact and the first visual reference element and between the impact and the second visual reference element; calculating a first arc around the first visual reference element and a second contour around the second visual reference element wherein each arc has a radius equal to one of the measured distances; determining a point of intersection of the first and second contours; and calculating coordinates of the point of intersection on the virtual model to locate the impact on the virtual body.

The disclosure relates to a sensor apparatus for a vehicle, in particular a motor vehicle, having at least one sensor for detecting operational values of the vehicle while driving on a roadway, having a checking device for monitoring the functional capability of the at least one sensor. There is provision that the checking device has at least one communication device which is designed to detect a reference means in the surroundings of the vehicle during driving, and a control unit which compares an output signal of the sensor with an expected setpoint output signal as a function of a detected reference means, in order to determine the functional capability of the sensor.

A sensor arrangement for determining the CO.sub.2 concentration in an interior space has an NDIR sensor unit that can determine the number of CO.sub.2 molecules on an optical measuring section and therefrom the CO.sub.2 concentration in an interior space. The sensor arrangement further has an evaluation unit that can calculate the air pressure from measurement values of the NDIR sensor unit and that can carry out an air-pressure compensation on the basis of the value calculated for the air pressure or of an air pressure correction value calculated therefrom for the measurement value of the CO.sub.2 concentration determined by the NDIR sensor unit.

Methods and system pertaining to displaying vehicle data parameters (VDP) are described. A vehicle service tool (VST) with a display can receive vehicle data messages or signals from a vehicle to receive the VDP. Some of the VDP can be associated with a PID. The VST can display VDP thresholds and indicators when a received VDP has breached a VDP threshold. The VST can determine being changed from a landscape orientation to a portrait orientation or vice versa and responsively change the presentation of VDP graphs displayed by the display. The display can receive various inputs such as a drag-and-drop or pinch-and-expand input to alternatively change the presentation of the VDP graphs being displayed. Changing a VDP presentation of graphs can include resizing or repositioning one or more VDP graph windows including a VDP graph.

Methods and system pertaining to displaying vehicle data parameters (VDP) are described. A vehicle service tool (VST) with a display can receive vehicle data messages or signals from a vehicle to receive the VDP. Some of the VDP can be associated with a PID. The VST can display VDP thresholds and indicators when a received VDP has breached a VDP threshold. The VST can determine being changed from a landscape orientation to a portrait orientation or vice versa and responsively change the presentation of VDP graphs displayed by the display. The display can receive various inputs such as a drag-and-drop or pinch-and-expand input to alternatively change the presentation of the VDP graphs being displayed. Changing a VDP presentation of graphs can include resizing or repositioning one or more VDP graph windows including a VDP graph.