Abstract: An on-board vehicle diagnostic system includes sensors for detecting vehicle operating parameters, such as speed, wheel speed, yaw rate, transverse acceleration, and/or tire operating parameters, such as the tire inflation pressure and the temperature at the belt edge. Relationships between the parameters are stored in a diagnostic model so that depending on the complexity level of the system and performance requirements, predictions regarding the wear condition of the tire and/or defective vehicle adjustments are possible.

Abstract: A pneumatic tire mountable of the rim of a vehicle wheel has a toroidal structure including a pair of beads for receipt on the rim of a vehicle wheel such that the pneumatic tire is secured to the vehicle wheel for rotation therewith. The pneumatic tire also includes a tread band surface at the radially outermost location of the toroidal structure for contacting a surface along which the tire rolls. A plurality of sensor elements are disposed in the tire for sensing at least one operational parameter of the tire, with at least some of the sensor elements being in sensing arrangement with the tread band surface and the sensor elements being operable to permit reading of data concerning any tire operational parameter which is sensed by the sensor elements.

Abstract: An apparatus for producing sounds corresponding to the operation of an internal combustion engine in the interior space of a motor vehicle is characterized by a pressure sensor (20) that detects fluctuations in pressure in a fresh air stream into the engine, an amplification device (32, 33) for amplifying output signals of the pressure sensor, and at least one speaker (34) attached to the amplifier and arranged in the interior space of the vehicle for reproducing the amplified signals.

Abstract: A pneumatic tire mountable of the rim of a vehicle wheel has a toroidal structure including a pair of beads for receipt on the rim of a vehicle wheel such that the pneumatic tire is secured to the vehicle wheel for rotation therewith. The pneumatic tire also includes a tread band surface at the radially outermost location of the toroidal structure for contacting a surface along which the tire rolls. A plurality of sensor elements are disposed in the tire for sensing at least one operational parameter of the tire, with at least some of the sensor elements being in sensing arrangement with the tread band surface and the sensor elements being operable to permit reading of data concerning any tire operational parameter which is sensed by the sensor elements.

Abstract: A vehicle tire is provided that contains at least one temperature sensor embedded in the tire in a critical location, and a transmission unit for transferring the output signal of the temperature sensor to a location externally of the vehicle tire. A method is also provided for precisely measuring the temperature of a vehicle tire with such a temperature sensor. A method is also provided for monitoring the operation of the vehicle tire.