C.r.f. Societa Consortile Per Azioni

Fiat Auto S.p.a.

Centro Ricerche Fiat S.p.a.

Ermanno Ansaldi

Stefano Re Fiorentin

Andrea Saroldi

Sergio Damiani

Maurizio Miglietta

Roberto Montanari

Icon on a portion of a vehicle display unit used in a global warning anti-collision system or similar article

The method for avoiding collision between a motor vehicle and obstacles placed in the path of the vehicle comprises the stages of forming a radar map of the area in front of the vehicle, reconstructing the geometry of the road, identifying its edges, detecting the position and speed of the vehicle with respect to the road, determining the presumed path of the vehicle on the basis of the road geometry and the manoeuvre being carried out by the vehicle at that instant, detecting objects on the radar map found lying in the presumed path of the motor vehicle and displaying the map found in a perspective representation, ignoring objects which are off the road and indicating objects in the path of the vehicle in a different manner according to their hazard and if appropriate generating alarms of an acoustic type.

Method and means for avoiding collision between a motor vehicle and

An ultrasonic device for measuring the delivery of fluid through a conduit. A pair of electroacoustic transducers are arranged in the wall of the pipe forming the conduit in a mutually confronting relationship along an axis inclined relative to the conduit axis. Each transducer is able to convert an electric signal of predetermined frequency into an ultrasonic wave which propagates through the fluid toward the confronting transducer. After a predetermined interval of transmission, each transducer receives the transmitted wave and converts it to an electric signal. A collimator is disposed in the path of the fluid upstream of the transducers. An oscillator outputs electrical signals of predetermined frequency to the transducers. In response to receipt of the ultrasonic waves, the transducers send electric signals to processing circuitry which detects the phase difference between the ultrasonic waves received by the respective transducers and correlates the phase difference with the delivery of fluid in the conduit.

Ultrasonic device for the measurement of the delivery of a fluid in a

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Turin, Italy

Ermanno Ansaldi