Abstract: The dynamic setting of an apparatus (1) designed to check the behavior of tires comprises a rotating drum (9) arranged to act in thrust relation on a rotatable tire. A dynamometer cell (10) is connected to an electronic processing unit (12) for detecting the dynamic forces transmitted from the tire (5) to the drum (9). The setting is carried out by applying a predetermined static load to the drum (9) and afterwards transmitting cyclic dynamic forces having a predetermined frequency, intensity and dynamic variation to said drum. The cyclic forces are produced by an eccentric (20) transmitting a reciprocating motion to a movement block (22) connected to the dynamometer cells (10) by springs (29, 31). Signals emitted by the dynamometer cells (10) are detected and stored by the processing unit (12) in order to obtain data to be compared with signals emerging during the test of a tire (5).

Abstract: The device allows the monitoring and diagnosis of the functioning of a system for controlling the stopping and restarting of an internal combustion engine for motor vehicles, comprising a plurality of electrical sensors which output two-level signals indicative of the condition of members which control the running of the engine and/or of respective controlled parameters or ranges, and an electronic monitoring and control unit with a microprocessor, connected at its input to the sensors and at its output to actuators for causing the engine to stop and restart. The diagnostic device comprises an interrogation device for carrying out a succession of sequential cyclical scans of the outputs of at least some of the sensors, and for generating, at each scan, a serial signal comprising a plurality of two-level signal portions, each indicative of the level of signal produced at the output of the respective sensor.

Abstract: A method and apparatus for the antiskid braking of a vehicle, of the type in which the signals representing the speed of two wheels of an axle of the vehicle are generated and used, together with a signal representing the deceleration of the vehicle to generate control signals for successive release and reapplication of the brakes during a braking operation, in which a signal representing the slowest wheel of the axle is compared with a reference signal generated cyclically from the said speed and deceleration signals in successive intervals of time using the expression ##EQU1## where A, B and C are predetermined constants, d.sub.v is the deceleration signal and T.sub.1 is the reciprocal of the signal representing the speed of the slowest wheel of the axle.