Abstract: Carburant consumption indicator device for automobiles which monitors such information as the motor operating conditions, the selected gear ratio and the degree of gas butterfly valve opening which is characterized by several signal elements to each being separately disposed on the vehicle dash board and capable of informing the driver of the above information with the information detected and processed in known electronic circuits and then being processed in an interface circuit with several logic gates (69, 75, 83) which monitor the computational priorities between the information received before being sent to the control circuits (7) of the signal elements.

Abstract: A device for checking and controlling the proper closing and locking of a safety belt of the seat of a vehicle, comprising a system for emitting electrical oscillations and at least one receiver, and reference electric switches for detecting the position of the belt and the presence of the occupant of the seat, and an alarm system.

Abstract: An anti-skid system for a motor vehicle having a driving wheel and a non-driving wheel to protect the driving wheel from skidding. The system includes a first sensor for generating a number of pulses proportional to the peripheral distance traveled by the driving wheel, a second sensor for generating a number of pulses proportional to the peripheral distance traveled by the non-driving wheel, the second sensor generating a higher number of pulses than the first sensor for the same peripheral distance traveled by the respective driving and non-driving wheels, and a unit, responsive to the signals generated by said first and second sensors, for detecting the difference in peripheral distance traveled by the driving and non-driving wheels independently of time. The detecting unit includes a circuit for producing a delay in the ignition system when the difference in peripheral distance traveled is greater than a predetermined value to adjust engine torque and to maintain optimum road adherence of the wheels.