Abstract: There is provided a fuel consumption measuring device wherein each time the fuel injection valve in a fuel injection system for an internal combustion engine is opened, a first pulse signal is generated whose pulse width corresponds to the duration of the opening of the valve, and the pulse width of the first pulse signal is measured to generate second pulse signals corresponding to the quantity of fuel fed, whereby an exact amount of the fuel consumed or remaining in the fuel tank is stored.

Abstract: An average fuel consumption rate measuring system wherein the distance traveled by a vehicle per unit fuel consumption is computed and indicated to let the driver know the driving conditions of the vehicle and instruct the driver in economical driving. Namely, a first electrical signal is generated for every predetermined distance traveled by the vehicle and the signals are integrated to indicate the total distance traveled, while on the other hand a second electrical signal is generated for every predetermined amount of fuel consumed by the vehicle and the signals are integrated to indicate the total fuel consumption, and one of the integrated value is divided by the other to indicate an average fuel consumption rate.

Abstract: A digitally-operated displacement detecting system, whereby a change in the level of the fuel in the fuel tank of an automobile is converted into a digital signal, and this digital signal is transmitted and received in accordance with a time-sharing multiplex transmission system to actuate a fuel meter to provide an accurate indication of the fuel level with minimum error and without being affected by any abnormal changes in the fuel level.

Abstract: There is provided an electric wiring system in which a plurality of electric components, a plurality of command switches for actuating the electric components and a plurality of sensors, etc., are provided at various points of an automotive vehicle, transmitting and receiving units of time-shared pulse transmission type which are arranged at the various points of the vehicle are interconnected through a plurality of electric wires or lines, the electric components or loads are divided into a plurality of locals each thereof including a group of the loads, and the transmission and reception of information between the respective locals and a command section is effected by a time-shared pulse transmission method, whereby reducing the hazard of short-circuit fault.