Average fuel consumption rate measuring system
First Claim
1. An average fuel consumption rate measuring system comprising:
- a distance measuring circuit for generating a first electric signal each time a predetermined distance is traveled by a running vehicle;
a distance integrating circuit connected to said distance measuring circuit for counting said first electric signals to form an integrated value indicative of the cumulative distance traveled by said vehicle;
a fuel measuring circuit for generating a second electric signal each time a predetermined quantity of fuel is consumed by said vehicle;
a fuel integrating circuit connected to said fuel measuring circuit for counting said second electric signals to form an integrated value indicative of the cumulative amount of fuel consumed by said vehicle;
a divider circuit connected to said distance integrating circuit and said fuel integrating circuit for repetitively obtaining an average fuel consumption rate by dividing the integrated cumulative value of one of said integrating circuits by that of the other of said integrating circuits each time a selected one of the integrated cumulative values increases by a predetermined value; and
an indication circuit connected to said divider circuit to indicate the result of said division by said divider circuit.
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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.
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Citations
5 Claims
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1. An average fuel consumption rate measuring system comprising:
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a distance measuring circuit for generating a first electric signal each time a predetermined distance is traveled by a running vehicle; a distance integrating circuit connected to said distance measuring circuit for counting said first electric signals to form an integrated value indicative of the cumulative distance traveled by said vehicle; a fuel measuring circuit for generating a second electric signal each time a predetermined quantity of fuel is consumed by said vehicle; a fuel integrating circuit connected to said fuel measuring circuit for counting said second electric signals to form an integrated value indicative of the cumulative amount of fuel consumed by said vehicle; a divider circuit connected to said distance integrating circuit and said fuel integrating circuit for repetitively obtaining an average fuel consumption rate by dividing the integrated cumulative value of one of said integrating circuits by that of the other of said integrating circuits each time a selected one of the integrated cumulative values increases by a predetermined value; and an indication circuit connected to said divider circuit to indicate the result of said division by said divider circuit. - View Dependent Claims (2, 3, 4, 5)
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Specification