Patent ID: 9376981
Filing Date: 2016-06-28
CPC Classification: F02D

Claim Text:
1. A method of using An instantaneous fuel consumption displaying device for a vehicle comprising: a fuel injector for injecting fuel into an engine in response to an injection pulse inputted thereto; an injection controller for supplying an injection pulse corresponding to an amount of injected fuel calculated based on an operational situation of said engine to said fuel injector, and forming information on the amount of injected fuel in accordance with the number of injection pulses supplied to said fuel injector; a display portion including at least a vehicle speed display portion and an instantaneous fuel consumption display portion, said display portion being positioned in a forward portion of the vehicle; a display controller for calculating the instantaneous fuel consumption based on the information on the amount of injected fuel, and displaying information on the instantaneous fuel consumption thus calculated on the instantaneous fuel consumption display portion of the display portion, said display portion displays thereon the information on the vehicle speed and the instantaneous fuel consumption in a digital manner; a communication line through which the information on the amount of injected fuel is transmitted from said injection controller to said display controller; wherein said instantaneous fuel consumption displaying device for a vehicle includes the information on the amount of injected fuel without interference from engine noise that creates a communication error in the communication line by providing a plurality of fuel consumption signals, the injection controller adds time information to the plurality of fuel consumption signals and sends out the resulting information regarding pulse width duration whenever the number of injection pulses becomes a value corresponding to a predetermined reference instantaneous fuel injection amount, and said display controller, while receiving the plurality of fuel consumption signals in order, determines whether or not the fuel signal thus received is a predetermined signal, and when the plurality of fuel consumption signals are discriminated by a reference number, decides that the fuel for the reference instantaneous injection amount is injected, to calculate the instantaneous fuel consumption, thereby displaying information on the instantaneous fuel consumption without interference from engine noise that would create a communication error, wherein the information on the instantaneous fuel consumption is displayed for a time previously set on said display portion, wherein when it is not decided that the fuel for the reference instantaneous injection amount is injected within a period of time for sending of the information on the amount of injected fuel, instantaneous fuel consumption fail display is carried out instead of carrying out the instantaneous fuel consumption display, and wherein when it is not decided that the fuel for the reference instantaneous injection amount is injected at a time point of end of the period of time for sending of the information on the amount of injected fuel, the instantaneous fuel consumption fail display is carried out for a time corresponding to the period of time for sending of the information on the amount of injected fuel, and the period of time for sending of the information on the amount of injected fuel is set approximately equal to a vehicle speed fail display period of time information on which is displayed on said digital vehicle speed displaying portion.