Patent ID: 6321178
Filing Date: 2001-11-20
Classification: B60K,B60W,B60Y,F02D,G01F,G01G

Abstract:
A diagnosis apparatus suitable for use on a vehicle which has an engine mounted thereon and which can convey a loaded material, said diagnosis apparatus comprising:engine rotating speed detecting means, for detecting a rotating speed N of the engine;fuel injection amount detecting means, for detecting a fuel injection amount q per rotation of the engine;loaded weight detecting means, for detecting a weight W of the loaded material;vehicle speed detecting means, for detecting a speed V of the vehicle;trigger signal oscillating means, for oscillating a trigger signal d per predetermined time period t.sub.o ; andcalculating means, which receives a detected rotating speed N from said engine rotating speed detecting means, a thus detected fuel injection amount q from the fuel injection amount detecting means, a thus detected weight W from the loaded weight detecting means, a thus detected vehicle speed V from the vehicle speed detecting means, and a trigger signal d from the trigger signal oscillating means; which calculates a time period t (=n.multidot.t.sub.o) for which the rotating speed N and the fuel injection amount q are maintained substantially at their same values on a basis of a number n of the trigger signal d; which calculates an accumulative total fuel injection amount Q (=.SIGMA.q.multidot.N.multidot.t); and which calculates at least one of a fuel injection amount q1 (=Q/.SIGMA.t) per unit time and a conveying amount w1 (=.SIGMA.W.multidot.V.multidot.t/Q) per unit fuel injection amount.