[Diy_efi] Area under torque curve?

[Derek]

You've taken me back over 40 years to my student days but let me give
this a try.

Y = acceleration = distance/time/time
X = time
So area under curve = distance/time/time x time
            = distance / time
            = speed

Y = speed = distance/time
X = time
Area under = distance/time x time
           = distance

So let me try your question now -
X = torque = force x distance
Y = revs/time
Area under = force x distance x revs / time
           = force x distance / time (since revs are dimensionless)
           = "lb.ft. per sec" for instance
           = "rate of doing work"
           =  POWER - I think! - correct me if I'm wrong.

Not exactly "How fast the car is" - but much the same meaning after a
couple of beers.

Derek



Mike Diehl wrote:
> >If you have a plot of acceleration over time, then the area under
> that curve
> >is speed at a given time.  And the area under the "speed" curver
> over time is
> >distance traveled at a given time.
> >
> >Now, if you had a plot of torque over RPM, is there a similar
> interpretation of the area under such a curve?
> 
> Yep. Relates pretty closely to the area (integral) under the
> acceleration curve, in other words how fast the car is !!



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