Hybrid Car – More Fun with Less Gas

Vehicle Gas Consumption - Accurate? - Page 11

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Posted by News on May 20, 2012, 7:41 pm
On 5/20/2012 3:25 PM, Elmo P. Shagnasty wrote:

Hardly 'ad hoc'; *consistently high* trip computer calculation.

Posted by Bruce Richmond on May 21, 2012, 12:41 am

And the energy content of the fuel is not the answer.  It doesn't even
enter into the calculation.  The calculation only includes distance
traveled in miles and volume of fuel in gallons.  The volume of the
fuel in gallons is calculated based on the flow rate of the injectors
and the length of the pulses they are kept open for, both recorded in
the computer data.  If the injector is not the size it is supposed to
be the volume passing through it is calculated incorrectly and you
will come up with a consistently high or low mpg because the volume
being entered for each pulse is incorrect.  It has nothing to do with
energy content, just calibration.

Posted by News on May 21, 2012, 1:54 am
 On 5/20/2012 8:41 PM, Bruce Richmond wrote:



Try again:  E-N-E-R-G-Y C-O-N-T-E-N-T defines W-O-R-K

Posted by Elmo P. Shagnasty on May 21, 2012, 11:15 am

neither of which has anything directly to do with V-O-L-U-M-E

Posted by News on May 21, 2012, 12:57 pm
 On 5/21/2012 7:15 AM, Elmo P. Shagnasty wrote:

The "original question" was not an MPG calculation.

The "original question" is "why is the Prius calculated MPG
*consistently* wrong?"

Not one time, *consistently* wrong, in ONE DIRECTION.

Not a V-O-L-U-M-E error.

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