Thread: ICE RPM questions for those with a ScanGauge
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Old 02-06-2008, 09:42 AM
SPL SPL is offline
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Real Name: Stanley Lipshitz
Location: Waterloo, ON
Hybrids: 2007 Toyota Camry Hybrid
Posts: 855
Default Re: ICE RPM questions for those with a ScanGauge
FastMover — For a road speed of 50 mph, and for the ICE rpm's that you cite at this road speed, I compute quite different values for MG1's rpm using my formulas (from the thread "Heretical Mode" post #40):
  • ICE = 1450 rpm => MG1 = -684 rpm (Heretical mode)
  • ICE = 1550 rpm => MG1 = -324 rpm (Heretical mode)
  • ICE = 1650 rpm => MG1 = +36 rpm (Normal mode)
We really must try to resolve this discrepancy, which has cropped up before. If I am wrong, I'd like to correct my formulas; and if you're wrong I'm sure that you'd like to do likewise. I've clearly explained the derivation of my formulas in the thread cited above. They are deduced from Toyota's published gear ratios for the TCH. In the interests of accuracy and transparency, please tell us your formulas and their derivation!

Stan
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