Hi,
I've started two threads about SAE 2009-01-1322 to discuss "Vehicle Inertia Impact on Fuel Consumption of Conventional and Hybrid Electric Vehicles Using Acceleration and Coast Driving Strategy" Lee, Nelson, and Lohse-Busch:
I am not interested in 'trolling for members' to either site but there is a technical issue of trying to address discussions in multiple threads. It is my hope that someone here may also look at SAE 2009-01-1322 and if there is an interest in technical aspects of the paper, we may explore the paper.
The short form of my concern is I don't think the paper has properly factored in aerodynamic drag. If so, it may go a long way to explaining why their pulse and glide results, 25% better, or nearly twice the value I've found in my testing, 11%.
BTW, I think this paper makes a number of significant and important advances and in particular I appreciate:
- comparing P&G vs. equivalent constant speed
- modeling both
There is much more right with this paper and I believe it should be the starting point for follow-up papers that fully address what is going on.
Bob Wilson