Quote:
Originally Posted by RobertSmalls
The correct approach is to engage the clutch until you have just enough kinetic energy to crest the first hill, then disengage the clutch and coast the rest of the way. Also, disengage the clutch if engine speed exceeds the peak of the efficiency curve, and re-engage if that is necessary to climb the first hill. The result will be that once the vehicle gets up to the speed corresponding to peak efficiency, it will hold that speed by running the engine at whatever duty cycle is required (this is familiar to ecomodders as pulse and glide).
Vehicle speed at the crest of each hill will approach zero, and the driver will die of old age before he finishes the course.
|
Quote:
Originally Posted by tasdrouille
All you have to do is to generate the energy needed to get to the top of the first hill in the most efficient way possible.
Engage the clutch, start the engine, set engine speed (and load obviously) at max efficiency while climbing till you have just enough kinetic energy to make it over the top of the hill at which point you disengage the clutch while you're still climbing, shutting the engine off automatically, you'll just barely make it over the top and you then coast this way going up and down hill for a while with the engine off and just brake (or barely engage the clutch, the resistance of the engine should stop the car) when you want to stop at the very top of the third hill.
|
Well, it's Wednesday morning and no one has found the answer yet. I'll get the ball (car?) rolling a little further by letting you know that there is some truth to what you two are proposing, but you're missing the most important part of the solution.