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Change the idle MP to reduce idle power a bit. This is basically a

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hack, and should be replaced with a sane idle model that has some
physical justification.
This commit is contained in:
andy 2002-04-09 04:55:16 +00:00
parent cea3b2e4eb
commit 4a2f192fb1
1 changed files with 3 additions and 2 deletions
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5
src/FDM/YASim/PistonEngine.cpp
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@ -138,11 +138,12 @@ void PistonEngine::calc(float pressure, float temp, float speed)
// turbocharging and reduced by the throttle setting. According
// to Dave Luff, minimum throttle at sea level corresponds to 6"
// manifold pressure. Assume that this means that minimum MP is
// always 20% of ambient pressure. But we need to produce _zero_
// always 20% of ambient pressure. (But that's too much idle
// power, so use 10% instead!) But we need to produce _zero_
// thrust at that setting, so hold onto the "output" value
// separately. Ick.
_mp = pressure * (1 + _boost*(_turbo-1)); // turbocharger
float mp = _mp * (0.2 + 0.8 * _throttle); // throttle
float mp = _mp * (0.1 + 0.9 * _throttle); // throttle
_mp *= _throttle;
if(mp > _maxMP) mp = _maxMP; // wastegate