Quote:
Originally Posted by ConnClark
So it allows them to downsize an engine more to save fuel. If the technique is added to an existing car it would just be a performance enhancement and not a fuel saver. Correct?
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I reckon that since transient loads are the least efficient,and steady-state the most efficient,that Honda was killing both birds.
When under acceleration,they were removing some load during this least efficient operation to get the car up to operating velocity,then making up the difference on the battery when the engine was near peak BSFC and would suffer a smaller mpg hit.
The same could have been done with the AC compressor employing a normally-closed vacuum switch which goes open circuit upon loss of manifold vacuum.AC is a major hit with a 60-bhp engine.