4 ms·
Think of overall energy expenditure as a pie chart. In ICE car a large chunk of that pie chart is heat waste. If you delete that chunk, everything else becomes
by pornel 3y ago
Think of overall energy expenditure as a pie chart. In ICE car a large chunk of that pie chart is heat waste. If you delete that chunk, everything else becomes relatively more important.
In EVs there's very little power loss in the drivetrain itself, so other external factors like rolling resistance and aero drag become the major factors.
- kumarvvr 3y agoWouldn't the added weight & extra energy use of the actuation mechanism, cables and control system be more than the energy saved from aerodynamic losses?
- SamBam 3y agoYou could go ask all the engineers if they got it wrong.
- kumarvvr 3y agoYeah, it could very well be possible because the engineers could have concluded that this consumes more energy than it saves, but marketers insisted it be there because they are selling a luxury car to rich customers. You seem to imply that the engineers only approve something for technical reasons. Sometimes, they have to incorporate something for purely non-technical / efficiency reasons.
- ferongr 3y agoNo. The energy use is comparatively miniscule and weight (to a point) doesn't really matter for high speed, highway driving efficiency.