No EVs just a proper Hybrid, page-61

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MisterC

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27/06/22

13:46

Post #: 62227040
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Originally posted by Quamera: ↑

Its all a matter of balance, a long range EV may have half its weight and cost tied up in a battery but many lower range models don't and with advances in construction and chemistry the metrics a constantly improving. At 1750kg a base Model 3 has the same weight as a V8 VF Commodore with very similar performance and interior room. If the SS V Commodore was still available now it would have about the same sticker price as well although the TCO would massively favour the Tesla. Interestingly a BMW 5 series and your beloved RAV4 Hybrid also have about the same weight as the Model 3.

WWII subs all had batteries, their drive was full electric, on the surface a diesel generator provided enough power to charge the batteries and supply the electric motors, underwater they relied on the batteries because they needed the oxygen to breathe, didn't want to leave a line of exhaust bubbles and wanted to stay silent.

A diesel electric locomotive has a fully electric drive and no batteries which means that the diesel generator has a continually varying load.

Some of the big iron ore railways in the Pilbara are swapping to a mixture of DE and pure EV locos to make hybrid trains. The DE gives relatively constant power while the EV loco provides the peak urge for starting off and inclines as well as storing energy on declines and while slowing down. Because the route and its energy demands are all pre programmed efficiency is maximised and diesel use is massively reduced. On some lines with an elevated start point going to sea level a pure EV train can do a return trip without the help of a DE loco.

It should be noted that so far no one is making a hybrid locomotive, they are all either the old DE or pure EV (with up to 14MWh batteries) but by teaming them up it is easy to make a hybrid train.

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Diesel plug in hybrid would be fantastic, imagine the range. Manual switch to electric only in metro areas.
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