This guy is a bit of a conspiracy theorist, but there might be some truth in what he says. Not going to make petrol heads happy if true tho. Sales of fossil cars are going to be getting banned all over the world soon. https://www.youtube.com/watch?v=VT4lY6HWdfA
tony9,
Apr 6, 11:56am
No, that is not what accounts for the so called 80% loss. Only 5-10% of ICE power is lost through rotating parts and friction. The rest are heat conversion losses which happen when any carbon based fuel uses a heat engine to convert into rotary power.
These days these losses in a modern ICE engine can be as low as 40-50% depending on design. However when we are burning coal at Huntly those losses are around 70% before get into grid and local distribution losses.
Speak to mechanics who have to work on these EV and hybrid vehicles. You can buy a six year old petrol car and have years of trouble free running left, and repairs are usually quite cheap. EVs can involve horrendous costs down the line and hybrid motors simply don't reach peak heat so can gum up.
pico42,
Apr 6, 5:58pm
Well duh. But the technology is advancing, improving all the time. What is fact now will be history in a few years. Just like ICEs. It has to start somewhere.
apollo11,
Apr 6, 6:31pm
"electric motors fail just as regularly as a petrol motor but unlike a petrol motor you can't just replace 1 part on a electric motor you have to replace the whole motor and that can be thousands of dollars" Electric motors wear out their bearings. Easily replaced. Not sure why hybrid IC engines have anything to do with it.
marte,
Apr 6, 7:07pm
The electric motors put out huge amounts of torque, this is tough on the bearings & gears and as soon as the bearings wear, so does the gears. Thats the weakness of the electric car motor.
apollo11,
Apr 6, 7:22pm
Yep, Tesla had issues with the early model S gear trains getting chewed out. It isn't unusual for a new platform or technology to have issues that need sorting.
tygertung,
Aug 24, 11:42am
So does a V8 put out huge amounts of torque. Or a truck engine. Just need to design the gearbox accordingly.
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