On the reliability front, electric vehicles have far fewer moving parts than IC vehicles. If the world switches entirely to electric, really great electric 4x4s will appear.
I can't recall a time that I've used a cordless drill and thought to myself, "man, this thing would be so much better if it were powered by a two-stroke motor".
This advantage is especially clear in the case of a 4x4: one need not include viscous couplings and fancy differentials.
>electric vehicles have far fewer moving parts than IC vehicles
Not true. You still have the suspention system which has a lot of moving parts. there are also the moving parts of the brakes. Then the steering system. In theory you don't need a transmission, but in practice you do.
There are a few less moving parts, but not substantially less. The moving parts you lose are mostly in a controlled environment with plenty of lubrication and no dirt (though there are other acid combustion byproducts).
> I can't recall a time that I've used a cordless drill and thought to myself, "man, this thing would be so much better if it were powered by a two-stroke motor".
I have a cordless chainsaw and weed whip. Both would be better with an IC engine. Batteries are much heavier than gas, and this is really noticeable when using them for a while. These are new Dewalt 60 volt systems, not some old technology. Of course there are advantages to battery - I won't got back to gas, like I would have 20 years ago when I first used a battery weed whip. I like the low noise and there is plenty of power. However the gas engine would be lighter.
I've also seen gas powered drills and I'm sure that the same applies, batteries are good, but the extra weight to get the same power is a factor. Most drills are used indoors of course so gas was never a real option and that is why battery drills become popular as soon as they worked at all.
> >electric vehicles have far fewer moving parts than IC vehicles
> Not true.
What? It is absolutely true.
Yeah, you still have suspension, steering, and brakes.
But the transmission is a single reduction gear. No clutch or torque converter. No shifting mechanism. No planetary gears, dog tooth gears, synchronizers, etc. Just a single pair of gears that are constantly meshed.
And no engine means no pistons, crank shafts, valves, camshafts, timing belts, fuel pumps, oil/fuel filters, etc. And that doesn't even begin talking about ICEs with forced induction.
The suggestion that EVs don't have fewer parts is insane. You've replaced a complicated transmission system to a single reduction gear. An entire engine and all of its complexities replaced with a far simpler electric motor.
> I have a cordless chainsaw and weed whip. Both would be better with an IC engine.
In a small application like that, yeah you might want ICE because a chainsaw requires a lot of power which would mean a heavy battery.
For a weed whacker, I use a Ryobi which gets the job done because I have a small yard. It's pretty light, but I imagine it wouldn't be enough for anybody with a large perimeter. It's good enough for most houses though.
There’s a detailed explanation of the differences between an electric motor and an internal-combustion engine (ICE). The latter is far more complicated - it requires a crankshaft with counterweights to translate the linear motion of the pistons into rotational motion, a flywheel to smooth power output, a DC motor for starting, an alternator to charge the battery, a cooling system, and a host of other gadgets that an electric motor doesn’t need. An induction motor, which produces direct rotational motion and uniform power output, is much smaller and lighter. Tesla’s induction motor puts out 270 kW of power and weighs 31.8 kg, whereas an ICE that produces 140 kW of power is going to weigh around 180 kg. [1]
Teslas use electric motors that have two moving parts, and single-speed “transmissions” that have no gears. The company says its drivetrain has about 17 moving parts compared with about 200 in a conventional internal combustion drivetrain.[2]
Far fewer moving parts, and a transmission with no moving parts.
Electric cars are so efficient that they are actually bad for the economy - by some estimates it may cut the number of jobs in auto manufacturing by 50%. [2] Who knows how many jobs will be lost with the reduction in fossil fuels and the disappearance of gas stations, fuel deliveries, fewer mechanics... Electric motors also last for decades with negligible degradation compared to ICEs. The advances in battery technology will make older EVs that much more valuable, since their range will increase over time with battery upgrades that will probably be cheaper than buying a similarly sized IC engine.
I can't recall a time that I've used a cordless drill and thought to myself, "man, this thing would be so much better if it were powered by a two-stroke motor".
This advantage is especially clear in the case of a 4x4: one need not include viscous couplings and fancy differentials.