291–300 of 343 posts
Earlier quoted context omitted.
Tesla Tequila is a spoof off of Tres Comas (was priced at $250, limit two, as an alleged nod to their imminent inclusion in the S&P500), and honestly it’s pretty good tequila for a marketing spoof.
Can you use the Tesla Tequila as fuel in the Tesla flamethrower?
Earlier quoted context omitted.
>> You could limit the initial torque in software, but that’d kill the joy of the EV. All electric cars are torque-limited. They simply have to be. A static electric motor, of the type needed for higher speeds, given full voltage would not only snap bits of the drivetrain but rip apart its own mounts. So they are all limited to various degrees. The limiting factor on low-speed power for EVs isn't the motor. It's the…
>All electric cars are torque-limited. They simply have to be. A static electric motor, of the type needed for higher speeds, given full voltage would not only snap bits of the drivetrain but rip apart its own mounts. So they are all limited to various degrees. Electric motors are far, far, more forgiving to drive-train components than sporty vehicles with manuals and medium duty trucks of equivalent power levels bec…
https://en.wikipedia.org/wiki/Motor_controller
"A motor controller is a device or group of devices that can coordinate in a predetermined manner the performance of an electric motor. [...] regulating or limiting the torque, and protecting against overloads..."
Earlier quoted context omitted.
Locomotives have a very different relationship with weight than road going vehicles do. Of course an economy car will have a single speed transmission but vehicles that need to put out peak power at both low speeds and high speed (e.g. the Taycan, and an F250) are going to benefit greatly from a way to optimize for multiple speed ranges.
I doubt it. There's no reason to bother doing the research to add another mechanical component which can wear and fail early, when you can just put a more powerful electric motor in. That's the thing: the incentive structure has changed. The better use of time and research dollars is going to be just upgrading that motor till it's adequate. There's a logical cap on the maximum road speed you need to accomodate, so th…
It might or might not be worth it, but transmissions that last as long as the car with no maintenance are common (oil changes are recommended, but few people do).
Earlier quoted context omitted.
In my state they roll a lot of safety inspection type stuff into the test. There are no standards for "how to engage the hazard blinkers" across manufacturers so the testing process verifies that at least one time in their driving experience all drivers turned the hazard blinkers on in their private car, and maybe they helped their kids or grandkids figure it out later in life. I've driven several manual transmission…
>EU test inspectors must provide enormous amounts of leeway during testing. In my experience, no. The difference is that pass rates are at 20-30%.
Earlier quoted context omitted.
I wonder what torque looks like at 0 rpm. I thought that was peak? But If it’s bad maybe a torque converter would be useful?
Electric motors "torque ripple" at low RPMs (well, at all RPMs, but it is most noticeable at lower RPMs), which can cause motor "cogging". Cogging is either a complete stall, or really jerky behavior that feels pretty close to what an ICE is like at very low RPMs. * There are different motor designs out there that alter power delivery for situations where very low-RPM torque is required. As with most design decisions…
Earlier quoted context omitted.
At least here in Poland you can only take the exam in the car provided by the testing centre, you can't have the exam in your own car(with some exceptions like when you need to have a car adjusted to your disabilities)
I believe that's the case all over Europe. That the US apparently or supposedly allows taking a car driver's license exam in your private car is.. extremely surprising.
Earlier quoted context omitted.
Accelerating to a highway would be a dead giveaway to an examiner. Those who learn to use the clutch well enough in the mandatory 20 hours to do it as smooth as automatic gear are few and far between. And obviously they are the ones who wouldn't need to fake it anyway.
Yeah, it'd be like when a TV character "plays" a guitar with dubbed music without moving their left hand.
Earlier quoted context omitted.
I'm not sure of the power curve for an electric vehicle, but if you add gearing, you introduce losses due to gearbox and you increase complexity. It's likely that it is not worth it in most applications. Only cars that used gearboxes in EV space (two speed) are usually intended to be able to hit 200mph so they need extremely wide rpm range from their electric motors. I know Rimac used one and Taycan (not surprising s…
Hybrids often use gearboxes. My wife's Prius was essentially an extremely heavy 70 HP equivalent EV. 0 to 10 it was a very fastest car although the acceleration curve flattened out fast and it was between hard and impossible to have enough traction to max it out. I don't hear much about prius transmissions being destroyed. Something interesting to think about, I wonder with demographic trends etc if 0 to 10 is a more…
I speculate the widespread ability to do small scale manufacture of the base skateboard (wheels, motors, battery, "frame" part of body on frame) dropping to $5000 in about 10 years.
Sure it might not get the range / weight advantage of Big Auto EVs (that is, once the rest of Big Auto starts to close the gap with Tesla), but it will probably still do 200 miles for daily driving or fun driving. It probably won't have slick software, won't self-drive, etc.
Then there is the drop-in engine replacements. Again, once batteries get cheap and good enough, you can probably get a 100-150 mile range on a all-in-one battery+motor drop in for a, for example, chevy big block. Stick shifts could do regen with the old "engine braking", or single pedal driving could probably be done too.
But it might save a vast array of old cars. If the cheap skateboard can be tailored for the old car wheelbase/dimensions, you could see old cadillacs rolling around with these inside of them.
Earlier quoted context omitted.
There was no question posed. I was simply injecting a random piece of trivia (which I acknowledged). Now that you understand my intent, why do you keep pressing? These are the types of responses that make people not want to comment on news.yc.
To be fair the wording was a little ambiguous but sokoloff could have asked for clarification of meaning rather than dropping a "gotcha" sort of disagreement.
What I intended was: Hey, John DeLorean started a car company with his name on the door, which is super-cool. If I wanted to go get started on creating Sokoloff Motors, what's the background I should seek to maximize my chance of succeeding? I wonder how John DeLorean got his start... In that regard, becoming a division head at GM is probably overwhelmingly the most relevant experience.
I'll drop the topic here with a final apology for any unfairness or "gotcha" feeling that I caused.