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The Electric Car

blog.geoffralston.com

261–270 of 349 posts

Re: The Electric Car

#261

Earlier quoted context omitted.

Mapping the roads isn't challenging. How do you think humans perform at driving through brand new cities?

Humans don't need cm-scale precise maps in cities to avoid jumping curbs and running into streetlamps. But that's still a requirement for all autonomous cars that have been demonstrated.

Not all autonomous cars require that, either. Nor is there any reason whatsoever to believe it will be a requirement in the future.

Re: The Electric Car

#262
post #245

Earlier quoted context omitted.

For refill time, note that most electric car owners do almost all of their charging in their own garages overnight... not something that's common for gas-powered cars. Long trips are worse for electric cars, sure. But day-to-day driving? Charging is not an issue if you can charge in your garage.

For passenger capacity, note that most car owners utilize 1/4 or 1/5 of their available seats. Yet while all 3 of my vehicles (2 cars and a motorcycle) are 2-seaters, virtually all of my driving is solo (and I'm not even talking about commuting -- I'm primarily a bicycle commuter. Okay, my other 3 vehicles have 1 seat and 2 pedals). The "average" or typical use case is not how people choose their vehicle. They choose…

Peoples choice is guided by what they percieve they will use the car for. So you buy a minivan if you have children, because there will be situations where you need the space, if you have more than 2 children that makes sense. And as you mention, you buy it for the two roadtrips. I know people who spend a crapton on an station wagon two classes larger "because they need to move shit every now and then", completly ignoring that if they just choose the car that fit their every day needs, they can rent the car they need for special occasions and come our way ahead financially.

Many people own 2 cars as well, and it just makes sense to at least make one of them an electric. That is in my opinion will be the tipping point where there is enough demand to heavily invest in proper charging network.

Re: The Electric Car

#263

Earlier quoted context omitted.

For 10K (+3) if you live in USA, you can buy a Nissan Leaf that came out the 3 year lease, and it is a decent car that seats 5 people with a range of about 80+ miles. Batteries are expensive and will continue to be till the turn of this decade and not a whole lot can be done. The better analogy would be laptops vs desktops, laptops gave mobility but they were heavy did not have the power etc. but by 2004 - 2006 they…

The $8,000 price I quoted is after heavy subsidies. I imagine that used Nissan Leaf price is also after subsidies. If electric cars become mainstream I wonder what will happen with subsidies.

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Re: The Electric Car

#264
post #198

Earlier quoted context omitted.

Maximum torque will get you home faster by... 1%? You still can't fly in residential areas at 160MPH. Whereas big capacitive touchscreen allowed to read text at least twice as fast. And you can actually manipulate websites UI. That's entirely new enabler. Electric car does not enable you to sleep in it or grow potatoes. It's a great car, but still a car.

one-pedal responsive operation is a win in the same way multi-touch is a win. It doesn't sound like a big deal,but once you get used to it, everything else seems dated. Operating multiple pedals to operate a vehicle is a leftover from crude technology. Sure, some people like it that way (a set that includes me). But for most people, once they get used to push pedal a bit to go slow, a lot to go fast, let go to stop -…

Modern manual cars behave that way because that's they way they're programmed. If manufactures wanted to, they can make the car behave in any way they want because they're drive-by-wire and the throttle is just an input to the computer. Afaik the break and clutch are still mechanical though.

That said, unless we see a significant leap in battery tech, I think we're stuck with ICE cars for the foreseeable future. But we might see hybrid systems from racing more, that enables the car to become far more efficient in the city.

Re: The Electric Car

#265

Earlier quoted context omitted.

The number of miles driven autonomously doesn't really matter if drivers have to intervene even for a second to resolve an issue. If the car is driving by itself 99% of the time, that's not good enough for the "share an autonomous car" use case. It's no good at 99.9% either. Or 99.99%. It's a lot more interesting if google's cars actually had no steering wheel or way of intervening. Because that's what we're talking…

"It's no good at 99.9% either. Or 99.99%." That's not completely right. If that 99.9% covers 100% of certain use cases, they will be used for those cases. It's like much else in tech, it's not an instant change, it's going to be all about expanding the uses cases over time.

That is the thing with driving - it's amongst other drivers, pedestrians, especially children. There are so few use cases where 99.99% is enough. I can only think of one, highway from A to B - how you get to and from the A and B respectively is not by selfdriving cars.

Re: The Electric Car

#266
post #153

Earlier quoted context omitted.

What do you mean by self-driving cars? As in highly assistive driving on highways so that you can not really pay attention most of the time whether that's legal or not? That I could (maybe) buy though it's a stretch given replacement cycles. But something I can summon with an app and take a nap? 50 years may be too soon.

"Level 4: The vehicle performs all safety-critical functions for the entire trip, with the driver not expected to control the vehicle at any time. As this vehicle would control all functions from start to stop, including all parking functions, it could include unoccupied cars." https://en.wikipedia.org/wiki/Autonomous_car#Definition

Now you just need to define "mainstream".

Re: The Electric Car

#267

I wish people would be slightly more honest about technological change. Smartphones are very special. They are very cheap, easy to mass produce, and you can iterate on them very quickly. Cars on the other hand have a much longer life cycle, involve much more capital, and in general are going to follow an elongated investment / replacement cycle. Comparing these two systems, while enthusiastic and great for a college…

I am one of the biggest Tesla fanboys out. Everything Geoff said is true but he makes it seem like this is around the corner and it isn't even close. At least 60M cars are produced annually[0] and there are about 1B currently in the world[1]. A best case for tesla is to grow from ~50K cars to ~500K cars anually by 2020. There isn't an industrial base yet.

Some other manufacturers will contribute of course, but even if 60m electric cars rolled out annually starting now and started replacing ICE cars, that will take (1B/60M) * years, which is 16years and 8months.

The only way this could be sped up would be the rise of self-driving cars, an increase in public transport and the continuation of urbanization. If many manufacturers stopped making ICE cars and we used much less of them we could replace enough of the current fleet for it to be non-trivial in a few decades.

[0]http://www.worldometers.info/cars/ [1]http://www.huffingtonpost.ca/2011/08/23/car-population_n_934...

Re: The Electric Car

#268
post #172
post #129

Earlier quoted context omitted.

> The Google cars have been rear-ended seven times, often when stopped "but also on the freeway," wrote Urmson, director of Google's self-driving car program. In other collisions, the cars were side-swiped or "hit by a car rolling through a stop sign." Eight of the 11 collisions were on city streets. http://bigstory.ap.org/article/297ef1bfb75847de95d856fb08dc0...

Mentioning accidents makes them sound dangerous. Mentioning that they haven't been at fault in any of them changes that significantly. In their last monthly report they described the two incidents in detail and they were the fault of the human driver behind them and about as trivial as collisions get.

They're still worth mentioning though. A good human driver can anticipate those situations and minimize the risk. Eg. I will not hard break for a yellow if the driver behind me is tailgating me, I'm super aware of drivers coming out from side roads because some of them just assume that there isn't coming any cars because there usually isn't. Not that an AI cannot learn that, but they're not good in unknown situations.

Re: The Electric Car

#269
post #8

Earlier quoted context omitted.

I've always thought that the Google cars have driven 95%+ of their miles in Mountain View, CA where every single aspect of the roads have been digitized, tested and tweaked a million times over. If you stuck one of these cars in a brand new city, it wouldn't work nearly as well.

Mapping the roads isn't challenging. How do you think humans perform at driving through brand new cities?

I think there is a meta learning curve to driving in brand new cities. I have learned to not try to make missed exits, not speed so that I have time to process signs, tolerate wrong turns, not make unnecessary lane changes, and generally just pay attention. It's also generally safer to drive either in the day or well lighted areas. The only near screw up was trying to pass a car and realizing the rental had no mid end torque. The car in the left lane honked at me.

Re: The Electric Car

#270
Eeeeeee, coming from a country where average age of a car on the road is 10+ years, I would say absolutely no. And about fuel stations becoming less profitable and closing...how do you think stations survive in remote places of the world where there is very few cars? They increase their prices. And some of us will still gladly pay those prices,because we have to drive petrol/diesel powered cars(trucks are not going to be electric powered for a long time).
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