Friday, July 7, 2017

It's a bad week for Tesla fanboys.

So we learned this week that Tesla will start production of the Model 3 on time. That's a surprise for the company. That's also the end of the good news.
Tesla claimed they would produce 200,000 by the end of 2017. That figure has been revised down to 20,000 - 10% of what they promised. Which is largely what everyone with any common sense predicted, because there was no way Tesla was ever going to meet their target - they still don't have the capacity to build cars at the rate required to make those sorts of numbers. According to Tesla, the sales figure issue stems from a "severe production shortfall" of 100 kWh battery packs. This in turn is because their gigafactory is both late getting up to full speed, and running into production and QA issues in the parts of the factory that are operating (the gigafactory is a phased factory, meaning they're already in production at one end of the facility while the other end is still being built and fitted out). This is classic Tesla, with Musk personally overselling something and Tesla ending up under-delivering.
Add to that the increasing wariness about the Model 3 by both customers and the motoring press because at this late stage there are still no official photos or information of the production-ready version of the car. Pile on to that the sales figures released this week that show sales of the Model S are 'flat' and the Model X are 'declining' and the result of all of this is that the Tesla share price is down 20% from last week.
But wait! There's more!
The Model S just failed a crash test; the offset-frontal test is one of the most common accidents in almost every country in the world. It happens when cars turn across oncoming traffic and about 35% of the front of the car hits the same 35% of the front of the opposing car. This is the one test that every manufacturer wants to ace because it's so important and so common. It's been around in Europe since the late 1990s and the IIHS introduced it in America in 2012. Notable failures to date include the Dodge Challenger and Fiat 500.
The Model S was put through its paces and passed four of the crash tests but failed the critical offset-frontal crash, giving it a score rating of "acceptable" - which translates to a four star safety rating, not five. The reason was because the driver dummy smashed it's head on the steering wheel and driver's side A pillar, through the airbag, the front wheel shattered, and the brake caliper and rotor penetrated the passenger compartment.
So Tesla's stock price will likely drop a little more when the market opens on monday - how much nobody knows but don't be surprised if this drop totals 25% by the middle of next week. I'm not a stock-watcher but even in I know that when a company loses 20% of it's share price in a week, that's A Bad Thing.

Monday, June 26, 2017

Even racing drivers get red mist

If you didn't watch the F1 race from Baku yesterday, spoiler alert.
The face-off between Hamilton and Vettel yesterday demonstrates that even the best trained, fittest drivers at the top of their game suffer from red mist. Hamilton had been told to maintain 10 car lengths behind the safety car twice, and twice he didn't. Under the second safety car, he brake-checked Vettel (correction : telemetry would seem to indicate maybe he didn't), who then ran into the back of him and then made it so much worse by going around Hamilton and deliberately bumping wheels with him whilst giving him the finger.
Vettel got a ten second drive-through penalty - totally agree with that. But Hamilton got nothing for the brake-check (or the double safety car rule violation). In the end it didn't matter - Hamilton had to come in for a replacement cockpit bolster and once he came out behind Vettel, he lost his fire.
When it comes to dangerous driving, where do you draw the line in racing? Vettel risked both their cars when he deliberately bumped wheels with Hamilton. But then so did Hamilton with the brake-check and SC rules violation. In my mind, Hamilton should have been handed two separate penalties - the first for not maintaining proper distance from the safety car (twice), and the second for what he did to Vettel. (correction - maybe just the SC violation).
Apart from that, Baku was a good event again - I hope it stays on the F1 calendar.

Monday, June 12, 2017

Auto high beams

AHB, Auto high beams, high-beam assist - there's a dozen different ways car makers sell this particular driver aid and for the first time in years, it's something I'd actually want in a car. I was in England last week and had a rented car with auto high beams. On dark country roads and unlit sections of main roads, high beams are a must-have but you need to be on-point about dipping them when there's oncoming traffic. AHB systems do that for you. Rather than flick the light control between high and low, there's an intermediate setting for 'auto high' which dips the beams back to main headlights when the car senses something coming the other way (or the tail lights of the car in front) and then goes back to high beams automatically when the system considers it safe to do so.
This is a total godsend when driving on dark roads as you can concentrate on driving and not worry about dazzling oncoming drivers.
Long-time readers will know I'm not exactly the world's biggest fan of driver aids (I won't even get in a car with auto-braking and lane-change assist after that disastrous Volvo experience a couple of years ago). But AHB is something I'd actually want in a new car.
Side note: the owners manual on this particular car (Skoda Octavia) was less than useless when it came to explaining what the AHB system was. I had to figure it out by trial and error.

Monday, June 5, 2017

Drivers are prone to error, but so are coders.

I'm finding it difficult to understand why, in an era when so many people interact directly with software on a regular basis — and know first hand how temperamental and buggy it very often is — we are so uncritical of the idea of the driverless car.
People are fond of saying that most car accidents are the result of human error. Consider this : 100% of software defects are the result of human error. Untold thousands of person-hours have been spent building operating systems (both smartphone and desktop) and the programs that run on them: systems that have a prescribed set of machine-readable inputs. And still we get bugs, software updates that render our computers unusable, viruses and other malware, the Blue Screen Of Death, the Spinning Beachball Of Death, core dumps, system panics, and the rest of it. No one has shown us why we should believe that the software running driverless cars — where the set of possible inputs is much larger and much less predictable — would be any better.
A driver-augmentation system that helps with lanekeeping in a prepared environment? Sure. Heads-up displays to conserve and focus driver attention? You bet. Awareness-management systems that alert drivers to potential trouble? Absolutely — as long as that much-maligned but still miraculous human situational intelligence is there to quarterback the whole thing.
Here's a funny thing about driverless cars and safety: people talk about humans being inherently dangerous behind the wheel, but we know for a fact that not all humans are equally dangerous behind the wheel. Even better, we know which humans tend to be most dangerous behind the wheel — because insurance companies know it, and they convey that data to us in the form of the premiums they charge. By a significant margin, the most dangerous drivers — that is, the most expensive to insure — are young people in their 20's. Want safer roads? We could start by raising the minimum driving age or enforcing better driver training and stricter testing.
Software is written by humans that work for corporations. Delphi, Intel, Volvo, Google - it doesn't matter. Reality check: corporations are driven by the bottom line. I don't want to be sitting in a car knowing that the corporation behind the software hit some quarterly deadline by taking shortcuts to get something out the door to ensure the board got it's compensation and the shareholders got their dividends. This happens every day. That's the reality of driverless cars.
If my smart home thermostat has a bug in it, the house might be too cold or too hot, but it's has zero potential to kill me. That is simply not true when it comes to driverless cars.

Monday, May 29, 2017

Right of way is there for a reason

Right of way, or priority if you're American, is a basic driving concept that exists for a reason. For example when you're on a fast main road, you have right of way over people turning from side roads. You'd think it would be obvious but too many people today don't understand that.
Enter this Morgan 4/4 driver who, rather than wait in the central reservation for he traffic to pass, decided he had right of way instead and went on to cause a pretty substantial accident. The instant karma is so gratifying to watch.
Weirdly - and if you have any more info I'd like to know HOW this happened - the police apparently found the Peugeot driver to blame! Despite the Peugeot having right of way, despite the Morgan not looking, not giving way, not stopping in the designated area, despite the video evidence of it clearly being the Morgan's fault, somehow the police blamed the other driver.
This accident was 100% the Morgan driver's fault and the Peugeot driver should not be shouldering any of the blame or cost.

Monday, May 22, 2017

"Magic vision" wipers?

Sometimes car companies come out with stuff which is so bizarre you wonder if any common sense was involved at all. Mercedes are advertising their "Magic Vision" wiper system at the moment, which seems to have been designed by a committee of pedestrians rather than anyone who actually drives a car:

There's a couple of problems here.
The first, obviously, is that they only spray on the down-stroke, meaning the up-stroke will be a skipping, scratching, scraping bounce across a dry windshield.
The second is that there's now 50 nozzles to clog up with calcium instead of just two. The chances of all those sprayers working like they do in the video, in the real world, after a month of use, is zero.
Third, you're being locked into the MB parts chain. You can't go and replace your wiper blades with a better product from your local parts store. And blade/arm mechanisms with built-in sprayers? Yeah those will cost a bomb to replace.
But perhaps the biggest issue I have with this gimmick is that they think that the washer spray interrupts your view of the road, and that it's distracting. The wipers themselves are far more distracting than the washer spray. I hate driving in the rain with wipers going. Instead, I apply RainX to my windshield every couple of months. At any speed much above 20mph, the airflow across the windscreen clears the water off it. At motorway speeds, you barely even see the rain because it's blown up and off the screen so quickly as soon as it hits. On occasion I've been able to do 500 mile trips in the rain without ever once using my wipers.
So Mercedes - if you want to solve the distraction problem - figure out how to permanently treat a windshield with a water repellant what won't wear off. A bonded hydrophobic coating. THEN you'll solve this problem.