cars


Self driving cars – The concept of electric opens the way

I attended a lovely wedding on Friday. It was one that I did not really know anyone at, except @elemming of course. We drove to Chorley Wood, but took the petrol car as it was about 100 mile round trip. The Leaf could make it with a splash and dash charge, but it was not worth the extra hassle. We sat in a very long M25 traffic jam getting there, 50 mile in 2 hours. Coming home late that night the M3 was closed for roadworks so we had a bit of detour to Reading in order to get back to Basingstoke. That experience is a very common one on our road system here in the UK. Petrol guzzling engine blocks sat almost motionless in a long queue. As I sat in the jam I thought how the electric Leaf would not be using any power at all sat still, but also that if all these cars were computer controlled there would be no jam, as efficient network algorithms would get us all where we needed to go, as long as everything was able to talk to everything else.
Oddly, we gave some people a lift form the church to the reception. In the few minutes drive our electric car came up in conversation. People are still intrigued, it is still early adopter territory, but in a well understood space. How does it work, how much does it cost, are they really that fast? etc. I am a tech evangelist so I love sharing this sort of information.
Nissan #leaf under the bonnet
The subject of Tesla came up too. Elon Musk and his wide ranging and World changing innovations became the topic of the continuing chat. In particular we talked about self driving cars. It was talked about, not in a laughing at the concept way, but in a how long before they do. I mentioned the fact that Tesla’s were already patched over the air, like an iPhone app would be, and had some basic extensions applied to them to enable self driving features. Once again this did not seem odd to anyone in the car.
It seems that the reality of an electric car, real people owning real ones and using them, makes a dent in the automobile paradigm. It’s electric, therefore it is probably all ‘computery’ and of course it will be on the Internet as a composite Internet of Things device. That may be a terminology step to far for someone not in the industry, but the principle is there in people’s minds.
A petrol car is stuck, tethered to a petrol pump, constantly pouring pounds into it. It is heavy and lumbering, resistant to change. It is like a telephone box on the street. The electric car is more like a wifi enabled, 4G smartphone. It can do way more than just make calls. After all if you are going to completely change how a vehicle works, and see that it does, why not change everything else around it, including who drives it.
This morning on the BBC news Ford were at the Mobile World Congress. They were explaining they were not longer just a car maker, but a platform maker. When asked when they would have full self driving cars the answer was that they already have some assistance features (which are like the Tesla) and that they had not set a date for a Level 4 fully autonomous vehicle yet, but when they did it would be mass market.
It was the first time I had heard the term Level 4. Wikipedia came to my aid on this one.
From https://en.wikipedia.org/wiki/Autonomous_car

In the United States, the National Highway Traffic Safety Administration (NHTSA) has proposed a formal classification system:[14]

Level 0: The driver completely controls the vehicle at all times.
Level 1: Individual vehicle controls are automated, such as electronic stability control or automatic braking.
Level 2: At least two controls can be automated in unison, such as adaptive cruise control in combination with lane keeping.
Level 3: The driver can fully cede control of all safety-critical functions in certain conditions. The car senses when conditions require the driver to retake control and provides a “sufficiently comfortable transition time” for the driver to do so. Example: Tesla Model S
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.
An alternative classification system based on five different levels (ranging from driver assistance to fully automated systems) has been published by SAE, an automotive standardisation body.

It is interesting that we have such a leap in levels. The move from 3 to 4 is huge if you think about it. If we were starting the road system from scratch now, we might just dive into Level 4. Dedicated lanes, less complexity and adversity for the computers to have to cope with. Now though we have a mixed system. Any level 4 car will have to cope with all the existing Level 0 drivers and a world built for them. e.g. a full Level 4 system would not need traffic lights. Cars could interleave at junctions with an automated flow system.

As you can see just form a wikipedia article, even the standardisation of the level numbers has not occurred. How and where the massive automotive corporations are going to collaborate on communications standards across the vehicles is going to be interesting. The pressure on the software industry to create realtime systems that do not fail at all is also going to be high. All our computers, phones etc crash. They need a reboot here and there. That doesn’t matter so much sat at your desk, but in a car hurtling at 70mph+ in an environment where lots of the other cars are still Level 0 and have human driver quirks to deal, and not having any software problems and actually crashing with is no mean feat.

As a long time software engineer, we used to have a long lead time in testing. Once deployed changes tweaks did not happen. Fixes were bundled and applied to big central systems but you tended to have to get it correct first time. Now we are in a permanent patch environment. This is great as things can improve over time, but also it can cause an attitude in engineering and the pressures to hit deadlines, that it is OK we can patch it later over the Internet.

I wonder what is going to happen to the automotive industry, and the things around it. The diversity of car design, engine performance and general handling all feature heavily in shows like Top Gear and whatever Amazon’s reboot of it will be called. If our vehicles just become self driving taxis will we still try and show off our design choices and apparent status with them. Will a custom car be nothing more than a large iPhone case? There are some huge social implications in how we feel about cars and what we do in them. A car will be an office, full attention can be given to phone calls or emails, maybe even just donning you VR headset for a virtual meeting on a nice simulated desert island rather than watch the motorway sidings zoom past.

It is definitely an area that will impact all our lives and is another exciting, and slightly scary one to consider.

From ICE to EV – Test driving Nissan Leaf

Just before Christmas my Subaru Impreza had a seemingly catastrophic coolant problem. I arrived at my school governor training (4 miles away) in a cloud of steam from my bonnet. The car needed a low loader to get it home, but all that took a while, so it was lucky I had the course to attend.
We had been considering a new car. We have a Honda FRV with has 6 seats and loads of room, is automatic etc. Then we have my scooby which doesn’t really get the chance to get used as much. as I work from home almost all the time most of my journeys are to take @elemming to the train station and pick her up. Driving to the supermarket or shops and most importantly heading off to Choi. All of which are about 6miles round trip.
I have an interest in tech of course, so electric vehicles (EV’s) always sounded interesting but there is a problem with causing the entire family to be early adopters if it is just for the sake of early adopting and spending significant money.
We had looked at normal Internal Combustion Engine cars (ICE). All very nice, but very few things were going to be as close to my driving experience with the Scooby. Hence all the new cars I figured would disappoint in some way. I have had the scooby since before predlet 1.0 was born so that’s 11 years. So it has seen some major changes in life, predlets born, leaving corporate life, moving house, taking up a martial art etc. It has also been very reliable. However things have to move on.
We took a punt and test drove a Nissan Leaf. This was particularly good test drive wise as they gave it to us for 7 days. Having an EV for a week gives you a chance to see if it really does fit the in with the family and out needs. It let me do some experiments too.

The first objection most people have to an EV is the range. Unless you buy a £100k Tesla you are going to be getting a car that has a 100 mile range, a 50 mile round trip. When you are used to 250-350 miles in an ICE that seems not great. However, remember I only needed this for the short 6 mile round trips. You can get a lot of those on 100 miles of battery, plus they return home, where a recharge can occur is need be. In addition we already still have a petrol Honda FRV for those long journeys. So really the range is only a problem if the other car is in use and one of us need to do a longer range journey. If this situation is going to occur is can be planned for as many EV suppliers offer petrol hire cars as part of the package. Of course this is assuming you couldn’t charge on a journey. Which you can.
So on these short hops locally an EV is ideal. It has plenty of charge and plenty of scope to just jump in and use it.
One of my concerns that any car would just not be as entertaining as my Scooby was kicked right into touch straight away. Even a relatively low end car like the Leaf has a fantastic feel to it. They feel very light, in a responsive lightness not a flimsy lightness. They also accelerate. The 0-60 on the Leaf is abut 7.5 seconds. My Scooby was about 5.9 when it was new. However… the profile of an EV means it has constant torque through the entire range. There is no specific gearing. Even a ICE automatic changes gear, or has kick down to accelerate. The Leaf just accelerates, whatever speed its goes. Without the engine noise it, and very little road or air noise the speedometer is really the only indication of speed. You hit 50, 60 and 70 very quickly on the motorway, but once at them the speed almost feel the same. This is a good thing, it means cruising at any speed is easy and acceptable. You are not between gears or struggling to justify the 5th gear change.
My drive to Hedge End I did firstly just normally in regular drive mode having not topped the car up after the station and school run. So I was on about 85/90% battery. So I very quickly experienced the anxiety that all EV driver get. In ICE you have a petrol needle, its not very accurate but you know you have a few miles left after any warning light or hitting the red. Up until that point you just drive. The you maybe have to eek it out a bit more to make it to home or a petrol station. In the EV you have a lot of information, accurate information, telling you battery levels, power usage and estimated range. If you hit the aircon/heating and floor the accelerator on the motorway you see you project range tumble. The climate control knocks 7 miles off the range. I realised I was burning too much as I reach what would have been a half way point and headed for home, this time with the eco button and full mode B energy recovery. I approached home and the warning lights started flashing. I only had 15 miles left of range. Panic!. The sat nav asked if I needed directions to a charger! PANIC!!!
Of course this is all slightly ridiculous as by now I am 3 miles from home. Even with climate control on full I would make it, but it does play on your brain.
The next day I thought I would try the same journey but top up to 100% at home before I went. Home charging is just plugging into a 13 amp plug (though you can install higher rate quicker chargers for a few hundred pounds). It means if you go to a friends house and need a top up you can (though thats a bit cheeky, I am not sure we have the social etiquette for that sorted out yet)
This time I drove on the motorway back down to the south coast on full Eco (where the max power is dropped and the effects of the throttle are lessened) and mode B where more engine braking is applied when you ease off and the battery is charged with that power.

So we have the simplicity of just putting in drive and pressing the accelerator, but we have the complexity and thought of energy management and recovery. Easing off before coming to halt to get your green lights lit on the left of what would be a rev counter.
I got to the same point with plenty of return charge but still drove back on Eco. Because of the perceived speed it didn’t seem to matter in a cruise on the motorway to have turned the wick down on the car. The energy management and recovery made for fun game. Something Nissan have spotted by rewarding you with a christmas tree/lives indicator that gradually fills up as you do good work. It sounds mad but it works.
I managed to max it out on one journey- Yay !

On the second Hedge End trip I was slightly less freaked out by the battery indicator but as I got to Winchester services, and as the car had an Ecotricity card in the sunglasses holder I thought I would try a rapid top up charge.
There were 2 bays both without cars in them, so it fitted to experiment. I held the RFID card up and chose my rapid charge mode. The nozzle comes with the plug, it was a massive device compared to the home charger as it had lots of sliders and locks. Once engaged charging started.


I was on about 33% and went for a coffee and a comfort break. It was about 15 minutes and I was not waiting around tutting.
I was impressed that Costa reminded me I was driving a leaf and had my little Eco xmas tree game to play in the car by drawing on the top of my coffee with a similar motif.

I returned to the car, went to cancel the charge and it asked me to swipe the card again. This of course makes sense to stop people unplugging you out of spite. I disconnected and saw I now had 66% charge (64% when I took the photo and faffed around before hand). Not bad!

So for the 10 miles home I dropped the eco and the full energy recovery. Pulling onto the motorway it was like having a brand new car as it woke up from its space cruising stasis and went full alien monster.
When I got home I had used 20% of the battery already. So it really hits home how to moderate driving when needed, not accelerate quick so hard. Much more so than a petrol car that you don’t really think about it much until the needle gets low.
One of the other gadgets on the Leaf is is great set of cameras surrounding the car. The dash display that doubles as the GPS, radio and everything else switches to cameras automatically for reversing, but also can be switched to camera when at low speed/ stationery heading forwards.
A reversing camera makes a lot of sense, but also the ability for it to generate an apparent birds eye view is fantastic for parking in bays.
Here I am safely parked and stationary with the forward camera working. It is in black and white as it is in night sight mode. You can see in the dark

The birdseye view can be replaced with a camera on the front left quarter, i.e. the turning blind spot, by pressing a button.
Reversing also provides the angle of trajectory super imposed Augmented Reality style on the reversing camera. Here I a parked but in reverse on out drive way showing the obstacles (in colour this time)

We had a top of the range Leaf so it had everything on it. A spoiler with a solar panel to charge the second battery (a regular car battery used for lights etc). Voice control, bluetooth hook up, it understood my iPhone playlists when plugged into the USB, heated seats etc etc. It had GPS builtin and knew where a particular network of chargers were to navigate too. Full ownership gets you hooked up (along with your charger) to CARWINGS, which is Nissan’s internet of things network for automotive. This lets you control the car setting via an app, asking it to warm up in the interior in the morning. Or you can, as I did, just use the timer. When on charge it will draw house electricity to power the AC and warm the car for a set time and temperature. There is of course no point going out and starting the engine as it doesn’t heat up like and ICE.
I enjoyed looking at the energy information screen quite a lot. It felt like playing Elite Dangerous or Eve Online balancing the power usage.

I also was entertained by the graphic for the “don’t put a baby seat in the front” which was the most extreme one I had seen. The middle picture almost looking like a theme park ride icon.

So it seems that I am quite taken with the Leaf, it has a very particular set of skills 😉
We are going to test drive the BMW I3, though that offers a range extender, a motorbike engine and 9l tank to give another 50 or so miles. However I am not sure if that is worth us getting as it would almost never be used except in extreme circumstances when it might better to hire a car or take the train. Also BMW only seem to offer a 30 min test drive, and after that if they think you are worthy a few hours test drive. Our nearest BMW dealer is in Eastleigh too which is a pain. However BMW, and all car people you need to ramp up the test-drive time!
Lets see what happens next 🙂

The Spirit of Top Gear – Geek Jazz

On my birthday trip out we all popped along to the National Motor Museum at Beaulieu. It now has a special exhibit which is the contains many of the results of the Top Gear challenges.
I find Top Gear both hilarious and inspirational, and being a moderate petrol head its also a good subject matter.
Seeing the fruits of the production teams labour shows some brilliant, but deliberately flawed ideas.
Two fronted top gear car
Everything tends to “not go quite as we expected”. Which is of course the sort of thing you would expect like bolting the two fronts of cars together to make it easier to get away in reverse as above.
Its all brilliantly visual, but any techs out there know that this sort of mad idea and bolting together of things that shouldn’t be bolted together goes on all the time in software, you just can’t see it.
Many a time I have seen a project strap the software equivalent of a Reliant Robin to a large rocket on a tight budget in order to emulate the space shuttle.
top gear cars
Of course the spirit of engineering is to know when to smash things with a hammer and when added strength and design. Top Gear deliberately makes sure they tip the wrong side or working for comedy effect.
The cascade of constant changes and challenges their set piece projects face also mirror what we see all the time. Make something for one purpose and then a hand delivers a new envelope which is sort of what it was meant to do but requires a bit more hacking and bodging on top.
I shouldn’t delve too deeply in the clever approach they have developed, it ruins the magic and the humour.
Top Gear Geekage
More snaps of some of the pieces here
There is of course a production team hard at work for these guys, whilst they generally shun the sort of tech I deal with on a daily basis they are in fact geeks cut from the same cloth as the rest of us.
In order to hack and bodge things you do actually have to know how to to things properly in the first place, its kind of like Jazz, you need to be a skilled musician to improvise.

Tweetups, random combinations, overland2oz

Last night was the second running of the Southampton Tuesday Tweetup and it was interesting to pop along to somewhere relatively local to meet a set of people who happen to use twitter and happen to be near Southampton.
Unlike most other gathering and conferences what actually happens is that the collection of people there are inevitably very diverse. It is not one industry, one hobby or one subject. So whilst I point out that online “everywhere is local” that means it is easy to reach like minded people, on your chosen subject.
The tweetup brings people with a certain attitude to life together, and hence they are an affinity group, but also it collides worlds. I met a lot of great people last night and we talked about lots of things but one example to highlight in particular occurred just as I was heading for the train home.
I view myself as a bit of an explorer, finding new things and new technology, boldly going….. etc. However I had to ask one person last night why they had a map in their hand. Which led to hearing about something worth sharing here.
It turns out that Fiona Easterby is going to drive overland to Australia in a VW Beetle/Baja Bug in a few weeks time. This meant I could not dash for the train after all I had to hear the story. In particular because at some point on my wish list of ambition I would love to do a rally raid, like the Dakar through remote parts of the world. I had hit many of my mini ambitions, patents, Guinness book of world records, moderately famous for doing something to name a few.
Here though at a random gathering of people was someone who had already done two significant drives and was about to do another.
Fiona is using this to also raise money for charity and her website has the links for the donations
We also got to see Fiona’s Sebring SX and hear the wonderful engine note as she pulled away
Sebring SX

So I know that everyone who talked to @Overland2Oz will be wishing her the best of luck in her journey. Who knows the next journey might end up with a Feeding Edge logo on the side as sponsorship.