Showing posts with label battery. Show all posts
Showing posts with label battery. Show all posts

Strong US i3 Demand Expected, Says CEO Willisch


Predicting demand for electric vehicles has proven to be a difficult task. Both GM and Nissan had admit to not hitting their sales predictions when they first launched their respective electric vehicles. Tesla, on the other hand seems to have their sales constricted by battery supply issues and not by a lack of customer demand.

BMW has been very quiet with regard to talking about sales targets for the i3. It has been reported that BMW will have the ability to make 30,000 i3's per year and could possibly push that up to 40,000 if the demand warrants it. However that isn't right out of the gate. The first year of production will most certainly be much lower than 30,000 regardless of the demand.  Because everything about the i3 requires a completely new manufacturing process it's going to take a little while for BMW to work out any initial kinks in the assembly process. Plus, BMW can only make as many i3's as they get battery cells for. Yes BMW does assemble the battery pack in-house at their Landshut plant, but they do get the cells from a supplier (Samsung) and will be limited to what Samsung can supply.
The i3 battery pack consists of  8 modules, each consisting of 12 individual cells. Pictured above is one i3 module with an individual cell positioned in front.

Initial European orders have been very strong which is good for BMW and a good sign in general for the EV industry, but may squeeze i3 availability for the US market. BMW North American CEO Ludwig Willisch recently told the Automotive News that he believes BMW will sell every i3 allocated to US dealers and wouldn't comment on volume any more than saying  the US would get "more than a few thousand". In 2012, the first full year of US sales for the Volt and the LEAF, they sold 7,345 and 9,655 units respectively. The market for electric vehicles has matured a bit since then which is an advantage for the i3, but the i3 is also much more expensive than either the Volt or the LEAF so that will certainly be a sales-restricting factor in itself. Throw in the fact that we don't know how many i3's BMW can supply the US in the first year and it really is difficult to even guess how many will be sold in 2014. Maybe that's why Willisch and the others at BMW are reluctant to offer any real sales prediction other than to say "strong demand"; or perhaps it's because they watched Nissan and GM fall short and have to address their mistakes and eat a little crow. My guess is it's the latter.

DC Quick Charge: Better Than a Bigger Battery

A BMW i3 charges at the first public SAE CCS quick charge station open in the US. 



The first public DC quick charger in the US that uses the SAE-endorsed Combined Charging System (CCS) opened this week in San Diego, CA. It's located at the Fashion Valley Mall and uses a dual connector quick charger called a "Freedom Station" by EVgo.

The i3 will have a DC quick charge option that the customer can elect or pass on. The price has not been set yet but the speculation is it will cost somewhere between $750 and $1,000 extra. Having the option will allow you to recharge the car to 80% in about 20 minutes. This is an incredible advantage to have in an EV, since charging times are really what limit EVs like the i3 from being able to cover hundreds of miles without much inconvenience. Of course you can get an EV with a huge battery like the Tesla Model S which will allow you to drive a couple hundred miles between charges, but to be able to really cover long distances without much inconvenience, DC quick charge (or battery swap ability) is really needed. 

Standards War

SAE & CHAdeMO side by side
Tesla understands the absolute need for quick charging on pure electric vehicles and is rolling out their own network of DC quick chargers they call Superchargers. Since Tesla uses a proprietary connector nobody other than Tesla customers will be able to use their network. Nissan uses a different connector called CHAdeMO (short for CHArge de MOve or charge for moving) which was developed by Tempco (yeah, the power utility that runs the Fukushima nuclear power plant) for quick charging electric vehicles in Japan. When Nissan came out with the LEAF, the SAE hadn't yet endorsed a DC quick charge connector for the US so Nissan had no other option but to use the CHadeMO connector on the LEAF for quick charging, not that they wouldn't have anyway. Then, once the SAE endorsed the CCS connector, BMW, along with Audi, Chrysler, Daimler, Ford, GM, Porsche all agreed to use it on their plug in vehicles, when they eventually make them. I'm not going to go into why one is better than the other, or why some manufacturers chose one over the other here. There are plenty of articles on the internet that discuss this at nauseam; just do a simple search and you'll find them. I will say that I've talked with a few BMW engineers about this and they all basically told me there was no decision to be made. That the SAE CCS system is so technically superior to CHAdeMO, especially for future applications, that they wouldn't have even considered it. 

Personally, I really don't care which "standard" my EV has, as long as there are chargers out there for me to use. I've held both and even plugged both into cars and the SAE is a little lighter and less bulky and you only need a single charge port on the car so I tend to favor it, but honestly, I would be fine using CHAdeMO if there were chargers installed in my area and there aren't. At the i3 premier in July a BMW program manager asked me how much would I be willing to pay for the DC quick charge option. I suspect the price for the US market hadn't been finalized yet. My response was, "That depends" eliciting his curiosity. I followed it up by saying right now I won't pay a penny for a DC quick charge option because there are no chargers within driving distance of my home. However let's say there were a couple here and there in my general area, then I'd pay about $500 for it. And if there were a couple dozen of them in northern New Jersey I'd be willing to pay $1,000 for it. 

 
I know we are many years from having DC quick chargers in accessible, convenient locations like gas stations but I also believe that day will eventually come. The West Coast has a huge head start over the rest of the country and probably has as much as 70% of the Superchargers, ChadeMO and now CCS stations installed in the entire country. Plus, with the recent NRG settlement California will get 200 more DC quick charge stations, most being dual connector (CHAdeMO and CCS) units. Tesla currently has 24 Superchargers installed and an aggressive plan to cover the rest of the US in a few years. Nissan meanwhile has committed to installing hundreds of CHAdeMO stations in the US although they haven't delivered much on that promise yet. Outside of California's NRG settlement the future is unclear how and when we'll get the SAE CCS stations installed. Without any clear plan for the area you live in, I think it would be foolish to pay up to $1,000 for the option if you don't even know if you'll ever be able to use it. I have a friend that bought a LEAF in 2012 here in New Jersey and paid for the CHAdeMO option but nearly three years later he has never been able to use a CHAdeMO station because there are none within his range. 


I had the opportunity to talk with a BMW manager at the i3 premier about DC Quick charge infrastructure and one of the questions I asked was will the BMW i dealerships be required to install a DC quick charge station. I thought that would be a great way to at least begin the roll out of compatible DC quick chargers for the i3 so customers will at least have their local dealerships to fill up quickly at. They could also look for BMW i dealerships along the route of their long trips and since most dealerships are on highways, the locations would probably be good ones. Unfortunately that isn't going to happen. The dealers will not be required to install DC quick charge stations, but they will be "encouraged to." Personally I'd like to see BMW "encourage" them by offering to supply them with the DC charging station for free, as long as they pay to install, maintain it and have it available for use even when the dealership is closed. The dealerships will however be required to install multiple level 2 charging stations though which is a start, but really doesn't help out with longer road trips.

"Quick" Level 2 Charging

Is there such a thing as quick level 2 charging? While level 2 charging (240v) isn't necessarily quick, some cars do charge quicker than others. The Model S is the king (in the US at least) of L2 charging as it can charge at a rate of up to 20kW with optional dual onboard 10kW chargers. However the real L2 charging champ is only available in Europe. The Renault ZOE's onboard "Chameleon charger" can charge at up to 43kWs! On the other end of the spectrum is the Chevy Volt that is restricted to 3.3kW charging. However since the Volt has a much smaller battery than a Model S, it can actually fully charge in about the same time as a Model S can with it's massive 85kWh battery. The i3 will be able to charge at up to 7.4kW, and since it has only a 22kWh battery, it can fully charge in under 3 hours. This delivers a rate of about 30 miles of range per hour when charging from a 240v 30 amp level 2 charging station. That's a good improvement from my ActiveE, which returns only 15-18 miles of charge per hour. BMW is quick to point out how fast the i3's battery can be replenished while charging on L2, and while it is better than any non-Tesla EV here in the US, it still pales compared to the 80 miles of range you can get in 20 minutes on a DC quick charger.

Bigger battery vs DC quick charge 

The i3's 22kWh battery will allow for 80-100 miles or range in every day driving conditions, and up to 125 miles if the more efficient ECO-Pro+ driving mode is selected (Says BMW). So if range is so important, why not just slap a 40kWh battery in there and call it a day? The i3 would get about 200 miles of range and you wouldn't need quick charge, right? Wrong. Tesla uses enormous battery packs and they still realize they need a DC quick charge network to really make their electric cars viable to the broad public. Even with 200 to 300 mile range their customers want to be able to quickly recharge so they can drive long distances. The truth is, no matter how big your battery is and how far you can drive on a single charge, people will always want more range and quick charging. This is way BMW is offering the range extender on the i3. They know that it's going to take years for a comprehensive DC quick charge network to be built out, so until we have a robust infrastructure in place, the range extender will be a very popular option and will allow the owner to drive as far as they need on the few occasions they need to travel long distances. For daily use they won't use any gas, as the ~100 mile range should be more than enough for the vast majority of the time, yet they still have the flexibility of being able to cover hundreds of miles should the need arise. I believe the range extender becomes obsolete once we have adequate quick charge infrastructure in place. In fact, large Tesla-sized batteries won't be necessary either. Why carry the additional weight around and pay for a huge battery pack when you can use one half the size and just charge it quickly when the occasional need arises? The main reason EVs cost more than conventional powered vehicles is the cost of the battery pack. A smaller pack combined with readily available quick charge is clearly the way to go, however getting the infrastructure in place is the 800 lb gorilla in the room. It's not just going to happen without the support of the manufacturers. Tesla and Nissan seem to be doing their part, will BMW and the others that have signed up to use the SAE CCS standard do their part? Only time will tell.
 
The BMW EV infrastructure team was well represented at the grand opening event for the first public CCS quick charging station. Will they continue to be involved in assisting CCS station deployment, or wait by the sideline and watch?


BMW i3 Production Video Series

BMW released a four part video series which shows in great detail the construction process of the i3. From carbon fiber manufacturing, to battery pack construction and full vehicle assembly on the production line at Leipzig. It's rare that a manufacturer allows such a detailed look at how they make a car. There's over an hour of combined video in the four part series below. If you are an i3 enthusiast, or even just a car person, this is definitely worth watching.

BMW i3 Wheels: Efficient & Effective or Skinny & Skidding?

You get a better view of just how tall and thin the tires on the i3 without the body in place.
One of the features on the i3 that have had many BMW loyalists cringe when see them is the tires. They are tall and thin, and look more like you would expect them on a Toyota econo-box, than from the engineers in München.  The standard rubber on the i3 will be custom made for the car, low-rolling resistance 19-inch Bridgestone Ecopia tires, sized 155/70 R19. They are mounted on  featherweight 19" x 5" wheels, weighing only 15lbs. There will also be a 20" wheel option, but BMW hasn't disclosed the exact size of that wheel of the tires that they will mount on them. 


The stock 19" wheels
I suspect many potential i3 buyers will get past the thin, underwhelming look of the tires as long as they perform admirably. After all, they only look bad from the from or rear; when looking at them from the side it's difficult to see how thin they actually are. But what do I mean by perform admirably? That may be different for different people. Low rolling resistance tires typically aren't good for the "ultimate driving experience" the rubber is hard and doesn't usually offer premium grip for cornering. Sticky high performance tires usually deliver bad fuel economy because the rolling resistance is high. I suspect many i3 buyers will be most concerned with efficiency and range in which they would probably favor efficiency slightly over performance. But let's face it they still expect it to perform like a true BMW, and that's something BMW has promised will be the case with the i3. 

What may be the 20" optional wheels
When discussing the tall, narrow tires with Georg Kacher of Car Magazine, Ulrich Kranz of BMW said "It’s not rocket science. All that matters is the size of the contact patch. The 19-inch tires may be skinny, but their tall height generates the same contact patch as a low-section 16-inch MINI tire"  Kacher then went for a ride in a pre-production i3 and wrote this about the handling: "This is extraordinary. The i3’s most awesome dynamic talent is its incredible grip. The made to measure tires are about as narrow as those of a 125cc motorbike, yet they hang on almost as tenaciously as BMW’s latest DTM racer... The car zooms towards the apex, kisses the cobbles and flies out onto the short straight. There is very little lean considering the considerable pace, and I don’t recollect more than a faint trace of front end pitch and no yaw at all. This i3 appears to handle like the best BMWs."
 
The original i3 concept wheels
Then Michael Specht from the Automotive News wrote this after driving an i3 a couple days ago: 
"BMW's i3 electric car looks set to be a winner. I drove it recently and I can only say: Wow! Whoever drives this car will want one immediately. I can't remember when I was more surprised by a car's driving dynamics. One of BMW's marketing slogans is "sheer driving pleasure." BMW was keen that this should apply to the automaker's new electric vehicles sold under the "i" subbrand and the company has succeeded with the i3."


The i3 concept coupe's 20" wheels
However Autoblog had less than total praise for the i3's handling: "The test cars were fitted with skinny, rock-hard and low-rolling resistance 19-inch Bridgestone Ecopia tires, sized 155/70 R19. After just a single spirited lap of the set course in 93-mph v-max Comfort mode, it was clear that we were driving the i3 in a style for which it was never designed. If you try to make the i3 live up to the well-honed definition of "Ultimate Driving Machine," you are categorically missing the entire point of the i3." That's not what the majority of potential i3 buyers want to hear - me included. Don't tell me I'm missing the point if I buy a BMW and expect it to handle like a real BMW! I don't care what type of fuel it uses or whether it's a hatchback or sedan, it's a BMW!  However this is the only article I've seen that criticizes the handling and I've probably read about a dozen that have said they were impressed. The final verdict for me will be when I get behind the wheel of on myself and I urge everyone else to do the same thing. It's nice to see car reviews but let yourself be the judge when you are purchasing a car. After all, it's your money and you'll be driving it!

BMW has done everything they reasonably could to cut the weight of the i3. This allowed them to use a smaller battery and still get their tareted range of 80 to 100 miles with the i3.With the battery being the most expensive component of an EV by far, it's not surprising they are so obsessed with weight savings. However what is the perfect balance of efficiency and performance? No doubt the car would handle even better with wider, stickier tires on there which would need wider wheels, which would then weigh considerably more. Finding the perfect balance was BMW's task, it's just up to us to drive and enjoy the car. I hope they got this one right because the i3 won't be the Ultimate Driving EV if it isn't fun.

BMW i3 Press Release


BMW NA sent out a press release today titled " The Ultimate Driving Machine in a new era of mobility" It's a pretty comprehensive press release and a bit long to post in its entirety here so I'll provide the link HERE and let you read it direct. 

Some notable highlights:
~0-60mph in approximately 7 seconds (woo hoo!)
~The range extender has no effect on luggage capacity.
~Navigation system will be optional.
~The high-voltage battery consists of eight modules (each with 12 individual cells), which together produce a rated voltage of 360 volts.
~It achieved a .21 kilowatt hours per mile rating on the New European Driving Cycle (NEDC). This cycle is less strenuous than the EPA test. 
~The 22kWh battery weighs about 450lbs
~When plugged into a public DC fast-charging station (50 kW) it only takes about 20 minutes for the battery to reach 80 percent capacity.

A Look At The BMW i3 Instrumentation

The display featured on the concept i3. The production version is thought to be very similar to this.
The 2013 BMW i3 will be a revolutionary vehicle. It will be be the first mass produced car that has an aluminum frame and a body made just about entirely out of carbon fiber reinforced plastic. It will use a modern version of body-on-frame design with the aluminum drive module made completely separate from the passenger cell with the latter bolted and glued to the frame near the end of the production line. It will be the first all electric car that the BMW group offers for sale and it will be one of the most efficient vehicles ever offered for sale by any major automobile manufacturer.

It will also, have one of the most advanced and connected electronics and display systems. There hasn't been much written about the i3's electronics, but from the photo's that have been leaked so far, it is obvious BMW is working hard to make the driving experience custom tailored to then needs of an electric car driver. Built in navigation system that will list all charging station within your driving range and destination routing that even includes the part of your trip after you leave the car to use public transportation.

One thing that is interesting is there seems to be two numbers offered as the driving range based on your current state of charge, one that is based on normal driving and one based on the use of the Eco Pro mode which will reduce power to the motor and other energy using devices like cabin heating and cooling system. By doing so the car will use less energy and the range will be extended. The Eco Pro mode will undoubtedly give the car a less spirited driving experience, but when your cutting it close with your available range, believe me you will gladly trade off a bit of acceleration to make your destination. By displaying both estimated ranges, it will help the driver to decide which driving mode is best for that given destination.

Besides in car electronics, the i3 owner will have the ability to perform many functions in the car by the use of a smartphone. You'll be able to precondition the battery and cabin to the desired temperature. You'll be able to plug in a destination and the application will tell you if the car can make it there based on it's current state of charge or suggest charging stations to stop at along the route. It will also alert you once a pre-selected state of charge is attained. This can be very useful. Let's say you plugged in and then went off to run some errands while the car reached a certain state of charge necessary for you to make it home, the car will then send you a text message when that percentage is met, alerting you that it's safe to return to the car and begin your journey.














It going to be really interesting to see just what BMW is working on here, but judging from what is currently leaked, I'm thinking it will be pretty useful (and cool!).

To REx or Not To REx, That is The Question

The concept i3 sitting pretty in Chicago recently during a commercial shoot

In just about two years from now, you will be able to walk into any BMW showroom and drive away with an i3 electric car. It will be the first electric car BMW sells. Shortly thereafter, you will be able to buy that same i3, but with a gasoline engine range extender that BMW is calling REx, as an option. BMW hasn't commented on the cost of the REx option, but it's likely to be at least a few thousand dollars.

While I've really become a pure BEV guy, I have to admit I'm interested in the REx feature. Especially if the gasoline engine is very efficient. I would want the car to achieve at least 40mpg in REx mode, and preferably closer to 50 in order to seriously consider it.

There are also other factors that will influence my interest in the REx option. First, and most importantly, the range of the BEV i3 without REx. I'm beginning to get a little concerned about this because everything I have ever heard about the i3 pointed to at least a100 mile range. Now, at the official unveiling of the concept i3 the press is reporting a 80 to 100 mile range. Hmm. Red flag alert. I don't know why BMW would give the i3 a range less than 100 miles since they purposely made the MINI-E and the ActiveE have 100 mile ranges. Why go backwards now? BMW is a premium brand and the i3 will be a premium car with a premium price tag. In the EV world, there is nothing more premium than a greater range than your competition. I just hope BMW was just underselling the i3, basically doing the exact opposite that Nissan did by promising a 100 mile range for the LEAF and then delivering a 75 mile EV. If they state 80 to 100 miles and most people get 90+ miles during normal driving conditions then that's fine, but if you need to hypermile to get over 85 miles than I think they made a huge mistake. I'm probably just getting worked up about nothing. The folks over at BMW seem to really get it. I don't think they would make this big of a mistake. I've had many meetings and discussions with various members of the EV division and they all say 100 miles is the sweet spot, so we'll see..

Another factor in deciding if I want the REx option will be how much longer after the BEV i3 is introduced will the REx option be available. If we're talking a matter of months and the i3 really only has an 80 mile real world range, than I'd have to really consider waiting for it. However if at the i3 launch BMW still hasn't announced an availability date for the REx, then I doubt I'd even consider it.

Finally, the cost. I think I'd be willing to pay $2000 to $3,000 for the REx option, but definitely not more. Actually what I'd really wish BMW would offer is a larger battery pack option. How about 5 more kWh for the same $2000 to $3000? If that were available all this discussion would be moot. I'd buy the bigger battery in a heartbeat. Five more kWh would increase the cars range by 25 to 30 miles and for me, that would make it perfect. A 110 to 130 mile range BEV would cover virtually 100% of my daily driving needs and would end the discussion for a gasoline range extender. Anybody over at BMW listening???

BMW i3 Spotted Again During Hot Weather Testing


Autocar recently posted the latest pictures of an i3 during what is described as hot weather testing somewhere in Southern Europe. It would seem from the pictures the car had some kind of mechanical failure because they appear to be trying to recharge or 'jump' the 12 volt battery.

The car is still very well disguised and even the interior shots show they have everything covered to prevent anyone form getting real images of what they are working on, but a couple things do stand out. The steering column is long and really comes a long way from the dash, just like it does in the concept i3. The car also has basically the same display panels as the concept i3, with a small rectangular display on top of the steering column and a larger display in the center stack, however both had a fabric cover over them. After seeing changes in the body style in all the test cars for over a year, now every new set of spy photographs show the same thing, so I think it's safe to say they have the final production form decided. With the car 12 months away from it's rumored launch, I suspect they would have to have that set in stone by now so they can begin to get the production molds/stamps ready.

This is the first time I've seen a picture of the hood open. It shows what looks like a small storage area or 'frunk'. I've been told there will be some storage space under the front hood, but that it will be a small compartment. What I'm not sure about is whether the REx version will house the engine up there though, in which case the REx option would eliminate any storage space you may have in the frunk. It's also clear to see from the pictures the headlights are not production, and just there to make the test car street legal. The one thing I found particularly interesting in the photo I posted on the top was that it looks like the car may have a B-pillar. That is something I wasn't expecting as the concept didn't and the BMW program managers seemed to proudly talk about how the car was so easy to get in and out of without the need for a B-pillar. It's hard to tell and what I'm interpreting as the possible B-pillar may well be the weather stripping from the coach door seal so I'm going to hold off an saying the car does have a B-pillar until I get better photographic proof. You can click on the picture to enlarge it and tell me what you think.



How Much Would You Pay For An i3?

There are a lot of questions still unanswered about BMW's first production electric car, the i3. Various sources have reported it will launch in September 2013 as an 2014 model, and BMW has gradually released technical information like the battery size(22kWh's) the motor specs (130kw, 184 lb-ft torque, 170 hp) and dimensions (151" long, 60" high, 101" wheelbase and 2,756lbs). However the only thing anyone from BMW has said regarding the price is that it will cost "less than a BMW 5-Series sedan", which starts at about $48,000US.

Which brings us to this poll today. How much would you be willing to pay for a BMW i3? Before you answer the poll, please read the specifications of the other available and soon to be available electric cars. This may give you a better understanding of where the i3 fits into the electric vehicle scene.

BMW i3 ???
Four passenger hatchback to be sold 3rd quarter 2013 as a 2014 model.
130 kW motor: Top speed 93mph: 0-60 in under 8 seconds
Rear wheel drive; 7.7kW level 2 charging standard, SAE DC quick charge optional
Active liquid thermal management battery system
22kWh battery, Carbon fiber passenger cell & aluminum frame (dedicated EV platform)
Range: EPA 92 miles per charge (estimated)

Nissan LEAF $35,200(SV) $37,250(SL)
Five passenger hatchback currently available
80 kW motor: Top speed: 90mph: 0-60 9.9 sec
Front wheel drive; 3.3kW level 2 standard, CHAdeMO quick charge optional(standard on SL)
Passive thermal management system
24kWh battery, conventional construction(dedicated EV platform)
Range: EPA rated 73 miles per charge

Coda Sedan $37,250
Five passenger sedan currently available
100 kW motor: Top speed 85mph: 0-60 9.5 sec
Front wheel drive; 6.6kW level 2 standard, no DC quick charge option available
Active liquid thermal management system
31kWh battery, conventional construction(dedicated EV platform)
Range: EPA rated 88 miles per charge


Ford Focus Electric $39,995
Five Passenger hatchback currently available
100 kW motor: Top speed 84mph: 0-60 9.5 sec
Front wheel drive; 6.6kW level 2 charging standard, no DC quick charge option available
Active liquid thermal management battery system
23kWh battery, conventional construction (converted ICE platform)
Range: EPA rated 76 miles per charge

Tesla Model S $57,400
Five Passenger hatchback(with 2 optional rear-facing child seats) available early 2013
Motor and performance figured not available, but expected to be good.
Rear wheel drive;10kw level 2 charging standard, no DC quick charge option for 40kW base Model S
Active liquid thermal management battery system
40kW battery, EV platform: "skateboard" battery design & extensive use of aluminum to reduce weight.
Range: 125-130mile EPA rating (estimated)

As you can see, the i3 motor's power, charging rate, top speed, 0-60 and range is better than all the currently available EV's but will in all likelihood be less than that of the Tesla Model S 40kW once Tesla releases that information. I believe this points to the fair market value of the i3 to be somewhere between the Model S and the other less expensive EV's. I have therefore listed the poll pricing options to be in between the Model S and the others.

Please vote fairly. Obviously, everybody would like the price to be as low as possible, but I'm asking for you to vote for what you would pay based on what you think is a fair price in the market for the i3. In my opinion, there is absolutely no way the car will list for under $40,000 but I put that in a a choice anyway. Of course all these vehicles qualify for the $7,500 federal tax credit, so your final cost will be $7,500 less than the listed prices provided you qualify for the tax credit.





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