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BMW looking to fix i3 acceleration problem uncovered by Consumer Reports

The BMW i3 has been hailed in some quarters as the future of electric mobility, what with its innovative carbon-fiber-reinforced plastic body and commitment to sustainable materials wherever possible. The modernist little hatch is even available with a 650cc two-cylinder gas engine with 34 horsepower to act as a range-extender for those who want it. However, that optional engine might have a drawback - at least for the moment.
Consumer Reports brought the problem to light when one of its drivers was behind the wheel of an i3 using the range-extender. When the driver attempted to pass another vehicle on a rolling, two-lane road, the BMW suddenly had no power to accelerate - a scary situation. CR started examining the car and found something pretty shocking: After driving at a constant speed for a while without any regenerative braking in range-extended mode, acceleration to 60 miles per hour plummeted from about 9 seconds normally to a staggering 27 to 40 seconds in their testing.
A BMW spokesperson told CR that it knows about the problem and has a fix coming next spring that also works on current models. The upgrade includes a state of charge indicator, a warning about loss of power and uses the car's navigation to boost the battery before driving on rolling terrain. It is not clear if the severe power deficiency will also eventually result in a recall.

BMW crushing ActiveE EVs, saving all batteries

It's unlikely to spark a movement and a movie, the way a certain EV1 did a decade ago, but anyone who's seen Who Killed The Electric Car? will likely cringe at this bit of news. Despite the fact that crushing and recycling old vehicles is standard operating procedure in the auto industry, when EVs are involved, it's always a touchy subject. The next phase will see "all of the lithium-ion batteries being repurposed for Battery Second Life research projects." So, what's the news? Well, the image you see above, which comes from the spotting of 16 smashed BMW ActiveE EVs on flatbed trailers on California Route 91 near Los Angeles, CA. EV advocate Chelsea Sexton told Green Car Reports, "It's all very deja vu, right down to [BMW's] DriveNow promotion as a don't-look-behind-the-curtain distraction – recall GM touting EV1s being donated to museums and universities? – and VINs spray painted on the sides, allowing former drivers to identify their own cars." BMW's take on this is that the ActiveEs were always meant to have a limited lifespan, and their time has come. As spokesman Dave Buchko tells AutoblogGreen, "The learning begun with the ActiveE will transition to the next phase with all of the lithium-ion batteries being repurposed for Battery Second Life research projects." (You can read his full statement below.) Originally, there were 700 ActiveEs leased to Electronauts (give or take). Yahoo! Autos points out that the ActiveEs were originally imported into the US as "pre-production" cars, which means they can't be sold, they can only be used for carsharing projects or re-leased. Eighty of those ActiveEs recently found a second life as vehicles in BMW's DriveNow carsharing fleet in San Francisco (bringing the total of ActiveEs in the program to 150) and "some have also been returned to Munich for additional research markets," Buchko said. The big picture here is that no one should be sad to see these cars go. Yes, they may have had some life left in them, but the rules say their time is done and everything is being done to crush responsibly in accordance with the law. Like Plug In Cars says, we're in a completely different era now than we were when GM crushed all those EV1s a decade ago. Instead of marking the end of a plug-in vehicle program, sending the ActiveEs away to be recycled is a symbol of the evolution and growth of BMW's i Project.

New BMW i3-like Visio.M EV concept uses lightweight resin

It's not a new version of the BMW i3, but an updated version of a lightweight concept car from SABIC, BMW, the Technical University of Munich, Daimler and others does bear a certain resemblance to the well-designed plug-in city car. From the black "glass" in the hatch to the angled line tail lights to the up-and-down window line, you can see a sort of family resemblance (see an i3 comparison photo here). And, of course, they both have an electric powertrain. But the changes made to the new lightweight urban electric concept vehicle is more of an exercise in what's possible rather than a way to evolve the i3 and i8 into a broader i family of vehicles. Even so, what we see here is interesting, since SABIC found all sorts of new ways to take weight out of the car as part of the Visio.M (Visionary Mobility) project, which was first announced in 2012. Let's start with the window material, which as you might guess from the quotation marks above, is not made of glass but is instead SABIC's Lexan polycarbonate (PC) resin plastic. The lower weight (the PC helps shed about 29 pounds) adds two miles of range while the PC resin has better thermal conductivity compared to glass and so does even more because the HVAC system can be more efficient. According to SABIC's computational fluid dynamics analysis, an extra 9-10 miles of range, in fact. Without the battery, this concept weighs just 992 pounds. Remember, BMW already made a lot of weight-reduction measures in the i3 thanks to carbon fiber reinforced plastic, so to make the "glass" lighter would only help boost efficiencies on a production vehicle that uses a resin like this. Read more below. SABIC's LEXAN™ resin delivers weight savings and thermal efficiency for new ultra-lightweight electric car concept developed by BMW-led Visio.M Consortium Munich, October 20, 2014 Today, at the Technical University of Munich (TUM), BMW, Daimler, TUM scientists and a consortium of industry participants showcased a lightweight urban electric concept vehicle with various advances, including an all-plastic design of the car's windows. The windows are made of LEXAN resin, a polycarbonate (PC) material, and coating technologies from SABIC, a leading developer of PC glazing for automotive windows and many other thermoplastic solutions for the automotive industry.