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Plug In 2014: BMW i DC Fast Charger is poised to change the EV game

It looks like it's just a blue box on a pole, but BMW's new i DC Fast Charger represents a much bigger deal than just the lowest-cost SAE Combo Charger on the market. BMW sees it as the key to getting more drivers into electric vehicles. As Robert Healey, the EV infrastructure manager for BMW of North America told us, "For [BMW], the future is clear. DC charging really is the future." "DC charging really is the future." – Robert Healey, BMW We spoke with Healey at the Plug-In 2014 conference in San Jose, CA last week about the promise of the new $6,548 DC fast charger. "The strategy is pretty simple," he said. "BMW wants to get as many DC Fast Chargers out there as possible. We're not in the charging business, we're in the EV business and to support the sales of our cars, we have identified some key areas: home charging, public charging and assistant services for EV drivers." That's why the first of the new blue boxes will be installed at the 285 i dealers in the US, many of whom already installed the cables needed for fast charging when they put in the Level 2 chargers, said BMW's Cliff Fietzek, manager of connected eMobility. Even if you haven't gotten a site ready for a DC fast charger, the installation costs for BMW's unit are lower because you don't need to pour concrete (for the wall unit) and the SAE Combo connector plug costs "significantly" less than the competing CHAdeMO plug, Fietzek said. One minor drawback to the BMW DC fast charger compared to the more expensive traditional, full-size DC fast chargers is that the 24kW BMW fast charger allows you to charge to 80 percent full in 30 minutes, while the bigger units can do the job in 20. The good news for EV drivers with SAE Combo cars (which, in the US, means the Chevy Spark EV and the VW e-Golf) is that any driver with a Combo plug car and a ChargePoint card will be able to use the BMW stations. In fact, BMW is talking with both GM and VW on where to install SAE Combo stations in the US so that there is minimal duplication of effort. In other places, BMW is working with other automakers, including Nissan, which uses a competing fast charging standard. "In Great Britain, we are installing triple chargers, the CHAdeMO, SAE Combo and the high-power, three-phase AC that can go up to 43 kW to support the Renault [EVs] and others," Fietzek said.

Is the skill of rev matching being lost to computers?

If the ability to drive a vehicle equipped with a manual gearbox is becoming a lost art, then the skill of being able to match revs on downshifts is the stuff they would teach at the automotive equivalent of the Shaolin Temple. The usefulness of rev matching in street driving is limited most of the time – aside from sounding cool and impressing your friends. But out on a race track or the occasional fast, windy road, its benefits are abundantly clear. While in motion, the engine speed and wheel speed of a vehicle with a manual transmission are kept in sync when the clutch is engaged (i.e. when the clutch pedal is not being pressed down). However, when changing gear, that mechanical link is severed briefly, and the synchronization between the motor and wheels is broken. When upshifting during acceleration, this isn't much of an issue, as there's typically not a huge disparity between engine speed and wheel speed as a car accelerates. Rev-matching downshifts is the stuff they would teach at the automotive equivalent of the Shaolin Temple. But when slowing down and downshifting – as you might do when approaching a corner at a high rate of speed – that gap of time caused by the disengagement of the clutch from the engine causes the revs to drop. Without bringing up the revs somehow to help the engine speed match the wheel speed in the gear you're about to use, you'll typically get a sudden jolt when re-engaging the clutch as physics brings everything back into sync. That jolt can be a big problem when you're moving along swiftly, causing instability or even a loss of traction, particularly in rear-wheel-drive cars. So the point of rev matching is to blip the throttle simultaneously as you downshift gears in order to bring the engine speed to a closer match with the wheel speed before you re-engage the clutch in that lower gear, in turn providing a much smoother downshift. When braking is thrown in, you get heel-toe downshifting, which involves some dexterity to use all three pedals at the same time with just two feet – clutch in, slow the car while revving, clutch out. However, even if you're aware of heel-toe technique and the basic elements of how to perform a rev match, perfecting it to the point of making it useful can be difficult.

BMW confirms limited i3 Electronaut Edition, says i5* is in development [UPDATE]

Jacob Harb, head of electric vehicle operations and strategy for BMW, is excited these days. He's got a lot to sort out as the company's first large-scale production electric vehicle, the i3. Extending Electronaut leases, arranging tens of thousands of EV test drives and making sure there will be enough of the little city cars in the US when customer deliveries will start in May. Oh, and he's already working on the next BMW EV, which we think is likely to be the i5. During the Detroit Auto Show this week, Harb declined to name the model (surprise) but he did tell AutoblogGreen, "You can probably take an educated guess at the next thought process, something a little bigger, maybe a little more range, relative to the i3. We've got everything trademarked and we're exploring the best, next iteration. It is coming. It's in development now." [See update below.] An i5 has been rumored for years, but Harb said he's flying to Munich next week to "start the discussions further" on BMW's next-gen EVs. The Electronaut Edition i3 is "a thank you to them for being part of this broad journey with us" - BMW's Jacob Harb But there's much more to do, given the upcoming i3 launch. For one thing, leases for the first participants in BMW's Active E electronaut program - which started in January 20121 - will end in the next week or so, and those who want to get an i3 – and an "overwhelming majority" have said they are interested - may get their leases extended so they don't have to revert back to a gas car in the meantime. BMW dealers will be able to start ordering the i3 in "the next few days" and the Active E Electronauts will get the first of those cars off the production line, "as a thank you to them for being part of this broad journey with us," Harb said. There will also be a special Electronaut Edition of the i3, that will be upgraded from the standard i3 at not cost. Harb wouldn't say what's different, just that the "options and features" will serve to identify the car from the outside. It will be "as unique and compelling as possible," he said, with details coming in the next few weeks. The i3 is already on sale in Europe, the company won't start making US-bound vehicles until March. Since there are no official i3 orders in the system yet, Harb didn't know exactly what the split will be between pure EV and the range extender version, but that his estimate is 50/50. He also wouldn't talk about production numbers, but did say that.