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BMW i3s traction control tech going in all BMW, Mini cars

The BMW i3s is essentially a warmed-up version of the i3 electric car we all know and love. The performance boost isn't huge — just 14 horsepower and 15 pound-feet of torque — but it also gets a new suspension, wheels and tires as well as an improved traction control system. We found the car to benefit from all the updates when we drove it for our First Drive Review, but now BMW has offered up more details on just how the traction control system of the i3s helps make it better to drive. The company says it'll expand the technology to all future BMW and Mini models as well. The i3s's system is calibrated to help it to pull away quickly from a stop, making full use of the instantaneous torque offered by the electric motor. It also improves stability when accelerating out of corners, when using regenerative braking and, of course, when the road conditions are less than ideal. The results are palpable, and with the other improvements the i3s definitely feels stronger off the line, as we found on our drive. It's also about a half-second quicker to 60 miles per hour, at 6.8 seconds. The secret is in the response time of the stability control, which BMW claims is 50 times faster than the conventional system. This is made possible by moving the control process into the powertrain itself, rather than a remote unit. This reduces the signal path and, thus, the response time of the traction control system. BMW's Head of Chassis Development, Peter Langen, said of it, "With their high levels of torque and instantaneous responses to every movement of the accelerator, electric motors already make significantly higher demands on driving stability systems than conventional power units." While engineered to make the most of the electric motor, BMW says the shorter cycles of this traction control system show promise for internal combustion vehicles as well. As such, we'll begin to see the improved technology applied across the BMW and Mini lineups going forward. Related Video:

2016 BMW X5 xDrive40e Review [w/video]

BMW is no stranger to electrification. The company put the world on notice with the launch of its innovative i sub-brand. But the lessons learned from the i3 and i8 aren't limited to these small-volume cars. The more mainstream X5 xDrive40e impresses with lessons learned from i, all without compromising the SUV's character. The combination of a 2.0-liter, turbocharged four-cylinder engine with an electric motor is good for 308 overall horsepower and 302 pound-feet of torque. Sure, 240 hp and 260 lb-ft come from the four-cylinder engine alone, but the electric motor – integrated within the ZF eight-speed automatic transmission's housing – chips in a maximum of 111 hp and 184 lb-ft of torque. The 9.2-kilowatt-hour lithium-ion battery can sock away enough electricity to drive up to 14 miles on a single charge and will recharge at your average 110-volt socket in about seven hours. Of course, the battery pack and electric motor are a big weight penalty. At 5,220 pounds, the xDrive40e is 430 pounds heavier than the standard xDrive35i. Still, the gas-electric powertrain hustles this husky X5 40e to 60 miles per hour in just 6.5 seconds, less than half a second slower than the 35i. The stopwatch figures are complemented by the best fuel economy of any gas-powered X5, at 56 miles per gallon equivalent and 24 mpg combined. Only the diesel X5 xDrive35d is more efficient, at 27 mpg. But achieving top fuel economy in the 40e isn't as simple as going easy on the throttle. Perhaps more than any vehicle we've tested recently, understanding how all the X5's systems work together is crucial to eking out the most mpgs. The xDrive40e's Drive Dynamics Control will be familiar to anyone that's driven a recent BMW. Eco Pro, Comfort (the default mode), and Sport make the same adjustments to the throttle response, steering weight, and dynamic damper firmness as they do in a standard X5. But in the xDrive40e, they also impact the way energy is recaptured. Comfort/Save offers the best blend of fuel efficiency while achieving maximum energy recapture. Sport mode's aggressive energy recovery is the fastest way to recharge the battery on the go. When it's working, there's a sensation similar to gently stepping on the brakes, though you actually aren't doing anything – this is a familiar experience to the way most EVs use regenerative braking. Comfort mode reduces this effect, and in turn how much energy is recaptured.

Senior VP Hildegard Wortmann says BMW's electric journey is just beginning

Anyone who questions BMW's effort or sincerity on electrified vehicles should have a chat with Hildegard Wortmann, the German automaker's senior vice president over product management for automobiles and aftersales. I was fortunate to do just that at the Detroit North American International Auto Show earlier this year. ABG: Where might BMW go with electrified vehicles beyond your i3 urban EV and i8 high-performance hybrid sports car? "That [regulatory] train has left the station" - Hildegard Wortmann HW: I think a big advantage is that we now have two bookends: BMW i [green] and BMW M [high performance]. We can use those bookends to foster the BMW brand in total. Are electrified vehicles the answer to CAFE and European regulations? Is that the future? We don't know, but that [regulatory] train has left the station. To achieve all of these regulations worldwide, there is no way to do it without electrification. That is why the activities of BMW i are not just to launch new products. They are our build-up in competence for learning and gaining experience in electrification. We will use those learnings for the total BMW brand. Technology-wise, we now have a really good understanding of what to do, what not to do, how to work with this and how to get a lot of learnings from the infrastructure and everything that goes with it. And depending on how quickly the market takes off, we can scale it and use it across the range. We will use the competence we will have in vehicle electrification for more than just BMW i. There will be other derivatives and electrification of other products. ABG: Do you see BMW offering pure EVs with larger batteries for greater range? HW: That's a big feature of the Tesla. The question is to find the best balance [of range vs. battery size, weight and cost]. On the i3, we tried to have the right balance between how much range customers need for daily driving and how much battery we put in there. The market will show us. We have over a million kilometers driven by consumers in the Mini E and ActiveE and a fairly good understanding that those people are not driving that much. Putting a really big battery with all that weight into a car that is meant for urban mobility does not make sense. ABG: What about extended-range EVs beyond the i3's optional small range extender engine? "This whole EV movement is in its very early stages." HW: This whole EV movement is in its very early stages.