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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:

BMW recalls over 76k 2012-2014 models over brake failure

Bimmerfest is reporting that BMW has notified the National Highway Traffic Safety Administration of its intention to voluntarily recall more than 75,000 3 Series, 5 Series, X1, X3 and Z4 models due to a possible loss of power brake assist that could result in the vehicles failing to stop. The recall affects 2012-2014 models equipped with either the N20 or N26 engine produced from May 2012 to August 2013. Until recall repairs have been performed, BMW dealers will discontinue selling or delivering any affected vehicles in their inventories.
The problem has been traced to restricted oil supply from the intake camshaft to the brake vacuum pump, which may cause the brake vacuum pump to fail, resulting in a loss of power brake assist. While the hydraulic brakes will still function, the driver must much apply greater pedal pressure and the distance required to stop the vehicle will increase.
BMW has reported three minor accidents with no confirmed injuries. According to Bimmerfest, drivers who encounter a braking problem should "pull the emergency brake and apply as much brake pedal pressure as possible. If your BMW has an electronic parking brake pull up and hold the switch to engage the brake." Drivers should then park in a safe location and contact BMW Roadside Assistance.

BMW 3 Series eDrive plug-in hybrid spotted in development

BMW has shown its commitment to the development of hybrid and electric powertrains in recent years, with vehicles in its ActiveHybrid range, electrics like its BMW ActiveE and range-extended EVs like the i3 and i8. Plug-in hybrid-electric vehicles are clearly top-of-mind for the German automaker. We saw spy shots of the PHEV BMW X5 eDrive prototypes about a year ago, and now our shooters have come through with a 3 Series-bodied version of the technology, as well.
In addition to the obvious "Hybrid Test Vehicle" designation you see on the bodysides of this 3er, we also note that a second 'fuel cap' - presumably hiding the electric charge point - is in evidence. It's a fairly safe assumption that this 3 Series is making use of the same turbocharged four-cylinder engine and electric motor configuration that the X5 eDrive used. In the case of the X5, that meant a top electric-only speed of 75 miles per hour, with a range of just under 20 miles, and 0-62 mph in under 7 seconds. With considerably lighter, compact sedan bodywork clothing the PHEV drivetrain, we'd guess that the 3 Series eDrive could improve on each of those numbers.