Thread: Active Steering
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      04-13-2007, 12:50 PM   #15
GregW / Oregon

Drives: 2015 M4 Coupe, 2012 ML350
Join Date: Nov 2005
Location: Lake Oswego, OR

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Originally Posted by E36325is View Post
Electric power steering pump is great, I don't think it will degrade steering feel like active steering, and it saves a couple of valuable hp, too.....
I beleive the BMW system uses sensors to detect the motion and torque of the steering column and a computer module applies assistive power via an electric motor. Itr's not just an electrically-powered hydraulic pump. This allows varying amounts of assistance to be applied depending on driving conditions. A switch or program can switch between different assist curves (boost curve) or like on Audis, Volkswagens & the BMW Z4, the amount of assistance is automatically regulated depending on vehicle speed. BMW makes reference to varying steering response be programmable with the MMode settings.

Greg Lake Oswego, Oregon, USA
2015 M4 Coupe - Silverstone/Sakhir/CF
2012 ML350