Quote:
Originally Posted by bobbis1
You might have read through a lot of buzzwords- seems like the true new updates are
-new engine s68
-“updated” trans because of integrated motor but a little unclear if its just shorter ratios 1-3 (wonder if this was done for 0-60 w extra weight?)
-new dsc system branded as “Near-actuator wheel slip limitation“, this is also advertised on iX models without much info
-new “steering gear” (also wonder if this is weight or 48v related?)
But everything else seems identical mechanically. The one thing missing that was discussed as a credible potential is the 48v reliant active suspension bits seen on vw group cars.
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I wonder why they didn't use a higher output electric motor. For the first gen mild-hybrids they used a similar 12hp motor, but mounted to the belt, where it was not possible to use anything with more power, otherwise the belt would've slipped. But now if it's integrated into the transmission (i.e. mounted to the crank), they are missing out on many features. Mercedes' ISG has double the power and more torque.
The new DSC is actually quite interesting, the old one used wheel speed sensors, sent the data to the DSC module and then braked individual wheels. The new system sends them to the engine ECU, so it doesn't output more power than the wheels can handle in the first place. This means it won't brake individual wheels *after* it started slipping, but reduces power from the engine instead, *before* they start slipping.
New steering is definitely related to 48V, it allows for a higher application of steering torque in preparation for the Highway Assistant.