Patent ID: 8234954
Filing Date: 2012-08-07
Classification: B60K,F16H,Y02T,Y10T

Abstract:
1. A transmission comprising: a transmission casing; a housing extending radially within the transmission casing and nonrotatable with respect to the transmission casing; wherein the housing extends radially into contact with the transmission casing; a motor assembly having a rotor and a stationary portion surrounding the rotor; a torque-transmitting mechanism having a set of clutch plates; wherein the stationary portion and the set of clutch plates of the torque-transmitting mechanism are both supported within the transmission casing by the housing; wherein the housing extends axially to support the rotor for rotation relative to the housing; an annular ring radially surrounding the housing and positioned between the housing and the transmission casing; wherein the transmission casing is a first material with a first rate of thermal expansion; and wherein the stationary portion and the housing are a second material with a second rate of thermal expansion less than the first rate of thermal expansion; the housing and the annular ring thereby functioning to stabilize the stationary portion within the transmission casing.