US 11,718,170 B2
Vehicle transmission with disconnect device for power take in
Kurt Cattoor, Koolkerke (BE); and Filip D. Schacht, Meulebeke (BE)
Assigned to Dana Belgium N.V., Bruges (BE)
Filed by Dana Belgium N.V., Flanders (BE)
Filed on Nov. 30, 2021, as Appl. No. 17/538,840.
Prior Publication US 2023/0166591 A1, Jun. 1, 2023
Int. Cl. B60K 17/354 (2006.01); B60K 6/387 (2007.10); F16D 25/10 (2006.01); F16D 48/02 (2006.01); F15B 15/20 (2006.01); F16D 25/061 (2006.01); F16D 127/02 (2012.01); F16D 121/04 (2012.01); B60K 6/00 (2006.01); B60K 6/48 (2007.10); F16D 11/00 (2006.01)
CPC B60K 6/387 (2013.01) [B60K 17/354 (2013.01); F15B 15/20 (2013.01); F16D 25/061 (2013.01); F16D 25/10 (2013.01); F16D 25/14 (2013.01); B60K 6/00 (2013.01); B60K 6/48 (2013.01); B60K 2006/4825 (2013.01); B60Y 2200/91 (2013.01); B60Y 2200/92 (2013.01); B60Y 2400/421 (2013.01); F15B 2211/6306 (2013.01); F16D 11/00 (2013.01); F16D 2011/002 (2013.01); F16D 2121/04 (2013.01); F16D 2127/02 (2013.01); F16D 2300/14 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A vehicle transmission, comprising:
a motive power source input interface configured to mechanically couple to a motive power source;
a motor input interface configured to mechanically couple to an electric or hydraulic motor;
a disconnect device releasably mechanically coupling the electric or hydraulic motor to the vehicle transmission, wherein the disconnect device is hydraulically actuated; and
a hydraulic actuation system including a hydraulic actuator coupled to a splined sleeve;
wherein the hydraulic actuator includes a piston with a hydraulic cavity therein that is profiled to mate with a pin to guide axial movement of the piston;
wherein, in an engaged configuration of the hydraulic actuator, a hydraulic pressure maintains a hydraulic cylinder in an engaged position and a spring exerts a return force on the hydraulic cylinder;
wherein the hydraulic actuation system is in fluidic communication with a hydraulic assembly driven by an internal combustion engine or a traction motor; and
wherein responsive to a hydraulic pressure in the hydraulic assembly decreasing below a disconnect threshold value, a selector valve in the hydraulic actuation system changes to a disengagement state that initiates the transition of the hydraulic actuator from the engaged configuration to the disengaged configuration.