Abstract: A transmission control unit for a wedge clutch, comprising a controller configured to send one or more signals to a switch connected to the wedge clutch, the switch being configured to demagnetize the wedge clutch by sending current in a first direction to a coil of the wedge clutch.

Abstract: An arrangement for a multi-clutch assembly including a popoff valve is disclosed. The arrangement also includes a first clutch, a second clutch, and a spool valve assembly. Depending on the mode, the popoff valve either provides a flowpath for residual hydraulic fluid from a latching chamber of the spool valve assembly to a vent of the popoff valve, or provides a flowpath for supplying hydraulic fluid to the latching chamber of the spool valve assembly via a fluid connection from a supply inlet to a latch port of the popoff valve.

Abstract: An arrangement for a multi-clutch assembly including a popoff valve is disclosed. The arrangement also includes a first clutch, a second clutch, and a spool valve assembly. Depending on the mode, the popoff valve either provides a flowpath for residual hydraulic fluid from a latching chamber of the spool valve assembly to a vent of the popoff valve, or provides a flowpath for supplying hydraulic fluid to the latching chamber of the spool valve assembly via a fluid connection from a supply inlet to a latch port of the popoff valve.

Abstract: A transmission control unit for a wedge clutch, comprising a controller configured to send one or more signals to a switch connected to the wedge clutch, the switch being configured to demagnetize the wedge clutch by sending current in a first direction to a coil of the wedge clutch.

Abstract: A starter assembly including a starter and starting device. The starter includes: an electric motor including a motor shaft; an output shaft non-rotatably connected to the motor shaft; and a one-way clutch including a first race including an axially fixed pinion gear and a second race non-rotatably connected to the output shaft. The starting device includes a wrap spring clutch with first and second ends. For a start mode: the electric motor rotates the motor shaft and the pinion gear in a first circumferential direction; the pinion gear rotates the second end, with respect to the first end, in the first circumferential direction; and, the wrap spring clutch rotates a torque converter shell in the first circumferential direction. For a first phase of a release mode: the electric motor rotates the second race in a second circumferential direction; and the first race rotates in the second circumferential direction.

Abstract: A starter including: a housing; a motor shaft located within the housing; an electric motor located within the housing and arranged to rotate the motor shaft in first and second opposite circumferential directions about an axis of rotation; an output shaft non-rotatably connected to the motor shaft; and a one-way clutch including first and second races. The first race includes a pinion gear fixed with respect to axial movement, parallel to the axis of rotation, with respect to the housing and arranged to mesh with a ring gear. The second race is non-rotatably connected to the output shaft. For a start mode, the electric motor is arranged to rotate the motor shaft and the pinion gear in a first circumferential direction.