Valve integrated park inhibit solenoid assembly

摘要

A system for locking a Park device in a transmission in an out-of-Park mode of operation includes a valve body that defines a bore, a solenoid connected to the valve body, a lock feature disposed in the valve body and interconnected with the solenoid, and a servo piston disposed within the bore of the valve body. The servo piston has a detent and the servo piston is interconnected to the Park device and is moveable between a first position and a second position. The detent is radially aligned with the lock feature when the servo piston is in the first position. Activation of the solenoid locks the lock feature into the detent of the servo piston to lock the Park device of the transmission in the no-Park mode.

主权项

1. A system for locking a Park device in a transmission in a no-Park mode of operation, the system comprising:
a valve body that defines a bore; a solenoid connected to the valve body; a lock feature disposed in the valve body and interconnected with the solenoid; and a servo piston disposed within the bore of the valve body, the servo piston having a detent disposed on an outer surface of the servo piston, wherein the detent is shaped as a groove having an angled front face, wherein the servo piston is interconnected to the Park device and is moveable between a first position and a second position, wherein the detent is radially aligned with the lock feature when in the first position, and wherein the solenoid and the lock feature are coaxial and angled relative to the servo piston and activation of the solenoid locks the lock feature into the detent of the servo piston to lock the Park device of the transmission in the no-Park mode.