PRE-ENERGIZATION FOR POWER OPERATED DISCONNECT SYSTEMS

    公开(公告)号:US20250058650A1

    公开(公告)日:2025-02-20

    申请号:US18719467

    申请日:2022-12-15

    Inventor: Dusan Milacic

    Abstract: A method of controlling a secondary drivetrain of an electrically powered vehicle includes receiving a connect request for a disconnect mechanism, which includes a first and second clutch member. The second clutch member is biased to a disconnected state from the first clutch member and axially moveable into a connected state to transfer torque from an electric motor to the wheels. An initial current is applied to an actuator of the second clutch member, but the initial current does not overcome the bias on the second clutch member. The electric motor rotates the first clutch member such that a speed difference relative to the second clutch member is reduced below a threshold level. The method applies an additional current to the actuator, which overcomes the bias and connects the clutch members to transfer torque. The time to connect the clutch members is reduced because the initial current was already applied.

    Stamping press forming of outer diameter helical splines

    公开(公告)号:US11697149B2

    公开(公告)日:2023-07-11

    申请号:US17725691

    申请日:2022-04-21

    Inventor: Ronald Kubiak

    CPC classification number: B21K1/305

    Abstract: A press assembly for forming outer helical splines on a blank includes an upper press shoe assembly and a die shoe assembly. The upper press shoe assembly includes an upper rotatable portion rotatable relative to an upper stationary portion. The lower portion includes a lower rotatable portion rotatable relative to a lower stationary portion. The unfinished blank is supported by the lower portion, and the upper portion is moveable into engagement with the blank. The upper rotatable portion joins with the lower rotatable portion for conjoint rotation relative to the upper and lower stationary portions via upper and lower helical meshes defined between the rotatable and stationary portions. The helical meshes convert downward force into rotation and translation of the blank into a spline forming die of the lower stationary portion to create the outer helical splines.

    Selectable one-way clutch with electromagnetic actuator and direct-acting strut assembly having an active strut biasing arrangement

    公开(公告)号:US11078969B2

    公开(公告)日:2021-08-03

    申请号:US16249088

    申请日:2019-01-16

    Abstract: A controllable one-way clutch assembly having an actuator module with a direct action configuration provided between a linearly-moveable actuation component of a power-operated actuator and a pivotably moveable locking element. In particular, the actuator module is equipped with a solenoid having an energizeable coil assembly, a linearly-moveable plunger having a tip portion, a strut moveable in response to energization of the coil assembly from a released position to a locked position due to engagement with the tip portion of the plunger, and a strut biasing arrangement biasing the strut toward its released position. In addition, various strut/actuator interface arrangements are provided between the tip of the plunger of the solenoid actuator and the strut to control movement of the strut between its released and locked positions.

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