Borgwarner Inc.

Exedy Globalparts Corporation

Michael W Campbell

Calahan B Campton

James Ronald Papania

Brett Peglowski

Scott Binder

James Detroyer

An assembly for power transmission between an output of a drive engine and an input of a transmission. The assembly includes a torque converter and a P2 module that are axially engage and retained for flexibility in assembling of the assembly. The P2 module including a clutch and an electric motor.

Integrated torque converter and P2 module

A permanently engaged starter system for use in a vehicle includes a duel-mass flywheel. The vehicle includes crankshaft, an engine block, and a transmission. The dual-mass flywheel includes an engine side primary, a transmission side primary mass, and a secondary mass. The permanently engaged starter system also includes a one-way clutch including an outer race disposed about the axis, and an inner race disposed about the axis and disposed between the outer race and the axis. The permanently engaged starter system additionally includes a ring gear rotatably coupled to one of the inner race and the outer race of the one-way clutch, with the other of the inner race and the outer race being rotatably coupled to the transmission side primary mass of the dual-mass flywheel. The one-way clutch is nested within the dual-mass flywheel with respect to the axis.

Permanently engaged starter system

A pawl clutch may include first member having at least one notch, and a second member. The first member and the second member may be configured to rotate relative to each other at a speed differential when the pawl clutch is disengaged. The pawl clutch may further include at least one pawl moveably retained to the second member and having a toe portion configured to engage the pawl clutch by engaging the notch of the first member. The toe portion of the pawl may have a chamfered edge configured to contact a corner of the notch to reject engagement of the pawl with the notch when the speed differential is above a threshold.

Pawl clutch with pawl rejection feature

A permanently engaged starter system for use in a vehicle, with the vehicle including a crankshaft and an engine block, includes a dual-mass flywheel and a permanently engaged starter assembly. The dual-mass flywheel extends along an axis and has an inner diameter portion disposed about and adjacent the axis and an outer diameter portion disposed about the axis such that the inner diameter portion is disposed between the outer diameter portion and the axis. The permanently engaged starter assembly includes a one-way clutch and a ring gear. The one-way clutch extends along the axis and includes an inner member disposed about the axis and an outer member disposed about the inner member. The ring gear is rotatably coupled to the one-way clutch and is adapted to be rotatably coupled to the outer diameter portion of the dual-mass flywheel through the one-way clutch.

Permanently engaged starter assembly

A hybrid-vehicle system includes an internal combustion engine configured to deliver a first rotational torque to a crankshaft. The first rotational torque is a maximum torque deliverable by the internal combustion engine. The hybrid-vehicle system also includes a transmission selectively rotatably coupled to the crankshaft, and an assembly including an electric machine rotatably coupled to the transmission and configured to deliver a second rotational torque directly to the transmission. The assembly also includes a one-way clutch configured to rotationally couple the crankshaft and the transmission. The assembly further includes a friction clutch moveable between an engaged state where the crankshaft and the transmission are rotationally coupled, and a disengaged state where the crankshaft and the transmission are rotationally decoupled. The friction clutch is further defined as a latching friction clutch.

Hybrid-vehicle system

A permanently engaged starter system for use in a vehicle includes a flex plate. The vehicle includes a crankshaft and an engine block. The flex plate extends along and is rotatable about an axis. The flex plate is adapted to be rotatably coupled to the crankshaft. The permanently engaged starter system also includes a one-way clutch including an outer and inner race. The permanently engaged starter system additionally includes a ring gear rotatably coupled to one of the inner race and the outer race of the one-way clutch. The permanently engaged starter system further includes a starter support plate, and a pilot support plate coupled to the ring gear. The pilot support plate is fixedly coupled to the starter support plate and is configured to axially and radially align and retain the ring gear and one of the inner race and the outer race with respect to the axis.

A permanently engaged starter system for use in a vehicle includes a dual-mass flywheel. The vehicle includes a crankshaft, an engine block, and a transmission. The dual-mass flywheel includes an engine side primary mass, a transmission side primary mass rotatably coupled to the engine side primary mass, and a secondary mass rotatably coupled to the transmission side primary mass. The permanently engaged starter system also includes a one-way clutch including an inner race disposed about the axis. The permanently engages starter system additionally includes a ring gear rotatably coupled to the inner race of the one-way clutch. The transmission side primary mass or the secondary mass of the dual-mass flywheel is configured to be an outer race for the one-way clutch.

A hybrid-vehicle system includes an internal combustion engine configured to deliver a first rotational torque to a crankshaft. The first rotational torque is a maximum torque deliverable by the internal combustion engine. The hybrid-vehicle system also includes a transmission selectively rotatably coupled to the crankshaft, and an assembly including an electric machine rotatably coupled to the transmission and configured to deliver a second rotational torque directly to the transmission. The assembly also includes a one-way clutch configured to rotationally couple the crankshaft and the transmission. The assembly further includes a friction clutch moveable between an engaged state where the crankshaft and the transmission are rotationally coupled, and a disengaged state where the crankshaft and the transmission are rotationally decoupled. In the engaged state, the friction clutch is limited to delivering 85% or less of the first rotational torque to the transmission.

A clutch () for selectively preventing rotatory movement of a cogged gear () about an axis may include an actuator () and a pivotally moveable pawl () that is interactive with the cogged gear (). A plunger () may be radially movable within and by the actuator (). A pair of axially spaced sidewalls () may include an opposed radially extending slot (). A pawl pusher () may be radially movable between the plunger () and the pawl (). The pawl pusher () may include a pair of axially extending wing portions () that may be slidably supported in one of the opposed slots () to limit movement of the pawl pusher () to radial, only. Axial and/or circumferential force loads transmitted to the pawl pusher () by the pawl () may not be transferred to the radially movable plunger ().

Sector clutch

A pawl clutch may include a first member having at least one notch, and a second member. The first member and the second member may be configured to rotate relative to each other at a speed differential when the pawl clutch is disengaged. The pawl clutch may further comprise at least one pawl moveably retained to the second member and configured to engage the pawl clutch by engaging the notch of the first member. The notch of the first member may have one of a chamfered edge and a concave edge.

A clutch system includes a clutch plate and a reservoir coupled with the clutch plate. The reservoir is configured to receive bailed excess fluid from the clutch upon rotation of the clutch plate. The clutch system also includes a hydraulic control valve fluidly coupled with the clutch plate and the reservoir. A first fluid flow path is defined between the reservoir and the clutch plate. Moreover, the hydraulic control valve includes an orifice fluidly coupled with the reservoir and a lube valve configured to move between a closed position and an open position. Additionally, a cavity is defined in the hydraulic control valve. Finally, the movement of the lube valve between the open position and the closed position is controlled using the fluid from the reservoir which flows though the orifice and into the cavity.

Passive wet clutch lube valve with a bailing system and transmission including the same

A low-backlash multimode clutch includes a one-way bearing allowing rotation in a first direction as well as a number of actuatable pawls in one race and a number of receiving slots having engagement faces in the other race. The engagement faces are tilted such that when the pawls are actuated, any torque applied in the first direction tends to force the pawls outward but the pawls are retained inward, such as by actuator rods. In this way, the one-way clutch may be selectively locked and unlocked with zero backlash against the one-way bearing.

Growing community of inventors

Royal Oak, MI, United States of America

Michael W Campbell