Magna Powertrain Inc

Magna Powertrain of America, Inc.

Sean A Steele

Adrian C Cioc

Myron Samila

Darrell F Greene

Richard Muizelaar

Jianwen Li

Dusan Milacic

David V Dorigo

Stephen Yang

Dennis T Loui

Ranjit Uppal

Andrew Kowalski

David Gelfand

David Dorigo

John Richard Sabo

Alberto Passos

Romulus Crisan

Tak Man Loui

Richard D Muizelaar

Adrian Constantin Cioc

A disconnectable differential assembly has a reduced axial length and a side gear disconnectable from an axle shaft via a clutch unit. Various components of the disconnect mechanism are axially aligned and concentric to reduce the axial length. An output hub splined on the axle shaft and is actuatable, via an axially shiftable armature, into toothed engagement with the side gear via respective axially extending teeth. The output hub and armature include radially extending flanges that are axially adjacent and radially aligned with the teeth so that force is transmitted to the teeth at the same diameter. A thrust bearing is disposed between the flanges so that the output hub rotates relative to the armature. The side gear is supported for rotation on the axle shaft, and a bearing is disposed radially therebetween to improve radial alignment of the second side gear with the output hub.

Disconnecting differential side gear mechanism

A locking pawl arrangement with a motion compliance mechanism for use with various automotive devices having a rotating hub with a plurality of teeth. There is provided a pawl that is moveable between a disengaged position wherein the pawl is not engaged with the rotating hub, an engaged positioned where the pawl is engaged with the hub and an intermediate position that is between the disengaged position and engaged position. A locking cam is in contact with the pawl and moves between a disengaged position, an engaged position, and an intermediate position against the pawl. There is further provided an actuator that is engageable with the locking cam. The actuator moves between a retracted position and an extended position, thereby causing the locking cam to move the pawl between the intermediate position, disengaged position and engaged position.

Solenoid actuated locking pawl with compliance mechanism

A selectable one-way clutch includes a clutch module and an electromagnetic actuator module. The electromagnetic actuator module includes an electromagnetic actuator and a strut assembly. The electromagnetic actuator having a coil assembly with a magnetic pole piece. The strut assembly having a strut and a magnetic armature mechanically interconnected to the strut for moving the strut between released and deployed positions in response to energization of the coil assembly. A contamination shroud is disposed between the armature and the pole piece to prevent collection of debris therebetween.

Selectable one-way coupling with debris containment

An electro-mechanical clutch apparatus includes a stationary member () having a center portion extending along an axis A and a stationary coil assembly () fixed about the center portion. A rotatable member () extends along the axis A and includes an annular projection () radially spaced from the coil assembly. A ratchet surface () presents a plurality of teeth disposed in axially aligned and radially spaced relationship with the annular projection. The rotatable member includes a magnetic pole piece () disposed in radially spaced and concentrically aligned relationship with said coil assembly. The rotatable member includes a locking member () pivotably attached to the annular projection and pivotable between an engaged position in engagement with one of the teeth in response to the coil assembly being de-energized and a released position displaced from engagement with the teeth and attracted towards the magnetic pole piece in response to the coil assembly being energized.

Electro-mechanical clutch apparatus

A one-way clutch having an anti-deployment feature operable to counteract hydraulic forces acting on the strut so as to assist in maintaining the strut in a non-deployed position.

Strut-type selectable clutch with hydraulic deployment prevention features

A clutch assembly includes an outer race presenting a plurality of outer ratchet teeth and an inner race presenting a plurality of outer ratchet teeth. A selectable one-way clutch includes at least one active strut pivotably supported by the outer race and at least one electromagnetic actuator. The electromagnetic actuator is selectively energized for effectuating pivoting of the active strut from an unlocked position wherein the active strut is disengaged from the outer ratchet teeth to a locked position for engaging one of the plurality of outer ratchet teeth during rotation of the inner race. The clutch assembly includes a lead frame assembly attached to the outer race and electrically connected to the at least one electromagnetic actuator for controlling selective energization of the at least one electromagnetic actuator.

Electronically-controlled selectable clutch assembly with clutch module having integrated safety switch

A bi-directional clutch assembly, method of construction thereof and method of setting a preset gap between a magnetically permeable core and armature thereof is provided, An outer race has inner ratchet teeth and an inner race has outer ratchet teeth. A passive one-way clutch has passive struts pivotally supported for locked engagement with the inner ratchet teeth in a first direction. A selectable one-way clutch has an active strut selectively pivotal from an unlocked position to a locked position for engaging the outer ratchet teeth during rotation of the inner race in a second direction opposite the first direction. A protrusion extends radially outwardly from the outer race and has an orifice extending therethrough. A coil is operably supported by the protrusion. The magnetically permeable core is operably fixed in the orifice to be magnetized by the coil to move the at least one active strut to the locked position.

Electronically-controlled selectable clutch with active strut module and methods of assembly and setting a magnetic gap thereof

A bi-directional clutch assembly includes an outer race presenting a plurality of inner ratchet teeth and an inner race presenting a plurality of outer ratchet teeth. A passive one-way clutch includes a plurality of passive struts supported by the inner race and pivotable into engaging relationships with the inner ratchet teeth during rotation of the inner race in a first direction. A selectable one-way reverse clutch includes at least one active strut supported by the outer race and selectively pivotable from an unlocked position to a locked position to engage one of the outer ratchet teeth during rotation of the inner race in the second direction. The passive struts are unevenly circumferentially spaced from one another along the inner race to establish an indexed relationship among the passive struts for staggering engagement of sequential passive struts with the inner ratchet teeth of the outer race.

Electronically-controlled selectable clutch with backlash arrangement

A starting system for a vehicle including an internal combustion engine having a crankshaft includes a pinion gear driven by a starter motor. A drive plate includes a set of teeth in constant meshed engagement with the pinion gear. A one-way clutch assembly is adapted to drivingly interconnect the drive plate and the crankshaft. The clutch assembly includes an inner race adapted to be fixed for rotation with the crankshaft, an outer race fixed for rotation with the drive plate, and a plurality of rollers positioned radially therebetween. One of the inner and outer races includes circumferentially spaced apart cam surfaces. The clutch assembly also includes a cage for positioning the rollers in a circumferentially spaced apart alignment with the cam surfaces and a roller bearing assembly positioned axially offset from the one-way clutch rollers to rotatably support the outer race on the inner race.

Torque transfer unit for an engine starting system

A selectable one-way clutch apparatus. The one-way clutch apparatus includes a first plate that has an inner surface that defines at least one compartment. A second plate has a ratchet surface aligned axially adjacent with the inner surface of the first plate and presents a plurality of teeth. Each of the compartments is divided into a strut section, an armature section and a core section. At least one electromagnetic actuator unit is received by the compartment. The electromagnetic actuator unit includes a coil assembly, an armature assembly that has at least one armature finger pivotally moveable in the armature section for movement toward and away from the coil assembly in response to the coil assembly being energized, and at least one strut that is pivotally moveable in the strut section for moving in response to engagement by the armature finger between a locked position and a released position.

Selectable one-way clutch apparatus

A one-way clutch assembly includes an inner race adapted to be fixed for rotation with a first rotatable member, an outer race having circumferentially spaced apart cam surfaces and being adapted to be fixed for rotation with a second rotatable member as well as a plurality of roller elements positioned therebetween. A plurality of circumferentially extending springs cooperate with the cage to align each roller element with the cam surfaces. The springs and cage urge the roller elements away from the inner race. A retaining mechanism captures lubricant in contact with the roller elements.

Sealed one way roller clutch

A clutch assembly includes an inner race, an outer race and a plurality of roller elements positioned radially therebetween. The clutch assembly also includes a cage assembly, a seal and a retaining ring. The cage assembly includes a skeleton coupled to a spring ring having a plurality of radially extending guides arranged to circumferentially space apart each roller element in alignment with cam surfaces formed on the outer race. The guides are resiliently deformable to allow concurrent engagement of each roller element with both the inner and outer races. The seal engages an inner surface of the outer race and an outer surface of the inner race, and is positioned axially outboard of the roller elements. The retaining ring is positioned within ring grooves formed on each of the inner and outer races to restrict movement of the cage.

Sealed high capacity overrunning roller clutch

A starting system for a hybrid vehicle includes a pinion gear driven by a starter motor and a drive plate having a set of teeth in constant meshed engagement with the pinion gear. A one-way clutch assembly drivingly interconnects the drive plate and an engine crankshaft and includes an inner race fixed for rotation with the crankshaft, an outer race coupled for rotation with the drive plate and a plurality of rollers positioned radially therebetween. The outer race includes a first set of teeth drivingly engaging a second set of teeth on the drive plate and arranged to allow the outer race to rotate about an axis misaligned with an axis of rotation of the drive plate. A spring engages the drive plate and the outer race to urge the first and second sets of teeth into alignment with one another.

One-way clutch and off-axis coupling for an engine starting system

A starting system for a hybrid vehicle includes an internal combustion engine having a crankshaft rotatably supported within an engine block. The starting system includes a pinion gear driven by a starter motor, a drive plate having a set of teeth in constant meshed engagement with the pinion gear, and a one-way clutch. The one-way clutch is adapted to selectively drivingly interconnect the drive plate and the crankshaft. The clutch includes an inner race adapted to be fixed for rotation with the crankshaft, an outer race coupled for rotation with the drive plate, and a plurality of roller elements positioned radially therebetween. A fastener couples the drive plate to the outer race and compresses an elastomeric damper between the drive plate and the outer race.

Growing community of inventors

Mississauga, Canada

Sean A Steele