Abstract:
A number of variations may include a method of assembly of a rotor and a stator having a concentric air gap in an electric motor comprising: providing inflatable gap support tooling in a deflated state in an air gap between a rotor and a stator; filling the inflatable gap support tooling with a fluid so that it uniformly fills at least a portion of the air gap between the stator and the rotor and holds the stator and the rotor together as a single unit; placing the single unit into a motor assembly; seating a plurality of bearings into the motor assembly; locking the stator into place in the motor assembly; removing the fluid from the inflatable gap support tooling; and removing the inflatable gap support tooling from the motor assembly.
Abstract:
A hybrid powertrain has a turbine generator having a shaft. The hybrid powertrain includes a power-split hybrid transmission that has an input member, an output member, and a ratio-controlling motor/generator controllable to vary a speed ratio of the input member to the output member. The turbine generator is in electrical communication with the ratio-controlling motor/generator to electrically power the ratio-controlling motor/generator when the ratio-controlling motor/generator functions as a motor during a power-split operating mode.
Abstract:
A powertrain for a vehicle includes an engine and a method of assembling the powertrain includes providing the engine. A starter mechanism is selectively operable to start the engine. A motor-generator includes an adapter to dispose the motor-generator and the starter mechanism in alternative assembly configurations being a first assembly configuration and a second assembly configuration. The first assembly configuration is when the starter mechanism is coupleable to the adapter to selectively transfer torque from the motor-generator through the adapter and the starter mechanism to start the engine. The second assembly configuration is when the starter mechanism is spaced from the adapter to operate independently of the motor-generator such that the starter mechanism selectively transfers torque to start the engine.
Abstract:
A vehicle powertrain includes a first rotatable member and a second rotatable member. A clutch has an engaged state in which torque is transferred between the first rotatable member and the second rotatable member through the clutch. The clutch has a disengaged state in which torque is not transferred between the first rotatable member and the second rotatable member through the clutch. A clutch actuator includes a motor-generator that has a rotor rotatably drivable by one of the first rotatable member and the second rotatable member, and has a stator powerable to rotatably drive the rotor relative to said one of the first rotatable member and the second rotatable member. A controller is operatively connected to the stator and is configured to control the motor-generator to function as a generator to provide torque on the rotor. The motor-generator provides electrical power to a vehicle component.
Abstract:
A torque transmitting device for use in an automotive transmission is provided. The device includes a first annular race and a second annular race disposed concentrically around the first annular race. First and second locking elements are pivotally connected to one of the first and second annular races. The first locking element is moveable to rotationally fix the first annular race to the second annular race in a first rotational direction to transfer torque therebetween. The second locking element is moveable to rotationally fix the first annular race to the second annular race in a second rotational direction to transfer torque therebetween, where the second rotational direction is opposite the first rotational direction. A control rail is disposed adjacent to the first and second annular races. The control rail has indentations formed therein and is moveable to allow the torque transmitting device to be selectively engaged.
Abstract:
A torque transmitting device for use in an automotive transmission is provided. The device includes a first annular race and a second annular race disposed concentrically around the first annular race. First and second locking elements are pivotally connected to one of the first and second annular races. The first locking element is moveable to rotationally fix the first annular race to the second annular race in a first rotational direction to transfer torque therebetween. The second locking element is moveable to rotationally fix the first annular race to the second annular race in a second rotational direction to transfer torque therebetween, where the second rotational direction is opposite the first rotational direction. A control rail is disposed adjacent to the first and second annular races. The control rail has indentations formed therein and is moveable to allow the torque transmitting device to be selectively engaged.
Abstract:
An example rotor includes a rotor yoke having an outer circumference and an inner circumference. The rotor further includes a plurality of rotor ribs on a surface the rotor yoke and extending between the outer circumference and the inner circumference. The rotor further includes a plurality of magnets, each of the plurality of magnets being disposed adjacent to and between two of the plurality of rotor ribs.
Abstract:
An all-wheel drive system for a vehicle having a longitudinal axis includes an electric motor. The electric motor has an output shaft that extends along a first axis, and the first axis is substantially perpendicular to the longitudinal axis. The all-wheel drive system includes a first drive system including a first clutch and a first differential system configured to be coupled to a second drive system and to transfer torque to first wheels of the vehicle in a first state of the first clutch. The second drive system includes a second drive shaft and a second differential system. The second drive shaft is coupled to the output shaft and configured to transfer the torque to the second differential system. The second differential system is configured to transfer torque to second wheels of the vehicle, and the second differential system extends along a second axis substantially parallel to the first axis.
Abstract:
The present disclosure includes a rotor core assembly for an electric motor. The rotor core assembly includes a plurality of laminations secured together. A center bore is defined by the plurality of laminations. A longitudinal axis of the rotor core assembly extends along an axial center of the center bore. A carbon fiber sleeve surrounds the plurality of laminations. Magnet slots are defined by the plurality of laminations. The magnet slots extend parallel to the longitudinal axis. Magnets are seated in the magnet slots. Reinforcing bores are defined by, and extend across, the plurality of laminations. Reinforcing members are seated in the reinforcing bores.
Abstract:
A stator core segment for an axial flux electric motor includes a first lamination step having a first length, a first width, and a first thickness, and a second lamination step having a second length, a second width, and a second thickness. At least one of the second length, the second width, and the second thickness is distinct from corresponding ones of the first length, the first width, and the first thickness.