摘要:
An over-running clutch assembly comprises an outer race having a cylindrical inner surface and an inner race having a cammed outer surface coaxial with the cylindrical inner surface and defining a gap therebetween and a roller clutch disposed within the gap; a biasing element to bias the roller clutch to a disengaged position; and an actuator to selectively overcome the biasing element to engage the roller clutch and lock the outer race and inner race and prevent relative rotation between the outer race and inner race.
摘要:
A two-way clutch for allowing limited torque to be transferred until a roller clutch mechanism is forced to an engaged position. The present invention includes a roller clutch, with a torque generating device mounted thereon, including an actuator for producing an axial force onto a clutch pack. A torque transfer device is disposed between the torque generating device and the roller clutch. The torque transfer device is adapted to receive torque from the torque generating device and to transfer torque to the roller clutch. When a predetermined level of torque is produced by the torque generating device, the torque transfer device moves the roller clutch into an engaged position.
摘要:
A driveline assembly includes first and second axle half-shafts having first and second side gears mounted thereon, an axle housing, a differential case rotatably mounted within the axle housing, a least two spider gears rotatably mounted within the differential case, and a clutch assembly coupled to the differential housing and one of the axle half-shafts and including an outer race having a cylindrical inner surface and an inner race having a cammed outer surface coaxial with the cylindrical inner surface and defining a gap therebetween and a roller clutch disposed within the gap; a biasing element to bias the roller clutch to a disengaged position; and an actuator to selectively overcome the biasing element to engage the roller clutch and lock the outer race and inner race and prevent relative rotation between the outer race and inner race.
摘要:
An over-running clutch assembly for an automotive transmission comprises an outer race having a cylindrical inner surface and an inner race engaged with a drop shaft of the transmission and having a cammed outer surface coaxial with the cylindrical inner surface and defining a gap therebetween and a roller clutch disposed within the gap; a biasing element to bias the roller clutch to a disengaged position; and an actuator to selectively overcome the biasing element to engage the roller clutch and lock the outer race and inner race and prevent relative rotation between the outer race and inner race, thereby preventing rotation of the drop shaft and movement of the automobile.
摘要:
A clutch system is described wherein a two-way roller clutch system transmits torque in from one direction (i.e., input side) only, and allows the clutch system to be physically decoupled from the power steering system when torque is forced in from the output side, e.g., during loss of electrical power to the power steering motor. Additionally, the clutch system can include a torque limiting system that permits slip when overall torque exceeds a preset limit. Both the clutch system and the torque limitation system are especially useful in conjunction with automotive power steering systems.
摘要:
A clutch assembly comprises an outer race and an inner race defining a gap between the inner and outer races. One of the inner and outer race includes a plurality of cam surfaces, and one of the inner and outer races is tapered toward a first end of the clutch. A plurality of tapered rolling elements are positioned between the races along the cam surfaces such that the rolling elements wedge between the inner and outer races to prevent relative rotation. An axially moveable retainer interconnects the rolling elements and is biased toward the first end of the clutch, wherein each of the rolling elements wedge between the inner and outer races. An actuator selectively moves the retainer axially away from the first end such that the tapered rolling elements no longer wedge between the inner and outer races, thereby allowing relative rotational movement.
摘要:
An over-running clutch assembly comprises an outer race having a cylindrical inner surface and an inner race having a cammed outer surface coaxial with the cylindrical inner surface and defining a gap therebetween and a roller clutch disposed within the gap; a biasing element biases the roller clutch to a disengaged position; and an actuator selectively overcomes the biasing element to engage the roller clutch and lock the inner and outer races to prevent relative rotation therebetween. The actuation disk and the case end includes a first portion adapted to provide initial axial surface to surface contact between the actuation disk and the case end when the actuation disk contacts the case end and a second portion adapted to provide an surface to surface contact only after deflection of the actuation disk under the force of the actuator, thereby providing a spring back response when the actuator is de-energized.
摘要:
A rotation transmission device including a clutch having an inner member, an outer ring, and engaging elements provided between the inner member and the outer ring for selective transmission and shutoff of rotation power between the inner member and the outer ring, and an electromagnetic clutch having an electromagnetic coil for locking and disengaging the clutch. When the clutch is not engaged, a current of a lower level than required to lock the clutch is supplied to the electromagnetic coil of the electromagnetic clutch to shorten the response time. In another method, when DIRECT-CONNECT 4WD mode is selected, a current is intermittently supplied to an electromagnetic coil to reduce power consumption and heat buildup.
摘要:
A vehicle stability control system includes a controller configured to deactivate a traction control clutch, provide a reverse torque across the traction control clutch, and apply a braking torque according to a vehicle stability control strategy. The reverse torque across the traction control clutch may be provided by reducing an engine torque output, applying a pulse of brake pressure, or other means.
摘要:
A vehicle stability control system includes a controller configured to deactivate a traction control clutch, provide a reverse torque across the traction control clutch, and apply a braking torque according to a vehicle stability control strategy. The reverse torque across the traction control clutch may be provided by reducing an engine torque output, applying a pulse of brake pressure, or other means.