Patent classifications
F16H57/12
Process for the adjustment of backlash between a pinon and a rack in a rack-pinion drive
In a process for the adjustment of backlash between a pinon (20) and a rack (10) in a rack-pinion drive, a motor-gearbox assembly (30) including a motor and a gearbox is supported on a carrier (40) via a positioning mechanism (42) for precisely positioning the assembly (30) in a radial position relative to the rack (10). In the process, the assembly (30) is positioned in a first radial distance relative to the rack (10), using the positioning mechanism (42) and a first circumferential backlash between the pinon (20) and the rack (10) is determined at a first position of the pinion (20) along the rack (10), based on measurements taken on an input side of the gearbox. Then, the assembly (30) and/or the rack (10) are positioned in a second position of the pinion (20) along the rack (10), different from the first position, and a second circumferential backlash between the pinon (20) and the rack (10) is determined at the second position, based on measurements taken on the input side of the gearbox A minimal circumferential backlash is determined from the determined first circumferential backlash and the determined second circumferential backlash (and possibly further measurements), and a radial adjustment distance is determined based on the determined minimal circumferential backlash. Finally, the motor-gearbox assembly (30) is repositioned in a radial direction, towards the rack (10), by the determined radial adjustment distance, using the positioning mechanism (42).
Process for the adjustment of backlash between a pinon and a rack in a rack-pinion drive
In a process for the adjustment of backlash between a pinon (20) and a rack (10) in a rack-pinion drive, a motor-gearbox assembly (30) including a motor and a gearbox is supported on a carrier (40) via a positioning mechanism (42) for precisely positioning the assembly (30) in a radial position relative to the rack (10). In the process, the assembly (30) is positioned in a first radial distance relative to the rack (10), using the positioning mechanism (42) and a first circumferential backlash between the pinon (20) and the rack (10) is determined at a first position of the pinion (20) along the rack (10), based on measurements taken on an input side of the gearbox. Then, the assembly (30) and/or the rack (10) are positioned in a second position of the pinion (20) along the rack (10), different from the first position, and a second circumferential backlash between the pinon (20) and the rack (10) is determined at the second position, based on measurements taken on the input side of the gearbox A minimal circumferential backlash is determined from the determined first circumferential backlash and the determined second circumferential backlash (and possibly further measurements), and a radial adjustment distance is determined based on the determined minimal circumferential backlash. Finally, the motor-gearbox assembly (30) is repositioned in a radial direction, towards the rack (10), by the determined radial adjustment distance, using the positioning mechanism (42).
Track system with a support member
An anchor for a support member of a track system may include an anchor body and a toothed anchor portion. The anchor body may be connectable to said support member. The toothed anchor portion may include a plurality of anchor teeth configured to engage a plurality of track teeth of a toothed portion of a track assembly. The anchor body and the toothed anchor portion may be connected to one another to collectively form a hook portion configured to engage said toothed portion of said track assembly. At least a subset of anchor teeth of the plurality of anchor teeth may be disposed one after another in a curved or angled configuration to define a curved or angled row of anchor teeth.
Track system with a support member
An anchor for a support member of a track system may include an anchor body and a toothed anchor portion. The anchor body may be connectable to said support member. The toothed anchor portion may include a plurality of anchor teeth configured to engage a plurality of track teeth of a toothed portion of a track assembly. The anchor body and the toothed anchor portion may be connected to one another to collectively form a hook portion configured to engage said toothed portion of said track assembly. At least a subset of anchor teeth of the plurality of anchor teeth may be disposed one after another in a curved or angled configuration to define a curved or angled row of anchor teeth.
Systems and methods for torque shaping
A vehicle includes controller programmed to receive a driver-demanded wheel torque command and calculate a shaped wheel torque command based on the driver-demanded wheel torque command. The controller is further programmed to, in response to the driver-demanded wheel torque command changing from a first magnitude that is greater than an estimated wheel torque at a last time step to a second magnitude that is less than the estimated wheel torque at a current time step, set the shaped wheel torque to a minimum of a magnitude of the shaped wheel torque at the last time step and an estimated wheel torque at the current time step. The controller is also programmed to command the first and second actuators to produce the shaped wheel torque.
Systems and methods for torque shaping
A vehicle includes controller programmed to receive a driver-demanded wheel torque command and calculate a shaped wheel torque command based on the driver-demanded wheel torque command. The controller is further programmed to, in response to the driver-demanded wheel torque command changing from a first magnitude that is greater than an estimated wheel torque at a last time step to a second magnitude that is less than the estimated wheel torque at a current time step, set the shaped wheel torque to a minimum of a magnitude of the shaped wheel torque at the last time step and an estimated wheel torque at the current time step. The controller is also programmed to command the first and second actuators to produce the shaped wheel torque.
Actuating Mechanism, Clutch Actuator and Transmission Actuator With Improved Vibration Behavior
An actuating mechanism includes a transmission element configured to be displaced parallel to a transmission direction, an actuating element configured to perform an actuating movement to cause the displacement of the transmission element in the transmission direction, a conversion mechanism arranged between the transmission element and the actuating element which converts the actuating movement of the actuating element into the displacement of the transmission element, and a bracing element configured to introduce a pretension, preferably an elastic pretension, at least into the conversion mechanism. The invention also relates to a clutch actuator and a transmission actuator having an actuating mechanism in accordance with the present invention.
Power take off including a torsional vibration damping assembly
A power take off includes a housing, an input mechanism that is supported in the housing and is adapted to be rotatably driven by a source of rotational energy, and an output mechanism that is supported in the housing and is rotatably driven by the input mechanism, the output mechanism being adapted to rotatably drive a rotatably driven accessory. The power take off further includes a two piece damping assembly that minimizes the transmission of torque transients from the input mechanism to the output mechanism. The two piece damping assembly may be an input cluster gear assembly that includes a first gear portion and a second gear portion that are supported for rotational movement relative to one another. The two piece damping assembly may also be part of a clutch assembly for selectively the output mechanism to be rotatably driven by the input mechanism.
DUAL-MOUNT FOR SPRING-LOADED GEAR-DRIVEN RESOLVERS
A resolver assembly for a ducted-rotor aircraft is configured to detect and measure rotation of a spindle of the aircraft. The resolver assembly includes first and second gear-driven resolvers. The first and second resolvers are coupled about a shared pivot axis and are independently pivotable about the pivot axis to maintain engagement of the first and second resolvers with the spindle of the aircraft. The resolver assembly is configured such that the first and second resolvers are biased toward the spindle. The input shafts of the first and second resolvers are spaced from the pivot axis through respective first and second distances that extend outward from the pivot axis along respective first and second radial directions. The first distance is equal to the second distance and the first radial direction is not coincident with the second radial direction.
DUAL-MOUNT FOR SPRING-LOADED GEAR-DRIVEN RESOLVERS
A resolver assembly for a ducted-rotor aircraft is configured to detect and measure rotation of a spindle of the aircraft. The resolver assembly includes first and second gear-driven resolvers. The first and second resolvers are coupled about a shared pivot axis and are independently pivotable about the pivot axis to maintain engagement of the first and second resolvers with the spindle of the aircraft. The resolver assembly is configured such that the first and second resolvers are biased toward the spindle. The input shafts of the first and second resolvers are spaced from the pivot axis through respective first and second distances that extend outward from the pivot axis along respective first and second radial directions. The first distance is equal to the second distance and the first radial direction is not coincident with the second radial direction.