Shift-by-wire transmission actuator assembly
AssigneeDura Global Technologies, Inc.
InventorYong Q. Wang
Life of this patent
Estimating the term…
Abstract
An actuator for a vehicle transmission having both a shift-by-wire mode and a manual override mode includes a motor and a gear assembly driven by the motor when the vehicle transmission is in a shift-by-wire mode. An output member of the gear assembly is configured to mate with the vehicle transmission. A release member is operable to drive the gear assembly when the vehicle transmission is in a manual override mode.
Claims22
An actuator for a vehicle transmission, the actuator having both a shift-by-wire mode and a manual override mode, comprising, in combination:
- a motor;
- a gear assembly driven by the motor when the vehicle transmission is in a shift-by-wire mode and having an output member configured to mate with the vehicle transmission;
- and
- a release member operable to drive the gear assembly to shift the vehicle transmission out of Park and for manually shifting the gears of the vehicle transmission when the vehicle transmission is in a manual override mode.
An actuator for a vehicle transmission, the actuator having both a shift-by-wire mode and a manual override mode, comprising, in combination:
- a motor;
- a planet gear assembly having a sun gear, a ring gear, and a planet carrier housing at least one planet gear, the planet carrier configured to mate with the vehicle transmission;
- a worm gear driven by the motor, the worm gear operably connected to the sun gear to drive the planet gear assembly when the vehicle transmission is in a shift-by-wire mode;
- and
- a release member operably connected to the ring gear to fix the ring gear in a pre-selected position when the solenoid is energized and drive the planet gear assembly to shift the vehicle transmission out of Park and for manually shifting the gears of the vehicle transmission when the vehicle transmission is in a manual override mode.
An actuator for a vehicle transmission, the actuator having both a shift-by-wire mode and a manual override mode, comprising, in combination:
- a housing;
- a motor secured to the housing;
- a planet gear assembly positioned in the housing and having a sun gear, a ring gear, and a planet carrier having at least one planet gear and a hub, the hub configured to mate with the vehicle transmission;
- a worm gear comprising a drive shaft of the motor and a gear, the gear engaging the sun gear to drive the planet gear assembly when the vehicle transmission is in a shift-by-wire mode;
- and
- a cable connected at one end to the ring gear to fix the ring gear in a pre-selected position when the vehicle transmission is in a shift-by-wire mode and drive the planet gear assembly to shift the vehicle transmission out of Park and for manually shifting the gears of the vehicle transmission when the vehicle transmission is in a manual override mode.
An actuator assembly for a vehicle transmission, the actuator having both a shift-by-wire mode and a manual override mode, comprising, in combination:
- a motor;
- a planet gear assembly having a sun gear, a ring gear, a planet carrier housing three planet gears, and a hub configured to mate with the vehicle transmission;
- a worm gear driven by the motor, the worm gear operably connected to the sun gear to drive the planet gear assembly when the vehicle transmission is in a shift-by-wire mode,
- a first cable connecting a shifter to a control unit to send a signal indicating a desired gear selected by movement of the shifter when the shifter is operated in a shift-by-wire mode;
- a second cable connecting the control unit to the motor to send signals to activate and deactivate the motor;
- a release member connected at one end to the shifter and at its other end to the ring gear to fix the ring gear in a pre-selected position when the vehicle transmission is in a shift-by-wire mode and drive the planet gear assembly to shift the vehicle transmission out of Park and for manually shifting the gears of the vehicle transmission when the shifter is operated in a manual override mode;
- and
- a position sensor to determine a gear position of the vehicle transmission.
Dependencies are inferred from the claim text.