Patent ID: 8359943
Filing Date: 2013-01-29
Classification: B60K,F16H,Y10T

Abstract:
1. A by-wire gearshift device for shifting gear positions of an automatic transmission for a vehicle, the gearshift device comprising: a housing fixed to the vehicle; a shaft-shaped gearshift member arranged in the housing in a partially exposed state so as to be rotatable relative to the housing about a rotation axis and movable sidewards in at least a first direction that intersects the rotation axis, with the gearshift member being rotatable to a plurality of rotation positions respectively corresponding to the gear positions of the automatic transmission; a movement restriction unit arranged between the gearshift member and the housing which permits movement of the gearshift member in the first direction only when the gearshift member is rotated to a selected one of the rotation positions to determine shifting to the gear position corresponding to the selected one of the rotation positions; a detector which detects movement of the gearshift member in the first direction and generates a first detection signal in accordance with the selected one of the rotation positions; and a control unit which generates and provides the automatic transmission with a gearshift control signal corresponding to the selected one of the rotation positions based on the first detection signal from the detector, wherein the shifting of the gear position requires a two-step operation including rotation of the gearshift member to a rotated position corresponding to the gear position and movement of the gearshift member in the first direction from the rotated position for each of the plurality of rotation positions; and wherein the movement restriction unit includes: