Electronic shifter with adaptive position
AssigneeGM Global Technology Operations LLC
InventorOrson S. Wang
Life of this patent
Estimating the term…
Abstract
A latching shifter mated with a shift-by-wire transmission in which the gear cam includes a momentary shift lever position which is spring biased toward the drive gear notch. A driver is enabled to shift the transmission into a desired gear by passing the shift lever into and out of the momentary shift lever position in the event of autonomous shifting by the transmission or to otherwise provide a selected gear of the transmission. Preferably a dynamically changeable gear shift display is provided, the indicia of which is responsive to the gear status of the transmission.
Claims10
A latching shifter with adaptive position and a shift-by-wire transmission, comprising:
- a shift-by-wire transmission comprising electronics for shifting gears of said shift-by-wire transmission in response to manual selection by a driver and to autonomous selection by said electronics;
- and
- a latching shifter connected to said electronics for manual selection of gears of said shift-by-wire transmission, said latching shifter comprising:
- a shift lever;
- a cam follower movably connected to said shift lever;
- a gear cam comprising:
- a plurality of serially arranged gear notches including a drive gear notch;
- and
- a momentary shift lever position adjoining said drive gear notch;
- wherein said plurality of serially arranged gear notches and said momentary shift lever position are linearly disposed with respect to each other;
- and
- a biasing spring biasing said cam follower into any gear notch of said plurality of gear notches;
- wherein said momentary shift lever position is defined by a surface thereof on which said cam follower is slidable, said surface being inclined with respect to biasing by said biasing spring toward said drive gear notch such that after said cam follower is disposed at said momentary shift lever position, said cam follower slides into said drive gear notch.
Dependencies are inferred from the claim text.