Indicator for a shift by wire vehicle transmission
AssigneeWABCO GmbH & Co. OHG
InventorsGerhard Bockmann, Andreas Bohm
Life of this patent
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AssigneeWABCO GmbH & Co. OHG
InventorsGerhard Bockmann, Andreas Bohm
Estimating the term…
Non-synchronized, manually shiftable transmissions of modern vehicle types are actuated by means of an automated transmission control, and the driver can optionally select any gear by means of an actuator which is electrically connected to the transmission control device. In general terms, the method of this invention includes the operator generating a signal indicating a desire to shift the transmission. The transmission then automatically begins implementing the shift. If the currently engaged gear is not disengaged within a preselected time period, because the system cannot achieve a break torque condition, for example, the system signals the driver to manually operate the clutch. A visual and audible signal preferably are provided to the driver. Once the driver manually operates the clutch, the system is able to complete the desired shift.
A method of controlling a vehicle drive system including an engine, a manually operable clutch, a transmission that has a plurality of selectively engageable gears and that is coupled to the engine through the clutch, and an automated shift module that changes the gears within the transmission, comprising the steps of:
Dependencies are inferred from the claim text.