| 摘要 |
An operator selectable transmission and method for a vehicle with variable drivetrain and torque control. The operator selectable transmission includes a plurality of transmission modes, each mode including a plurality of selectable contour relationships between vehicle ground speed and transmission rim-pull, an operator mode selector for selecting transmission mode, and an operator contour selector for selecting a contour for the selected mode. There can be hydrostatic, torque converter, direct drive and other transmission modes. An operator interface can display the currently selected mode, and its affects on performance, fuel consumption, and brake wear. The contour selector can be a foot pedal, hand lever or other device. The method includes reading a selected mode, contour and ground speed; determining a rim-pull command based on the readings; calculating a torque command for the transmission based on the rim-pull command and vehicle parameters; and sending the calculated torque command to the transmission.
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