System, method, and apparatus for operating a high efficiency, high output transmission
AssigneeEaton Cummins Automated Transmission Technologies, LLC
InventorsThomas Connolly, Joseph Paul Furner, Sipei Chen, Jeff Hawarden, Ian Daniel McKenzie, Christopher DeBoer
Life of this patent
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Abstract
A transmission includes an input shaft coupled to a prime mover, a countershaft, main shaft, and an output shaft, with gears between the countershaft and the main shaft. A shift actuator selectively couples the input shaft to the main shaft by rotatably coupling gears between the countershaft and the main shaft. The shift actuator is mounted on an exterior wall of a housing including the countershaft and the main shaft. A controller controls the shift actuator utilizing an actuating pulse and an opposing pulse.
Claims5
An apparatus, comprising:
- a clutch characterization logic configured to interpret a clutch torque profile of a clutch;
- a clutch control logic configured to command a position of a progressive actuator operationally coupled to the clutch;
- wherein the clutch characterization logic is further configured to:
- interpret a position of the progressive actuator and an indicated clutch torque, and to update the clutch torque profile in response to the position of the progressive actuator and the indicated clutch torque;
- and
- interpret the clutch torque profile by performing a clutch engagement position test, and comparing an acceleration of an input shaft speed of a transmission to a first expected acceleration value of the input shaft speed;
- and
- a launch characterization logic configured to provide an iteratively derived estimated vehicle mass value that is based at least in part on a model consistency logic that adjusts an adaptation rate of operations of a vehicle environment logic and a mass estimation logic.
Dependencies are inferred from the claim text.