Patent ID: 8229636

Claim:
A method of shifting gear in a power-assist transmission; to shift gear, the method comprises performing, in sequence, a series of operations, each of which must be completed prior to completion of the next operation; and the method further comprising the steps of: estimating for each operation a predicted delay time corresponding to the time lapse between the instant the operation is commanded, and the instant the operation is actually completed; commanding a first operation at a first instant; estimating a second instant, at which the first operation will actually be completed, by adding the predicted delay time of the first operation to the first instant at which the first operation was commanded; determining a third instant, at which to command a second successive operation, by subtracting from the second instant the predicted delay time of the second successive operation reduced by a safety constant for preventing completion of the first operation and completion of the second successive operation from overlapping; and commanding the second successive operation at the third instant.