Patent ID: 11938825
Assignee: EATON INTELLIGENT POWER LIMITED
Field: Transport (Mechanical engineering)
Classification: CPC B  Y | IPC B

Claim 16:
17. The system of claim 1, further comprising:
wherein the drive line couples the prime mover to a motive wheel of the vehicle;
a transmission interposed between the prime mover and the motive wheel, the transmission having a plurality of gears of varying ratios;
a clutch interposed between the prime mover and the transmission, the clutch having a first position that rotationally couples an input shaft of the transmission to the prime mover, and a second position that decouples the input shaft of the transmission from the prime mover;
the motor/generator at least selectively coupled to one of an input shaft or a countershaft of the transmission, wherein the countershaft selectively couples the input shaft to at least one of a main shaft or an output shaft, thereby implementing a selected gear ratio;
a controller, comprising:
a shift determination circuit structured to determine that an upshift event is in progress; and
a shift execution circuit structured to:
position the transmission in neutral in response to an unlock phase of the upshift event;
commence a synchronization phase of the upshift event after positioning the transmission in neutral;
commence a clutch closing operation at a scheduled rate during the synchronization phase, thereby bringing a rotational speed of the prime mover and the input shaft to a common speed;
determining a speed differential between the common speed and a synchronization speed; and
providing a motor/generator torque command in response to the speed differential; and

wherein the motor/generator is responsive to the motor/generator torque command to adjust the common speed.