US 12,098,769 B2
Transmission control device
Katsuya Sano, Kobe (JP)
Assigned to KAWASAKI MOTORS, LTD., Akashi (JP)
Filed by KAWASAKI MOTORS, LTD., Akashi (JP)
Filed on Dec. 14, 2022, as Appl. No. 18/066,253.
Claims priority of application No. 2021-203482 (JP), filed on Dec. 15, 2021.
Prior Publication US 2023/0184326 A1, Jun. 15, 2023
Int. Cl. F16H 61/04 (2006.01); B60W 30/19 (2012.01); F16H 61/08 (2006.01); F16H 63/50 (2006.01)
CPC F16H 61/0403 (2013.01) [F16H 61/0437 (2013.01); F16H 61/08 (2013.01); F16H 63/502 (2013.01); B60W 30/19 (2013.01); F16H 2306/20 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A transmission control device configured to control a first prime mover and a second prime mover of which output responsiveness to an output change command is different from each other in a system, the system including the first prime mover, the second prime mover, and a gear transmission, the gear transmission including an input shaft to which a driving force of the first prime mover and a driving force of the second prime mover are transmitted, an output shaft, a plurality of transmission gears, and a dog configured to move to the input shaft and the output shaft to be engaged selectively with one of the plurality of transmission gears, the control device comprising:
a processing circuitry, wherein
the transmission control device causes the processing circuitry to execute a process, the process including:
in response to a shift command for shifting from a first transmission gear position to a second transmission gear position, calculating a target rotational speed of the first prime mover and a target rotational speed of the second prime mover for a synchronous control that brings one of a rotational speed of the dog at the second transmission gear position and a rotational speed of the transmission gear at the second transmission gear position close to the other; and
determining a first timing or a second timing such that the second timing is later than the first timing, the first timing being a time at which the synchronous control of the first prime mover is started, and the second timing being a time at which the synchronous control of the second prime mover is started.