Control device for vehicle, and motorcycle

摘要

In a vehicle including two paths as torque transmission paths from an engine to an output shaft of a transmission, each of the paths provided with a clutch and a transmission mechanism, a gear shift shock due to a torque generated at the moment when the paired gears of the next gear level are engaged is significantly reduced. In normal travel control, a control device sets a transmitted torque capacity of each of the clutches in the two paths at maximum. Also, in the normal travel control, the control device sets the paired gears of the transmission mechanism in a previous path that is one of the paths, in an engaged state, and sets the transmission mechanism in a next path that is the other path, in a neutral state. When a gear shift command is generated, the control device lowers the transmitted torque capacity of the clutch in the next path. After that, the control device engages the paired gears of the transmission mechanism in the next path with each other, before the transmitted torque capacity of the clutch in the next path reaches a minimum value.

主权项

1. A control device for a vehicle that includes two paths that transmit an engine torque, each of the two paths includes a clutch and a transmission mechanism arranged downstream of the clutch, the transmission mechanisms in the two paths share an output shaft, and each of the transmission mechanisms includes a first gear rotating together with a driven member of its respective clutch, and a second gear rotating together with the output shaft and engageable with the first gear by a dog clutch, wherein
the control device is arranged and programmed to execute:
normal travel control in which a transmitted torque capacity of each of the clutches is set to a value that the clutches have in an engaged state, the transmission mechanism in a previous path that is one of the two paths is set in an engaged state in which the first gear and the second gear are engaged with each other, and the transmission mechanism in a next path that is the other path is set in a neutral state in which the first gear and the second gear are not engaged with each other;next clutch capacity reduction control in which the transmitted torque capacity of the clutch in the next path is lowered in response to a gear shift command generated during the normal travel control; andnext gear engagement control in which the first gear and the second gear of the transmission mechanism in the next path become engaged with each other in a state in which the transmitted torque capacity of the clutch in the next path is higher than a value at a time when the clutch in the next path is disengaged, after the next clutch capacity reduction control is started.