Starting clutch control device for automatic transmission

A starting clutch control device for an automatic transmission comprising:

• a starting clutch controller,
• wherein the starting clutch control device controls a transmission torque capacity of a starting clutch interposed in a transmission path in which rotation of a power source is transmitted to wheels while shifting is underway by the automatic transmission,
• wherein the starting clutch controller controls the transmission torque capacity of the starting clutch such that a rotation trajectory of the power source develops as desired in a rotation speed range in which the transmission torque capacity control of the starting clutch is necessary,
• wherein the starting clutch controller causes the transmission torque capacity of the starting clutch to change, when a shift of the automatic transmission occurs during the transmission torque capacity control by the starting clutch controller, in a direction in which the change in the rotation trajectory will occur corresponding to the shift,
• wherein, when the shift of the automatic transmission that occurs during the transmission torque capacity control is an upshift, the starting clutch controller increases the transmission torque capacity of the starting clutch to thereby change the rotation trajectory in a rotation decreasing direction,
• wherein, when the shift is a downshift, the starting clutch controller decreases the transmission torque capacity of the starting clutch to thereby change the rotation trajectory in the rotation increasing direction,
• wherein the starting clutch controller determines whether a shift command is issued to the automatic transmission,
• wherein the starting clutch controller determines whether rotation trajectory control is being executed,
• wherein the starting clutch controller increases the transmission torque capacity of the starting clutch, when the starting clutch controller determines that the shift command has been issued while the rotation trajectory control is executed, and the shift of the automatic transmission that occurs during the transmission torque capacity control is an upshift, to thereby decrease the power source rotational speed from a desired trajectory, and
• wherein the starting clutch controller decreases the transmission torque capacity of the starting clutch, when the starting clutch controller determines that the shift command has issued while the rotation trajectory control is executed, and the shift of the automatic transmission that occurs during the transmission torque capacity control is an upshift, to thereby increase the power source rotational speed from the desired trajectory.