POWER TRANSMISSION DEVICE

摘要

A power transmission device (1) is mounted in a vehicle and provided with a stepless speed change unit (21) and a stepped speed change unit (22). The power transmission device is provided with a control means (30) which starts first speed change control that is control related to the speed change of the stepless speed change unit and second speed change control that is control related to the speed change of the stepped speed change unit so that the respective speed change end timings of the stepless speed change unit and the stepped speed change unit are synchronized on condition that speed change requests to the stepless speed change unit and the stepped speed change unit are simultaneously detected. In the power transmission device, the first speed change control and the second speed change control are started so that the respective speed change end timings of the stepless speed change unit and the stepped speed change unit are synchronized, thereby making it possible to suppress the lowering of drivability and reduce the time required for speed change.