Control apparatus for power transmission system

A control apparatus for a power transmission system, the power transmission system including a dog clutch and a hydraulic actuator, the dog clutch being configured to connect or interrupt a power transmission path that transmits power of a driving force source to a drive wheel side, the hydraulic actuator being configured to operate to engage or release the dog clutch, the control apparatus comprising:

• an electronic control unit configured to:
• when the electronic control unit operates the hydraulic actuator to engage the dog clutch,
• (i) determine whether the dog clutch is not engaged when the electronic control unit detects that a hydraulic pressure for operating the hydraulic actuator is higher than or equal to a predetermined hydraulic pressure, and
• (ii) operate the hydraulic actuator to engage the dog clutch again when the electronic control unit determines that the dog clutch is not engaged, wherein:
• the power transmission system further includes a mechanical oil pump, the mechanical oil pump is configured to generate a source pressure for the predetermined hydraulic pressure that operates the hydraulic actuator by being rotationally driven by the driving force source, and
• the electronic control unit is configured to determine whether the hydraulic pressure for operating the hydraulic actuator is higher than or equal to the predetermined hydraulic pressure at a time when the driving force source starts operating in a state where the driving force source is stopping.