Vehicle driving device

A vehicle driving device of a vehicle, the vehicle including:

• an engine;
• a clutch provided on a power transmission path between the engine and a drive wheel;
• a mechanical oil pump configured to be driven selectively by the engine or the drive wheel and to supply a discharged operation oil to a supplied unit;
• a hydraulic path connecting the mechanical oil pump to the supplied unit;
• and an ECU configured to adjust a hydraulic pressure of the hydraulic path, the vehicle driving device comprising:
• the ECU configured to:
• determine a coasting execution condition is satisfied when each of an accelerator and a brake of the vehicle is OFF,
• execute a coasting control when the coasting executing condition is satisfied during traveling, the coasting control including disengaging the clutch and stopping the engine;
• and
• after disengaging the clutch and prior to the engine being stopped when the coasting control executing condition is satisfied during traveling, increase the hydraulic pressure of the hydraulic path such that a discharge pressure of the mechanical oil pump becomes higher when the clutch is disengaged than the discharge pressure of the mechanical oil pump when the clutch is engaged, and
• wherein the vehicle drives the mechanical oil pump by the drive wheel during the execution of the coasting control.