Driving apparatus for vehicle

A driving apparatus for a vehicle that includes a pair of front wheels and a pair of rear wheels, the driving apparatus comprising:

• (a) an engine;
• (b) a fluid transmission device including (b-1) an input-side rotary element configured to receive a power from the engine and (b-2) an output-side rotary element configured to output the power received by the input-side rotary element;
• (c) a first rotary electric machine connected to the input-side rotary element;
• (d) a first output shaft which is configured to receive the power outputted by the output-side rotary element and transmitted through a first power transmission path and which is configured to output the power to one of the pair of front wheels and the pair of rear wheels;
• (e) a second rotary electric machine;
• and (f) a control device configured to control an operation point of the engine by adjusting an electrical path amount that is an amount of an electric power in an electrical path through which the electric power is to be transferred between the first and second rotary electric machines,
• wherein the second rotary electric machine is configured to output the power to the first output shaft or the other of the pair of front wheels and the pair of rear wheels, through a second power transmission path that is other than the first power transmission path,
• wherein the second power transmission path is provided with a speed change device that is configured to change a speed of rotation of the second rotary electric machine in accordance with a currently established one of gear ratios that is established in the speed change device and to output the rotation whose speed has been changed,
• wherein the control device is configured to obtain a target electrical path amount as a target amount of the electrical path amount that enables the operation point of the engine to become a target operation point, and to control the speed change device based on the obtained target electrical path amount so as to establish one of the gear ratios that enables the obtained target electrical path amount to be attainable;
• and
• wherein the control device is configured to adjust the electrical path amount to the obtained target electrical path amount, and to control the operation point of the engine.