Power transmission device

A power transmission device comprising:

• an engine arranged on a shaft;
• a first motor;
• a second motor arranged on a different shaft from the shaft on which the engine is arranged;
• a first differential mechanism having a sun gear to which the first motor is connected, a carrier to which the engine is connected, and a ring gear to which the second motor and a drive wheel are connected;
• a second differential mechanism having a first rotational element to which the first motor is connected, a second rotational element, and a third rotational element to which the engine is connected, the second differential mechanism being arranged such that the first motor is located between the first differential mechanism and the second differential mechanism in an axial direction of the engine;
• a case that houses the second differential mechanism;
• and
• a brake mechanism configured to restrict rotation of the second motor and the brake mechanism being configured such that an engine speed is increased by restricting rotation of the second rotational element and the engine speed is output from the ring gear, the brake mechanism being arranged in the case.