Power transmission apparatus for vehicle

A power transmission apparatus for a vehicle, comprising:

• a first shift unit;
• a second shift unit;
• at least one electric motor that is connected to a rotating element of the first shift unit or a rotating element of the second shift unit so that a rotational speed of the electric motor is changed in accordance with a gear-shift of the first shift unit or a gear-shift of the second shift unit;
• and
• a control unit that restricts, during the gear-shift of one of the first shift unit and the second shift unit, start of an inertia phase of the gear-shift of the other of the first shift unit and the second shift unit with use of the electric motor, when the gear-shift of the first shift unit and the gear-shift of the second shift unit are performed at the same time and a gear ratio of the first shift unit and a gear ratio of the second shift unit are changed in opposite directions.

A power transmission apparatus for a vehicle, comprising:

• a first shift unit;
• a second shift unit;
• at least one electric motor that is connected to a rotating element of the first shift unit or a rotating element of the second shift unit so that a rotational speed of the electric motor is changed in accordance with a gear-shift of the first shift unit or a gear-shift of the second shift unit;
• and
• a control unit that controls at least one of timing at which an inertia phase of the gear-shift of the first shift unit is completed and timing at which an inertia phase of the gear-shift of the second shift unit is completed with use of the electric motor, when the gear-shift of the first shift unit and the gear-shift of the second shift unit are performed at the same time and a gear ratio of the first shift unit and a gear ratio of the second shift unit are changed in opposite directions.

A power transmission apparatus for a vehicle, comprising:

• a first shift unit;
• a second shift unit;
• at least one electric motor that is connected to a rotating element of the first shift unit or a rotating element of the second shift unit so that a rotational speed of the electric motor is changed in accordance with a gear-shift of the first shift unit or a gear-shift of the second shift unit;
• and
• a control unit that restricts, during the gear-shift of one of the first shift unit and the second shift unit, completion of an inertia phase of the gear-shift of the other of the first shift unit and the second shift unit with use of the electric motor, when the gear-shift of the first shift unit and the gear-shift of the second shift unit are performed at the same time and a gear ratio of the first shift unit and a gear ratio of the second shift unit are changed in opposite directions.