| 摘要 |
PROBLEM TO BE SOLVED: To carry out efficient cooling suitable for a driving condition of an engine and an electric drive motor. SOLUTION: This cooling system is constituted by communicating a cooling system 4 for an engine and a cooling system 5 for a motor to each other through pipes 18, 21 for circulation, being provided with a displacement type assist electric drive pump 19 having a passing water blocking function at the time of stopping on the pipings 18, 21 for circulation and being provided with sensors 22, 23 to respectively detect water temperature in this cooling system for the engine and water temperature in the cooling system 5 for the motor. An electric pump 15 of the cooling system 5 for the motor and the assist electric drive pump 19 are driven in accordance with signals of these sensors 22, 23. |
