| 摘要 |
<p>A cooling system having a circulation channel for circulating refrigerant to an engine; a motor drive system circulation channel branched from the circulation channel and circulating the refrigerant to a motor drive system; a flow rate distribution adjustment valve installed at a branch point between the circulation channel and the motor drive system circulation channel; and an electric pump for pumping the refrigerant to the circulation channel. A flow rate (Vwe) required on the engine side is set based on an engine rotation speed (Ne), torque (Te), and refrigerant temperature (Tw) (Step 110), a flow rate (Vwm) required on the motor side is set based on an inverter current (Iinv) of the motor drive system and refrigerant temperature (Step S120), and the flow rate distribution adjustment valve and the electric pump are controlled so that the flow rate of the refrigerant flowing to the engine side is the flow rate (Vwe) required on the engine side and that the flow rate of the refrigerant flowing to the inverter side is the flow rate (Vwm) required on the motor side (Step S130, Step S140).</p> |
