To inhibit deficiency of a quantity of recovered heat in relation to a required quantity, in a case where heat generated in an inverter due to electric conduction is used for warm-up in response to a warm-up request during stop.SOLUTION: A warm-up control device for a vehicle comprises a control unit 5 that executes warm-up control for supplying, via cooling water, a warm-up requesting apparatus with heat generated by an inverter 3 due to electric conduction. A cooling water circuit 100 includes an inverter cooling circuit in which a cooling water conduit for cooling a semiconductor element of U phase, a cooling water conduit for cooling a semiconductor element of V phase, and a cooling water conduit for cooling a semiconductor element of W phase are formed in parallel. In a case where there is a warm-up request during stop, the control unit 5 specifies electrical currents for the U phase, V phase, and W phase of the inverter 3, increases the flow rate of cooling water flowing in a cooling water conduit for cooling the semiconductor element having a phase relatively large in electrical current, and decreases the flow rate of cooling water flowing in a cooling conduit for cooling the semiconductor element having a phase relatively small in electrical current.SELECTED DRAWING: Figure 1
【課題】停車中の暖機要求に対して、通電によりインバータで生じる熱を暖機に用いる場合、必要量に対して回収された熱量が不足することを抑制すること。【解決手段】通電によりインバータ3で生じた熱を冷却水を介して暖機要求のある機器に供給する暖機制御を実行する制御部5を備える車両の暖機制御装置であって、冷却水回路100は、U相の半導体素子を冷却する冷却水流路と、V相の半導体素子を冷却する冷却水流路と、W相の半導体素子を冷却する冷却水流路と、が並列に形成されたインバータ冷却回路を含み、停車中に暖機要求がある場合、制御部5は、インバータ3のU相、V相、W相の電流を特定し、相対的に電流が大きい相の半導体素子を冷却するための冷却水流路に流れる冷却水の流量を増やし、かつ相対的に電流が小さい相の半導体素子を冷却するための冷却水流路に流れる冷却水の流量を減らす。【選択図】図1
WARM-UP CONTROL DEVICE FOR VEHICLE
車両の暖機制御装置
2020-07-27
Patent
Electronic Resource
Japanese
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / H02M APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS , Anlagen zur Umformung von Wechselstrom in Wechselstrom, von Wechselstrom in Gleichstrom oder umgekehrt, oder von Gleichstrom in Gleichstrom und zur Verwendung in Netzen oder ähnlichen Stromversorgungssystemen |
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