The present invention relates to a cooling system for a hybrid vehicle and having an oil circuit (11) and a water cooling circuit (5), wherein the oil circuit (11) is used for adjusting the heat of a transmission (10) and a motor. Surplus heat (Qe) is tranfrrred to the water cooling circuit (5) from the oil circuit (11) through a heat exchanger (14), and the waste heat of an internal combuistion engine (2) passes the water cooling circuit (5) and is adjusted by a temperature adjusting device (8), and is discharged to an environment when a main water cooling device (6) is being used. The invention further relates to a method for adjusting the cooling system. In order to solve the target conflicts between the settings of optimal temperatures of a transmission and a motor, a method for adjusting the cooling system (1) used by the hydrbid vehicle driving device is proposed. In the water cooling circuit (5), when an electric pump (17) which is adjusted by the current temperature (T) of the oil circuit (11) is being used, the cooling water, after leaving a water side (15) of the heat exchanger (14), on the one hand, is introduced to the front of temperature adjusting device (8) through a branch circuit (24) having a throttle valve at a branching point (21); and on the other hand, in the water cooling circuit (5), when a bypass branch circuit (22) is being used, the cooling water is introduced to the position behind the internal combuistion engine (2).
Cooling system for hybrid vehicle and adjusting method thereof
2015-06-03
Patent
Electronic Resource
English
IPC: | F01P Kühlung von Kraft- und Arbeitsmaschinen oder Kraftmaschinen allgemein , COOLING OF MACHINES OR ENGINES IN GENERAL / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / H02K Dynamoelektrische Maschinen , DYNAMO-ELECTRIC MACHINES |
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