VEHICLE, HYDRAULIC SYSTEM FOR POWERTRAIN OF VEHICLE, AND CONTROL METHOD THEREFOR

A vehicle, a hydraulic system (100) for a powertrain of a vehicle, and a method for controlling same. The hydraulic system (100) for a powertrain of a vehicle includes an oil tank (10), a main cooling oil path (m), and a plurality of cooling branches. One end of the main cooling oil path (m) is communicated with the oil tank (10). A first oil pump (20) and a cooler (30) are arranged on the main cooling oil path (m). The plurality of cooling branches are connected to another end of the main cooling oil path (m). The first oil pump (20) is configured to pump an oil in the oil tank (10) to the cooling branches. An independently controlled control element is arranged on each of the plurality of cooling branches. The control element is configured to control opening and closing of the corresponding cooling branch. The plurality of cooling branches are configured to cool at least one of a drive motor (50a), a generator (50d), a clutch (50b), and a transmission system (50c).