Thermal management system with secondary circuit

A thermal management system for a battery powered electric vehicle is provided, the system comprising a major loop and a secondary loop, the secondary circuit comprises at least a first partial circuit with a cooling device, at least a second partial circuit with a heating device, at least a third partial circuit with a supply battery, and at least a fourth partial circuit with a supply power electronic device and passing through the heat exchanger. The thermal management system further includes a control device in which the main circuit has at least one indirect evaporator and at least one indirect condenser, a plurality of pumps are provided in the system for driving fluid flow in part of the circuits, and a maximum of five control valves are controlled in the system for controlling fluid flow. A vehicle having the thermal management system and a method for operating the thermal management system are further provided. 提供一种用于电池供电的电动车辆的热管理系统，系统包括主回路和二次回路，二次回路至少包括具有冷却装置的第一部分回路、至少包括具有加热装置的第二部分回路、至少包括供应电池的第三部分回路