Thermal management system with secondary circuit

Methods and systems are provided for a thermal management system for a battery-powered electric vehicle, which system comprises a primary circuit and a secondary circuit, which has at least a first partial circuit having a cooling device, at least a second partial circuit having a heating device, at least a third partial circuit supplying a battery and at least a fourth partial circuit supplying components of the power electronics and passing through a heat exchanger, and the thermal management system further comprises a controller, wherein the primary circuit has at least one indirect evaporator and at least one indirect condenser, a number of pumps are arranged in the system for driving a fluid flow in the partial circuits, and a maximum number of five control valves is controlled in the system for controlling the fluid flow.