Cooling system, vehicle comprising such cooling system and a method of cooling a battery

A cooling system for controlling a temperature of a battery inside a specific temperature interval, the cooling system comprising:

• a chiller and a chiller line arranged in heat exchange with said chiller;
• a heat source and a high temperature line arranged in heat exchange with said heat source;
• a battery line arranged in heat exchange with the battery;
• at least one pump, arranged to in operation convey a cooling fluid in at least one of said chiller line, high temperature line, or battery line;
• a condenser and a refrigeration circuit arranged in heat exchange with said condenser, wherein a working medium is arranged to, in operation, be circulated in said refrigeration circuit,
• wherein the chiller line is selectively connectable into heat exchange with the battery line so as to provide cooling of the battery,
• wherein the high temperature line is selectively connectable into heat exchange with the battery line to heat the battery, wherein the working medium of the refrigeration circuit is arranged to be cooled by heat exchange with the cooling fluid in the high temperature line in said condenser, and
• wherein the refrigeration circuit is arranged by the chiller, said chiller being arranged to heat the working medium of the refrigeration circuit by heat exchange with the cooling fluid in the chiller line, which cooling fluid is thereby cooled;
• a mixing line operably fluidly connected to the chiller line, the battery line, and the high temperature line;
• and
• at least one valve connected with the mixing line, wherein the chiller line and the battery line are directly connected to the at least one valve, and wherein in a selected mode, the at least one valve fluidly connects the chiller line and the high temperature line with the battery line via the mixing line, such that the same cooling fluid may be circulated between all of said chiller line, high temperature line, and battery line.