Regulating device for regulating a cooling circuit for temperature control of a battery system having more than one heating and/or cooling element

A cooling circuit for a temperature control of a battery system including at least one of a plurality of heating elements and cooling elements, the cooling circuit comprising:

• a first regulating stage configured to:
• (i) determine, using one or more input variables, a cooling/heating power of the cooling circuit, or a variable proportional thereto;
• (ii) determine a first control deviation using the cooling/heating power or the variable proportional thereto;
• and
• (iii) output a controlled variable of the first regulating stage comprising a desired temperature of a coolant, or a variable proportional thereto, derived from the first control deviation;
• and
• a second regulating stage positioned in series with the first regulating stage and configured to:
• (i) receive the controlled variable of the first regulating stage as a control input;
• (ii) determine a second control deviation using the controlled variable of the first regulating stage;
• and
• (iii) output a controlled variable of the second regulating stage comprising an abstract signal derived from the second control deviation, the controlled variable of the second regulating stage provided to the at least one of a plurality of heating elements and cooling elements to regulate the cooling circuit.

A motor vehicle, comprising:

• at least one regulating device for regulating a cooling circuit for a battery including at least one of a plurality of heating elements and cooling elements, each regulating device including:
• a first regulating stage configured to:
• (i) determine, using one or more input variables, a cooling/heating power of the cooling circuit, or a variable proportional thereto;
• (ii) determine a first control deviation using the cooling/heating power or the variable proportional thereto;
• and
• (iii) output a controlled variable of the first regulating stage comprising a desired temperature of a coolant, or a variable proportional thereto, derived from the first control deviation;
• and
• a second regulating stage positioned in series with the first regulating stage and configured to:
• (i) receive the controlled variable of the first regulating stage as a control input;
• (ii) determine a second control deviation using the controlled variable of the first regulating stage;
• and
• (iii) output a controlled variable of the second regulating stage comprising an abstract signal derived from the second control deviation, the controlled variable of the second regulating stage provided to the at least one of a plurality of heating elements and cooling elements to regulate the cooling circuit.