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Method for determining temperature of magnetic coil of lifting piston pump in motor car, involves determining temperature rise of coil with respect to reference temperature of resistance and electrical resistance at reference temperature
Method for determining temperature of magnetic coil of lifting piston pump in motor car, involves determining temperature rise of coil with respect to reference temperature of resistance and electrical resistance at reference temperature
The method involves determining a power supply voltage of lifting magnets (223) of a lifting piston pump (22), and determining a coil current of a magnetic coil. Electrical resistance of the magnetic coil is calculated, and temperature rise of the magnetic coil is determined with respect to a reference temperature of the electrical resistance of the magnetic coil and electrical resistance of the magnetic coil at the reference temperature. The lifting magnets are controlled by a pulse width modulation. The voltage of the lifting magnets is adjusted by a lifting cylinder (222). Independent claims are also included for the following: (1) a computer program comprising a set of instructions for executing a method for determining temperature of a magnetic coil of a lifting piston pump (2) a computer program product comprising a set of instructions for executing a method for determining temperature of a magnetic coil of a lifting piston pump.
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