Patent ID: 6313977
Filing Date: 2001-11-06
Classification: F16H

Abstract:
A circuit configuration for regulating a current fed to an electromechanical component in a motor vehicle, including a coil current for a hydraulic pressure regulating valve of an automatic motor vehicle transmission, the circuit configuration comprising:a circuit carrier formed of a ceramic material;conductor tracks disposed on said circuit carrier;components disposed on said circuit carrier for controlling the electromechanical component;a current measuring resistor applied on said circuit carrier as a thick-film resistor having a temperature-dependent resistance, said current measuring resistor outputting a first signal for evaluation during a current regulation process;a temperature sensor for detecting a transmission oil temperature and thermally coupled to said current measuring resistor and applied on said carrier circuit, said temperature sensor outputting a second signal; anda control unit receiving the first signal and the second signal, said control unit using said second signal from said temperature sensor for compensating for the temperature-dependent resistance of said current measuring resistor.