Method for suppression of reception interference of radio reception caused by electrical machine e.g. electric operated window, involves operating motor with corresponding pulse repetition rate excluding reception interference

摘要

At least one pulse repetition rate is in each case determined in the form of a pulse rate with assigned pulse repetition rate of supplied motor as an electrical machine for several radio frequencies as a reception frequency. If the radio reception device is operated with one of the frequencies as a reception frequency, the motor is operated with a pulse repetition rate which will not cause interference on that channel. Clock generator (60) produces a pulse rate using a pulse repetition rate set by a processor (46), to cause a soft start of a motor (54). After a time of e.g. 0,3 sec, a clock generator (50) switches off the generation of clock pulses and sets a constant rate at the output of DC voltage on its output. An Independent claim is included for a device for suppressing reception interference of vehicle radio.