CONTROL SYSTEM OF DPF HEATER

摘要

PROBLEM TO BE SOLVED: To provide a control system of a DPF heater capable of reducing weight of wiring, capable of reducing labor and capable of setting voltage impressed on the heater high. SOLUTION: In this control system 1 of the DPF heater for regenerating a diesel particulate filter 2 by controlling current-carrying of the heater 3, the control system has a rectifying part 5 for rectifying an alternating current from an on-vehicle AC generator 4, a battery 6 charged with a rectified direct current and an electrical equipment load 7 connected to the rectifying part 5 and the battery 6. The DPF heater 3 is connected between power source lines 8 between the on-vehicle AC generator 4 and the rectifying part 5 via thyristors 9 and 10, and the current-carrying of the DPF heater 3 is controlled by controlling a phase of generated AC voltage.