| 摘要 |
PURPOSE: An apparatus for controlling the reproducing of a DPF(diesel particulate filter trap) is provided to reduce the cost by reducing the number of FET by a half and to prevent the current from introducing into a heater when a heater driving section is broken. CONSTITUTION: An apparatus for controlling the reproducing of a DPF comprises an RPM sensor(102), a pressure sensor(104), a temperature sensor(106), a potentiometer(108), an ECU(110), a power supply(112), a current detecting section(116), and a filter reproducing section(130). The filter reproducing section(130) includes a heater driving section(114), first and second relays(118,120), the first canister(122) and the second canister(124). The RPM sensor(102) detects the RPM of an engine when a diesel engine ignites and send the RPM data of the engine to the ECU(110). The pressure sensor(104) detects the pressure in an exhaust pipe and sends the pressure data to the ECU(110). The temperature sensor(106) is installed at an inlet of the filter to detect the temperature at the inlet of the filter. The potentiometer(108) sends position information of an accelerator to the ECU(110). The ECU(110) sequentially operates the heaters(H1-H22) consisting of the first and second canisters(122,124). |
