排気浄化システムの電子制御装置

摘要

PROBLEM TO BE SOLVED: To provide an electronic control unit for an exhaust emission control system for determining adhesion of urea to a motor by using a simple configuration by using torque of the motor for driving an urea water pump.;SOLUTION: An electronic control unit 30 is used for an exhaust emission control system for reducing nitrogen oxide included in exhaust gas of an internal combustion engine. The electronic control unit 30 includes a torque calculation section 32 and a determination section 36. The torque calculation section 32 acquires torque generated by a motor 21 for driving an urea water pump 15 as motor torque. When the motor torque calculated by the torque calculation section 32 is larger than preset set torque, the determination section 36 determines that urea adheres to the motor 21.;SELECTED DRAWING: Figure 1;COPYRIGHT: (C)2019,JPO&INPIT