Patent ID: 7066144
Filing Date: 2006-06-27
Classification: F02D,Y02T

Abstract:
1. A control device for a diesel engine comprising an EGR passage for connecting an intake passage and an exhaust passage with each other, an EGR valve provided in the EGR passage, and an intake throttle valve provided in the intake passage at an upstream side of a connection part with the EGR passage, comprising: operational state detection means for detecting an operational state of the diesel engine; first control means for controlling opening and closing of the intake throttle valve and the EGR valve to adjust an intake air volume if the operational state detection means detects a normal operational state; and second control means for controlling the opening degree of the intake throttle valve at a predetermined constant opening degree and for controlling opening and closing of the EGR valve to adjust the intake air volume, if the operational state detection means detects a predetermined operational state.