| 摘要 |
An EGR apparatus for an IC engine (4) including an EGR duct (20) connecting the exhaust duct (16) of the engine (4) at a point downstream of an aftertreatment device (14) to the intake duct (12) at a point upstream of the supercharging compressor (10), an EGR cooler (23) and an EGR positive displacement compressor (24) along the EGR duct (20). The EGR compressor (24) is driven by an electric motor (25) which is controlled by a model-based control module (26) in response to an EGR flow rate request depending on operating parameters of IC engine (4). |
