FILTER REPRODUCTION SYSTEM, ECU AND FILTER REPRODUCTION PROGRAM

    公开(公告)号:EP3444455A1

    公开(公告)日:2019-02-20

    申请号:EP17782096.6

    申请日:2017-02-09

    申请人: Bosch Corporation

    发明人: HATTORI Takayuki

    IPC分类号: F01N3/023 F01N3/18 F01N3/24

    摘要: The present invention proposes a filter regeneration system, an ECU, and a filter regeneration program capable of creating an efficient travel plan for a driver by notifying the driver of an estimated remaining DPF regeneration time. The filter regeneration system for a DPF collecting particulate matter includes: the ECU that controls filter regeneration processing for the DPF. The ECU calculates a remaining soot amount (Rp) at a current time point on the basis of a physical model indicative of an actual remaining soot amount, calculates a remaining soot amount (Rt) at the current time point on the basis of a time model indicative of a theoretical remaining soot amount, calculates an estimated remaining DPF regeneration time (Tp, Tt) at the current time point on the basis of larger one of the remaining soot amounts (Rp, Rt), and notifies the driver of the estimated remaining DPF regeneration time (Tp, Tt).

    SELECTIVE CATALYTIC REDUCTION SYSTEM
    4.
    发明授权
    SELECTIVE CATALYTIC REDUCTION SYSTEM 有权
    选择性催化还原体系

    公开(公告)号:EP2578861B1

    公开(公告)日:2018-03-07

    申请号:EP11786513.9

    申请日:2011-05-16

    IPC分类号: F02D45/00 F01N3/08

    摘要: An SCR system that can detect a NO x concentration accurately irrespective of an operation state of an engine is provided. The SCR system including: an SCR device 103 provided in an exhaust pipe 102 for an engine E; a dosing valve 104 that injects urea solution on an upstream side of the SCR device 103; a NO x sensor 110 provided in the exhaust pipe 102; and an urea solution injection control unit 127 that controls a urea solution injection quantity according to a NO x concentration value detected by the NO x sensor 110 includes a pressure estimation unit 131 that estimates a NO x sensor pressure that is a pressure inside the exhaust pipe 102 at a position where the NO x sensor 110 is provided, and a NO x concentration detection value correction unit 136 that corrects the NO x concentration value detected by the NO x sensor 110, according to the NO x sensor pressure estimated by the pressure estimation unit 131.