公开(公告)号：US20220145840A1

公开(公告)日：2022-05-12

申请号：US17453972

申请日：2021-11-08

Applicant: Robert Bosch GmbH

Inventor： Stefan Bollinger ,  Stefan Nonnenmacher ,  Daniel Heitz ,  Gabriel Iran ,  Kilian Bucher ,  Michael Kutter ,  Patrick Thum

IPC: F02M65/00 ,  G05B13/02

Abstract: A method for ascertaining a variable characterizing a flow rate of a fuel injector during an operation of an internal combustion engine, to which the fuel injector is assigned. At least two input values for a data-based model are ascertained, and at least one output value is determined with the aid of the data-based model, on the basis of which a value for the variable characterizing the flow rate of the fuel injector is ascertained. The data-based model combines at least two methods differing from one another for ascertaining a variable characterizing a flow rate of a fuel injector.

公开(公告)号：US09803579B2

公开(公告)日：2017-10-31

申请号：US14833797

申请日：2015-08-24

Applicant: Robert Bosch GmbH

Inventor： Daniel Heitz ,  Peter Landgraf ,  Holger Rapp ,  Traugott Degler ,  Lars Engelfried ,  Thomas Becker

IPC: F02D41/24 ,  F02D41/38

CPC classification number: F02D41/248 ,  F02D41/2445 ,  F02D41/2467 ,  F02D41/2477 ,  F02D41/3836 ,  F02D2200/0602

Abstract: In a method for adapting at least one injector of an injection system, in particular of a common-rail injection system of an internal combustion engine of a motor vehicle, where injections take place based on a characteristics map with at least two input variables and at least one output variable, a transition is carried out into a learning mode in which only discrete values are permitted for one of the at least two input variables of the characteristics map.

公开(公告)号：US11506165B2

公开(公告)日：2022-11-22

申请号：US17453972

申请日：2021-11-08

Applicant: Robert Bosch GmbH

Inventor： Stefan Bollinger ,  Stefan Nonnenmacher ,  Daniel Heitz ,  Gabriel Iran ,  Kilian Bucher ,  Michael Kutter ,  Patrick Thum

IPC: F02M65/00 ,  F02D41/14 ,  F02D41/24 ,  G05B13/02

Abstract: A method for ascertaining a variable characterizing a flow rate of a fuel injector during an operation of an internal combustion engine, to which the fuel injector is assigned. At least two input values for a data-based model are ascertained, and at least one output value is determined with the aid of the data-based model, on the basis of which a value for the variable characterizing the flow rate of the fuel injector is ascertained. The data-based model combines at least two methods differing from one another for ascertaining a variable characterizing a flow rate of a fuel injector.