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    Heterogeneous fuel injector driver topologies
    1.
    发明授权
    Heterogeneous fuel injector driver topologies 有权

    公开(公告)号：US12049852B1

    公开(公告)日：2024-07-30

    申请号：US18501164

    申请日：2023-11-03

    申请人： Cummins Inc.

    发明人： Roland Echague ,  Viren Vilassinha Pardeshi ,  Sarang Gupta ,  Ruchir Shah ,  Harshada Chaitanya Suryawanshi

    IPC分类号： F02D41/30 ,  F02D41/26

    CPC分类号： F02D41/3094 ,  F02D41/26 ,  F02D41/3005

    摘要： An apparatus includes a housing containing a microcontroller and injector driver circuitry including a first integrated circuit operatively coupled with and controllable by the microcontroller, a first plurality of switching devices operatively coupled with and controllable by the first integrated circuit, second injector driver circuitry including a second integrated circuit operatively coupled with and controllable by the microcontroller and a second plurality of switching devices operatively coupled with and controllable by the second integrated circuit and third injector driver circuitry comprising a third integrated circuit operatively coupled with and controllable by the microcontroller and a third plurality of switching devices operatively coupled with and controllable by the third integrated circuit. Each of the first, second, and third pluralities of switching devices includes a set of switches configured to drive a respective bank of multiple boosted injectors one or more sets of switches configured to drive a respective single unboosted injector.

    OPTIMIZATION OF A METHOD FOR CONTROLLING AN INTERNAL COMBUSTION ENGINE
    2.
    发明公开
    OPTIMIZATION OF A METHOD FOR CONTROLLING AN INTERNAL COMBUSTION ENGINE 审中-公开

    公开(公告)号：US20240093657A1

    公开(公告)日：2024-03-21

    申请号：US18264403

    申请日：2022-03-04

    申请人： VITESCO TECHNOLOGIES GMBH

    发明人： Jonathan LORRE ,  Stéphane ELOY

    IPC分类号： F02D41/26 ,  F02D41/06

    CPC分类号： F02D41/26 ,  F02D41/062 ,  F02D2250/12

    摘要： A method for managing an engine for which segment tasks are initiated at a moment referred to as “segment”, in order to determine setpoint values which must be available before a predetermined angular time, having the following steps: a) executing a segment task; b) determining the difference between the angular starting time for application of the setpoints and the position corresponding to the availability of the setpoint values; c) comparing the difference determined in step b) with a lower difference value and a greater difference value; and d) modifying the segment if the difference determined in step b) is not between the lower and greater difference values, the position of the segment being advanced if the difference determined in b) is less than the lower difference value and the position of the segment being delayed if the difference determined in b) is greater than the greater difference value.

    Engine control system
    7.
    发明授权
    Engine control system 有权

    公开(公告)号：US11847868B2

    公开(公告)日：2023-12-19

    申请号：US17957909

    申请日：2022-09-30

    申请人： Joshuah W. Gray

    发明人： Joshuah W. Gray

    IPC分类号： G07C5/00 ,  F02D41/24 ,  G01S19/42 ,  G07C5/08 ,  F02D41/26

    CPC分类号： G07C5/008 ,  F02D41/2487 ,  F02D41/26 ,  G01S19/42 ,  G07C5/0825 ,  F02D2200/04 ,  F02D2200/501

    摘要： A system and method for monitoring vehicle performance and updating engine control parameters, which provides a solution to the problem of tuning engine control parameters for a vehicle. The core components of the invention are an engine controller coupled to an interface device which communicates with a remote device. Generally speaking, the components are configured as follows: the engine controller receives signals from various sensors in a vehicle and the engine controller controls the engine based on engine control parameters and the signals from the sensors. The interface device monitors the engine control and sensor signals and transmits information to the remote device. The remote device receives the information and sends back updated engine control parameters. The interface device receives the updated engine control parameters and communicates with the engine controller to update the engine control parameters using the updated engine control parameters.

    Internal combustion engine control device
    9.
    发明授权
    Internal combustion engine control device 有权

    公开(公告)号：US11746719B2

    公开(公告)日：2023-09-05

    申请号：US17923657

    申请日：2021-02-05

    申请人： Hitachi Astemo, Ltd.

    发明人： Kunihiko Suzuki

    IPC分类号： F02D41/14 ,  F01N9/00 ,  F01N11/00 ,  F02D41/02 ,  F02D41/26

    CPC分类号： F02D41/1454 ,  F01N9/005 ,  F01N11/007 ,  F02D41/1441 ,  F02D41/1473 ,  F02D41/0235 ,  F02D41/1445 ,  F02D41/1446 ,  F02D41/1459 ,  F02D41/1495 ,  F02D41/26

    摘要： To keep medium purification efficiency at a high level and prevent deterioration of emission performance. An aspect of the present invention includes: a downstream equivalence ratio calculation unit that calculates a catalyst downstream exhaust gas equivalence ratio by using a catalyst statistical model that receives at least a detection value of an air-fuel ratio sensor on an upstream side of a catalyst and outputs a catalyst downstream exhaust gas equivalence ratio; an oxygen output calculation unit that calculates an output value of an oxygen sensor by using an oxygen sensor statistical model that receives the catalyst downstream exhaust gas equivalence ratio and outputs an output value of the oxygen sensor on the downstream side of the catalyst; a downstream equivalence ratio correction unit that corrects the catalyst downstream exhaust gas equivalence ratio calculated by the downstream equivalence ratio calculation unit based on a calculation result of the oxygen output calculation unit and the detection value of the oxygen sensor; and an air-fuel ratio control unit that controls an air-fuel ratio of an air-fuel mixture of an internal combustion engine based on the corrected catalyst downstream exhaust gas equivalence ratio and air-fuel ratio target value.