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    Gearbox with a PTO clutch with integrated shaft brake
    61.
    发明授权
    Gearbox with a PTO clutch with integrated shaft brake 有权

    公开(公告)号：US10315514B2

    公开(公告)日：2019-06-11

    申请号：US15527959

    申请日：2015-12-01

    Applicant: Scania CV AB

    Inventor： Daniel Häggström ,  Peer Norberg

    IPC: B60K17/28 ,  F16H37/04 ,  F16H3/091 ,  F16D13/52

    Abstract: The present invention relates to a device for a gearbox which comprises a main shaft, a counter shaft, a plurality of gearwheel pairs each comprises a primary gearwheel arranged on the counter shaft and a secondary gearwheel arranged on the main shaft and a PTO shaft. The device comprises a switch mechanism movably arranged to a first position in which the PTO shaft is disconnected from the counter shaft in a non-rotatable state, to a second position in which the PTO shaft is rotationally fixedly connected to the counter shaft, and to a neutral position in which the PTO shaft is in a rotatable state and disconnected from the counter shaft. The device comprises further a clutch mechanism able to provide a clutching connection between the counter shaft and the PTO shaft when the switch mechanism is in the first position and in the neutral position.

    Torque control of a vehicle powertrain based on a time derivative for a dynamic torque
    62.
    发明授权
    Torque control of a vehicle powertrain based on a time derivative for a dynamic torque 有权

    公开(公告)号：US10300919B2

    公开(公告)日：2019-05-28

    申请号：US15313846

    申请日：2015-05-25

    Applicant: SCANIA CV AB

    Inventor： Karl Redbrandt ,  Martin Evaldsson

    IPC: B60W10/00 ,  B60W30/20 ,  B60W50/06 ,  F02D41/02 ,  F02D41/10 ,  F02D41/14 ,  B60W30/18 ,  B60W30/188 ,  B60W10/06

    Abstract: A desired change of a time derivative of dynamic torque (Tqfw), provided to an output shaft from an engine in a vehicle, from a current value to a new desired value is determined. A current rotational speed difference (Δωpres) is determined between a first end of the powertrain in a vehicle, which rotates with a first rotational speed (ω1), and a second end of the powertrain, which rotates with a second rotational speed. The first rotational speed (ω1) is then controlled on the basis of the desired value of the time derivative for the dynamic torque (Tqfw), a spring constant (k) related to a torsional compliance in the powertrain, and the determined current rotational speed difference {Δωpres). Through control of the first rotational speed, the current value for the time derivative for the dynamic torque is also indirectly controlled towards the desired value.

    ARRANGEMENT FOR AN EXHAUST SYSTEM OF A COMBUSTION ENGINE COMPRISING TWO WHR BOILERS
    63.
    发明申请
    ARRANGEMENT FOR AN EXHAUST SYSTEM OF A COMBUSTION ENGINE COMPRISING TWO WHR BOILERS 审中-公开

    公开(公告)号：US20190153904A1

    公开(公告)日：2019-05-23

    申请号：US16091405

    申请日：2017-03-31

    Applicant: SCANIA CV AB

    Inventor： Zoltan KARDOS ,  Stefan TREUTIGER ,  Thomas SEDERHOLM

    IPC: F01K23/06 ,  F02G5/02 ,  F01N3/20 ,  F01N5/02 ,  F01N9/00 ,  F01K15/02 ,  F01K23/10

    Abstract: The present invention relates an arrangement for an exhaust system of a combustion engine. The arrangement comprises at least one exhaust treatment component arranged in the exhaust system, a first boiler of a Waste Heat Recovery System (WHR) system arranged in an upstream position of the exhaust treatment component in the exhaust system, a second boiler of the WHR system arranged in a downstream position of the exhaust treatment component in the exhaust system and a working medium circuit circulating a working medium in the WHR system. The working medium circuit comprises a first conduit directing the working medium to the first boiler, a first bypass conduit directing the working medium past the first boiler, and a first valve device configured to regulate the working medium flow through the first conduit and the first bypass conduit.

    Exhaust treatment system and method for treatment of an exhaust stream
    64.
    发明授权
    Exhaust treatment system and method for treatment of an exhaust stream 有权

    公开(公告)号：US10273852B2

    公开(公告)日：2019-04-30

    申请号：US15120101

    申请日：2015-02-27

    Applicant: Scania CV AB

    Inventor： Magnus Nilsson ,  Henrik Birgersson

    IPC: F01N13/00 ,  F01N3/021 ,  F01N3/10 ,  F01N3/20 ,  F01N3/035 ,  B01D46/00 ,  B01D53/94 ,  F01N11/00 ,  F01N9/00 ,  F01N3/023

    Abstract: An exhaust treatment system comprising: a first dosage device to supply a first additive into an exhaust stream; a first reduction catalyst device downstream of said first dosage device, including a slip-catalyst primarily for reduction of nitrogen oxides (NOx) through the use of the additive, and secondarily for oxidation of additive; an oxidation catalyst downstream of said first reduction catalyst device; a particulate filter downstream of said oxidation catalyst; a second dosage device downstream of said particulate filter to supply a second additive into said exhaust stream; a second reduction catalyst device downstream of said second dosage device for a reduction of nitrogen oxides in said exhaust stream using at least one of said first and said second additive.

    Method and system for detection of torque deviations of an engine in a vehicle
    65.
    发明授权
    Method and system for detection of torque deviations of an engine in a vehicle 有权

    公开(公告)号：US10247124B2

    公开(公告)日：2019-04-02

    申请号：US15580316

    申请日：2016-05-26

    Applicant: Scania CV AB

    Inventor： Björn Johansson ,  Carl Svärd

    IPC: F02D41/26 ,  F02D41/14 ,  B60K28/16 ,  B60W10/06 ,  F02D41/22 ,  G01M15/04 ,  F02D41/28

    Abstract: A method and a system for detection of torque deviations of an engine (101) in a vehicle (100). A measurement (201) is made of actual measured values Dact related to a behavior of at least one parameter which is related to an actual torque Meng_act delivered by the engine (101). This actual torque Meng_act is delivered here by the engine (101) in consequence of a torque Meng_req demanded from the engine (101). A comparison (202) is then made of the actual measured values Dact which are related to the behavior of the at least one parameter with previously determined measured values Dref of correspondingly at least one respective parameter related to the actual torque Meng_act. The previously determined measured values Dref will here have been determined during normal operation of the vehicle (100). Detection is then made of whether the actual measured actual torque Meng_act deviates from the demanded torque Mengj-eq. The detection is based here on the comparison of the actual measured values Dact with the previously determined measured values Dref.

    A COOLING SYSTEM FOR A COMBUSTION ENGINE AND A WHR SYSTEM
    67.
    发明申请
    A COOLING SYSTEM FOR A COMBUSTION ENGINE AND A WHR SYSTEM 审中-公开

    公开(公告)号：US20180355781A1

    公开(公告)日：2018-12-13

    申请号：US16061353

    申请日：2017-01-11

    Applicant: Scania CV AB

    Inventor： Zoltan KARDOS ,  Ola HALL

    IPC: F01P3/20 ,  F01K23/14 ,  F02G5/02 ,  F01K9/00

    Abstract: A cooling system for a combustion engine and a WHR-system in a vehicle (1) includes a first line (23) directing coolant at a first temperature (T1) to a condenser (18) of the WHR system, a second line (24) directing coolant at a second temperature (T2) to the condenser (18), a valve arrangement (25, 26, 29) by which the flow rate of the coolant in at least one of the lines (23, 24) is adjustable and a control unit (20) configured to control the valve arrangement (25, 26, 29) such that the coolant directed to the condenser (18) from the lines (23, 24) has a temperature and a flow rate which results in a cooling of the working medium in the condenser (18) to a predetermined condensation temperature/pressure at the actual operating condition.

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