METHOD AND SYSTEM FOR CONTROLLING A TURBOCHARGED ENGINE DURING AN UPSHIFT
    1.
    发明申请
    METHOD AND SYSTEM FOR CONTROLLING A TURBOCHARGED ENGINE DURING AN UPSHIFT 有权
    在UPS中控制涡轮发动机的方法和系统

    公开(公告)号:US20160084159A1

    公开(公告)日:2016-03-24

    申请号:US14787071

    申请日:2014-04-29

    Applicant: SCANIA CV AB

    Abstract: A method for propulsion of a vehicle (100), the vehicle (100) has a combustion engine (101) and a gearbox (103) that can be adjusted to a number of gear ratios for the transfer of force between the combustion engine (101) and at least one driving wheel (113, 114). The engine (101) combustion chamber has at least one inlet for supply of combustion gas and at least one outlet for evacuation of exhaust gas from the combustion chamber, a turbocharger unit (203) for pressurizing the combustion gas in the combustion chamber. During a change of gear from a first higher to a second lower gear ratio, wherein the rate of revolution of the combustion engine (101) is reduced from a first rate to a second rate, increasing the pressure (Put) at the chamber outlet (202) at least through the use of the turbocharger unit for constriction of the exhaust gas flow to reduce the pressure (Pin) at the combustion gas through the opening of a first valve (221) and, when the rate of revolution (n) of the combustion engine (101) has at least partially fallen towards the second rate of revolution (n2), controlling the turbocharger unit (203) such that the combustion gas pressure (Pin) is increased. Also a system and a vehicle are disclosed.

    Abstract translation: 一种用于推进车辆(100)的方法,所述车辆(100)具有内燃机(101)和变速箱(103),所述内燃机(101)和变速箱(103)可以被调节到用于在内燃机(101)之间传递力的多个齿轮比 )和至少一个驱动轮(113,114)。 发动机(101)燃烧室具有用于供应燃烧气体的至少一个入口和用于从燃烧室排出废气的至少一个出口,用于对燃烧室中的燃烧气体加压的涡轮增压器单元(203)。 在齿轮从第一高速变化到第二低速传动比期间,其中内燃机(101)的转速从第一速率降低到第二速率,增加室出口处的压力(Put) 202),至少通过使用涡轮增压器单元来缩小排气流量,以通过第一阀(221)的打开来减小燃烧气体处的压力(Pin),并且当转速(n) 内燃机(101)至少部分地朝向第二转速(n2)下降,控制涡轮增压器单元(203)使得燃烧气体压力(Pin)增加。 还公开了一种系统和车辆。

    CONTROL ARRANGEMENT AND METHOD FOR CONTROLLING OPERATION OF AN INTERNAL COMBUSTION ENGINE

    公开(公告)号:US20210396186A1

    公开(公告)日:2021-12-23

    申请号:US17341442

    申请日:2021-06-08

    Applicant: Scania CV AB

    Abstract: The invention relates to a method of controlling a variable valve timing arrangement of an internal combustion engine, the variable valve timing arrangement being arranged to control the timing of an intake valve and an exhaust valve of the internal combustion engine, the method comprising: controlling the variable valve timing arrangement so as to delay the intake valve lifts and to advance the exhaust valve lifts in response to at least one parameter representative of a current load of the internal combustion engine passing a certain threshold value, thereby indicating that the internal combustion engine is operated in a low load state The invention relates also to a computer program product comprising program code for a computer for implementing a method according to the invention. The invention relates also to a control arrangement and a vehicle comprising the control arrangement.

    METHOD AND SYSTEM FOR CONTROLLING A TURBOCHARGED ENGINE DURING AN UPSHIFT
    3.
    发明申请
    METHOD AND SYSTEM FOR CONTROLLING A TURBOCHARGED ENGINE DURING AN UPSHIFT 有权
    在UPS中控制涡轮发动机的方法和系统

    公开(公告)号:US20160138495A1

    公开(公告)日:2016-05-19

    申请号:US14787066

    申请日:2014-04-29

    Applicant: SCANIA CV AB

    Abstract: A method for propulsion of a vehicle (100): The vehicle (100) includes a combustion engine (101), and a gearbox (103) that can be adjusted to a number of gear ratios for transfer of force between the combustion engine (101) and at least one driving wheel (113, 114), at least one combustion chamber with at least one inlet for the supply of combustion gas and at least one outlet for the evacuation of an exhaust gas flow that has resulted from combustion in the combustion chambers and a turbocharger unit (203) for pressurizing the combustion gas. In the method, during the change of gear from a first higher gear ratio to a second lower gear ratio, the rate of revolution of the combustion engine (101) is reduced, to control the turbocharger unit such that the pressure of the combustion gas is reduced, to increase the pressure at the outlet by constriction of the exhaust gas flow, and when the rate of revolution of the combustion engine (101) has at least partially fallen towards a second rate of revolution, to control the turbocharger unit such that the combustion gas pressure is increased. Also a system and a vehicle including the system.

    Abstract translation: 一种用于车辆(100)的推进的方法:所述车辆(100)包括内燃机(101)和齿轮箱(103),所述变速箱(103)可以被调整到多个齿轮比以在所述内燃机(101) )和至少一个驱动轮(113,114),至少一个具有用于供应燃烧气体的至少一个入口的燃烧室和用于排出由燃烧中的燃烧引起的废气流的至少一个出口 室和用于对燃烧气体加压的涡轮增压器单元(203)。 在该方法中,在将齿轮从第一高速齿轮比变更为第二低速比时,内燃机(101)的转速降低,以控制涡轮增压器单元,使得燃烧气体的压力为 减少,以通过排气流的压缩来增加出口处的压力,并且当内燃机(101)的转速至少部分地朝向第二转速下降时,以控制涡轮增压器单元,使得 燃烧气体压力增加。 还有一种包括该系统的系统和车辆。

    CYLINDER DETECTION IN A FOUR-STROKE INTERNAL COMBUSTION ENGINE

    公开(公告)号:US20200025123A1

    公开(公告)日:2020-01-23

    申请号:US16465796

    申请日:2017-11-28

    Applicant: Scania CV AB

    Abstract: An arrangement for cylinder detection in a four-stroke internal combustion engine is disclosed. The arrangement comprises a first disc connected to a crankshaft, the first disc comprising a first mark (M11-M13) within each an interspace angle (α), and a second disc connected to a camshaft and comprising one second mark (M21-M26) per number of cylinders. The first mark (M11-M13) is arranged on a first disc, or the plurality of first marks (M11-M13) are arranged in relation to each other on the first disc, and the second marks (M21-M26) are arranged in relation to each other on the second disc such that for each interspace angle (α) the relevant first mark (M11-M13) is detectable by a first sensor and the relevant second mark (M21-M26) is detectable by a second sensor at different relative rotational positions between the first disc and the second disc.

    METHOD FOR ESTIMATING A TORQUE GENERATED BY AN INTERNAL COMBUSTION ENGINE
    7.
    发明申请
    METHOD FOR ESTIMATING A TORQUE GENERATED BY AN INTERNAL COMBUSTION ENGINE 审中-公开
    用于估计由内燃机产生的扭矩的方法

    公开(公告)号:US20160069768A1

    公开(公告)日:2016-03-10

    申请号:US14889115

    申请日:2014-06-02

    Applicant: SCANIA CV AB

    Abstract: Method for estimation of a mean torque generated by a combustion engine with at least two cylinders, comprising to generate an engine speed vector, wherein several measuring values representing the instantaneous engine speed of the engine, are registered, to determine the respective n:th highest and the n:th lowest value of the engine speed vector, where 2≦n≦x/2, where x is the number of measuring values associated with the respective cylinder in the engine speed vector, to calculate the difference between the two values determined in step b, to generate a signal E representing the differences obtained as function of time, and to estimate the torque generated by the motor as a function T dependent at least on the signal E.

    Abstract translation: 用于估计具有至少两个气缸的内燃机产生的平均转矩的方法,包括产生发动机转速矢量,其中记录了表示发动机的瞬时发动机转速的几个测量值,以确定相应的第n个最高 和发动机转速矢量的第n个最低值,其中2≦̸ n≦̸ x / 2,其中x是与发动机转速矢量中的相应气缸相关联的测量值的数量,以计算确定的两个值之间的差 在步骤b中,产生表示作为时间函数获得的差的信号E,并且至少根据信号E来估计由电动机产生的扭矩作为函数T。

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