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    • 51. 发明申请
    • METHOD FOR ADAPTION OF A MASS FLOW SENSOR
    • 适应大流量传感器的方法
    • WO2011119090A1
    • 2011-09-29
    • PCT/SE2011/050299
    • 2011-03-18
    • Scania CV AB (publ)STENLÅÅS, OlaTELBORN, Klas
    • STENLÅÅS, OlaTELBORN, Klas
    • F02D41/18F02M99/00F01N3/20F01N11/00
    • F01N3/22F01N3/0253F01N3/106F01N3/30F01N9/002F01N2560/06F01N2610/03F02D41/025F02D41/1446F02D41/18F02D41/2474F02D41/405Y02T10/26Y02T10/44Y02T10/47
    • Method for adaptation of a mass flow sensor (6) which is intended to measure the mass flow of air in an air intake (7) to a combustion engine (1), according to which method: - unburnt fuel is caused to accompany the exhaust gases produced by the engine to a fuel oxidation device (4) in order to be oxidised in the fuel oxidation device and cause an increase in temperature of the exhaust gases, - a temperature increase value which represents said increase in the temperature of the exhaust gases is determined, - a calculation value which represents the prevailing mass flow of air in the engine's air intake is determined on the basis of said temperature increase value and fuel mass flow values which represent respectively the mass flow of said unburnt fuel and the mass flow of fuel injected into and burnt in the engine, - said calculation value is compared with a corresponding measured value determined by means of the mass flow sensor, and - the mass flow sensor is adapted on the basis of the result of that comparison.
    • 用于调整质量流量传感器(6)的方法,该质量流量传感器旨在测量到内燃机(1)的空气入口(7)中的空气的质量流量,根据哪种方法: - 未燃燃料伴随排气 由发动机产生的燃料到燃料氧化装置(4)以在燃料氧化装置中被氧化并引起排气温度升高的温度增加值,其表示废气温度的所述升高 根据所述温度增加值和分别表示所述未燃燃料的质量流量和所述燃料质量流量的燃料质量流量值来确定表示发动机进气口中主要空气质量流量的计算值, 燃料喷射并燃烧在发动机中, - 将所述计算值与通过质量流量传感器确定的对应测量值进行比较,并且质量流量传感器基于 比较的结果。
    • 52. 发明申请
    • METHOD AND CONTROL DEVICE FOR DETERMINING MANIFOLD PRESSURE IN A MANIFOLD CONFIGURATION IN CONNECTION TO INDIVIDUAL CYLINDERS OF AN INTERNAL COMBUSTION ENGINE
    • WO2020005135A1
    • 2020-01-02
    • PCT/SE2019/050563
    • 2019-06-14
    • SCANIA CV AB
    • TSIRONAS, SotiriosAPELL, MagnusSTENLÅÅS, Ola
    • F02D41/14G01L23/24
    • The present invention relates to a method performed by a control device (100) for determining manifold pressure in a manifold configuration (M) in connection to individual cylinders (C1, C2, C3, C4, C5, C6) of an internal combustion engine. The method comprises the steps of: for calibration, creating a transfer function for each cylinder, the respective transfer function comprising pressure coefficient values for a set of operation parameters comprising a range of crank angle values and a range of engine speed values, local manifold pressure values in connection to an individual cylinder (C1, C2, C3, C4, C5, C6) and a manifold reference pressure value being detected for the range of crank angle values and a range of engine speed values as a basis for the creation of each transfer function. Each pressure coefficient value is based upon a ratio between a local manifold pressure value and a corresponding manifold reference pressure value. The method further comprises the steps of: storing the thus created transfer functions for the engine cylinders (C1, C2, C3, C4, C5, C6); and, during vehicle operation, determining the manifold pressure in connection to the individual cylinders (C1, C2, C3, C4, C5, C6) based upon pressure coefficient values of the thus stored transfer functions and corresponding detected manifold reference pressure values. The present invention also relates to a control device for determining manifold pressure in a manifold configuration in connection to individual cylinders of an internal combustion engine. The present invention also relates t o a v e h i c l e. The present invention also relates to a computer program and a computer readable medium.
    • 53. 发明申请
    • METHOD AND SYSTEM FOR USE WHEN CORRECTING SUPPLY OF AN ADDITIVE TO AN EXHAUST GAS STREAM
    • 用于修正排气气体添加剂供应时使用的方法和系统
    • WO2018013042A1
    • 2018-01-18
    • PCT/SE2017/050759
    • 2017-07-06
    • SCANIA CV AB
    • LUNDSTRÖM, MikaelSTENLÅÅS, Ola
    • F01N3/20B01D53/94F01N3/36
    • The present invention relates to a method for correcting a supply of additive to an exhaust gas stream (303) resulting from combustion in an internal combustion engine (101). A first aftertreatment component (310) being arranged for oxidation of nitric oxide (NO) into nitrogen dioxide (NO 2 ), and a reduction catalytic converter (332) being arranged downstream said first aftertreatment component (310). Additive is supplied to said exhaust gas stream (303) for reduction of nitrogen oxides (NO x ) in said reduction catalytic converter (332), the additive being supplied in proportion to an occurrence of nitrogen oxides (NO x ) in said exhaust gas stream (303), said proportion being subject to correction. The method includes: - supplying unburned fuel to said exhaust gas stream (303) upstream said first aftertreatment component (310) to reduce oxidation of nitric oxide (NO) into nitrogen dioxide (NO 2 ) in said first aftertreatment component (310), and - correcting said supply of additive to said exhaust gas stream (303) when supplying unburned fuel to said exhaust gas stream (303).
    • 本发明涉及一种用于校正向由内燃机(101)中的燃烧产生的排气流(303)供应添加剂的方法。 布置用于氧化一氧化氮(NO)为二氧化氮(NO 2)的第一后处理部件(310)和布置在所述第一后处理部件(310)下游的还原催化转化器(332) 。 将添加剂供应到所述废气流(303)中以还原所述还原催化转化器(332)中的氮氧化物(NO x),所述添加剂与氮氧化物(NO 所述排气流(303)中的所述比例经历校正。 该方法包括: - 向所述第一后处理部件(310)上游的所述废气流(303)供应未燃烧的燃料,以减少所述第一后处理部件(310)中的一氧化氮(NO)氧化成二氧化氮(NO 2) (310);以及 - 当向所述排气流(303)供应未燃燃料时,校正所述排气流(303)的所述添加剂供应。
    • 54. 发明申请
    • METHOD AND SYSTEM FOR STARTING AN INTERNAL COMBUSTION ENGINE
    • 用于启动内燃机的方法和系统
    • WO2018013040A1
    • 2018-01-18
    • PCT/SE2017/050757
    • 2017-07-06
    • SCANIA CV AB
    • HÖCKERDAL, ErikSTENLÅÅS, Ola
    • F01L13/08F02D41/06F02N19/00
    • F01L13/08F02D41/062F02D2041/001F02N11/0848F02N19/004F02N2200/022
    • The present invention relates to a method for starting an internal combustion engine (101), said internal combustion engine (101) having a plurality of combustion chambers (209), wherein, when starting said internal combustion engine (101), engine cranking means (111) accelerates a crankshaft (112) of said internal combustion engine (101). The method includes, when accelerating said crankshaft (112) using said engine cranking means (111): - with fuel injection turned off, controlling intake valves (211) and/or exhaust valves (213) to reduce compression in said combustion chambers (209), - when said crankshaft (112) has been accelerated to a first speed of rotation, control intake valves (211) and/or exhaust valves (213) to increase compression in said combustion chambers (209) in relation to said reduced compression, - when compression in said combustion chambers (209) is increased, commence fuel injection, - wherein, when said first speed of rotation is reached and compression is increased, speed of rotation of said crankshaft is controlled to decrease so that resistance against rotation caused by compression is at least partly overcome by consuming kinetic energy accumulated by said acceleration.
    • 本发明涉及一种用于启动内燃机(101)的方法,所述内燃机(101)具有多个燃烧室(209),其中,当启动所述内燃机 (101)中,发动机起动装置(111)加速所述内燃机(101)的曲轴(112)。 该方法包括:当使用所述发动机起动装置(111)加速所述曲轴(112)时: - 在关闭燃料喷射的情况下,控制进气门(211)和/或排气门(213)以减小所述燃烧室(209)中的压缩 ), - 当所述曲轴(112)已经加速到第一转速时,控制进气门(211)和/或排气门(213)以相对于所述减小的压缩增加所述燃烧室(209)中的压缩, - 当所述燃烧室(209)中的压缩增加时,开始燃料喷射, - 其中,当达到所述第一旋转速度并且压缩增加时,所述曲轴的旋转速度被控制为减小,从而对由 通过消耗由所述加速度累积的动能来至少部分地克服压缩。
    • 57. 发明申请
    • METHOD AND SYSTEM FOR FUEL PUMP REGULATION
    • 燃油泵调节方法与系统
    • WO2016043652A1
    • 2016-03-24
    • PCT/SE2015/050971
    • 2015-09-17
    • SCANIA CV AB
    • STENLÅÅS, OlaJACOBSSON, SusannaELLNEFJÄRD, AndréJORQUES MORENO, Carlos
    • F02M37/08B60K15/077F02M37/18
    • F02M37/08F02M37/18
    • The present, invention relates to a method to control a fuel pump in a fuel system of a vehicle (100), wherein said vehicle (100) comprises a combustion engine (101) and a fuel supply system (204) associated with said combustion engine (101), wherein the vehicle (100) also comprises a first main tank. (215A) for drawing up fuel and a first fuel pump (212A; 210A) for use in connection with transfer of fuel between said first main tank (215A) and said fuel supply system (204), A second fuel pump (212B; 210B) is arranged to operate in parallel with said first fuel pump (212A; 210A) in connection with transfer of fuel between said first main tank (215A) and said fuel supply system (204), and the method comprises: - controlling the transfer of fuel with said first (212A; 210A) and second ( 212B; 210B) fuel pump, at least partly based on a representation of a total efficiency for said, first (212A; 210A) and second (212B; 210B) fuel pump, wherein said transfer of fuel also is controlled, based, on at least one parameter relating to the life span of said fuel pumps.
    • 本发明涉及一种用于控制车辆(100)的燃料系统中的燃料泵的方法,其中所述车辆(100)包括内燃机(101)和与所述内燃机相关联的燃料供应系统(204) (101),其中所述车辆(100)还包括第一主箱。 (215A)和用于与所述第一主油箱(215A)和所述燃料供给系统(204)之间的燃料传送结合使用的第一燃料泵(212A; 210A);第二燃料泵(212B; 210B) )与所述第一燃料泵(212A; 210A)并联运行,与所述第一主油箱(215A)和所述燃料供应系统(204)之间的燃料传送相关联,并且所述方法包括: - 控制所述第一燃料泵 至少部分地基于所述第一(212A; 210A)和第二(212B; 210B)燃料泵的总效率的表示,所述第一(212A; 210A)和第二(212B; 210B)燃料泵的燃料,其中 基于与所述燃料泵的使用寿命有关的至少一个参数来控制所述燃料转运。
    • 58. 发明申请
    • METHOD AND DEVICE AT COMPRESSION BRAKING OF A VEHICLE
    • 车辆压缩制动的方法和装置
    • WO2015195037A1
    • 2015-12-23
    • PCT/SE2015/050699
    • 2015-06-16
    • SCANIA CV AB
    • STENLÅÅS, OlaNORDIN, Mikael
    • F02D13/04F01L13/06G01M15/12
    • F02D13/04F01L13/06F02D35/024F02D41/0005F02D41/123F02D41/22F02D2041/001F02D2200/0406F02D2200/101F02D2200/1012Y02T10/42
    • A method at compression braking of a vehicle comprising a combustion engine (1) with at least one cylinder (6), and a device (4) adapted for diagnosis and control of compression braking, The method comprising the steps: - during a working cycle of the combustion engine (1) when compression braking occurs, detecting movements of a cylinder head (8) belonging to said cylinder (6) or of parts in the engine (1) adjacent thereto, which movements have been generated by pressure changes or activation and deactivation of compression braking, and - determining, based on said detected pressure changes, or estimating, based on said movements generated by said activation or deactivation, braking torque caused by the compression braking. The calculated or estimated braking torque may in the current and/or in a later working cycle be used to control the compression braking.
    • 一种包括具有至少一个气缸(6)的内燃机(1)和适于诊断和控制压缩制动的装置(4)的车辆的压缩制动方法,所述方法包括以下步骤: - 在工作循环期间 在发生压缩制动时检测内燃机(1)的运动,检测属于所述气缸(6)的气缸盖(8)或与其相邻的发动机(1)中的部件的运动,这些运动是通过压力变化或启动产生的 以及 - 禁止压缩制动,以及 - 基于所述检测到的压力变化确定或基于由所述启动或停用产生的所述运动来估计由压缩制动引起的制动转矩。 计算或估计的制动转矩可以在当前和/或后续工作循环中用于控制压缩制动。