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14 条记录 (耗时 0.012 秒)

    A METHOD AND A SYSTEM FOR EVALUATING AN EFFECTIVE COMPONENT CONTENT OF A REDUCING AGENT
    3.
    发明公开
    A METHOD AND A SYSTEM FOR EVALUATING AN EFFECTIVE COMPONENT CONTENT OF A REDUCING AGENT 审中-公开
    用于评估还原剂的有效组分含量的方法和系统

    公开(公告)号：EP3308109A1

    公开(公告)日：2018-04-18

    申请号：EP16807906.9

    申请日：2016-04-12

    申请人： Scania CV AB

    发明人： ZAMANI, Sebastian ,  SOMMANSSON, Joakim

    IPC分类号： G01F22/00 ,  F01N3/00 ,  F17C13/02 ,  G01F23/22

    摘要： A method for evaluating an effective component content (C) of a reducing agent for engine exhaust gas processing arranged in a container (205) in which a heat transfer provision arrangement (240) is provided, including steps of: determining (s410; s420) a prevailing volume (V) and temperature (T1) of the reducing agent in the container (205); determining (s430) a prevailing temperature (T2) of the heat transfer provision arrangement (240); determining (s440) a prevailing temperature (T3) of a medium surrounding the container (205); for a predetermined time period, determining (s450) a mean temperature change rate (Tprim) for the reducing agent; and determining (s460) the effective component content (C) of the reducing agent on the basis of the above determined parameters.

    METHOD AND DEVICE FOR TESTING A LIQUID
    4.
    发明公开
    METHOD AND DEVICE FOR TESTING A LIQUID 审中-公开
    方法和设备用于测试的液体

    公开(公告)号：EP2732280A1

    公开(公告)日：2014-05-21

    申请号：EP12810997.2

    申请日：2012-07-03

    申请人： Scania CV AB

    发明人： ZAMANI, Sebastian ,  STRÅÅT, Fredrik

    IPC分类号： G01N29/024

    CPC分类号： G01N29/024 ,  G01N29/326 ,  G01N2291/0217

    摘要： The invention relates to a measuring device (2) adapted to testing a liquid (4) used as reducing agent in connection with exhaust cleaning for exhaust gases from a combustion engine. The device comprises a temperature sensor (6) adapted to measuring the temperature in the liquid and an acoustic velocity measuring unit (8) adapted to measuring the acoustic velocity in the liquid. The temperature sensor is adapted to determining a first temperature T1 for the liquid and to delivering on the basis thereof a temperature signal (12) to a calculation unit (10); the acoustic velocity measuring unit (8) is adapted to determining a first acoustic velocity v1 for the liquid at the temperature T1 and to delivering on the basis thereof an acoustic velocity signal (14) to the calculation unit (10). The temperature sensor (6) is further adapted to determining a second temperature T2 for the liquid and to delivering on the basis thereof a temperature signal (12) to the calculation unit (10), which is adapted to calculating the absolute value of a temperature difference ?T between T1 and T2, i.e. ΔT = ΙT1-T2 Ι, and to comparing ΔT with a predetermined threshold value T
    TH . If ΔT exceeds T
    TH , a control signal (16) is delivered to the acoustic velocity measuring unit (8) to determine a second acoustic velocity v
    2 for the liquid at the temperature T2 and to deliver on the basis thereof an acoustic velocity signal (14) to the calculation unit (10), which is adapted to comparing v
    1 and v
    2 with respective first and second velocity reference values vref1 and v
    ref 2 for a reference liquid at the respective temperatures T1 and T2. On the basis of the result of the comparison an indicating signal (18) is generated to the effect that the liquid is approved if the measured values v
    1 and v
    2 are within approved velocity ranges for the reference values, but not approved if v
    1 and v
    2 are not within a said approved velocity ranges.

    DEVICE AND METHOD FOR FUNCTION DETECTION IN A FEED CONFIGURATION
    5.
    发明公开
    DEVICE AND METHOD FOR FUNCTION DETECTION IN A FEED CONFIGURATION 审中-公开
    装置和方法检测功能的馈线配置

    公开(公告)号：EP2630725A1

    公开(公告)日：2013-08-28

    申请号：EP11834711.1

    申请日：2011-10-21

    申请人： Scania CV AB

    发明人： ZAMANI, Sebastian ,  MARKUSSON, Christoffer

    IPC分类号： H02P29/02 ,  G01R19/165 ,  G01R31/34

    CPC分类号： G01R31/02 ,  G01R31/343 ,  G01R31/42 ,  H02P29/02

    摘要： The invention relates to a method for function detection in a feed configuration (230; 302a; 302b; 303a; 303b) which comprises feed lines (302a; 302b; 303a; 303b), an electronic conversion unit (310; 230) and a three-phase electric motor (230; 330). The method comprises the steps of: - detecting (s410) a response signal (S) in a feed line (301a; 301b) for the feed configuration (230; 302a; 302b; 303a; 303b), - detecting (s420) levels (v1-vn) of specific sections of said response signal (S), - comparing (s430) levels (v1-vn) thus detected of said specific sections of said response signal (S) with a predetermined threshold level (Th) over a predetermined period of time (T), and - determining (s440) an unwanted function of the feed configuration (230; 302a; 302b; 303a; 303b) if all of the levels (v1-vn) thus detected of said specific sections of said response signal (S) are below said predetermined threshold level (Th) over said predetermined period of time (T). The invention relates also to a computer programme product containing programme code (P) for a computer (200; 210) for implementing a method according to the invention. The invention relates also to a device and to a motor vehicle equipped with the device.

    METHOD AND SENSOR ARRANGEMENT FOR WHEEL TORQUE-BASED VEHICLE OPERATION
    6.
    发明公开
    METHOD AND SENSOR ARRANGEMENT FOR WHEEL TORQUE-BASED VEHICLE OPERATION 审中-公开

    公开(公告)号：EP4273008A1

    公开(公告)日：2023-11-08

    申请号：EP22171230.0

    申请日：2022-05-03

    申请人： Scania CV AB

    发明人： ZAMANI, Sebastian ,  LARSSON, Anders ,  WALLENTIN, Per ,  GUSTAFSSON, Tobias ,  HÄLLMAN, Oscar

    IPC分类号： B60W10/04 ,  B60W40/068 ,  G01L3/10

    摘要： The present disclosure relates to a method for operating a vehicle based on wheel torque. According to a first aspect, this disclosure proposes a method for operating a vehicle comprising a drivetrain. The method comprises determining S2, based on angular positions of one or more shafts of the drivetrain at different points along the drivetrain, a windup of the one or more shafts. The method further comprises estimating S3 a wheel torque of one or more wheels arranged on a driven wheel axle 11 of the vehicle based on the determined windup and a stiffness constant representing characteristics of the one or more shafts 11a,11b in-between the different points and using S7 the estimated wheel torque while operating the vehicle. The disclosure also relates to corresponding sensor arrangement 200 and computer program, and to a vehicle comprising the sensor arrangement.

    DEVICE FOR DETECTING SPEED OF A ROTATABLE ELEMENT, METHOD AND VEHICLE
    9.
    发明公开
    DEVICE FOR DETECTING SPEED OF A ROTATABLE ELEMENT, METHOD AND VEHICLE 审中-公开
    用于检测可旋转元件的速度的装置，方法和车辆

    公开(公告)号：EP3210030A1

    公开(公告)日：2017-08-30

    申请号：EP15852106.2

    申请日：2015-10-07

    申请人： Scania CV AB

    发明人： JOHANSSON, Björn ,  ZAMANI, Sebastian ,  WANSÖLIN, Peter

    IPC分类号： G01P3/44 ,  F02D41/02 ,  F02P7/00 ,  F02P7/067 ,  G01P3/66

    CPC分类号： G01M15/06 ,  F02B77/085 ,  F02D35/028 ,  F02D41/009 ,  F02P7/067 ,  G01D5/145 ,  G01D5/24461 ,  G01P3/481 ,  G01P3/487

    摘要： A device for detecting and monitoring crank shaft rotary speed and position in a four stroke engine, wherein a first and a second sensor are arranged to sense passage of reference marks on a rotatable element or elements. The first sensor is a high precision sensor which is arranged to sense passage of reference marks on a crank shaft flywheel of the engine, and the second sensor is a low speed sensor which is arranged to sense passage of reference marks on the crank shaft flywheel or reference marks or a wheel being associated with a cam shaft of the engine. The invention also concerns a method and a vehicle.

    摘要翻译： 一种用于在四冲程发动机中检测和监测曲轴转速和位置的装置，其中第一和第二传感器（3,4）被布置成感测可旋转元件或多个元件上的参考标记（9,9'）的通过， （1,1'）。 第一传感器（3）是高精度传感器，其布置成感测发动机的曲轴飞轮（1）上的参考标记（9）的通过，并且第二传感器（4）是布置成低速传感器 以检测曲柄轴飞轮（1）上的参考标记（9,9'）或与发动机的凸轮轴相关联的参考标记或轮（1'）的通过。 本发明还涉及一种方法和车辆。

    METHOD FOR TESTING TEMPERATURE SENSORS AND A TESTING DEVICE
    10.
    发明公开
    METHOD FOR TESTING TEMPERATURE SENSORS AND A TESTING DEVICE 有权
    测试温度传感器的方法和测试设备

    公开(公告)号：EP2729777A1

    公开(公告)日：2014-05-14

    申请号：EP12810609.3

    申请日：2012-07-06

    申请人： Scania CV AB

    发明人： STRÅÅT, Fredrik ,  ZAMANI, Sebastian

    IPC分类号： G01K15/00

    CPC分类号： G01K15/007

    摘要： The invention relates to a method for testing a temperature sensor which comprises a temperature-dependent resistor (R2). The method comprises the steps of - determining the resistance R
    t1 for R2, - applying to the resistor R2 a voltage pulse with a predetermined voltage amplitude U
    t and a predetermined duration T, - determining the resistance R
    t2 for R2 after the voltage pulse, - determining the absolute value of the resistance difference AR = | R
    t1 - R
    t2 |, - comparing AR with one or more threshold values (TR1, TR2,...), - generating on the basis of the result of the comparison a test signal which represents the result of the testing of the temperature sensor.

    摘要翻译： 本发明涉及一种用于测试温度传感器的方法，该温度传感器包括温度相关电阻器（R2）。 该方法包括以下步骤： - 确定R2的电阻R t1， - 向电阻器R2施加具有预定电压幅度U t和预定持续时间T的电压脉冲， - 确定电压脉冲之后R2的电阻R t2， - 确定电阻差值的绝对值AR = | R t1 - R t2 |， - 将AR与一个或多个阈值（TR1，TR2，...）进行比较， - 基于比较结果产生代表测试结果的测试信号 传感器。