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    A TORQUE MEASURING SYSTEM AND A METHOD THEREFORE
    3.
    发明公开
    A TORQUE MEASURING SYSTEM AND A METHOD THEREFORE 有权
    扭矩测量系统及其方法

    公开(公告)号：EP2751536A1

    公开(公告)日：2014-07-09

    申请号：EP11758124.9

    申请日：2011-09-01

    申请人： Volvo Lastvagnar AB

    发明人： BRÅTHE, Lars ,  JANSSON, Stefan

    IPC分类号： G01L3/14

    CPC分类号： G01M13/02 ,  G01L3/1428 ,  G01L5/00

    摘要： The invention relates to a torque measuring system in a vehicle transmission comprising a clutch assembly having a two part, rotatable torque transmitting member, the two parts of said member being angularly movable relative to one another against the compression of at least one damper spring pack (114), and an actuator (121) with a non rotatable cylinder for controlling the clutch. A device for radiating and receiving wave energy is arranged to irradiate said damper spring pack in order to receive a reflected modulation signal proportional to the current resonance frequency of said damper spring pack, and where said modulation signal is arranged to be converted to a torque value by a signal processing device, which torque value corresponds to the actual torque over said clutch.

    TORQUE CALIBRATION METHOD
    4.
    发明公开
    TORQUE CALIBRATION METHOD 审中-公开
    VERFAHRENFÜRDREHMOMENTKALIBRIERUNG

    公开(公告)号：EP2652471A1

    公开(公告)日：2013-10-23

    申请号：EP10860824.1

    申请日：2010-12-15

    申请人： Volvo Lastvagnar AB

    发明人： BRÅTHE, Lars ,  ERIKSSON, Anders

    IPC分类号： G01L5/13 ,  G01G19/08 ,  G01L3/24 ,  G01M15/04

    CPC分类号： G01M15/042 ,  G01G19/08 ,  G01G19/086 ,  G01L3/24 ,  G01L5/13

    摘要： Method for verifying an engine torque estimation, comprising the steps of estimating the engine torque based on the amount of fuel injected into the engine, where the engine torque is obtained from a fuel injection table, estimating a first vehicle weight value by a calculation based on acceleration of the vehicle and the estimated engine torque, estimating an auxiliary brake torque by using an auxiliary brake table, estimating a second vehicle weight value by a calculation based on the estimated auxiliary brake torque, and comparing the first vehicle weight value with the second vehicle weight value. The advantage of the invention is that it is possible to detect if an actual engine torque value deviates from the original engine torque value of a vehicle without measuring the engine torque with a separate torque sensor.

    摘要翻译： 提供了一种用于验证发动机扭矩估计的方法，并且包括基于从燃料喷射表获得发动机扭矩的发动机喷射的燃料量来估计发动机转矩，其中基于以下公式计算第一车辆重量值： 通过使用辅助制动台来估计辅助制动扭矩，通过基于所估计的辅助制动转矩的计算来估计第二车辆重量值，并将第一车辆重量值与第二车辆进行比较， 重量值。 该方法有助于检测实际的发动机扭矩值是否偏离车辆的原始发动机扭矩值，而不用单独的扭矩传感器测量发动机转矩。