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热词
    • 3. 发明授权
    • Engine torque-detecting method and an apparatus therefor
    • 发动机转矩检测方法及其装置
    • US06332352B1
    • 2001-12-25
    • US08833767
    • 1997-04-09
    • Taketoshi Sano
    • Taketoshi Sano
    • G01M1500
    • G01M15/08G01L3/00G01L3/245
    • A method and apparatus for measuring the instantaneous torque of an engine by measuring the change in pressure in the combustion chamber at two crank angles. The crank angles are chosen to approximate the time when the change in pressure is the greatest and when the pressure is the greatest and the change in pressure is zero. These crank angles may be either determined by measuring the values or by approximating the crank angles at which the values will exist. In some instances, the torque is measured by summing the change in pressures during the time interval and in other methods the torque is measured by determining the pressure differences at the two crank angles.
    • 一种用于通过测量燃烧室中的两个曲柄角的压力变化来测量发动机的瞬时扭矩的方法和装置。 曲柄角被选择为近似压力变化最大时,压力最大,压力变化为零时的时间。 这些曲轴角度可以通过测量值或通过近似将存在这些值的曲柄角确定。 在一些情况下,通过将时间间隔内的压力变化相加来测量扭矩,而在其他方法中,通过确定两个曲柄角处的压力差来测量转矩。