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    • 15. 发明授权
    • Method and device for monitoring a pressure sensor
    • 用于监测压力传感器的方法和装置
    • US06234148B1
    • 2001-05-22
    • US09379220
    • 1999-08-23
    • Andreas HartkeChristian Birkner
    • Andreas HartkeChristian Birkner
    • F02M700
    • F02D41/3863F02D41/222F02D2041/1433F02D2041/223F02D2200/0602F02D2200/0604G01L27/007
    • A method for monitoring a pressure sensor, which determines a pressure in a pressure accumulator regulated by a pressure actuator, includes the steps of calculating an expected pressure value in the pressure accumulator for a given point in time based on a holding pressure preset by the pressure actuator and based on a detected rate of change in a mass balance of a medium contained in the pressure accumulator. A pressure value in the pressure accumulator is determined with the pressure sensor at the given point in time. The expected pressure value is compared with the determined pressure value and a malfunction in the pressure sensor is detected if the pressure values deviate from each other beyond a predetermined value. A device for monitoring a pressure sensor is also provided.
    • 一种用于监测压力传感器的方法,其确定由压力致动器调节的压力存储器中的压力,包括以下步骤:基于由压力预设的保持压力,计算给定时间点内的蓄压器中的预期压力值 并且基于检测到的包含在蓄压器中的介质的质量平衡的变化率。 在给定的时间点,用压力传感器确定蓄能器中的压力值。 将预期压力值与确定的压力值进行比较,并且如果压力值彼此偏离预定值,则检测压力传感器中的故障。 还提供了用于监测压力传感器的装置。