公开(公告)号：US07669456B2

公开(公告)日：2010-03-02

申请号：US11673162

申请日：2007-02-09

申请人： Matthias Klenk ,  Thomas Walker

发明人： Matthias Klenk ,  Thomas Walker

IPC分类号： G01L27/00

CPC分类号： G01L23/225

摘要： In a method for determining the reset time in a pressure sensor that detects the pressure in a combustion chamber of an internal combustion engine and emits a corresponding pressure signal, with the pressure curve in the combustion chamber having at least one high-pressure region the reset time is determined as a function of at least one pressure value detected in the high-pressure phase, so that it is possible, within the sensor, to determine a favorable time at which to reset the drift, based on the pressure range. In the method, information about the auxiliary rotation speed is determined based on the pressure curve of the compression phase and is then used to generate the reset time, the method entails only slight circuitry-related expense and can therefore be implemented even in an ASIC without complex signal processing, and the method functions in almost all known engine operating states.

摘要翻译： 在用于确定检测内燃机的燃烧室中的压力并发射相应的压力信号的压力传感器中的复位时间的方法中，在燃烧室中的压力曲线具有至少一个高压区域时，复位 时间被确定为在高压相中检测到的至少一个压力值的函数，使得在传感器内可以基于压力范围确定复位漂移的有利时间。 在该方法中，关于辅助转速的信息基于压缩相位的压力曲线来确定，然后用于产生复位时间，该方法只需要轻微的电路相关费用，因此即使在ASIC中也可以实现 复杂的信号处理，并且该方法几乎在所有已知的发动机运行状态下起作用。