发明授权
- 专利标题: Method and device for detecting an angular position signal for an internal-combustion engine
- 专利标题(中): 用于检测内燃机的角位置信号的方法和装置
-
申请号: US10548549申请日: 2005-03-01
-
公开(公告)号: US07415351B2公开(公告)日: 2008-08-19
- 发明人: Franz Raichle , Wolfgang Fischer , Joerg Breuninger , Haris Hamedovic
- 申请人: Franz Raichle , Wolfgang Fischer , Joerg Breuninger , Haris Hamedovic
- 申请人地址: DE Stuttgart
- 专利权人: Robert Bosch GmbH
- 当前专利权人: Robert Bosch GmbH
- 当前专利权人地址: DE Stuttgart
- 代理商 Michael J. Striker
- 优先权: DE102004010441 20040301
- 国际申请: PCT/DE2005/050862 WO 20050301
- 主分类号: G01M15/05
- IPC分类号: G01M15/05
摘要:
The present invention relates to a method for detecting an angular position signal representing the rotary motion of a rotating part of an internal-combustion engine. The internal-combustion engine includes at least one combustion chamber. In addition, a speed sensor of the type mentioned initially is provided, the speed sensor outputting a rotation-measurement signal representing the rotary motion of a sensing wheel connected with the rotating part. At least one pressure sensor is also provided that outputs a pressure signal representing the pressure in a combustion chamber. The method according to the present invention has the following steps: Detect the pressure signal, detect the rotation-measurement signal, calculate a correction quantity that is a function, at the least, of the detected pressure signal and rotation-measurement signal, and determine the angular position signal by linking the detected rotation-measurement signal with the correction quantity. The core of the present invention is the identification and very good compensation of the sensing wheel error by performing a joint evaluation of the rotational-speed signal and the compression chamber pressure of one or more indicated cylinders.