Invention Grant
US08522607B2 Method and device for checking the adjustment of a plurality of actuators driven by a common drive in different mass flow channels
有权
用于检查在不同质量流量通道中由公共驱动器驱动的多个致动器的调节的方法和装置
- Patent Title: Method and device for checking the adjustment of a plurality of actuators driven by a common drive in different mass flow channels
- Patent Title (中): 用于检查在不同质量流量通道中由公共驱动器驱动的多个致动器的调节的方法和装置
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Application No.: US13121624Application Date: 2009-08-12
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Publication No.: US08522607B2Publication Date: 2013-09-03
- Inventor: Alex Grossmann , Soenke Mannal
- Applicant: Alex Grossmann , Soenke Mannal
- Applicant Address: DE Stuttgart
- Assignee: Robert Bosch GmbH
- Current Assignee: Robert Bosch GmbH
- Current Assignee Address: DE Stuttgart
- Agency: Kenyon & Kenyon LLP
- Priority: DE102008042513 20080930
- International Application: PCT/EP2009/060433 WO 20090812
- International Announcement: WO2010/037587 WO 20100408
- Main IPC: G01M15/05
- IPC: G01M15/05

Abstract:
In a method and a device for checking the adjustment of a plurality of actuators driven by a common drive in different mass flow channels of an internal combustion engine, the actuators are adjusted between a first limit stop and a second limit stop in the particular mass flow channel. The actuators are brought by their common drive to the first limit stop. A first value of a variable that is characteristic of a position of the common drive of the actuators is determined when the first limit stop is reached. The actuators are brought by their common drive to the second limit stop. A second value of the variable that is characteristic of the position of the common drive of the actuators is ascertained upon reaching the second limit stop. A difference is determined between the first value and the second value. The difference is compared in terms of absolute value to at least one predefined threshold value. An error in the adjustment of the actuators in the various mass flow channels is recognized when the absolute value of the difference deviates unacceptably from at least one predefined threshold value.
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