Invention Grant
- Patent Title: Method and device for determining one or more rotational speeds of a turbocharging device, in particular for an internal combustion engine
- Patent Title (中): 用于确定涡轮增压装置，特别是内燃机的一个或多个转速的方法和装置
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Application No.: US12782415Application Date: 2010-05-18
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Publication No.: US08504321B2Publication Date: 2013-08-06
- Inventor: Juergen Seidel , Alex Grossmann , Bernhard Opitz , Dirk Hofmann , Jochen Laubender , Uwe Kassner , Dirk Eichel , Klaus Lerchenmueller , Juergen Wendt
- Applicant: Juergen Seidel , Alex Grossmann , Bernhard Opitz , Dirk Hofmann , Jochen Laubender , Uwe Kassner , Dirk Eichel , Klaus Lerchenmueller , Juergen Wendt
- Applicant Address: DE Stuttgart
- Assignee: Robert Bosch GmbH
- Current Assignee: Robert Bosch GmbH
- Current Assignee Address: DE Stuttgart
- Agency: Kenyon & Kenyon LLP
- Priority: DE102009003289 20090520; DE102009028576 20090817; DE102010003347 20100326
- Main IPC: G01P3/44
- IPC: G01P3/44
Abstract:
A method is described for determining information about a rotational speed of a compressor, in particular a turbocharger, by providing a measuring signal, in particular a microwave measuring signal, which is directed at a compressor impeller of the compressor, so that the measuring signal is reflected on revolving blades of the compressor impeller, detecting the measuring signal reflected by one or more blades, and determining the information about the rotational speed as a function of the reflected measuring signal.
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