发明授权
- 专利标题： Engine oil viscosity diagnostic systems and methods
- 专利标题（中）： 发动机油粘度诊断系统及方法
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申请号： US11684952申请日： 2007-03-12
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公开(公告)号： US07677086B2公开(公告)日： 2010-03-16
- 发明人: William C. Albertson , David R. Staley , Mike M. McDonald , Bryan K. Pryor
- 申请人： William C. Albertson , David R. Staley , Mike M. McDonald , Bryan K. Pryor
- 申请人地址： US MI Detroit
- 专利权人： GM Global Technology Operations, Inc.
- 当前专利权人： GM Global Technology Operations, Inc.
- 当前专利权人地址： US MI Detroit
- 主分类号： G01N11/06
- IPC分类号： G01N11/06
摘要：
An engine oil viscosity measurement system is provided. The system includes: a solenoid response module that determines an actual response time based on a position signal; an expected response module that determines an expected response time based on a system voltage and engine oil temperature; and a diagnostic module that diagnoses viscosity of the engine oil based on the actual response time and the expected response time.
公开/授权文献
- US20080223114A1 ENGINE OIL VISCOSITY DIAGNOSTIC SYSTEMS AND METHODS 公开/授权日：2008-09-18
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