Invention Grant
US08207840B2 Method and apparatus to estimate automotive alternator belt slip as a function of battery voltage
有权
估计汽车交流发电机皮带滑移作为电池电压的函数的方法和装置
- Patent Title: Method and apparatus to estimate automotive alternator belt slip as a function of battery voltage
- Patent Title (中): 估计汽车交流发电机皮带滑移作为电池电压的函数的方法和装置
-
Application No.: US12497742Application Date: 2009-07-06
-
Publication No.: US08207840B2Publication Date: 2012-06-26
- Inventor: Yilu Zhang , Satish Rajagopalan , Mutasim A. Salman
- Applicant: Yilu Zhang , Satish Rajagopalan , Mutasim A. Salman
- Applicant Address: US MI Detroit
- Assignee: GM Global Technology Operations LLC
- Current Assignee: GM Global Technology Operations LLC
- Current Assignee Address: US MI Detroit
- Main IPC: G08B21/00
- IPC: G08B21/00
Abstract:
An embodiment contemplates a method for determining belt slip in a vehicle. The vehicle includes an engine and an alternator rotatably coupled by an accessory drive belt. The accessory drive belt engaging a rotating member of the engine for driving a rotating member of the alternator. A battery voltage is measured. An estimated battery voltage is determined as a function of engine speed. The belt slip of the alternator is detected in response to a comparison of the estimated battery voltage and the measured battery voltage.
Public/Granted literature
- US20110000421A1 METHOD AND APPARATUS TO ESTIMATE AUTOMOTIVE ALTERNATOR BELT SLIP Public/Granted day:2011-01-06
Information query
