Invention Grant
- Patent Title: Spark control systems and methods for engine torque estimation
- Patent Title (中): 用于发动机扭矩估计的火花控制系统和方法
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Application No.: US14497780Application Date: 2014-09-26
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Publication No.: US09545909B2Publication Date: 2017-01-17
- Inventor: Karl T. Kiebel , Stefan E. Lindner , Jeffrey M. Kaiser
- Applicant: GM Global Technology Operations LLC
- 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: B60W50/04
- IPC: B60W50/04 ; G07C5/08 ; B60W10/06 ; B60W10/08 ; F02P5/15 ; B60W20/00

Abstract:
A spark control module, for an engine speed and an engine load: for a first predetermined period, supplies spark to each cylinder of the engine at a predetermined spark timing set for the engine speed and the engine load. For a second period following the first predetermined period, the spark control module: provides spark to a first one of the cylinders at a first spark timing that is retarded relative to the predetermined spark timing; and supplies spark to all of the other cylinders of the engine at the predetermined spark timing. The storage module selectively stores in memory: a first torque output of the engine measured during the first predetermined period; and a second torque output of the engine measured during the second period.
Public/Granted literature
- US20160090101A1 SPARK CONTROL SYSTEMS AND METHODS FOR ENGINE TORQUE ESTIMATION Public/Granted day:2016-03-31
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