Invention Grant
- Patent Title: Engine torque estimation systems and methods
- Patent Title (中): 发动机转矩估计系统和方法
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Application No.: US12879251Application Date: 2010-09-10
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Publication No.: US08494742B2Publication Date: 2013-07-23
- Inventor: Prabjot Nanua
- Applicant: Prabjot Nanua
- Assignee: GM Global Technology Operations LLC
- Current Assignee: GM Global Technology Operations LLC
- Main IPC: G06F19/00
- IPC: G06F19/00 ; G06F7/70

Abstract:
An engine control system for a vehicle includes a coefficients determination module and a braking torque estimation module. The coefficients determination module determines first and second torque estimation coefficients that are set based on a braking torque versus air per cylinder (APC) line. The coefficients determination module determines third, fourth, and fifth torque estimation coefficients that are set based on a maximum braking torque (MBT) spark timing versus APC line. The braking torque estimation module estimates a braking torque of an engine based on APC, spark timing, and the first, second, third, fourth, and fifth torque estimation coefficients.
Public/Granted literature
- US20120065857A1 ENGINE TORQUE ESTIMATION SYSTEMS AND METHODS Public/Granted day:2012-03-15
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