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Method and system for collecting crankshaft position data

A technology of crankshaft position and crankshaft, which is applied to the arrangement of multiple different prime movers, power units, control devices, etc.

Active Publication Date: 2011-08-03
GM GLOBAL TECH OPERATIONS LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

While some of these errors are due to manufacturing variances, which can be measured while the engine is stationary, the effects of dynamic system forces interact with these manufacturing variances and cannot be ignored
In addition, additional deformation of the system occurs during acceleration mode, deceleration mode, or when driven by the combustion process

Method used

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  • Method and system for collecting crankshaft position data
  • Method and system for collecting crankshaft position data
  • Method and system for collecting crankshaft position data

Examples

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Embodiment Construction

[0012] Referring now to the drawings, in which the illustrations are for the purpose of illustrating certain exemplary embodiments only, and not for limitation, figure 1 A hybrid drive system 10 constructed in accordance with one embodiment of the present disclosure is depicted. The depicted hybrid drive system 10 includes engine 20 , crankshaft 25 , electric motor 30 , transmission assembly 40 , target wheel assembly 70 , crankshaft position sensor 60 , and output shaft 90 . The engine 20 and the electric motor 30 cooperate with a transmission assembly 40 . The transmission assembly 40 can receive power from the engine 20, the electric motor 30, the output shaft 90, or a subcombination thereof; the transmission assembly 40 can also transmit power to the engine 20, the electric motor 30, the output shaft 90, or a subcombination thereof. The disclosed embodiment of the present invention provides power from the electric motor 30 to the engine 20 through the transmission assembl...

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PUM

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Abstract

A method for collecting crankshaft position data includes rotating a crankshaft of an engine within a selected angular velocity range without any fuel being applied to the engine and measuring crankshaft position data.

Description

technical field [0001] The invention relates to a sensing technology for the crankshaft position of an internal combustion engine. Background technique [0002] Combustion in an internal combustion engine is a time-sensitive process in which the opening and closing of valves, fuel injection and spark ignition must all occur at precise times correlated to the strokes of the associated cylinders to meet emissions, performance and efficiency targets . Measuring crankshaft position is a known method of estimating cylinder position. One way to measure the position of the crankshaft is to link a target wheel to the crankshaft and detect the rotation of the target wheel. Such target wheels include certain features which allow detection of individual revolutions and percentages of the target wheel. [0003] As already mentioned, timing is very important for the combustion process. Small manufacturing variances and dynamic system conditions can introduce errors into crankshaft po...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02D45/00
CPCF02D41/009F02D41/0097F02D41/2451B60K6/48F02D41/2441F02D41/123B60W10/08Y02T10/6221B60W20/00Y02T10/62B60W50/04B60W20/15B60W2050/0005
Inventor X·D·T·阿瓦洛恩J·L·拉蒂D·S·马休斯R·C·小西蒙L·G·沃茨尼亚克W·R·考索恩R·S·维克曼
Owner GM GLOBAL TECH OPERATIONS LLC