公开(公告)号：US09546611B2

公开(公告)日：2017-01-17

申请号：US14525297

申请日：2014-10-28

Applicant: GM Global Technology Operations LLC

Inventor： Chao F. Daniels ,  Xu Han

IPC: F02D35/00 ,  F02D35/02 ,  F02D37/02

CPC classification number: F02D35/028 ,  F02D35/023 ,  F02D35/025 ,  F02D37/02

Abstract: A parameter determination system includes first and second difference modules, a ratio module, and an M index module. The first difference module determines a first crankshaft angle of a combustion event of an engine, determines a second crankshaft angle of the combustion event of the engine, and determines a first difference between the first and second crankshaft angles. The second difference module determines a third crankshaft angle of the combustion event of the engine, determines a fourth crankshaft angle of the combustion event of the engine, and determines a second difference between the third and fourth crankshaft angles. The ratio module determines a ratio of the first difference to the second difference. The M index module determines an M index value for the Wiebe function based on the ratio and displays the M index value on a display.

Abstract translation: 参数确定系统包括第一和第二差分模块，比率模块和M索引模块。 第一差模块确定发动机的燃烧事件的第一曲轴角度，确定发动机的燃烧事件的第二曲轴角度，并且确定第一和第二曲轴角度之间的第一差。 第二差分模块确定发动机的燃烧事件的第三曲轴角度，确定发动机的燃烧事件的第四曲轴角度，并确定第三和第四曲轴角度之间的第二差。 比率模块确定第一差异与第二差异的比率。 M索引模块根据比例确定Wiebe函数的M索引值，并在显示屏上显示M索引值。

公开(公告)号：US11624803B2

公开(公告)日：2023-04-11

申请号：US17076170

申请日：2020-10-21

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Hejie Lin ,  Xu Han ,  Jing Li

IPC: G01S5/18 ,  G01S5/22 ,  B60R11/02 ,  G01S3/808

Abstract: A system includes first, second, and third microphones configured to receive sound waves from a source of the sound waves. The system includes a memory configured to store first, second, and third phase difference maps for the first and second microphones, the second and third microphones, and the third and first microphones. The system includes a processor configured to measure first, second, and third phase differences between the sound waves received from the source by the first and second microphones, the second and third microphones, and the third and first microphones; receive the first, second, and third phase difference maps from the memory; and identify a location of the source of the sound waves based on the first, second, and third phase differences and the first, second, and third phase difference maps for the first and second microphones, the second and third microphones, and the third and first microphones.

公开(公告)号：US20160115877A1

公开(公告)日：2016-04-28

申请号：US14525297

申请日：2014-10-28

Applicant: GM Global Technology Operations LLC

Inventor： CHAO F. DANIELS ,  Xu Han

IPC: F02D35/02 ,  F02P9/00 ,  F02D37/02

CPC classification number: F02D35/028 ,  F02D35/023 ,  F02D35/025 ,  F02D37/02

Abstract: A parameter determination system includes first and second difference modules, a ratio module, and an M index module. The first difference module determines a first crankshaft angle of a combustion event of an engine, determines a second crankshaft angle of the combustion event of the engine, and determines a first difference between the first and second crankshaft angles. The second difference module determines a third crankshaft angle of the combustion event of the engine, determines a fourth crankshaft angle of the combustion event of the engine, and determines a second difference between the third and fourth crankshaft angles. The ratio module determines a ratio of the first difference to the second difference. The M index module determines an M index value for the Wiebe function based on the ratio and displays the M index value on a display.

Abstract translation: 参数确定系统包括第一和第二差分模块，比率模块和M索引模块。 第一差模块确定发动机的燃烧事件的第一曲轴角度，确定发动机的燃烧事件的第二曲轴角度，并且确定第一和第二曲轴角度之间的第一差。 第二差分模块确定发动机的燃烧事件的第三曲轴角度，确定发动机的燃烧事件的第四曲轴角度，并确定第三和第四曲轴角度之间的第二差。 比率模块确定第一差异与第二差异的比率。 M索引模块根据比例确定Wiebe函数的M索引值，并在显示屏上显示M索引值。