| 发明名称 |
Ethanol content determination systems and methods |
| 摘要 |
A combustion control system for a vehicle comprises a position determination module and an ethanol determination module. The position determination module determines a crankshaft angle where a predetermined percentage of a fuel was combusted within a cylinder of an engine during an engine cycle based on one of pressure within the cylinder measured by a cylinder pressure sensor during the engine cycle and torque on a crankshaft measured by a torque sensor during the engine cycle. The ethanol determination module determines an ethanol content of the fuel based on the crankshaft angle. |
| 申请公布号 |
US8843295(B2) |
申请公布日期 |
2014.09.23 |
| 申请号 |
US200912472747 |
申请日期 |
2009.05.27 |
| 申请人 |
|
发明人 |
Santoso Halim G.;Brown Audley F. |
| 分类号 |
B60T7/12;G05D1/00;G06F7/00;G06F17/00;F02M7/00;F02D19/08;F02D35/02;F02D41/00;F02B37/00;F02B29/04;F02M25/07 |
主分类号 |
B60T7/12 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A combustion control system for a vehicle, comprising:
a position determination module that is configured to determine a crankshaft angle where a predetermined percentage of a fuel was combusted within a cylinder of an engine during an engine cycle based on pressure within said cylinder measured by a cylinder pressure sensor during said engine cycle; heat release module that is configured to determine a heat release profile for said fuel based on cylinder pressures measured by said cylinder pressure sensor during said engine cycle, wherein said position determination module is configured to determine said crankshaft angle based on said heat release profile; and an ethanol determination module that is configured to determine an ethanol content of said fuel based on said crankshaft angle. |
| 地址 |
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