| 发明名称 |
PRESSURE MEASUREMENT SYSTEM FOR ENGINE |
| 摘要 |
A pressure measurement system for an engine is illustrated. The pressure measurement system includes a pressure sensor configured to generate a signal indicative of a pressure within a cylinder and an angle sensor configured to generate a signal indicative of an angular position of a crankshaft of the engine. The pressure measurement system further includes a controller coupled to the pressure sensor and the angle sensor. The controller is configured to determine a volume of the cylinder based on the signal indicative of the angular position of the crankshaft. The controller is configured to determine a first pressure offset during a compression stroke of the engine and a second pressure offset during an expansion stroke of the engine. The controller is further configured to determine a corrected pressure value by any one of the first pressure offset and the second pressure offset based on the angular position of the crankshaft. |
| 申请公布号 |
US2016252429(A1) |
申请公布日期 |
2016.09.01 |
| 申请号 |
US201615149260 |
申请日期 |
2016.05.09 |
| 申请人 |
Caterpillar Inc. |
发明人 |
Yeager Mary Louise;Lee Alasdair Owen;Siegle James David |
| 分类号 |
G01M15/05;G01M15/06;G01M15/08;F02D35/02 |
主分类号 |
G01M15/05 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A pressure measurement system for an engine, the pressure measurement system comprising:
a pressure sensor coupled to a cylinder of the engine, the pressure sensor configured to generate a signal indicative of a pressure within the cylinder; an angle sensor coupled to a crankshaft of the engine, the angle sensor configured to generate a signal indicative of an angular position of the crankshaft of the engine; a controller coupled to the pressure sensor and the angle sensor, the controller configured to:
receive the signal indicative of the pressure within the cylinder;receive the signal indicative of the angular position of the crankshaft:determine a volume of the cylinder based on the signal indicative of the angular position of the crankshaft;determine a first pressure offset during a compression stroke of the engine;determine a second pressure offset during an expansion stroke of the engine;determine a corrected pressure value by any one of the first pressure offset and the second pressure offset based on the angular position of the crankshaft. |
| 地址 |
Peoria IL US |
