发明名称 |
PROCESSING POSITION-RELATED INPUT DATA FROM A ROTATIONAL MACHINE WHOSE ANGULAR SPEED IS VARIABLE |
摘要 |
A data processor and method for processing position-related input data from a rotational machine whose angular speed is variable and providing output data at an output data rate. The processor comprises a time-based over-sampler for over-sampling the input data at an over-sampling rate greater than the output data rate, and a down-sampler for extracting samples of over-sampled data from the over-sampler at the output data rate so as to provide the output data. The down-sampler is responsive to an angular timing signal related to an angular position of the machine for selecting the samples of over-sampled data to extract based on the angular position. Application to a rotational machine whose angular speed is variable, in particular to an internal combustion engine to control engine operating parameters as a function of cylinder pressure. |
申请公布号 |
EP2315927(A1) |
申请公布日期 |
2011.05.04 |
申请号 |
EP20080763466 |
申请日期 |
2008.07.03 |
申请人 |
FREESCALE SEMICONDUCTOR, INC. |
发明人 |
GARRARD, MIKE;EMERSON, GEOFF;ROBERTSON, ALISTAIR |
分类号 |
F02D41/00;F02D35/02 |
主分类号 |
F02D41/00 |
代理机构 |
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