| 摘要 |
An engine management system computes an estimation of a first signal representative of a engine parameter (e.g., engine cylinder pressure) based on a second signal dependent upon a measured engine operation parameter (e.g., engine speed) and applies a bias compensation to the estimation of the first signal to determine the first signal representative of the first engine parameter. The estimation of the first signal may be computed using frequency analysis. The fourier transform of the second signal may be calculated, the result divided by a transfer function, and then the inverse fourier transform of the result of the division taken in order to compute the estimation of the first signal. |
