About the Identification of Higher Dimensional Look-Up Tables for Combustion Engines

作者：Sequenz Heiko^*; Keller Kerstin; Isermann Rolf

来源：Automatisierungstechnik, 2012, 60(6): 344-351.

DOI：10.1524/auto.2012.1000

• Look-up table structures
• engine control unit
• identification
• inversion

Different look-up table structures are regarded for the identification of the stationary behaviour of higher dimensional nonlinear processes. For the experimental determination of look-up tables the methods of least squares in explicit and recursive formulation and an approach with an intermediate model are described. A regularisation of look-up tables is introduced, which enables the identification of not excited grid points and allows a smoothing. The described methods are in particular suited for combustion engines with numerous inputs and outputs. As an application the identification and inversion of a look-up table structure for a torque model is shown.

• 出版日期2012-6