摘要 |
#CMT# #/CMT# The method involves feeding a desired value (r) and a prediction signal (v) of a predictor (24) into a controller (16) by a control unit (20). The prediction signal is provided with information about a modeled temporal characteristic of a hydraulic pressure (p) and about a deviation (g) of the modeled temporal characteristic from a real temporal characteristic (y) of the hydraulic pressure. The prediction signal is formed depending on a correcting variable (u) of the control unit and depending on information about the real temporal characteristic of the hydraulic pressure. #CMT# : #/CMT# An independent claim is also included for a regulation device for regulation of a hydraulic pressure in a high pressure accumulator of an accumulator injection system i.e. internal-combustion engine. #CMT#USE : #/CMT# Method for regulating a hydraulic pressure in a high pressure accumulator of an accumulator injection system i.e. internal-combustion engine (claimed), of a motor vehicle. #CMT#ADVANTAGE : #/CMT# The prediction signal is formed depending on the correcting variable of the control unit and depending on information about the real temporal characteristic of the hydraulic pressure, thus reducing the undesired effects of the upper and lower oscillations of the hydraulic pressure in order to improve the exhaust characteristic and the noise characteristic of the accumulator injection system. #CMT#DESCRIPTION OF DRAWINGS : #/CMT# The drawing shows a functional block diagram of an accumulator injection system. g : Deviation of modeled temporal characteristic p : Hydraulic pressure r : Desired value u : Correcting variable v : Prediction signal y : Real temporal characteristic 16 : Controller 20 : Control unit 24 : Predictor. |