Title:
【発明の名称】燃焼室圧力経過を評価する方法
Document Type and Number:
Japanese Patent JP2001517786
Kind Code:
A
Abstract:
A method for evaluating the combustion chamber pressure in an internal combustion engine is described, in which the output signal of at least one cylinder pressure sensor and one crankshaft angle sensor is performed by the control unit of the engine. By analysis of the course of combustion chamber pressure over the crankshaft angle, characteristic pressure courses are obtained for certain valve control times. From these characteristic pressure courses, a conclusion can be drawn as to the valve control times "outlet opens", "outlet closes", "inlet opens", and "inlet closes", referred to the crankshaft angle.
Inventors:
Klaus Walther
Holger Bellman
Holger Bellman
Application Number:
JP2000513123A
Publication Date:
October 09, 2001
Filing Date:
September 22, 1998
Export Citation:
Assignee:
ROBERT BOSCH GMBH
International Classes:
G01L23/24; F01L1/34; F02D35/02; F02D41/34; F02D45/00; G01L23/22; G01L23/30; G01M15/00; G01M15/04; F02D13/02; (IPC1-7): G01L23/24; F02D45/00; G01M15/00
Attorney, Agent or Firm:
Toshio Yano (4 outside)