Title:
【発明の名称】失火を識別する方法及び装置
Document Type and Number:
Japanese Patent JPH04501157
Kind Code:
A
Abstract:
PCT No. PCT/DE89/00628 Sec. 371 Date Apr. 15, 1991 Sec. 102(e) Date Apr. 15, 1991 PCT Filed Oct. 4, 1989 PCT Pub. No. WO90/04093 PCT Pub. Date Apr. 19, 1990.An arrangement for recognizing misfires in an internal combustion engine has a sensor (15) for measuring the exhaust-gas pressure and a means (16, 17, 18) for recording the measurement values of the sensor for each clock pulse. Each exhaust-gas pressure measurement value is compared to a corresponding expected value and an occurrence signal is emitted when the two values differ from one another by more than a specified difference. A means (21) for recognizing and treating faults determines the rate of occurrence of the occurrence signals and emits a fault signal when the rate of occurrence determined exceeds a threshold value. A warning lamp lights up on receipt of the fault signal. This arrangement for recognizing misfires has a simple construction because the ignition in all the cylinders of an internal combustion engine (11) can be simultaneously monitored by means of a single sensor. In addition, it is possible to determine faults in the exhaust-gas line (12) as well as misfires.
Inventors:
Jos Heinz Guyunter
Coogler Karl Heinz
Cane Hans
Coogler Karl Heinz
Cane Hans
Application Number:
JP51019489A
Publication Date:
February 27, 1992
Filing Date:
October 04, 1989
Export Citation:
Assignee:
Robert Bosch Gezelshaft Mitt Beschlenktel Haftung
International Classes:
F02D43/00; F02D45/00; F02P11/06; G01L9/00; F02P17/12; G01L23/24; G01M15/10; G01M15/11; (IPC1-7): F02D45/00; F02P17/00; G01L9/00
Attorney, Agent or Firm:
Taku Kato