PROCESS AND DEVICE FOR REGULATING THE AIR FEED IN AN INTERNAL COMBUSTION ENGINE, IN PARTICULAR DURING IDLING AND COASTING

PCT No. PCT/DE88/00745 Sec. 371 Date Aug. 10, 1989 Sec. 102(e) Date Aug. 10, 1989 PCT Filed Nov. 23, 1988 PCT Pub. No. WO89/05905 PCT Pub. Date Jun. 29, 1989.A process and a device for air proportioning during idling or overrun mode of operation in an internal-combustion engine are provided. During...

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Bibliographic Details
Main Authors JANETZKE, HELMUT, KRAMPE, WOLFGANG, BRAUN, GUENTER
Format Patent
LanguageEnglish
German
Published 03.04.1991
Subjects
BLASTING
COMBUSTION ENGINES
CONTROLLING COMBUSTION ENGINES
HEATING
HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
LIGHTING
MECHANICAL ENGINEERING
WEAPONS
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Summary:PCT No. PCT/DE88/00745 Sec. 371 Date Aug. 10, 1989 Sec. 102(e) Date Aug. 10, 1989 PCT Filed Nov. 23, 1988 PCT Pub. No. WO89/05905 PCT Pub. Date Jun. 29, 1989.A process and a device for air proportioning during idling or overrun mode of operation in an internal-combustion engine are provided. During idling, the internal-combustion engine is regulated to a nominal speed by means of a PI controller (203, 204) and a preliminary air rate control value is determined as a function of temperature, gear position and air-conditioning state of the vehicle. At the same time, the actual air mass or air intake rate (60) is measured and the difference value of the actual air intake rate and the preliminary air-rate control value is stored in a store (304). During overrun, the air-mass throughput of the internal-combustion engine is regulated to this stored value. Furthermore, the control receives a series of auxiliary variables which make it easier to carry out the control as a function of the particular operating mode.
Bibliography:Application Number: EP19880909992