Title:
【発明の名称】エンジンの出力制御装置
Document Type and Number:
Japanese Patent JP2550773
Kind Code:
B2
Abstract:
PURPOSE:To prevent thermal degradation of a catalyst by judging a dangerous catalyst temperature region from an enriching judging intake air amount corresponding to the number of fuel cut cylinders and rotational frequency of an engine to correct the number of fuel cut cylinder for preventing the catalyst from exothermic reaction when enriching judging information is inputted. CONSTITUTION:An output regulating amount calculating means calculates a necessary torque decrement from a torque deviation of presumed torque of a presumed torque calculating means from desired engine torque of a desired engine torque calculating means. A means for calculating the number of fuel cut cylinders calculates the number of fuel cut cylinders corresponding to the necessary torque decrement. An enriching judging means judges a dangerous catalyst temperature region from an enriching judging intake air amount corresponding to the number of fuel cylinders and rotational frequency of an engine. A means for correcting the number of fuel cut cylinder corrects the number of fuel cut cylinders when enriching judging information is inputted so that the catalyst can be prevented from exothermic reaction. Thus, an engine output controlling means can control a fuel injection controlling means according to the corrected number of fuel cut cylinders so that the catalyst temperature is controlled not to enter the dangerous region.
Inventors:
TOGAI KAZUHIDE
UEDA KATSUNORI
UEDA KATSUNORI
Application Number:
JP29818090A
Publication Date:
November 06, 1996
Filing Date:
November 02, 1990
Export Citation:
Assignee:
MITSUBISHI MOTORS CORP
International Classes:
F02D45/00; F01N3/20; F02D17/02; F02D29/02; F02D41/02; F02D41/04; (IPC1-7): F02D17/02; F01N3/20; F02D29/02; F02D41/02
Domestic Patent References:
| JP2233855A | ||||
| JP4166625A |
Attorney, Agent or Firm:
Kabayama Toru