Title:
CONTROL DEVICE FOR ENGINE
Document Type and Number:
Japanese Patent JPH01193065
Kind Code:
A
Abstract:
PURPOSE:To suppress vibration in a car on acceleration by performing an output torque control in such a way as to delay a time which is obtained by subtracting a control delay time calculated based on a variation in engine speed from a time of a one-fourth calculated car vibration cycle. CONSTITUTION:A variation of an engine speed is intermittently calculated by a first calculating means A and, based on the calculated variation, a control delay time or controlling an engine torque is calculated by a third calculating means C. A torque control means D performs an output torque in such a way as to delay a time a which is obtained by subtracting a control delay time from a one-fourth car vibration cycle calculated by a second calculating means B so as to suppress the car vibration on acceleration. Thus, by shortening an mean time in calculating a variation in engine speed in a low speed range and using a control data delayed by a one cycle more to a torque control in the low speed range, it is possible to surely suppress the car vibration in the low speed range.
Inventors:
SHINYA YOSHIYUKI
TAWARA YOSHITAKA
TAWARA YOSHITAKA
Application Number:
JP1742088A
Publication Date:
August 03, 1989
Filing Date:
January 29, 1988
Export Citation:
Assignee:
MAZDA MOTOR
International Classes:
F02P5/15; F02D45/00; (IPC1-7): F02D45/00; F02P5/15
Attorney, Agent or Firm:
Yasunori Otsuka (1 person outside)
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