Title:
CONTROL DEVICE FOR TURBOCHARGED ENGINE
Document Type and Number:
Japanese Patent JPH01257636
Kind Code:
A
Abstract:
PURPOSE:To adjust throttle opening and control turbocharger pressure adjustment and a gear ratio depending upon each classified torque value and eliminate a torque fluctuation and the like by classifying a deviation torque between target torque and actual torque into three stages depending upon the extent of the required torque value. CONSTITUTION:The opening of a throttle valve (b) for adjusting an air in take amount supplied to an engine (a) is adjusted with a means (c). Also, the turbocharged pressure of an intake turbocharger (d) is adjusted with a means (e) and the gear ratio of a transmission (f) is controlled with a means (g). On the other hand, torque required for a power train corresponding to a target vehicle speed is operated on the basis of a deviation between a target vehicle speed and actual vehicle speed and the operation value thereof is set with a means (h) as target torque. Furthermore, the aforesaid means (c), (e) and (g) are selectively operated with a means (i) regarding a plurality of reference torque values, depending upon the deviation between the target torque and the actual torque, and feedback control is so made that the actual torque will converge to the target torque.
Inventors:
HARADA YASUHIRO
SEO NOBUHIDE
SEO NOBUHIDE
Application Number:
JP8620388A
Publication Date:
October 13, 1989
Filing Date:
April 06, 1988
Export Citation:
Assignee:
MAZDA MOTOR
International Classes:
B60K31/06; F02B33/00; F02D21/08; F02D23/00; F02D29/02; (IPC1-7): B60K31/06; F02B33/00; F02D21/08; F02D23/00; F02D29/02
Attorney, Agent or Firm:
Hiroshi Ohama
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