EP 2058491 A2 20090513 - Control system for internal combustion engine
Title (en)
Control system for internal combustion engine
Title (de)
Steuersystem für einen Verbrennungsmotor
Title (fr)
Système de contrôle pour moteur à combustion interne
Publication
Application
Priority
JP 2007290196 A 20071107
Abstract (en)
In a system for controlling an internal combustion engine (12) mounted on a vehicle (10) and having an electric motor (44) that drives a throttle valve (24) installed in an intake pipe (22) of the engine and an accelerator (16) installed to be operable by the operator, it is configured to comprise a motor controller that conducts one of a full-step drive control for driving the motor at a full-step angle ¸f, a micro-step drive control for driving the motor at a micro-step angle ¸m which is made by dividing the full-step angle and a variable-step drive control for driving the motor at a step angle ¸v which changes in response to a control difference d between actual throttle opening and desired throttle opening, and controls the operation of the motor so as to decrease the difference (66, S24, S30, S34). With this, it becomes possible to improve response and control accuracy of the throttle valve and also enhances drivability.
IPC 8 full level
F02D 11/10 (2006.01)
CPC (source: EP)
F02D 11/105 (2013.01); F02D 11/106 (2013.01); F02D 35/0007 (2013.01); F02D 2011/102 (2013.01); F02D 2011/104 (2013.01); F02D 2200/0404 (2013.01); F02D 2200/602 (2013.01)
Citation (applicant)
JP H09317538 A 19971209 - AISIN SEIKI
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR
Designated extension state (EPC)
AL BA MK RS
DOCDB simple family (publication)
EP 2058491 A2 20090513; EP 2058491 A3 20120829; JP 2009115003 A 20090528
DOCDB simple family (application)
EP 08253562 A 20081030; JP 2007290196 A 20071107