Global Patent Index - EP 2199578 A1

EP 2199578 A1 20100623 - Torque control device and method for internal combustion engine

Title (en)

Torque control device and method for internal combustion engine

Title (de)

Drehmomentsteuerungsvorrichtung für Verbrennungsmotor

Title (fr)

Dispositif de contrôle de couple et procédé pour moteur à combustion interne

Publication

EP 2199578 A1 20100623 (EN)

Application

EP 09173598 A 20091021

Priority

JP 2008325416 A 20081222

Abstract (en)

A torque control device for an internal combustion engine, capable of properly suppressing the vibration of a vehicle by controlling torque output from the engine such that no large variation in the output torque is caused, when the vehicle has a torque converter having a lockup clutch. The torque control device calculates a basic value of a demanded torque for determining the output torque, according to detected operating conditions of the engine, and calculates a filtering characteristic for determining an average torque, and a filtering characteristic for determining a torque correction term, according to a detected degree of engagement of the lockup clutch. The torque control device calculates the demanded torque by filtering correction of the basic value using the filtering characteristics, and calculates a fuel injection amount based on the demanded torque. Torque corresponding to the fuel injection amount is output from the engine.

IPC 8 full level

F02D 41/02 (2006.01)

CPC (source: EP)

F02D 11/105 (2013.01); F02D 41/022 (2013.01); F02D 2041/1422 (2013.01); F02D 2041/1432 (2013.01); F02D 2250/21 (2013.01); F02D 2250/28 (2013.01); F02D 2400/12 (2013.01)

Citation (applicant)

Citation (search report)

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 MK MT NL NO PL PT RO SE SI SK SM TR

DOCDB simple family (publication)

EP 2199578 A1 20100623; EP 2199578 B1 20130508; JP 2010144686 A 20100701; JP 4738473 B2 20110803

DOCDB simple family (application)

EP 09173598 A 20091021; JP 2008325416 A 20081222