METHOD AND DEVICE FOR COMPENSATING A NONLINEAR CHARACTERISTIC CHANGE OF THE AIR SYSTEM OF AN INTERNAL COMBUSTION ENGINE

• Main Authors: ENGEL GERHARD, KRAEMER WOLFGANG, BLEILE THOMAS, BIRK MANFRED, MEIER FRANK, RUPP PETER
• Format: Patent
• Language: English; Korean
• Published: 29.01.2002
• Edition: 7
• Subjects: BLASTING; COMBUSTION ENGINES; COMBUSTION ENGINES IN GENERAL; CONTROLLING COMBUSTION ENGINES; HEATING; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS; INTERNAL-COMBUSTION PISTON ENGINES; LIGHTING; MECHANICAL ENGINEERING; SUPPLYING COMBUSTION ENGINES IN GENERAL, WITH COMBUSTIBLEMIXTURES OR CONSTITUENTS THEREOF; WEAPONS

PURPOSE: A method and a device for compensating the change in the nonlinear property of an air system of an engine are provided to accomplish the compensation of the change in the nonlinear property of an air system of an engine in real time by considering the actual state of a control system. CONSTITUTION: A control variable(v) for a controller(ST) of an air system(LS) is induced from the deviation between a predetermined variable(w) and a real variable(y) of the air system by a single regulator(RG). The control variable is changed for the linear relation between the control variable and the real variable. A new control variable(u) is derived from a state variable(x) of the air system and the control variable supplied from the regulator. The nonlinear dependency of the new control variable to the control variable from the regulator is opposite to the nonlinear dependency of the real variable to the new control variable. New control variables are derived for a variable turbine geometry or for a bypass valve of turbo chargers. 공기 시스템의 비선형 작동에 작용하는, 엔진 작동 중에 발생하는 영향들이 보상될 수 있다. 또한 공기 시스템(LS)의 적어도 하나의 상태 변수(x) 및 레귤레이터(RG)에 의해 공급되는 제어 변수(v)로부터 하나의 새로운 제어 변수(u)가 도출되며, 레귤레이터(RG)로부터의 제어 변수(v)에 대한 상기 새로운 제어 변수의 비선형 종속성은 새로운 제어 변수(u)에 대한 실제 변수(y)의 비선형 종속성에 반대이다.