HYBRID VEHICLE CONTROL DEVICE

• Main Authors: IMAMURA TATSUYA, KUMAZAKI KENTA, TABATA ATSUSHI, SHIIBA KAZUYUKI, MATSUBARA TOORU
• Format: Patent
• Language: English; Korean
• Published: 16.08.2016
• Subjects: ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS INVEHICLES; ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OFTRANSMISSIONS IN VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GASEXHAUST OR FUEL SUPPLY OF PROPULSION UNITS, IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; BLASTING; COMBUSTION ENGINES; CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE ORDIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; CONTROLLING COMBUSTION ENGINES; ELECTRIC EQUIPMENT OR PROPULSION OF ELECTRICALLY-PROPELLEDVEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES, IN GENERAL; HEATING; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; LIGHTING; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MECHANICAL ENGINEERING; PERFORMING OPERATIONS; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TOTHE CONTROL OF A PARTICULAR SUB-UNIT; TRANSPORTING; VEHICLES IN GENERAL; WEAPONS

하이브리드 차량의 제어 장치(60, 70, 71)는, 실제로 변속 수단에 의한 변속이 실행될 때까지의 소정 기간에 있어서, 내연 기관(200)의 공연비를 판정하는 공연비 판정 수단과, 소정 기간에 있어서의 내연 기관의 공연비가 린인 경우에, 내연 기관의 토크 다운 가능량이 커지도록, 내연 기관 및 전동기 중 적어도 일방을 제어하는 제어 수단을 구비한다. 이에 따라, 변속 시에 발생할 수 있는 토크 쇼크나 마찰재의 내구성 악화 등의 문제점을 적합하게 회피할 수 있다. A control apparatus for a hybrid vehicle is provided with: an air-fuel ratio determinator configured to determine an air-fuel ratio of an internal combustion engine in a predetermined period until speed change by a transmission is actually performed; and a controller configured to control at least one of the internal combustion engine and an electric motor in such a manner that a possible amount of torque down of the internal combustion engine is increased if the air-fuel ratio of the internal combustion engine is lean in the predetermined period. By this, it is possible to avoid a detrimental effect, such as a torque shock, deterioration of durability of a friction material, and the like, which can occur in the speed change.