Controlling apparatus for hybrid vehicle

• Main Authors: NAKAUNE KAN, UKAI ASAO, WAKASHIRO TERUO, IZUMIURA ATSUSHI, KUMAGAI KATSUHIRO, IWAMOTO TAKASHI
• Format: Patent
• Language: English; Korean
• Published: 25.06.2001
• Edition: 7
• 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; ENGINE PLANTS IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNALCOMBUSTION ENGINES; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES ORENGINES IN GENERAL; HEATING; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; LIGHTING; MACHINES OR ENGINES IN GENERAL; 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; STEAM ENGINES; TRANSPORTING; VEHICLES IN GENERAL; WEAPONS

PURPOSE: To prevent jerky movement from causing during travelling of a vehicle even when an air-fuel ratio of exhaust gas is changed from a lean side to a rich side rather than a theoretical air-fuel ratio in order to reproduce an exhaust purification device to reduce and purify oxide nitrogen in exhaust gas. CONSTITUTION: The decision if it is under a lean burn control is made at step S251. When the decision is 'NO', the decision if it is under a rich spike control is made at step S254. When the decision is 'YES', a high threshold value MASTH and a low threshold value MASTL of the negative pressure assist trigger of an intake pipe for lean burn control are obtained at step S252 and step S253. 배기 가스중의 질소 산화물을 환원 정화하는 배기 정화 장치를 재생하기위해서, 일시적으로 배기 가스의 공연비를 이론 공연비보다도 린측에서 리치측으로 변경한 경우라도, 차량의 주행 상태에 부조화감이 생기는 것을 방지한다. 스텝 S251에서 린번 제어의 실시중인지의 여부를 판정하여, 판정 결과가「NO」인 경우에는, 스텝 S254에서 리치 스파이크의 실시중인지를 판정한다. 판정 결과가「YES」인 경우에는, 스텝 S252 및 스텝 S253에서, 린번 제어시 용의 흡기관 부압 어시스트 트리거의 고임계값 MASTH 및 저임계값 MASTL을 구한다.