DRIVING CONTROL APPARATUS OF VEHICLE AND DRIVING CONTROL METHOD THEREOF

• Format: Patent
• Language: English; Korean
• Published: 26.02.2008
• Subjects: BLASTING; CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TOTRANSPORTATION; COMBUSTION ENGINES; CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE ORDIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; CONTROLLING COMBUSTION ENGINES; ENGINEERING ELEMENTS AND UNITS; GEARING; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; HEATING; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS; LIGHTING; MECHANICAL ENGINEERING; PERFORMING OPERATIONS; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TOTHE CONTROL OF A PARTICULAR SUB-UNIT; TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION; TECHNICAL SUBJECTS COVERED BY FORMER USPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE; THERMAL INSULATION IN GENERAL; TRANSPORTING; VEHICLES IN GENERAL; WEAPONS

본 발명의 과제는 엔진 브레이크력 증대 제어 중에 있어서 연비를 향상시킨 가속 제어를 실현하는 것이다. ECU(20)는 엔진 브레이크력을 증대하는 제어가 행해지고, 또한 엔진(40)으로의 연료 공급이 차단된 주행 중에, 액셀러레이터 페달의 답입이 검출되었을 때에는 엔진(40)의 회전수를 엔진 브레이크력 증대 제어 시의 회전수보다도 낮은 회전수가 되도록 무단 변속기(30)의 변속비를 강판로 모드의 비용 시 변속비로부터, 이보다도 고단 기어측인 통상 모드의 비용 시 변속비로 변경하고, 무단 변속기(30)의 변속비가 통상 모드의 비용 시 변속비가 된 후, 엔진(40)으로 연료를 분사시키도록 연료 분사 제어부(41)를 제어한다. A vehicle drive control apparatus is configured to achieve acceleration control with improved mileage during increased engine braking control. During the time that control to increase engine braking force is being performed together with fuel being cut to the engine, the apparatus changes the change gear ratio of a continuously variable transmission (30), upon detecting depression of the accelerator pedal from a coasting gear ratio for a downhill driving mode to a higher coasting gear ratio for a normal driving mode such that the rotational engine speed of the engine (40) goes to a lower speed than the engine speed during engine braking increase control. Once the gear ratio of the continuously variable transmission has changed to the coasting gear ratio for normal driving mode, a fuel injection operation is performed so that fuel is injected into the engine. The control may consider additional information from a camera (15) or a GPS system (17).