The present invention relates to a regenerative braking control method for a hybrid vehicle. The regenerative braking control method includes: a shift cancellation step of, when sensing an allowable amount of regenerative braking in a lift foot up (LFU) shifting condition, performing shifting in a regenerative braking prohibition state, while selectively controlling shifting cancellation depending on whether an actual shifting area is entered; a regenerative braking prohibition step of, when the actual shifting area is entered and shifting is performed, performing a control operation so as to maintain the regenerative braking prohibition state until the shifting is terminated; a regenerative braking reentry inclination application step of comparing the allowable amount of regenerative braking with a first comparison hydraulic braking amount when regenerative braking is reapplied in accordance with the termination of shifting, thereby causing the allowable amount of regenerative braking to be selectively controlled by one of a regenerative braking reentry inclination or a general regenerative braking inclination; and a regenerative braking reentry inclination disapplication step of, in regard to the application of the regenerative braking reentry inclination, comparing a difference between the allowable amount of regenerative braking and a regenerative braking execution amount with a second comparison hydraulic braking amount, and causing the regenerative braking reentry inclination to be selectively disapplied. Therefore, the present invention is capable of securing fuel efficiency by minimizing frequent shifting.
본 발명은 LFU(Lift Foot Up) 변속조건에서 회생제동 허용량이 감지되면, 회생제동 금지 상태에서 변속을 수행하되, 실변속 영역 진입 여부에 따라 선택적으로 변속 취소를 제어하는 변속 취소 단계, 상기 실변속 영역으로 진입하여 변속이 진행되면, 변속이 종료되는 시점까지 회생제동 금지 상태를 유지시키도록 제어하는 회생제동 금지 단계, 변속 종료에 따른 회생제동 재인가 시 상기 회생제동 허용량을 제1비교 유압 제동량과 비교하여, 회생제동 재진입 기울기 또는 일반 회생제동 기울기 중 어느 하나에 의해 선택적으로 제어되도록 하는 회생제동 재진입 기울기 적용 단계 및 상기 회생제동 재진입 기울기가 적용됨에 있어서, 상기 회생제동 허용량과, 회생제동 실행량의 차이를 제2비교 유압 제동량과 비교, 선택적으로 상기 회생제동 재진입 기울기 적용이 해제되도록 하는 회생제동 재진입 기울기 적용 해제 단계를 포함한다.
REGENERATIVE BRAKING CONTROL METHOD OF HYBRID VEHICLE
하이브리드 차량의 회생제동 제어방법
2022-12-06
Patent
Electronic Resource
Korean
IPC: | B60W CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION , Gemeinsame Steuerung oder Regelung von Fahrzeug-Unteraggregaten verschiedenen Typs oder verschiedener Funktion / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / B60T Bremsanlagen für Fahrzeuge oder Teile davon , VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF |