In the present invention, provided is a braking heterogeneity reducing method capable of reducing a deceleration increasing phenomenon which occurs during regenerative braking cooperative control and a deceleration change (jerk) of a vehicle which occurs in a vehicle stop point. To this end, the present invention suggests a braking control method in regenerative braking cooperative control, which includes the steps of: i) checking an entry to a blending section in which regenerative braking torque is decelerated and frictional braking torque is increased; ii) determining a target reduction deceleration by a controller in the entry to the blending section; iii) reducing the braking torque of the vehicle according to the determined target reduction deceleration; and iv) returning the braking torque of the vehicle to braking torque requested by a driver when the vehicle stops.
본 발명에서는 회생제동 협조제어 중에 발생하는 감속도 증가 현상과 차량의 정차시점에 발생하는 차량의 감속도 변화(저크)를 저감할 수 있는 제동 이질감 저감 방법을 제공한다. 이를 위해, 본 발명에서는 i) 회생제동 토크가 감속하고 마찰제동 토크가 증가하는 블렌딩 구간에 진입하였는지 확인하는 단계, (ii) 상기 블렌딩 구간에 진입 시, 제어기에 의해 목표 저감 감속도를 결정하는 단계, (iii) 결정된 목표 저감 감속도에 따라 차량의 제동 토크를 감소시키는 단계, (iv) 차량 정지 시, 운전자 요구 제동토크로 차량의 제동 토크를 복귀시키는 단계를 포함하는 회생제동 협조제어 시 제동 제어 방법을 제시한다.
Method for controlling regenerative brake cooperation system
회생제동 협조제어 시 제동 제어 방법
2018-05-30
Patent
Electronic Resource
Korean
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / 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 |
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