According to the present invention, in a method for maintaining improvability with respect to idle noise of a vehicle, threshold values of the vehicle speed and the engine cooling water temperatures and threshold values of brake pedal effort conditions are individually applied by a controller (10) in an idle stop and go (ISG) ON state of an engine (3-1) when performing a D-stage neutral control operation for D-stage idle slip control of a transmission unit (3-2). The operational state is switched to an auto-hold mode by selectively applying the individual threshold values, thereby restricting the auto-hold control which is previously switched only when a driver releases the brake in the D-stage neutral control operation. As a result, even when the auto-hold control and D-stage neutral control modes are realized together, the vehicle (1) can prevent degradation of the product value related to D-stage idle noise, vibration, and harshness (NVH) attributes by maintaining the D-neutral control state in the D-neutral control mode.
본 발명의 차량의 아이들 소음 향상성 유지방법은 변속기(3-2)의 D단 아이들 슬립 제어를 위한 D단 중립제어시 엔진(3-1)의 ISG(Idle Stop & Go) ON상태에서 컨트롤러(10)에 의해 차속과 엔진냉각수온 조건의 임계값과 브레이크페달 답력 조건의 임계값이 각각 적용되고, 각 임계값(threshold)의 선택적용으로 오토홀드(Auto Hold)로 전환됨으로써 D단 중립제어상태에서 운전자의 브레이크 조작 해지만으로 전환되던 오토홀드의 제어 개입이 제한된다. 그 결과 차량(1)은 오토홀드제어와 D단 중립제어를 함께 구현하더라도 D단 중립제어시 기존 대비 D단 중립제어 상태를 지속함으로써 D단 아이들 NVH(Noise, Vibration, Harshness) 상품성 악화가 방지되는 특징을 갖는다.
Method for maintaining Idle Noise Improvability and Vehicle thereof
아이들 소음 향상성 유지방법 및 차량
2019-04-03
Patent
Electronic Resource
Korean
IPC: | F02D CONTROLLING COMBUSTION ENGINES , Steuern oder Regeln von Brennkraftmaschinen / 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 / F02N STARTING OF COMBUSTION ENGINES , Anlassen von Brennkraftmaschinen |
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