A method for controlling friction compensation torque of an electric power steering system comprises the steps of: performing variable band-pass filtering with respect to differentiated input steering torque; integrating the variable band-pass filtered steering torque; performing amplification with respect to the integrated steering torque by using a basic amplification gain, so as to generate basic friction torque; calculating phase control friction torque by applying a phase lead to the basic friction torque obtained by the amplification; and performing low-pass filtering with respect to the phase control friction torque by using a cutoff frequency for each vehicle speed.
Procédé pour commander un couple de compensation de frottement d'un système de direction assistée électrique, lequel procédé comprend les étapes consistant à : effectuer un filtrage passe-bande variable à l'égard d'un couple de direction d'entrée différencié ; intégrer le couple de direction ayant subi un filtrage passe-bande variable ; réaliser une amplification à l'égard du couple de direction intégré à l'aide d'un gain d'amplification de base, de manière à générer un couple de frottement de base ; calculer un couple de frottement de commande de phase par application d'une avance de phase au couple de frottement de base obtenu par l'amplification ; et effectuer un filtrage passe-bas à l'égard du couple de frottement de commande de phase à l'aide d'une fréquence de coupure pour chaque vitesse de véhicule.
전동 파워 스티어링 시스템의 마찰 보상 토크 제어 방법은 미분된 입력 조향 토크에 대해 가변 대역통과 필터링을 수행하는 단계, 상기 가변 대역통과 필터링된 조향 토크를 적분하는 단계, 상기 적분된 조향 토크에 대해 기본 증폭 게인을 이용하여 증폭을 수행하여 기본 마찰 토크를 생성하는 단계, 상기 증폭에 의해 얻어진 기본 마찰 토크에 위상앞섬을 적용하여 위상 제어 마찰 토크를 산출하는 단계, 그리고 상기 위상 제어 마찰 토크에 대해 차속별 차단주파수를 이용하여 저역통과 필터링을 수행하는 단계를 포함한다.
ELECTRIC POWER STEERING SYSTEM
SYSTÈME DE DIRECTION ASSISTÉE ÉLECTRIQUE
전동 파워 스티어링 시스템
2021-07-15
Patent
Elektronische Ressource
Koreanisch
IPC: | B62D MOTOR VEHICLES , Motorfahrzeuge |
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