The present invention provides a method for controlling propulsion of a heavy-duty vehicle (100, 110, 120). According to one embodiment of the present invention, the heavy-duty vehicle (100, 110, 120) includes a driveshaft connected to a differential drive device arranged to evenly distribute torque between a left wheel and a right wheel of a driven axle, and the method comprises: a step (S1) of configuring a nominal shaft slip of the driveshaft in accordance with a desired longitudinal wheel force (F_x) to be generated by the driven axle, wherein a shaft slip (λ) represents the difference between a current vehicle velocity (v_x) and a vehicle velocity corresponding to the rotation speed (ω_0) of the driveshaft; a step of acquiring the rotation speed (ω_1) of the left wheel and the rotation speed (ω_2) of the right wheel as a function of a current shaft slip (λ) of the driven axle; a step (S3) of estimating a peak shaft slip value (λ_max) associated with an open differential peak longitudinal force (F_(x,max)) of the driven axle based on the current shaft slip (λ) and the corresponding acquired speeds (ω_1, ω_2) of the left and right wheels; and a step (S4) of controlling propulsion of the heavy-duty vehicle unit (100, 110, 120) by setting the current shaft slip (λ) of the driveshaft based on the configured nominal shaft slip (λ_0) adjusted in accordance with the estimated peak shaft slip value (λ_max).

    본 발명의 일 실시예는, 대형 차량(100, 110, 120)의 추진 제어 방법에 있어서, 대형 차량(100, 110, 120)은 종동 차축의 좌측 휠과 우측 휠 사이에 토크를 고르게 분배하도록 배열된 차동 구동 장치에 연결된 구동축을 포함하고, 상기 방법은, 종동 차축에 의해 생성될 원하는 종방향 휠 힘(Fx)에 따라 구동축의 공칭 축 슬립을 구성하는 단계(S1)로서, 축 슬립(λ)은 현재 차량 속도(vx)와 구동축의 회전 속도(ω0)에 대응하는 차량 속도 간의 차이를 나타내는 단계, 종동 차축의 현재 축 슬립(λ)의 함수로서, 좌측 휠의 회전 속도(ω1)및 우측 휠의 회전 속도(ω2)를 획득하는 단계, 현재 축 슬립(λ)과 좌측 및 우측 휠의 해당 획득 속도(ω1, ω2)를 기반으로, 종동 차축의 개방 차동 피크 종방향 힘(Fx,max)과 관련된 피크 축 슬립 값(λmax)을 추정하는 단계(S3), 및 추정된 피크 축 슬립 값(λmax)에 따라 조정된 구성된 공칭 축 슬립(λ0)을 기반으로 구동축의 현재 축 슬립(λ)을 설정하여 대형 차량 유닛(100, 110, 120)의 추진력을 제어하는 단계(S4)를 포함하는, 대형 차량(100, 110, 120)의 추진 제어 방법을 제공한다.


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    Title :

    A METHOD FOR CONTROLLING PROPULSION OF A HEAVY-DUTY VEHICLE


    Additional title:

    대형 차량의 추진력 제어 방법


    Contributors:

    Publication date :

    2023-01-03


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Korean


    Classification :

    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 / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / B60T Bremsanlagen für Fahrzeuge oder Teile davon , VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF / G06F ELECTRIC DIGITAL DATA PROCESSING , Elektrische digitale Datenverarbeitung



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