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METHOD FOR EVALUATING A POSSIBLE REDUCTION IN THE OIL LEVEL IN A HYDRAULIC ACTUATION SYSTEM, IN PARTICULAR A HYDRAULIC ACTUATION SYSTEM FOR A VEHICLE TRANSMISSION
METHOD FOR EVALUATING A POSSIBLE REDUCTION IN THE OIL LEVEL IN A HYDRAULIC ACTUATION SYSTEM, IN PARTICULAR A HYDRAULIC ACTUATION SYSTEM FOR A VEHICLE TRANSMISSION
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机译:评估液压传动系统中油位可能降低的方法,尤其是用于车辆变速箱的液压传动系统
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摘要
In order to verify a possible reduction of the oil level below a given alert level in a hydraulic actuation system, in particular a hydraulic actuation system for a vehicle transmission, comprising at least one hydraulic actuator (HA) and a hydraulic control circuit for controlling said at least one hydraulic actuator (HA), wherein the hydraulic control circuit comprises a pump (P), a motor (M) for driving the pump (P), an accumulator (A) arranged to be charged by the pump (P) and a pressure sensor (PS) for measuring the pressure in the circuit, a method is proposed comprising the steps of: a) charging the accumulator (A) by driving the pump (P) through the motor (M); b) measuring the pressure in the circuit by means of the pressure sensor (PS) while the accumulator (A) is being charged; and c) generating an error signal if the pressure value measured at step b) does not reach, within a given period of time from the beginning of step a), a given threshold pressure value (Tp).
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机译:为了在液压致动系统中,特别是在用于车辆变速器的液压致动系统中,检验油位是否可能低于给定警报水平,该液压致动系统包括至少一个液压致动器(HA)和用于控制所述液压致动器的液压控制回路。至少一个液压致动器(HA),其中,液压控制回路包括泵(P),用于驱动泵(P)的电动机(M),被设置为由泵(P)填充的蓄能器(A)以及提出了一种用于测量回路中压力的压力传感器(PS),该方法包括以下步骤:a)通过驱动泵(P)通过电机(M)给蓄能器(A)充电; b)在给蓄能器(A)充电时通过压力传感器(PS)测量回路中的压力; c)如果在步骤b)中测量的压力值在步骤a)开始的给定时间内未达到给定的阈值压力值(T p Sub>),则生成错误信号。
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