The present disclosure relates to a hybrid electric vehicle and a contact point learning method thereof, in which an engagement oil pressure of an engine clutch is adjusted step by step to learn a contact point while a motor is driven, thereby shortening a contact point learning time and improving learning accuracy. The contact point learning method comprises the following steps: judging whether a preset contact point learning entry condition is met or not; controlling a first motor connected to one end of an engine clutch to be in a stopped state when the learning entry condition is satisfied; maintaining a second motor connected to the other end of the engine clutch at a preset speed; changing the engagement oil pressure of the engine clutch step by step; and learning a contact point of the engine clutch based on the torque change of the second motor.
本公开涉及一种混合动力电动车辆及其接触点学习方法,其中,在马达被驱动的同时,逐阶调节发动机离合器的接合油压,以学习接触点,从而缩短接触点学习时间并提高学习精度。接触点学习方法可以包括:判断是否满足预设的接触点学习进入条件;当满足学习进入条件时,控制连接到发动机离合器的一端的第一马达处于停止状态;将连接到发动机离合器的另一端的第二马达保持在预设速度;逐阶改变发动机离合器的接合油压;以及基于第二马达的扭矩变化来学习发动机离合器的接触点。
Hybrid electric vehicle and engine clutch contact point learning method thereof
混合动力电动车辆及其发动机离合器接触点学习方法
2024-08-27
Patent
Electronic Resource
Chinese
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 |
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