Hybrid transmission hydraulic system and control method thereof

The invention relates to the technical field of hybrid transmissions, in particular to a hybrid transmission hydraulic system and a control method thereof. The hybrid transmission hydraulic system comprises a mechanical pump, an electronic pump, a hydraulic oil tank and a driving motor. When the mechanical pump is normal, the hydraulic oil tank is connected with the driving motor through the mechanical pump, and when the mechanical pump fails, the hydraulic oil tank is connected with the driving motor through the electronic pump. The embodiment of the invention provides a hybrid transmission hydraulic system and a control method thereof to solve the problems that in the prior art, a hybrid transmission hydraulic system is large in number of elements and complex in control. 本申请涉及混合动力变速箱技术领域，特别涉及一种混动变速器液压系统及其控制方法。所述混动变速器液压系统包括机械泵、电子泵、液压油箱和驱动电机。其中，当机械泵正常时，所述液压油箱与驱动电机通过机械泵相连，当机械泵失效时，所述液压油箱与驱动电机通过电子泵相连。本申请实施例提供一种混动变速器液压系统及其控制方法，以解决相关技术中混动变速器液压系统元件较多、控制复杂的问题。