Hydraulic control system of hybrid transmission

• Main Authors: GUO HOUBAO, FU SILONG, MEI ZIYUAN, ZHONG WEI, FU JUAN, ZHANG QIAN
• Format: Patent
• Language: Chinese; English
• Published: 11.05.2021
• Subjects: BLASTING; BRAKES; CLUTCHES; COUPLINGS FOR TRANSMITTING ROTATION; ENGINEERING ELEMENTS AND UNITS; GEARING; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; LIGHTING; MECHANICAL ENGINEERING; THERMAL INSULATION IN GENERAL; WEAPONS

The invention discloses a hydraulic control system of a hybrid transmission. The system comprises an electronic pump, a mechanical pump, a clutch control valve, a fine filter, an oil cooler, a controller and a compensation control valve, an oil outlet of the electronic pump is connected with the clutch control valve to form a first control loop, and an oil outlet of the first control loop is used for a pressure cavity of a clutch; an oil outlet of the mechanical pump, the fine filter and the oil cooler are sequentially connected to form a first cooling and lubricating loop; the oil outlet of the mechanical pump is connected with a hydraulic pipeline to form a second cooling and lubricating loop, and the second cooling and lubricating loop is used for being connected with a balance cavity of the clutch; and the oil outlet of the electronic pump is connected with the compensation control valve to form a second control loop, the second control loop is connected with the fine filter through the compensation contr