Pressure control method of main oil way of automatic transmission

• Main Authors: ZOU MIANYI, LI BAOLU, WANG ZHENSUO, SHEN HUI, YANG QING
• Format: Patent
• Language: Chinese; English
• Published: 15.02.2017
• Subjects: BLASTING; 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 provides a pressure control method of a main oil way of an automatic transmission. In the gear shifting process, the main oil pressure is set according to a target gear. In a steady gear, the basic main oil pressure changes along with changing of the input torque of the automatic transmission, the smaller the torque is, the lower the main oil pressure is, meanwhile, the sliding-grinding self-learning value of a clutch is considered, and the efficiency of an oil pump is further improved. Thus, the proper main oil pressure can be provided according to various different working condition needs, normal work of the automatic transmission is guaranteed, and meanwhile the efficiency of the automatic transmission is improved as much as possible. 本发明提供了种自动变速箱的主油路压力控制方法中，在换挡过程中，根据目标档位设定主油压。而在稳态档位下，基础主油压随着自动变速箱的输入扭矩的变化而变化，扭矩越小，主油压越低，同时还考虑到离合器滑磨的自学习值，进步提高了油泵的效率。从而可以根据各种不同的工况需求提供适当的主油压，在保证自动变速箱正常工作的同时，尽可能的提高所述自动变速箱的效率。