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[CN 202110858539.0] Wet clutch protection system and method based on hydro-mechanical continuously variable transmission
[CN 202110858539.0] Wet clutch protection system and method based on hydraulic-mechanical continuously variable transmission Title: Wet clutch protection system and method based on hydraulic-mechanical continuously variable transmission Application number: CN 202110858539.0 Applicant: Weichai Power Co., Ltd.; Weifang Weichai Power Technology Co., Ltd. Application Date: 2021-7-28 Patent Type: Invention Application This application relates to the provision of a wet clutch protection system and method based on hydraulic-mechanical continuously variable transmission, it is used to solve the problem in the related art that when the equipment encounters a relatively harsh working environment, the sliding grinding seriously affects the safe driving of the equipment. In the present application, the clutch is cooled and lubricated in the shifting state and the engaged state of the clutch, but it is not cooled and lubricated when the clutch is in the disengaged state, thereby ensuring that the cooling and lubrication are performed on demand, that is, only during the shifting process and in gear. It works in the state and effectively improves the efficiency of the cooling oil circuit. In addition, in the embodiment of the present application, in the shifting state, the controller can analyze the friction work, and when the friction work of the clutch exceeds a corresponding threshold, the clutch protection measure is activated, so that when the heat generated by sliding wear far exceeds the cooling lubrication system, the wear failure or ablation of the clutch can be avoided as much as possible, and the safety performance of the equipment is improved.
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