The invention relates to a tractor power split hybrid power system and a control method thereof. The tractor power split hybrid power system is characterized in that a power coupling speed change system and a hydraulic control system are arranged in a gearbox of the system, the power coupling speed change system comprises a power coupling subsystem and a multi-gear speed change subsystem, and thepower coupling subsystem comprises a mechanical transmission device and a power switching element; the tractor gearbox controller carries out coordination control on the power coupling subsystem and the multi-gear speed change subsystem according to tractor operation power requirements, and power distribution of double power sources of the tractor power dividing hybrid power system under differentworking modes and operation gears is achieved. Compared with the prior art, the tractor power split hybrid power system has multiple driving operation modes, energy conservation and consumption reduction can be achieved in the mode of charging through an external power source, shortening the idling time of the engine and adjusting the working point of the engine through the motor, and the electric vehicle has the advantages of being wide in rotating speed adjusting range, long in endurance time, compact in structure and high in adaptability.
本发明涉及一种拖拉机功率分流混合动力系统及其控制方法,该系统的变速箱中设有功率耦合变速系统和液压控制系统,功率耦合变速系统包括功率耦合子系统和多挡变速子系统,功率耦合子系统包括机械传动装置和动力切换元件;拖拉机变速箱控制器根据拖拉机作业动力需求对功率耦合子系统和多挡变速子系统进行协调控制,实现不同工作模式、作业挡位下拖拉机功率分流混合动力系统双动力源的功率分配。与现有技术相比,本发明具有多种行驶作业模式,并且可通过外接电源充电、减少发动机空转时间以及电机调节发动机工作点的方式实现节能降耗,具有转速调节范围广、续航时间长、结构紧凑以及适应性强的优点。
Tractor power split hybrid power system and control method thereof
一种拖拉机功率分流混合动力系统及其控制方法
2020-06-05
Patent
Elektronische Ressource
Chinesisch
IPC: | B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES |
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