Transmission, driving system with transmission, and control method for driving system

Abstract

The invention provides a transmission, a driving system with the transmission, and a control method for the driving system. The transmission comprises a first shaft, a first clutch, a second clutch, a planetary gear mechanism and a second shaft which are coaxial, wherein the planetary gear mechanism comprises a sun gear, a gear ring, a planetary gear and a planetary carrier; the planetary gear can rotate on the planetary carrier and rotate around the sun gear and the gear ring; a driving disc of the first clutch, the first shaft and the gear ring are integrally arranged; the sun gear and a driven disc of the second clutch are integrally arranged; and the planetary carrier, a driven disc of the first clutch and the second shaft are integrally arranged. Through the arrangement, a multi-shaft design is avoided, the number of gears is reduced, the design, manufacturing and assembly of a transmission system are greatly simplified through a group of planetary gear mechanism and a few clutches, cost is reduced, the total weight of equipment is reduced, and the requirement on driving devices such as a motor and an engine is reduced.

Description

【Technical field】 [0001] Generally speaking, the present invention relates to the field of variable speed transmission; more specifically, the present invention relates to a speed change device, a driving system including such a speed change device and a control method thereof. 【Background technique】 [0002] Transmission (transmission) is often called "gearbox" in vehicles, especially automobiles, and is a device for mechanical power conversion. Usually it converts high-speed, low-torque mechanical power generated by a power source (internal combustion engine or electric motor) into more efficient low-speed, high-torque power to drive a mechanical device. A special transmission may also be used to increase the speed and reduce the torque. The transmission installed on the car usually has several different speed / torque conversion ratios, usually called "gears" or "gears", to meet the different requirements for the combination of speed and torque at different driving speeds....

AI Technical Summary

Problems solved by technology

[0005] A Chinese patent application with publication number CN101563252A discloses a hybrid drive device, which includes a power distribution mechanism and a speed change mechanism, wherein the power distribution mechanism is composed of a planetary gear mechanism; the speed change mechanism also uses two sets of planetary gear mechanisms, and uses Multiple clutches are added, resulting in a complex structure of the entire hybrid drive device, increasing design and manufacturing costs, taking up a large space, reducing the carrying capacity of the vehicle, increasing the overall weight of the vehicle, and increasing the requirements for power devices such as motors

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