Two-gear AMT gearbox without power failure

Abstract

The invention provides a two-gear AMT gearbox without power failure. The two-gear AMT gearbox without power failure comprises an input shaft, a high-gear driving gear and a low-gear driving gear, wherein the input shaft is indirectly sleeved with the high-gear driving gear and the low-gear driving gear in a connected manner and can rotate along with the input shaft. The two-gear AMT gearbox without power failure further comprises a movable bonding sleeve, an output shaft, a high-gear driven gear, a multi-plate friction clutch, a fixed bonding sleeve, a fixed gear sleeve, a low-gear driven gearand a main reducing gear, wherein the output shaft is sequentially sleeved with the high-gear driven gear, the multi-plate friction clutch, the fixed bonding sleeve, the fixed gear sleeve, the low-gear driven gear and the main reducing gear in a connected manner, the high-gear driven gear, the fixed gear sleeve and the low-gear driven gear are all connected with the output shaft in a spaced and sleeved manner, the fixed bonding sleeve and the main reducing gear are both fixedly connected with the output shaft, the output shaft is fixedly connected with an inner ring of a one-way clutch, a low-gear driven gear is fixedly connected to an outer ring of the one-way clutch, and the movable bonding sleeve can move along with the output shaft to be connected with the multi-plate friction clutchand the fixed gear sleeve in the manner of rotating together, or be connected to the outer side of the fixed bonding sleeve in the manner of rotating together, or be connected with the outer side of the fixed bonding sleeve and the outer side of the fixed gear sleeve in the manner of rotating together. The two-gear AMT gearbox without power failure can implement switching between a high gear and alow gear without power failure, and implement low-speed reverse gear, and the cost is low.

Description

technical field [0001] The invention relates to the technical field of hybrid or pure electric vehicles, in particular to a two-speed AMT transmission without power interruption. Background technique [0002] If a pure electric vehicle wants to take into account the low-speed climbing ability and high-speed driving ability of the vehicle, improve the operating efficiency of the motor and reduce the volume and cost, it can be realized by adding a two-speed gearbox to the motor. In the prior art, some use continuously variable transmission CVT or dual clutch transmission, which has disadvantages such as high cost and low transmission efficiency, which affects its popularization and application on electric vehicles. If the traditional AMT gearbox is selected, the power interruption problem exists in the traditional AMT gearbox due to the action process of shifting gears, which affects the driving comfort requirements of the vehicle. For the problems referred to above, it can b...

AI Technical Summary

Problems solved by technology

In the prior art, some use continuously variable transmission CVT or dual clutch transmission, which has disadvantages such as high cost and low transmission efficiency, which affects its popularization and application on electric vehicles

If the traditional AMT gearbox is selected, due to the action process of shifting, the traditional AMT gearbox has the problem of power interruption, which affects the driving comfort requirements of the vehicle.

In view of the above problems, it can be solved by adopting a non-power interruption gearbox at present. However, some of the existing non-power interruption two-speed gearboxes have complicated shift control, and some have high-speed reverse gears, which make the speed of the vehicle faster when reversed.

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