Dry dual clutch two-speed transmission and power assembly of electric vehicle

Abstract

The invention relates to a dry dual clutch two-speed transmission and power assembly of an electric vehicle. The dry dual clutch two-speed transmission of the electric vehicle comprises a box, an input shaft and an output shaft inside the box; the input shaft is provided with a left end plate, an intermediate plate and a right end plate in sequence from left to right; one end of the input shaft isarranged on the exterior of the box in a penetrating manner; two sides of the intermediate plate are sleeved with a first pressure plate and a second pressure plate respectively; the first pressure plate is connected with a high-speed gear; the second pressure plate is connected onto a low-speed gear; one end of the output shaft is arranged on the exterior of the box in a penetrating manner; theoutput shaft is sleeved with a driven gear set; and the high-speed gear and the low-speed gear are in engaged connection with the driven gear set. The dry dual clutch two-speed transmission and the power assembly have the advantages of being small in size, light in weight and low in cost, avoid the defect that damage is caused by the contact between a static release bearing and moving release lever of a dual clutch of the dual clutch transmission (DCT), extend the service life of a product, and reduce the failure rate of the product.

Description

technical field [0001] The invention belongs to the technical field of automobiles, and in particular relates to a dry double-clutch two-speed gearbox and a power assembly for an electric vehicle. Background technique [0002] At present, most of the electric vehicles we have seen use speed reducers, and do not use gearboxes like fuel vehicles. This is easy to lead people into a misunderstanding, thinking that electric vehicles do not use or need to use gearboxes. They even think that the use of gearboxes for electric vehicles is not only superfluous, but also a burden on electric vehicles. [0003] In fact, it is not the case. Objectively speaking, compared with the engine, the motor on the electric vehicle does have a wider and wider power efficiency area than the engine. There is no problem when the non-loaded low-speed electric bus does not use a gearbox, but the above-mentioned motor has a wide efficiency area. Not without limits. However, high-speed electric vehicles...

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