Transmission, power drive system and vehicle

A technology of power drive and transmission, applied in transmission, gear transmission, transmission control, etc., can solve the problems of large space occupation, drag torque, complex structure, etc., and achieve easy maintenance, reliable shifting, and simple structure. Effect

Active Publication Date: 2020-01-07
BYD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This patented technology allows vehicles with dual-planet rows and two syncizers to shift quickly without being repeatedly used or requiring more complicated structures than previous designs. It also makes it easier to maintain because there are no duplicated components needed instead of multiple ones that were previously necessary.

Problems solved by technology

This technical problem addressed by this patents relates to improving hybrid or extend range electric cars' performance while optimizing their overall design with multiple speed ratios. These systems require more efficient use of energy than traditional methods like combustion engines because it requires less fuel during operation compared to conventional gasoline (pet) type drivetrain designs that have high friction between parts. Additionally, current solutions involve adding extra elements such as plugs and bushings which can increase weight without increasing durability.

Method used

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  • Transmission, power drive system and vehicle

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Embodiment Construction

[0034] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0035] Refer below figure 1 A transmission 100 according to an embodiment of the present invention is described.

[0036] like figure 1 As shown, the transmission 100 according to the embodiment of the present invention includes: a first planetary gear mechanism, a second planetary gear mechanism, an input shaft 4 , an intermediate shaft 5 , a first synchronizer 7 and a second synchronizer 8 .

[0037] The torque of the vehicle can be input into the transmission 100 through the input shaft 4 , and in the transmission 100 the torque can be

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Abstract

The invention discloses a transmission, a power drive system and a vehicle. The transmission comprises a first planetary gear mechanism, a second planetary gear mechanism, an input shaft, an intermediate shaft, a first synchronizer and a second synchronizer, wherein a second ring gear of the second planetary gear mechanism is connected with the output end of the transmission, the input shaft is connected with a first sun wheel, the first gear ring is connected with the intermediate shaft, the intermediate shaft is connected with a second sun wheel, the first synchronizer fixes a first planet carrier to a housing of the transmission or connects the first planet carrier with the first sun wheel, and the second synchronizer fixes a second planet carrier to the housing of the transmission or connects the second planet carrier with the second sun wheel. According to the transmission, by arranging a double planetary-row double-synchronizer structure, rapid, smooth and reliable gear shiftingcan be achieved, the structure of the transmission is simple, and maintenance is convenient.

Description

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Claims

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Application Information

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Owner BYD CO LTD
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