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Vehicle drivetrain and vehicle having the same

A power transmission system and drive system technology, applied in the transmission field, can solve the problems of low integration, few driving modes, and low drive transmission efficiency, and achieve the effect of various working modes and increasing the number of gears

Active Publication Date: 2020-08-25
BYD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, in the relevant technologies known to the inventor, some hybrid electric vehicles have few driving modes and low drive transmission efficiency, which cannot meet the requirements of the vehicle to adapt to various road conditions, especially after the hybrid electric vehicle is fed (when the battery power is insufficient). Insufficient vehicle power and passing capacity
Moreover, in order to realize the parking power generation condition, it is necessary to additionally increase the transmission mechanism, which has low integration and low power generation efficiency

Method used

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  • Vehicle drivetrain and vehicle having the same
  • Vehicle drivetrain and vehicle having the same
  • Vehicle drivetrain and vehicle having the same

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Embodiment Construction

[0015] Embodiments of the invention are described in detail below, examples of which are illustrated in the accompanying drawings. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0016] On a hybrid vehicle, the vehicle can be equipped with multiple driving systems, for example, a power transmission system 1000, which can be used to drive the front wheels or rear wheels of the vehicle, and the following uses the power transmission system 1000 to drive the front wheels of the vehicle as Example for detailed description, of course, in some optional embodiments, the vehicle can also be combined with other drive systems to drive the rear wheels of the vehicle to rotate, so that the vehicle is a four-wheel drive vehicle, for example, the vehicle can also be combined with the electric drive system 700 to drive the vehicle's The rear wheels turn....

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Abstract

The invention discloses a power drive system of a vehicle and the vehicle with the power drive system. The power drive system comprises a power source, a first electric generator unit, a speed variation unit, a system power output part and a mode conversion device, wherein the mode conversion device comprises a main speed reducer driven gear and a planetary gear mechanism, the main speed reducer driven gear is in dynamic coupling with an output part of the speed variation unit, the planetary gear mechanism comprises a first element, a second element and a third element, the first element is fixedly connected with the main speed reducer driven gear, the second element is connected with the input end of the system power output part, the third element is selectively braked and is selectivelysynchronous with the first element, and when the third element is braked, the rotation speed of the main speed reducer driven gear is higher than that of the input end of the system power output part.By means of the power drive system, the number of gears of the power drive system can be increased, and meanwhile, the working modes of the power drive system are more diversified.

Description

technical field [0001] The invention belongs to the technical field of transmission, and in particular relates to a power transmission system of a vehicle and a vehicle with the power transmission system. Background technique [0002] With the continuous consumption of energy, the development and utilization of new energy vehicles has gradually become a trend. As one of the new energy vehicles, a hybrid vehicle is driven by an engine and / or an electric motor, and has multiple modes, which can improve transmission efficiency and fuel economy. [0003] However, in the related technologies known to the inventor, some hybrid electric vehicles have few drive modes and low drive transmission efficiency, which cannot meet the requirements of the vehicle to adapt to various road conditions, especially after the hybrid electric vehicle is powered (when the battery power is insufficient). The power and passing capacity of the whole vehicle are insufficient. Moreover, in order to rea...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60K6/24B60K6/26B60K6/36B60K6/365B60K6/42
CPCB60K6/24B60K6/26B60K6/36B60K6/365B60K6/42Y02T10/62
Inventor 廉玉波凌和平翟震徐友彬黄威
Owner BYD CO LTD
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