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Powertrain and vehicle having same

A power transmission system and vehicle technology, which is applied in the field of power transmission systems and vehicles with the power transmission system, can solve the problems of low efficiency, large size, and the inability of the second motor generator to drive the vehicle alone, and achieve high efficiency and power. Sexual effect

Active Publication Date: 2018-09-07
BYD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the second motor-generator in the electric vehicle power system cannot drive the vehicle alone, and because the second motor-generator is fixedly connected to the engine, the second motor-generator can only be a low-speed motor, and the efficiency of the low-speed motor is low, and the volume Big

Method used

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  • Powertrain and vehicle having same
  • Powertrain and vehicle having same
  • Powertrain and vehicle having same

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Embodiment Construction

[0022] 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.

[0023] In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Orientation indicated by rear, left, right, vertical, horizontal, top, bottom, inside, outside, clockwise, counterclockwise, etc. The positional relationship is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicati...

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Abstract

The invention discloses a power transmission system and a vehicle with the power transmission system. The power transmission system comprises an engine, a planet gear mechanism, a gear shifting element, multiple input shafts, a first electric power generator, a second electric power generator and an intermediate shaft. The planet gear mechanism comprises a planet carrier, a gear ring and a sun gear, and the engine is arranged in the manner that the engine can be connected with or disconnected from the planet carrier; the gear shifting element is arranged to be used for braking the gear ring; the first electric power generator is arranged to be in linkage with one of the multiple input shafts, the second electric power generator is arranged to be in linkage with another one of the multiple input shafts, and another one of the multiple input shafts is connected with the sun gear; and multiple intermediate shaft gears are arranged on the intermediate shaft, and each intermediate shaft gear is arranged to be in linkage with the corresponding input shaft. According to the power transmission system of the embodiment, the second electric power generator can be a high-speed motor and can independently drive the vehicle, and the power performance in a pure electric mode is more sufficient.

Description

technical field [0001] The invention relates to the field of vehicles, in particular to a power transmission system and a vehicle with the power transmission system. Background technique [0002] In the related technology known to the inventor, the electric vehicle power system includes an internal combustion engine, a dual clutch transmission, a set of speed change gear mechanism and two motors, wherein the crankshaft of the internal combustion engine is connected to the housing of the dual clutch transmission, and the dual clutch transmission The first clutch is connected with the first transmission gear of the transmission gear mechanism through the transmission shaft, the second transmission gear of the transmission gear mechanism and the power output gear of the transmission gear mechanism are all meshed with the first transmission gear of the transmission gear mechanism, and the second clutch is connected with the first transmission gear of the transmission gear mechani...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60K6/365B60K6/50B60K6/46B60K17/04B60K17/28
CPCY02T10/62
Inventor 倪超廖银生赵高明刘春梅
Owner BYD CO LTD
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