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Powertrain and vehicle having same

A technology of power transmission system and vehicle, applied in the field of power transmission system, can solve the problems of insufficient power and passing ability of the whole vehicle, low driving transmission efficiency, few driving modes, etc., so as to improve the passing ability and escape ability, and enrich the driving mode. , the direct effect of power transmission

Active Publication Date: 2020-08-07
BYD CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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

Examples

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Embodiment Construction

[0011] 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.

[0012] On a hybrid vehicle, the vehicle can be equipped with multiple systems, for example, a power transmission system 1000, which can be used to drive the front wheels or rear wheels of the vehicle. The following uses the power transmission system 1000 to drive the front wheels of the vehicle as an example Describe in detail.

[0013] A power transmission system 1000 according to an embodiment of the present invention will be described in detail below with reference to the accompanying drawings.

[0014] Such as Figure 5-Figure 8 As shown, the power transmission system 1000 may include: an engine 100, a transmission unit 200, a first motor generator unit 300...

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Abstract

The invention discloses a power transmission system and a vehicle with the same. The power transmission system includes a power source, a speed change unit, a first motor generator unit, a switching module, a second motor generator, a system power output part and a mode conversion device; the first motor generator unit comprises a first motor generator and a unit coupling part; the first motor generator is selectively in dynamic coupled connection with the speed change unit or the unit coupling part through the switching module; the second motor generator is directly or selectively in dynamiccoupled connection with an engine; the mode conversion device comprises an input part and an output part, the conversion device input part is in dynamic coupled connection with the speed change unit and the unit coupling part separately, the output part is connected with the system power output part, and the input part is selectively connected with the output part; when the input part is in dynamic coupled connection with the output part, the rotational speed of the input part is greater than or equal to that of the output part. In this way, the driving modes of the vehicle can be enriched, and the vehicle can adapt to different road conditions.

Description

technical field [0001] The present invention relates to the technical field of vehicles, in particular 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 realize the...

Claims

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Application Information

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