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Hybrid powertrain for vehicle

A powertrain and vehicle technology, applied in hybrid vehicles, power plants, vehicle components, etc., can solve problems such as difficulty in achieving optimum motor performance, increased manufacturing costs, and complex power transmission paths

Pending Publication Date: 2021-09-14
HYUNDAI MOTOR CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because such a hybrid powertrain is provided with an engine clutch, the manufacturing cost increases due to the arrangement of the engine clutch
Also, when the engine clutch is engaged, the speed of the engine and the speed of the motor are limited to the same level
In addition, because the shift map is set according to the optimum operating point of the engine, but the main operating range of the motor is concentrated in the low speed range, it is difficult to achieve the optimum performance of the motor
In addition, since the motor is located at the input side of the transmission, the power transmission path between the drive wheels and the motor becomes complicated when performing regenerative braking, thereby reducing the efficiency of regenerative braking

Method used

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  • Hybrid powertrain for vehicle
  • Hybrid powertrain for vehicle
  • Hybrid powertrain for vehicle

Examples

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Embodiment Construction

[0027] Reference will now be made in detail to various embodiments of the invention, examples of which are illustrated in the accompanying drawings and described below. While the invention will be described in conjunction with exemplary embodiments thereof, it will be understood that present description is not intended to limit the invention to those exemplary embodiments. On the other hand, the invention is intended to cover not only the exemplary embodiments of the invention but also various alternatives, modifications, equivalents and other embodiments which may be included within the spirit and scope of the invention as defined by the appended claims .

[0028] Reference will now be made in detail to the exemplary embodiments of the invention, examples of which are illustrated in the accompanying drawings. Wherever possible, the same reference numbers will be used throughout the drawings to refer to the same or like parts.

[0029] Hereinafter, exemplary embodiments of t...

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Abstract

The invention relates to a hybrid powertrain for a vehicle, which may include a first input shaft connected to an engine, a second input shaft connected to the engine and coaxially mounted with the first input shaft, a motor input shaft coaxially mounted with the first input shaft and connected to a motor, first and second output shafts mounted in parallel to the first input shaft and the second input shaft, a variable drive gear provided at the motor input shaft to transmit power from the motor input shaft to the first output shaft, a complex synchronizer to couple and separate the first input shaft and the motor input shaft and to couple and separate the variable drive gear and the motor input shaft, and a plurality of external gear pairs configured to respectively define different gear ratios.

Description

technical field [0001] The invention relates to the layout of a hybrid powertrain suitable for a vehicle. Background technique [0002] A transmission mounted electrical device (TMED) type hybrid powertrain is a hybrid powertrain in which the motor is mounted at the transmission instead of the engine. [0003] In the conventional TMED type hybrid powertrain constructed as described above, a structure in which an engine is connected to a motor via an engine clutch is widely used. Since such a hybrid powertrain is provided with an engine clutch, the manufacturing costs increase due to the arrangement of the engine clutch. Furthermore, when the engine clutch is engaged, the speed of the engine and the speed of the motor are limited to the same level. In addition, because the shift map is set according to the optimum operating point of the engine, but the main operating range of the motor is concentrated in the low speed range, it is difficult to achieve the optimum performanc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60K6/365B60K6/38B60K6/24B60K6/26B60K6/547
CPCB60K6/365B60K6/38B60K6/24B60K6/26B60K6/547B60K6/387B60K6/48B60K2006/4808B60K2006/4825B60K2006/381B60K2006/4841Y02T10/62B60K6/54B60K6/485F16H3/72F16H3/089F16H3/38F16H2200/0052B60Y2400/421B60Y2400/428B60Y2200/92B60K2006/4816
Inventor 朴钟闰
Owner HYUNDAI MOTOR CO LTD
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