Three-planet-row hybrid power system, hybrid power method and hybrid electric vehicle

A hybrid power system and planetary platoon technology, which is applied in hybrid vehicles, motor vehicles, power units, etc., can solve the problems of complex structure, low system power and economy, and low system efficiency.

Active Publication Date: 2020-07-07
GUANGZHOU AUTOMOBILE GROUP CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although this system has one more serial range-extending mode than THS, the system efficiency of this mode is low, and the system power and economy are not high, and the number of control elements is large and the structure is complicated

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  • Three-planet-row hybrid power system, hybrid power method and hybrid electric vehicle
  • Three-planet-row hybrid power system, hybrid power method and hybrid electric vehicle
  • Three-planet-row hybrid power system, hybrid power method and hybrid electric vehicle

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Embodiment Construction

[0060] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0061] like figure 1 As shown, the embodiment of the present invention provides a three planetary row hybrid power system, including an engine 20, a first motor 13, a second motor 14, three planetary rows, a first clutch 15, a second clutch 17, and a first brake 16 , the second brake 18, the power input member 21 for transmitting the torque of the engine 20 and the power output member 22 for transmitting the power of the system, the three planetary rows are respectively the first planetary row, the second planetary row row and the third planetary row, each of the planetary rows includes a sun gear, a planetary gear, a planetary carrier and a ring gear, that is, the first ...

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Abstract

The invention relates to the technical field of automobiles, and discloses a three-planet-row hybrid power system, a hybrid power method and a hybrid electric vehicle. According to the three-planet-row hybrid power system, a hybrid power system which is based on configuration of three planet rows and combines two clutches, two brakes, two motors and an engine is provided through reasonable layoutof a planet row mechanical structure, and various working modes are realized through different combinations of the operating elements. According to the hybrid power method utilizing the three-planet-row hybrid power system, four pure electric drive modes, two ECVT hybrid power modes, four engine direct drive / parallel drive modes and four brake energy recovery modes are achieved through specific on-off combination of all operating elements and control over the engine and the motors, so that the system performance of a gearbox is further improved, and higher transmission efficiency is further obtained. The hybrid electric vehicle has higher transmission efficiency and more excellent hybrid power performance (dynamic property and economy).

Description

technical field [0001] The invention relates to the technical field of automobiles, in particular to a three-planet hybrid system, a hybrid method and a hybrid vehicle. Background technique [0002] At present, the drive system of hybrid electric vehicles (including PHEV) mainly includes three basic forms: series connection, parallel connection and hybrid connection (power split type). In the series mode, there is no mechanical connection between the engine and the output shaft, and the optimal control of the speed / torque can be realized, but all its energy needs to be transferred to the output shaft after two conversions between mechanical power and electric power, and the energy loss is relatively small. Large; the transmission efficiency of the parallel connection is high, but the mechanical connection between the engine and the output shaft cannot ensure that the engine is always in a better working area, and it is usually used in medium and high speed occasions; the hyb...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60K6/365B60K6/38B60K6/44B60K6/48B60K6/547
CPCB60K6/365B60K6/38B60K6/44B60K6/48B60K6/547B60K2006/381B60K2006/4816Y02T10/62Y02T10/92
Inventor 凌晓明邰昌宁谢天礼刘学武周友张安伟梁东伟
Owner GUANGZHOU AUTOMOBILE GROUP CO LTD
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