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Power train for a hydraulic hybrid vehicle with a planetary gear train including a detent system

A hybrid vehicle and powertrain technology, applied in the powertrain field, can solve problems such as the internal combustion engine not being optimized

Inactive Publication Date: 2017-05-24
TECHNOBOOST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, there is a problem with this type of drive train: the operation of the internal combustion engine is usually not optimized for different types of driving

Method used

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  • Power train for a hydraulic hybrid vehicle with a planetary gear train including a detent system
  • Power train for a hydraulic hybrid vehicle with a planetary gear train including a detent system

Examples

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Embodiment Construction

[0023] figure 1 Depicted is a vehicle powertrain 1 operated by a not shown control computer, the powertrain 1 comprising an internal combustion engine 2 equipped with an alternator 4 for generating electric current and an air conditioning compressor 6, the internal combustion engine 2 directly driving the planetary gear train 10 ring gear 12.

[0024] The planet carrier 16 of the planetary gear train 10 is fixed to a first gear 20 meshing with a second gear 22 fixed to a first intermediate shaft 24 comprising a third fixed gear 26 , Said third fixed gear 26 is connected to the ring gear of a differential 28 which distributes the movement to the two driving wheels on the same axle. This achieves a constant speed reduction ratio between the planet carrier 16 and the driving wheel.

[0025] The sun gear 14 of the planetary gear train 10 is connected with the first gear 32 through the free wheel 30, the first gear 32 meshes with the second gear 34, and the second gear 34 is fixe...

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PUM

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Abstract

A powertrain for a hybrid vehicle, comprising a hydraulic pump (36) recharging pressure accumulators (40, 42), which is linked to the sun gear (14) of a planetary gear train (10), an internal combustion engine (2) being linked to the ring gear (12), the drive wheels of the vehicle being linked to the planet carrier (16) of this planetary gear train, said powertrain (1) comprising a hydraulic engine (50) supplied by the accumulators (40, 42), which is linked to the drive wheels, characterised in that it comprises a system for immobilizing the planetary gear train (38), and a free wheel (30) positioned on the drive of the pump (36), which enables the internal combustion engine (2) to drive the vehicle forward when the planetary gear train (10) is blocked, leaving said pump stopped.

Description

[0001] This application claims priority from French application serial number 1258707, filed September 17, 2012, the disclosure of which (text, drawings and claims) is incorporated herein by reference in its entirety. technical field [0002] The invention relates to a power train for a hybrid vehicle using hydraulic energy, to a method of operating the power train, and to a hybrid vehicle comprising such a power train. Background technique [0003] The known hybrid vehicle type, described in particular by document FR-A1-2970908, comprises a power train comprising an internal combustion engine capable of directly driving the drive wheels of the vehicle on the one hand and hydraulically driven on the other hand pump to charge the hydraulic pressure accumulator, which is then used to power the hydraulic motor of the vehicle powertrain. [0004] More specifically, the internal combustion engine is connectable to a first element of a power distribution system including a planeta...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16H3/54B60K6/12F16H47/04F16H61/4096B60W10/103B60W20/00
CPCB60K6/12B60K2006/126B60W10/103F16H3/54F16H47/04F16H61/4096F16H2200/00F16H2306/00B60K6/383B60K2006/541B60W20/20B60Y2400/427F16H2037/0873F16H2200/2005F16H2200/2082Y02T10/62
Inventor F·古尔夫
Owner TECHNOBOOST
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