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Powertrain system for hydraulic hybrid vehicle, control method and hybrid motor vehicle

A technology of power transmission system and motor vehicle, applied in the field of hybrid motor vehicle, can solve the problems of high torque that cannot be used quickly, insufficient maximum torque, etc.

Active Publication Date: 2018-03-20
TECHNOBOOST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

High torque cannot be used quickly
[0011] Furthermore, once the maximum load level of the accumulator has been reached, the torque delivered by the hydraulic press is limited by the torque corresponding to this maximum level
This maximum torque delivered may always be insufficient

Method used

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  • Powertrain system for hydraulic hybrid vehicle, control method and hybrid motor vehicle
  • Powertrain system for hydraulic hybrid vehicle, control method and hybrid motor vehicle
  • Powertrain system for hydraulic hybrid vehicle, control method and hybrid motor vehicle

Examples

Experimental program
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Effect test

Embodiment Construction

[0029] Figures 1 to 3 A transmission comprising six shafts arranged parallel to each other is shown.

[0030] A hydraulic machine 2 with variable cylinder volume is coupled to the first input shaft 4 of this transmission, said first input shaft supporting a free-rotating drive wheel 6 which, when the first synchronizing sleeve 8 is engaged, It can be coupled with the input shaft through the first synchronous sleeve. In a variant, several hydraulic machines coupled to each other may be provided to increase the power delivered.

[0031] The drive wheel 6 of the first input shaft 4 meshes with a driven wheel 12 coupled to a first intermediate shaft 16 comprising a first output gear 14 machined directly thereon. This first output gear 14 meshes with a ring gear 18 of an output differential 20 which distributes movement to the two drive wheels of the vehicle.

[0032] When the first synchronizing sleeve 8 is engaged, the possibility of directly driving the drive wheels of the v...

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PUM

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Abstract

The invention relates to a power train for a hybrid motor vehicle, including a heat engine (34), as well as a hydraulic machine (2) and a hydraulic pump (64) which can be connected via a hydraulic circuit to high pressure accumulators (72), wherein said power train also includes a transmission comprising an output differential (20) connected directly to the hydraulic machine, and a planetary gear (30) having an outer ring gear (32), a planet carrier (40) and a sun gear (36), wherein said planet carrier is connected to the differential, and the ring gear and the sun gear are each connected to the heat engine and to the pump, respectively, characterized in that the hydraulic circuit comprises controlled means that form a direct passage (78) between the pump (64) and the hydraulic machine (2), and a closure (76) for the high pressure accumulators (72).

Description

technical field [0001] The present invention relates to a power transmission system for a hybrid motor vehicle, a control method for controlling the power transmission system, and a hybrid motor vehicle including such a power transmission system. Background technique [0002] A transmission of the known type for hydraulic hybrid motor vehicles, shown in particular by document FR-A1-2973302, comprises a first input coupled to a hydraulic press, a second input coupled to an internal combustion engine and a second input coupled to a hydraulic pump. Three inputs, and an output including driving the two drive wheels of the vehicle through a differential. [0003] The hydraulic press can be coupled with the differential through two different reduction gear trains (rapport de démultiplication), which are controlled by a first synchronizing sleeve. [0004] An internal combustion engine drives an outer ring gear of a planetary gear train including a sun gear coupled to a hydraulic ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16H61/4096B60K6/12F16H47/04
CPCB60K6/12F16H47/02F16H61/4096F16H2037/0866Y02T10/62
Inventor A·亚尔斯F·罗伊M·詹诺尼V·鲁斯
Owner TECHNOBOOST