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Control method for powertrain of hydraulic hybrid vehicle for driving additional devices

A technology for power transmission systems and hybrid vehicles, which is applied to the layout of multiple different prime movers of hybrid vehicles and general-purpose power plants, power devices, etc., and can solve problems such as expensive and increased volume

Inactive Publication Date: 2019-01-11
TECHNOBOOST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This solution of relying on the on-board grid battery for charging is equally expensive and also poses the problem of increased volume

Method used

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  • Control method for powertrain of hydraulic hybrid vehicle for driving additional devices
  • Control method for powertrain of hydraulic hybrid vehicle for driving additional devices

Examples

Experimental program
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Embodiment Construction

[0031] figure 1 A power train of a hydraulic hybrid vehicle is shown, comprising an internal combustion engine 2 driving a planet carrier of a planetary gear train 4 .

[0032] The planetary gear train 4 comprises an external ring gear connected to a drive gear 6 driving a driven gear 8 supported by a parallel shaft 12 which itself supports a drive gear driving the ring gear of the differential 10 . The differential drives the two front drive wheels 14 of the vehicle through wheel axles 16 .

[0033] Planetary gear train 4 includes planetary gears directly coupled to hydraulic pump 20 which receives fluid from low pressure storage device 24 for charging high pressure storage device 22 . Hydraulic pump 20 can be operated in reverse by receiving energy from high pressure storage device 22 in order to transmit engine torque to planetary gear train 4 .

[0034] The reversible hydraulic machine 26 comprises a shaft connected to a drive gear 28 which meshes with a driven gear 30 s...

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PUM

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Abstract

A method for controlling a powertrain of a hybrid vehicle, provided with a heat engine (2) driving rotating machines of accessory functions (40, 42, 44), a first auxiliary machine (26) which, in one operating mode, provides the vehicle with traction while the heat engine can remain stopped, and a second auxiliary machine (20) that can, in this mode, drive the heat engine, characterised in that, in this operating mode, in case of a need to drive rotating machines (40, 42, 44) in order to obtain accessory functions, it controls the second auxiliary machine (20) to rotate the heat engine (2), while keeping the fuel injection of same cut off.

Description

technical field [0001] The present invention relates to a method of managing a powertrain of a hybrid motor vehicle, and to a powertrain comprising components implementing such a management method and a hybrid motor vehicle. Background technique [0002] A hybrid vehicle typically includes a fueled internal combustion engine that forms the primary power plant, and a second power plant coupled to an auxiliary energy storage device that operates as an engine by consuming this energy, or otherwise by Energy is generated to charge the storage device to operate as a generator during vehicle braking. The auxiliary energy can in particular be electricity, hydraulic pressure or pneumatic pressure. [0003] A known transmission for a hydraulic hybrid motor vehicle, shown in particular by document FR-A1-2973302, comprises a planetary gear train comprising: a ring gear coupled to an internal combustion engine, a planetary gear coupled to a hydraulic pump Gears, and a planet carrier c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60K6/12B60K6/445B60W10/06B60W10/08B60W20/00
CPCB60K6/12B60K6/445B60W10/06B60W10/08B60W20/00B60W2710/0644Y02T10/62
Inventor J·萨布里耶R·科贝P·米兰达
Owner TECHNOBOOST
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