Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Oil electrohydraulic four-wheel drive hybrid power system and control method thereof

A hybrid power system, oil-electric-hydraulic technology, applied in the arrangement of multiple different prime movers of power units, pneumatic power units, and general power units, etc. It can meet the needs of vehicle startup and the difficulty of instant charging and large current, so as to solve the problem of charging and discharging difficulties, reduce fuel consumption and exhaust emissions, and improve power performance.

Active Publication Date: 2014-04-23
TIANJIN ENG MACHINERY INST
View PDF4 Cites 12 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, although the accumulator is used alone for energy storage, although it has strong fast charging and quick release capabilities, its small energy density is not suitable for long-term charging or discharging, so it is only suitable for vehicles with frequent starting and braking conditions.
However, the use of batteries alone solves the problem of long-term charging and discharging, but it is difficult to charge and amplify the current instantaneously, which cannot meet the needs of starting the vehicle.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Oil electrohydraulic four-wheel drive hybrid power system and control method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0028] In order to further understand the invention and creation content, characteristics and effects of this patent, the following examples are exemplified, and detailed descriptions are as follows in conjunction with the accompanying drawings:

[0029] Such as figure 1 As shown, an oil-electric-hydraulic compound four-wheel drive hybrid power system includes an engine 1, the engine 1 is connected to the planetary gear carrier of the planetary gear train 15 through the clutch 2, and the outer ring gear of the planetary gear train 15 is connected to the transmission 21 as an output end , the transmission 21 is connected to an input end of the gear train 19, and the sun gear of the planetary gear train 15 is also connected to the motor 18 as an input end, and the motor 18 is electrically connected to the storage battery 16 through the inverter 17,

[0030] An output end of the gear train 19 is connected with a torque coupling 1313;

[0031] The torque coupler 13 has two input ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to an oil electrohydraulic four-wheel hybrid power system and the control method thereof. The oil electrohydraulic four-wheel hybrid power system has three power sources: an engine, a storage battery, and a hydraulic accumulator. The engine is successively mechanically connected with a clutch, an epicyclic train, a motor, a transmission and a gear train, an inverter is respectively connected with the motor and the storage battery, and a torque coupler is mechanically connected with an electromagnetic clutch and an output shaft of the hydraulic motor pump. A feed port of an overflow valve is communicated with an oil port of a hydraulic accumulator; a feed port of the hydraulic motor pump control assembly is communicated with an oil-out port of a pressure reducing valve. An oil tank is communicated with an oil-out port of the hydraulic motor pump, an oil-out port of the hydraulic motor pump control assembly, and an oil-out port of the overflow valve; an oil-out port of a two-way electro-hydraulic directional control valve is communicated with a feed port of the hydraulic motor pump. The oil electrohydraulic four-wheel hybrid power system has the advantages that the need of high power density and high energy density can be satisfied, the fuel economy of mobiles in different working situations, and the power performance of mobiles can be achieved.

Description

technical field [0001] This patent belongs to the technical field of hybrid drive technology for engineering vehicles, and in particular relates to an oil-electro-hydraulic compound four-wheel drive hybrid system and a control method. Background technique [0002] At present, air pollution has become one of the most important risk factors for human health. As the number of vehicles increases year by year, energy and environmental protection issues have become urgent. However, the traditional internal combustion engine technology is very mature, and it is difficult to change the current situation unless there is a replacement for new energy sources. Therefore, before the emergence of new energy sources, hybrid technology, as a new technology to reduce fuel consumption and reduce harmful gas emissions, has been paid more and more attention. [0003] The driving methods of hybrid electric vehicles are generally divided into three types: series, parallel and hybrid. No matter w...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): B60K6/365
Inventor 于安才孟广良宫立强李莺莺张卫东李磊杨清淞
Owner TIANJIN ENG MACHINERY INST
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products