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Hub motor hydraulic hybrid system

A technology of hybrid power system and wheel hub motor, which is applied in the direction of fluid pressure actuation system components, power devices, servo motor components, etc., can solve problems such as inability to meet power requirements, achieve good adaptability to working conditions, and facilitate layout and installation , the effect of small structure size

Inactive Publication Date: 2017-10-13
JILIN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention aims to solve the problem that traditional rear-drive heavy-duty commercial vehicles and engineering vehicles cannot meet the power requirements on low adhesion coefficient roads, steep slope roads and separated roads, and proposes a wheel hub motor hydraulic hybrid power system

Method used

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Embodiment Construction

[0029] The hub motor hydraulic hybrid power system of the present invention includes a hydraulic pump assembly 39, a control valve group 21, a control unit 1, a power take-off device 2, a power transmission device 3, a left front wheel 18, a hub hydraulic motor 17, a right The front wheel 20, the second hub hydraulic motor 19, the oil storage tank 15, and the accumulator 16.

[0030] The power transmission device 3 is a universal joint drive shaft, the power take-off device 2 and the power transmission device 3 are flanged or splined, and the accumulator 16 is connected to the Acc port of the control valve group 21 through a hydraulic pipeline; The rotor shaft of the No. 1 hub hydraulic motor 17 and the left front wheel 18 are connected by a spline pair or both are coaxially connected. The rotor shaft of the No. 2 hub hydraulic motor 19 and the right front wheel 20 are connected by a spline pair or both Coaxial connection, the hydraulic pump assembly input shaft 4 and the power t...

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Abstract

Aiming to solve the problem that traditional rear-wheel-drive heavy-duty commercial vehicles and engineering vehicles can not meet the requirement for power performance on low-adhesion coefficient pavements, heavy-gradient pavements and separated pavements, the invention provides a hub motor hydraulic hybrid power system. A hydraulic pump takes power from an engine through a power taking device; and a control unit outputs different control commands to enable a control valve bank to be switched to different working positions to realize multiple working modes including a freewheel mode, a hydraulic pump drive assistance mode, an energy accumulator drive assistance mode, a braking energy recovery mode and a parking charging mode. The hub motor hydraulic hybrid power system provided by the invention increases the power of an entire vehicle, improves the traction efficiency of the entire vehicle, and reduces the oil consumption of the engine by recovering part of vehicle braking energy so as to realize energy-saving and environment-friendly effects; and the hub motor hydraulic hybrid power system facilitates engineering realization and has better application prospects.

Description

Technical field [0001] The present invention relates to a hub motor hydraulic hybrid power system. More specifically, the present invention relates to a hydraulic hybrid power system that uses a hydraulic hub motor for front wheel auxiliary driving and allows energy recovery and the hub motor can be switched in series and parallel. Background technique [0002] Traditional rear-drive heavy-duty commercial vehicles and engineering transport vehicles have complex working environments. They often run on sandy, mud, ice and snow and other low-adhesion roads or steep roads, often causing problems such as slipping of the driving wheels and insufficient driving force. In order to solve this problem, the vehicle drive system is often designed as a mechanical four-wheel drive solution. However, this type of vehicle will generate parasitic power when running on a good road, and the vehicle has a large weight. Another solution with good application prospects is to adopt a mature technical h...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60K7/00B60K17/28F15B1/02F15B13/02F15B21/14B60T1/10
CPCB60K7/0015B60K17/28B60T1/10F15B1/02F15B13/02F15B21/14F15B2211/20523
Inventor 宋大凤冯涛曾小华李高志蒋渊德李文远李胜陈存福
Owner JILIN UNIV
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