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Electro-hydraulic hybrid drive vehicle power system

A hybrid drive and vehicle power technology, applied in electric braking systems, electric vehicles, pneumatic power devices, etc., can solve the problems of difficult control, low transmission efficiency, complex structure, etc., to reduce pollution and control the degree of freedom. , The effect of improving energy saving efficiency

Inactive Publication Date: 2018-08-21
NANJING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem solved by the present invention is to provide an electro-hydraulic hybrid drive vehicle power system to solve the problems of the existing vehicle power system with complex structure, difficult control, large mass and low transmission efficiency

Method used

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  • Electro-hydraulic hybrid drive vehicle power system
  • Electro-hydraulic hybrid drive vehicle power system
  • Electro-hydraulic hybrid drive vehicle power system

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Embodiment Construction

[0020] In order to illustrate the technical scheme and technical purpose of the present invention, the present invention will be further introduced below in conjunction with the accompanying drawings and specific embodiments.

[0021] combine figure 1 , an electro-hydraulic hybrid drive vehicle power system, comprising an electronic control unit 1, a motor 2, a battery pack 3, a first hydraulic accumulator 4, a variable hydraulic motor 5, a clutch 6, multiple sets of wheels 7, and a drive axle 10;

[0022] The battery pack 3 is connected to two motors 2, and the power output ends of the two motors 2 are respectively connected to a group of two wheels 7; the first hydraulic accumulator 4 is connected to the oil inlet of the variable hydraulic motor 5 , the first hydraulic accumulator 4 is used to store the recovered braking energy to assist driving and braking; the power output end of the variable hydraulic motor 5 is connected to the drive axle 10 through the clutch 6; the dri...

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Abstract

The invention discloses an electro-hydraulic hybrid drive vehicle power system comprising an electronic control unit, motors, a battery pack, a first hydraulic energy accumulator, a variable hydraulicmotor, a clutch, a plurality of sets of wheels and a drive axle. The battery pack is connected with the two motors, the output ends of the two motors are connected with two wheel in one set respectively, the first hydraulic energy accumulator is connected with an oil transportation inlet of the variable hydraulic motor, and the first hydraulic energy accumulator is used for storing recycled braking energy and auxiliary driving and braking; the variable hydraulic motor is connected with the drive axle through the clutch to drive the two wheels in another set, the electronic control unit is respectively connected with the motor, the first hydraulic energy accumulator, the variable hydraulic motor and the clutch, the electronic control unit controls the running working condition of the motorand the displacement of the variable hydraulic motor, the on-off of the first hydraulic energy accumulator and the engagement or separation of the clutch, and the battery pack supplies power to the motor and the electronic control unit. The electro-hydraulic hybrid drive vehicle power system has the advantages of infinitely variable speed and four-wheel driving, energy saving and enhancement of endurance.

Description

technical field [0001] The invention belongs to the technical field of vehicle energy saving and emission reduction and vehicle new energy, and in particular relates to an electro-hydraulic hybrid drive vehicle power system. Background technique [0002] Energy and environmental issues are increasingly acute, making the development of energy-saving and environment-friendly vehicles more and more people's attention. As the main development direction of new energy technology, pure electric vehicles have the advantage of high energy density, but due to the limitation of battery technology, battery life has become the main obstacle to its development. In addition, its power density is low, and its instantaneous energy absorption or energy release performance is poor, which makes the braking energy recovery effect unsatisfactory. Frequent charging and discharging of the battery pack in a short period of time increases the load and impact on the motor and the battery pack, affect...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60K17/356B60K17/354B60L7/10B60K6/00
CPCB60K6/00B60K17/354B60K17/356B60L7/10
Inventor 周海成徐照平刘梁张玲玲刘东
Owner NANJING UNIV OF SCI & TECH
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