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

Passive series composite power source braking energy recovery system

A technology of braking energy recovery and composite power supply, applied in electric braking systems, electric vehicles, power management, etc., can solve the problems of large volume, complicated control, low recovery efficiency, etc., to reduce volume and weight, and improve continuous driving. The effect of mileage and life extension

Inactive Publication Date: 2019-09-17
JIANGSU UNIV
View PDF6 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The existing composite power supply structure is mainly based on active parallel connection, which has a series of problems such as large volume, low recovery efficiency, and complicated control.
There are also problems in circuit protection and braking current control in the series composite power supply that need to be solved

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
  • Passive series composite power source braking energy recovery system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0019] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0020] Such as figure 1 As shown, a passive series composite power supply braking energy recovery system includes a motor controller K, a motor M, a battery B, a switch J, a rectifier bridge, a diode D4, a supercapacitor C and a controller, and the rectifier bridge includes thyristors T1~ T3, diodes D1-D3, thyristor T1 and diode D1, thyristor T2 and diode D2, thyristor T3 and diode D3 are connected in series and then in parallel. The composite power supply composed of supercapacitor C and battery B in series is connected to the input terminal of the motor controller K, the output terminal of the motor controller K is connected to the motor M, and the three phases of the motor M are connected to the input terminal of the rectifier bridge; the positive pole of the rectifier bridge (the output terminal of the rectifier bridge 1 ) is con...

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 discloses a passive series composite power source braking energy recovery system. The passive series composite power source braking energy recovery system comprises a storage battery, a motor, a motor controller, a rectifier bridge, a supercapacitor, diodes, a switch and a controller. During regenerative braking, a three-phase counter electromotive force only charges the supercapacitor through the rectifier bridge, and the storage battery dose not participate in energy recovery; in the driving process, the storage battery is in series connection with the supercapacitor to output electric energy; through the diodes in parallel, the battery is prevented from conducting reverse charging on the supercapacitor; the system can be switched to be in storage battery single driving mode, and thus energy consumption of an output current on the diodes during long-time outputting is avoided; the controller controls switching of the switch, the strict requirements during switching are avoided, that is, zero-current switching can be conducted in a non-driving state; and the controller continuously detects the voltage at the supercapacitor end, the voltage of the storage battery, and the braking vehicle speed, and sends a PWM signal to control on-off of a thyristor in the rectifier bridge, direct current chopping of a braking current is achieved, and the electric braking deceleration is controlled. The passive series composite power source braking energy recovery system utilizes the rectifier bridge to recover braking energy, and the energy utilization rate is increased.

Description

technical field [0001] The invention belongs to the technical field of electric vehicles, and in particular relates to a passive series composite power supply braking energy recovery system. Background technique [0002] At present, the problems of environmental pollution and energy shortage have promoted the rapid development of electric vehicles. However, problems such as insufficient driving range and short service life of batteries are still roadblocks to the development of electric vehicles. The regenerative braking system can convert the kinetic energy of the vehicle into electrical energy and store it, effectively increasing the driving range of electric vehicles. [0003] Recycling the braking energy directly to the battery will cause the battery to be impacted by a large current, which will seriously affect the life of the battery. The super capacitor has the characteristics of high power density, fast charging and discharging, etc., so combining it with the power b...

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): B60L7/10B60L50/40B60L50/60
CPCB60L7/10B60L50/40B60L50/60Y02T10/70Y02T10/72
Inventor 陈燎盘朝奉洪健李金桐李银刚王健
Owner JIANGSU UNIV
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

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com