Super capacitance assistant power supply system of electric vehicle

A supercapacitor and auxiliary power supply technology, applied in electric vehicles, collectors, electric traction, etc., can solve the problems of battery charging and discharging, affecting battery life, and unfavorable battery life, achieving high power density, convenient technical transformation, and use wide range of effects

Inactive Publication Date: 2005-02-02
SUZHOU BINGLI ELECTRIC VEHICLE TECH
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  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

[0003] The main disadvantage of this solution is that when the vehicle brakes frequently, the battery will be charged and discharged frequently, which will cause a certain loss to the battery and affect the life of the battery.
In addition, the battery is the only power source of the electric vehicle. When the vehicle accelerates or climbs a hill, the battery will be discharged with a large current, which is also detrimental to the battery life.

Method used

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  • Super capacitance assistant power supply system of electric vehicle
  • Super capacitance assistant power supply system of electric vehicle
  • Super capacitance assistant power supply system of electric vehicle

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Embodiment Construction

[0023] The present invention will be described in further detail below in conjunction with the accompanying drawings and the examples given by the inventor.

[0024] see Figure 1~5 According to the technical solution of the present invention, the technical route of this embodiment is: on the basis of the original electric vehicle drive control system, add a super capacitor auxiliary power system, the auxiliary power system is composed of a super capacitor module and a voltage regulator. A supercapacitor module refers to a module formed by connecting several supercapacitor monomers in series and then connecting several groups in parallel. Determine the number of supercapacitor cells connected in series according to the rated voltage of the motor, and configure the number of groups of supercapacitors connected in parallel according to the amount of energy to be stored.

[0025] The voltage regulator includes a casing, and a control circuit board and a DC / DC converter are arran...

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Abstract

An auxiliary power supply system with super capacitors for the electrically driven vehicle is disclosed, which can store the regenerated and fed back braking energy and provide additional current to the motor when the vehicle is accelerating or climbing on slope. It is composed of the super capacitor module with high power density for releasing great current and the voltage regulator.

Description

technical field [0001] The invention belongs to the technical field of electric vehicle drive control, and relates to an electric vehicle drive system using a supercapacitor as an auxiliary power supply. Background technique [0002] An important factor that restricts the wide application of electric vehicles is their short driving range, and regenerative braking is the key to saving energy and improving the driving range of electric vehicles. It has significant economic value and social benefits. At present, many test vehicles at home and abroad above has been realized. The regenerative braking on the existing electric vehicle is to make the motor work as a generator when the vehicle brakes, convert kinetic energy or gravitational potential energy into electric energy feedback and store it in the battery. [0003] The main disadvantage of this solution is that the battery will be charged and discharged frequently when the vehicle brakes frequently, which will cause certain...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60L1/00B60L11/00B60L11/18
CPCY02T10/7022Y02T10/7005Y02T10/70
Inventor 曹秉刚白志峰周好斌康龙云林家让
Owner SUZHOU BINGLI ELECTRIC VEHICLE TECH
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