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Construction method for electric car flying wheel battery auxiliary power system

A flywheel battery and auxiliary power supply technology, applied in electric vehicles, electric power devices, vehicle energy storage, etc., can solve the problems of battery charging, discharging, unfavorable battery life, and affecting battery life, and achieve high power density, wide application, and Effect of life improvement

Inactive Publication Date: 2004-12-15
XI AN JIAOTONG UNIV
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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 certain losses 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 discharge a large current, which is also detrimental to the life of the battery.

Method used

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  • Construction method for electric car flying wheel battery auxiliary power system
  • Construction method for electric car flying wheel battery auxiliary power system
  • Construction method for electric car flying wheel battery auxiliary power system

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Embodiment Construction

[0024] The present invention will be described in further detail below in conjunction with the accompanying drawings and the examples given by the inventor.

[0025] 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, an auxiliary power supply system of a flywheel battery is added, and the auxiliary power supply system is composed of a flywheel battery and a DC / DC voltage regulator.

[0026] The DC / DC voltage regulator includes a control circuit board and a DC / DC converter; the DC / DC converter part can use a variety of circuits that have been widely used, such as boost, buck, cuk converters and their combinations. Various converters; control circuit board and main power supply voltage sensor, main power current sensor through interface circuit; motor voltage sensor, motor current sensor; flywheel battery unit voltage sensor, flywheel battery ...

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Abstract

One auxiliary flywheel battery power source is increased on the basis of main power supply of electric car so as to regenerate and store the feedback energy of braking and to assist powering during acceleration and climbing. The auxiliary power source system consists of flywheel battery unit and DC/DC converting regulator. The small flywheel power source system can prolong the service life of the main power supply and the flywheel battery with great power density can assist the main power supply to improve the acceleration performance of the electric car. The present invention is easy to reconstruct the power supply system of electric car, and the technology may be used widely in electric car, electric motorcycle, electric bicycle, electric tricycle, etc.

Description

technical field [0001] The invention belongs to the technical field of electric vehicle drive control, and relates to a method for constructing an electric vehicle drive system that uses a flywheel battery as an auxiliary power supply and has an energy regenerative braking function and a short-term power boost function. The system can be applied to the field of electric vehicles. It can also be further extended and applied to electric vehicles such as electric motorcycles, electric tricycles, and electric bicycles. Background technique [0002] An important factor that restricts the wide application of electric vehicles is their short mileage, and regenerative braking is the key to saving energy and increasing the mileage of electric vehicles. It has significant economic value and social benefits. At present, many experiments at home and abroad It has been implemented in the car. The regenerative braking on the existing electric vehicle is to make the motor work in the gene...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60K1/04B60L50/30
CPCY02T10/7033Y02T10/7216Y02T10/70Y02T10/72
Inventor 曹秉刚周好斌白志峰高振华康龙云
Owner XI AN JIAOTONG UNIV
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