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New energy electric vehicle super capacitor charging device

A super capacitor, electric vehicle technology, applied in electric vehicles, battery circuit devices, circuit devices, etc., can solve the problems of insufficient energy recovery, inability to recover power, and large converters

Inactive Publication Date: 2021-09-07
CHENGDU AERONAUTIC POLYTECHNIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The charging technology of new energy electric vehicles is particularly critical. The energy recovery of existing charging devices is not sufficient, and the converter is large in size, so it cannot recover electric energy during the braking process of the vehicle.

Method used

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  • New energy electric vehicle super capacitor charging device
  • New energy electric vehicle super capacitor charging device
  • New energy electric vehicle super capacitor charging device

Examples

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Embodiment Construction

[0023] The specific embodiments of the present invention are described below so that those skilled in the art can understand the present invention, but it should be clear that the present invention is not limited to the scope of the specific embodiments. For those of ordinary skill in the art, as long as various changes Within the spirit and scope of the present invention defined and determined by the appended claims, these changes are obvious, and all inventions and creations using the concept of the present invention are included in the protection list.

[0024] Such as Figure 1 to Figure 3 As shown, the new energy electric vehicle supercapacitor charging device of this scheme includes a main control chip, the main control chip is connected to the power bus through the input isolation switch circuit, the input isolation switch circuit is connected to the input voltage feedback circuit, and the input voltage feedback circuit is connected to the input current The detection ci...

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Abstract

The invention discloses a new energy electric vehicle super capacitor charging device which comprises a main control chip. The main control chip is connected with a power supply bus through an input isolation switch circuit; the input isolation switch circuit is connected with an input voltage feedback circuit; the input voltage feedback circuit is connected with an input current detection circuit; and the input current detection circuit is connected with a bidirectional BUCK-BOOST converter. The bidirectional BUCK-BOOST converter is connected with an output current detection circuit; the output current detection circuit is connected with an output voltage feedback circuit; and the output voltage feedback circuit is connected with a super capacitor through an output isolation switch circuit. The input voltage feedback circuit, the input current detection circuit, the bidirectional BUCK-BOOST converter, the output current detection circuit, the output voltage detection circuit and the output isolation switch circuit are all connected with the main control chip. A super capacitor charging circuit with a buck-boost function is formed, power optimization is carried out on a charging scheme through internal digital logic, and the functions of simplifying the circuit and reducing the cost are achieved.

Description

technical field [0001] The invention relates to the technical field of charging circuits, in particular to a supercapacitor charging device for new energy electric vehicles. Background technique [0002] New energy electric vehicle (BEV) refers to a vehicle that is driven by a vehicle-mounted power supply and driven by a motor to drive the wheels, and meets the requirements of road traffic and safety regulations. Due to its smaller impact on the environment than traditional cars, its prospects are widely optimistic. The charging technology of new energy electric vehicles is particularly critical. The energy recovery of existing charging devices is not sufficient, and the converter is large in size, so it cannot recover electric energy during the braking process of the vehicle. Contents of the invention [0003] Aiming at the above-mentioned shortcomings of the prior art, the present invention provides a new energy electric vehicle supercapacitor charging device capable of...

Claims

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Application Information

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IPC IPC(8): H02J7/34H02J7/00B60L50/40H02M3/158H02J9/06
CPCH02J7/345H02J7/0034H02J7/00304B60L50/40H02M3/1582H02J9/061Y02T10/70Y02T10/72
Inventor 刘纪李勇王子强门正兴陈虎魏扬帆
Owner CHENGDU AERONAUTIC POLYTECHNIC
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