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Low voltage dc-dc converter for environmentally friendly vehicles

A DC-DC, environment-friendly technology, applied to vehicle components, vehicle energy storage, converter types, etc., can solve problems such as accidents

Active Publication Date: 2020-01-14
HYUNDAI MOTOR CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the auxiliary battery is fully discharged, the vehicle will be shut down, therefore, an accident will occur

Method used

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  • Low voltage dc-dc converter for environmentally friendly vehicles
  • Low voltage dc-dc converter for environmentally friendly vehicles
  • Low voltage dc-dc converter for environmentally friendly vehicles

Examples

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Embodiment Construction

[0023] Hereinafter, some exemplary embodiments of the present invention will be described in detail with reference to exemplary drawings. It should be noted that in giving reference numerals to components of each drawing, the same components will be denoted by the same reference numerals even though they are shown in different drawings. Also, in describing the exemplary embodiments of the present invention, where well-known structures or functions may unnecessarily obscure the understanding of the exemplary embodiments of the present invention, they will not be described in detail.

[0024] In describing the exemplary embodiments of the present invention, terms such as 'first', 'second', A, B, (a), (b), etc. can be used. These terms are only used to distinguish a component from another component. Therefore, the nature, order, sequence, etc. of the corresponding components are not limited by these words. Also, unless otherwise defined, it should be understood that all terms u...

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Abstract

The invention provides a low-voltage DC-DC converter for an environment-friendly vehicle. The converter includes an output current limit map applier configured to output an output current limit using the output current limit map. The power controller is configured to amplify the output limit output from the output current limit map applier by a predetermined gain. Furthermore, the output limiter is configured to output the output limit value output from the power controller, and after a lapse of a predetermined time, filter and output the output limit value.

Description

technical field [0001] The present invention relates to a low-voltage direct current (DC: direct current)-DC converter of an environment-friendly vehicle, and more particularly, to a low-voltage DC-DC converter capable of improving the efficiency of a vehicle by effectively limiting the output of an environment-friendly vehicle. driving performance technology. Background technique [0002] Generally, general internal combustion engine vehicles use fossil fuels such as gasoline, diesel, etc., and the fuels cause environmental pollution due to exhaust gas, global warming due to carbon dioxide, and respiratory diseases due to ozone production. Furthermore, there are finite amounts of fossil fuels on earth and they can be depleted. In order to solve the above problems, environmentally friendly vehicles have been developed, for example, an electric vehicle (EV: electric vehicle) driven by a drive motor, a hybrid electric vehicle (HEV: hybrid electric vehicle) driven by an engine...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02M3/157
CPCH02M3/157B60L1/00B60L3/003B60L2210/12B60L2240/526B60L2240/529B60L2240/547B60L2240/549B60L2240/80B60L2240/527B60L50/51B60L58/20Y02T10/70Y02T10/72Y02T10/7072Y02T90/14B60L53/20H02M3/04H02P27/08
Inventor 金志宪李东俊孙基鳯崔远景成玄旭
Owner HYUNDAI MOTOR CO LTD