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Discharge technique for residual high voltage in hybrid vehicle and method thereof

A hybrid vehicle, high-voltage discharge technology, applied in the arrangement of multiple different prime movers of general power plants, power plants, electric vehicles, etc., can solve problems such as increased heat generation and increased time

Active Publication Date: 2013-01-30
HYUNDAI MOTOR CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, in the above embodiment, when the capacity of the internal capacitor is large and the capacity of the 12V battery is small, or the power consumption of the electronic device is small, the time of the above method may increase, and the heat generation may also increase

Method used

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  • Discharge technique for residual high voltage in hybrid vehicle and method thereof
  • Discharge technique for residual high voltage in hybrid vehicle and method thereof
  • Discharge technique for residual high voltage in hybrid vehicle and method thereof

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Embodiment Construction

[0019] Hereinafter, the present invention will be described with reference to the accompanying drawings so that those skilled in the art can practice the present invention.

[0020] It should be understood that the term "vehicle" or "vehicular" or other similar terms as used herein includes motor vehicles in general, including, for example, sports utility vehicles (SUVs), buses, trucks, various commercial vehicles Passenger vehicles, including boats and boats of all kinds, and aircraft, etc., and includes hybrid vehicles, electric vehicles, plug-in hybrid electric vehicles, hydrogen-powered vehicles and other alternative fuel vehicles (for example, from fuel from sources other than petroleum). As referred to herein, a hybrid vehicle is a vehicle that has two or more sources of power, such as both gasoline-powered and electric-powered vehicles.

[0021] By way of illustration, exemplary embodiments of the present invention include a system, method, apparatus, and computer read...

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Abstract

Disclosed is a technique for discharging a residual high voltage of a hybrid vehicle that includes a high voltage battery and a battery controller controlling the high voltage battery, a high voltage DC-DC converter connected to the high voltage battery to charge or discharge the high voltage battery, and a motor controller connected to the high voltage DC-DC converter to control a motor. A discharge control unit is connected to the motor controller to discharge the residual high voltage through the motor, and a shutdown control unit turns off the high voltage DC-DC converter and the motor controller when the discharge control terminates. In the system, a motor is used to reduce the discharge time to within several milliseconds and reduce heat generation at the same time. Furthermore, the system can control the amount of voltage discharged per hour in a system in which a capacitor of a large capacity is applied so that the discharge time can be reduced.

Description

technical field [0001] The invention relates to a discharge system and method for residual high voltage of a vehicle. More particularly, the present invention relates to a discharge system and method for a residual high voltage of a hybrid vehicle operating an electric motor. Background technique [0002] Conventionally, in the case of a fuel cell vehicle, when a fuel cell vehicle provided with a fuel cell "ultracapacitor" system including a braking register, chopper, "ultracapacitor" etc. requires a maintenance inspection, from A separate signal is input by the driver to turn on the discharge switch of the chopper to 100% duty cycle before shutting down the vehicle operation, after which the energy of the "supercapacitor" is reduced through the brake register until its voltage decreases to a predetermined value Until now, the chopper controls the discharge of the "supercapacitor". This embodiment is described in Korean Patent Publication No. 2008-0054292, which is hereby ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60R16/02B60K6/20B60L50/16
CPCB60L11/005B60L3/00Y02E60/12B60R16/02B60K6/20Y02T10/7077Y02T10/642B60L2220/54B60L3/04B60L50/40Y02T10/64Y02T10/70Y02E60/10B60W10/24H01M10/44
Inventor 丁泰荣洪代基
Owner HYUNDAI MOTOR CO LTD
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