System and method for controlling a relay of an auxiliary battery

An auxiliary battery and relay technology, which is applied to battery circuit devices, power consumption devices, control devices, etc., can solve the problems of high-voltage battery energy loss and the inability to accurately adjust the charging/discharging current of auxiliary batteries.

Active Publication Date: 2021-05-04
HYUNDAI MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the degree of deterioration of the auxiliary battery, temperature, etc., the charging / discharging current of the auxiliary battery cannot be accurately adjusted to 0A, causing unnecessary charging / discharging in the auxiliary battery
[0010] Therefore, causing unnecessary energy loss to the high voltage battery

Method used

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  • System and method for controlling a relay of an auxiliary battery
  • System and method for controlling a relay of an auxiliary battery
  • System and method for controlling a relay of an auxiliary battery

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Embodiment Construction

[0035] The above-mentioned objects, features and advantages will become more apparent from the following description hereinafter described in detail with reference to the accompanying drawings. Therefore, those skilled in the art to which the present disclosure pertains can easily implement the technical idea of ​​the present disclosure. Further, in describing the present disclosure, in cases where it is determined that detailed descriptions of known technologies associated with the present disclosure may unnecessarily obscure the present disclosure, the detailed descriptions will be omitted. Hereinafter, embodiments of the present disclosure will be described in detail with reference to the accompanying drawings.

[0036] figure 1 is a block diagram showing a system for controlling a relay of an auxiliary battery according to an embodiment of the present disclosure.

[0037] Such as figure 1 As shown, the system for controlling a relay of an auxiliary battery according to ...

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Abstract

A method for controlling a relay of an auxiliary battery by a controller comprising determining whether a low DC-to-DC converter (LDC) is supplying electrons in a state-of-charge maintenance mode (SOC maintenance mode) of the auxiliary battery The power required by the load. As a result of the determination, the ON state of the relay in which the power of the auxiliary battery is supplied to the electronic load is maintained when the LDC does not supply the power required in the electronic load. As a result of the determination, when the LDC supplies power required in the electronic load, the relay is turned off so that the power of the auxiliary battery is not supplied to the electronic load.

Description

[0001] Cross References to Related Applications [0002] This application claims priority from Korean Patent Application No. 10-2016-0129935 filed with the Korean Intellectual Property Office on October 7, 2016, the entire disclosure of which is incorporated herein by reference. technical field [0003] The present disclosure relates to a system and method for controlling a relay of an auxiliary battery. [0004] In this disclosure, eco-friendly vehicles that drive vehicles driven by electric motors using high-voltage batteries include hybrid electric vehicles (HEV), electric vehicles (EV), plug-in hybrid electric vehicles (PHEV), fuel cell electric Vehicles (FCEV), etc. Background technique [0005] Generally, an eco-friendly vehicle includes a high-voltage battery for supplying driving power and an auxiliary battery for supplying operating power to internal electric devices (eg, electronic loads). In this case, when the voltage of the auxiliary battery does not exceed th...

Claims

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Application Information

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Patent Type & AuthorityPatents(China)
IPC IPC(8): H02J9/06
CPCH02J9/061H02J9/068H02J7/0048H02J7/0029B60L3/0046B60L58/12B60L2210/10H02J7/0068Y10S903/907B60L58/20H02J7/00304H02J7/342H02J2310/48Y02T10/70Y02T10/72Y02T10/7072Y02T90/12B60Y2200/90B60L53/53B60L2240/527
Inventor李浩仲李东俊权纳莱金志宪崔远景
OwnerHYUNDAI MOTOR CO LTD