KR101197349B1 - 플러그-인 하이브리드 및 전기 차량을 위한 전력 관리 방법 - Google Patents

플러그-인 하이브리드 및 전기 차량을 위한 전력 관리 방법 Download PDF

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KR101197349B1
KR101197349B1 KR1020100023892A KR20100023892A KR101197349B1 KR 101197349 B1 KR101197349 B1 KR 101197349B1 KR 1020100023892 A KR1020100023892 A KR 1020100023892A KR 20100023892 A KR20100023892 A KR 20100023892A KR 101197349 B1 KR101197349 B1 KR 101197349B1
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electricity
current vehicle
vehicle
obtaining
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안쏘니 양 안-타오
양 추 주이
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알리스 에이알케이 코. 엘티디.
안쏘니 양 안-타오
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Abstract

플러그-인 하이브리드 전기 차량, 전기 차량 또는 사용자에 제어 명령 및 정보를 제공하기 위하여, 차량 위치, 이동 방향, 배터리 상태, 목적지, 및 그 밖의 다른 데이터를 이용하는 시스템이 제공된다.

Description

플러그-인 하이브리드 및 전기 차량을 위한 전력 관리 방법{Method of power management for plug-in hybrid and electric vehicle}
본 출원은 2009.3.17.자로 출원된 미국특허출원번호 61/210,222호를 기초로 우선권을 주장한다. 이 선출원은 본 출원 개시의 일부분으로 고려되며, 참조로서 인용된다.
플러그-인 하이브리드 및 전기 차량의 등장에 따라, 전기 에너지를 계속적으로 공급할 필요성이 제기되고 있다.
플러그-인 하이브리드 차량에서, 전기 및 화석 원료 모두가 차량을 추진시키기 위해 사용될 수 있으나, 화석 원료의 사용을 최소화함으로써 비용 절감 및 가스배출 감소 등의 많은 이점을 가질 수 있다. 플러그-인 하이브리드 차량의 배터리 레벨이 특정 방법으로 관리되지 않을 경우, 비교적 높은 배터리 레벨을 갖고도, 사용자는 자주 집이나 충전소에 들르게 된다. 따라서 플러그-인 하이브리드의 이점이 크게 감소한다.
전기 차량에서는, 배터리만이 전력 공급원이 된다. 소모된 배터리는 차량을 멈추게 할 것이다. 충전소나 배터리 교환소가 주유소만큼 충분히 충족되기 전에는, 전기를 모두 써버릴 경우의 불안감이 전기 차량의 판매를 방해할 것이다.
목적
주요 목적은 화석 연료의 사용을 최소화하도록 플러그-인 하이브리드 및 전기 차량을 위한 전력 관리 방법을 제공하기 위한 것이다.
또한, 전기 차량에 대하여 배터리의 소모를 방지하는 전력 관리 방법을 제공하기 위한 것이다.
개요
전기 차량에 긴급한 충전이나 배터리 교체가 요구되는 시점을 사용자에게 경보를 발하는 방법이 제공된다.
플러그-인 하이브리드 차량에 최대 전기의 양이 충전될 수 있도록 보장하기 위한 방법이 제공된다.
도 1 내지 3은 작동 단계의 흐름도를 도시한다.
도 1에 도시된 바와 같이, 본 발명의 원리와 일치하는 첫 번째 실시예에서, 차량 위치 탐색, 배터리 상태 획득, 차량으로의 모드 제어 명령 제공, 및 데이터베이스와의 데이터 통신이 가능한 전력 관리 시스템이 후술되는 방법에 의해 제어된다. 전기 차량이 작동중인 경우, 시스템은 배터리 상태, 차량 위치 및 이동 방향을 획득한다(101). 배터리 레벨은, 배터리가 소모되기 전에 차량이 이동할 수 있는 거리를 계산하는데 이용된다(102). 그 후 시스템은 시작 지점으로서 차량 위치를 취하고, 범위 내의 충전소를 탐색하기 위하여 배터리 소모 지점까지의 거리와 이동 방향을 이용한다(103). 충전소의 목록은 통신 링크를 통해 데이터베이스로부터 얻어진다. 유턴을 요하는 충전소는 그것이 마지막 충전소일 가능성이 없는 한 고려되지 않는다. 또한 시스템은, 이미 만원이 된 충전소는 제외한다. 차량이 배터리 교환소를 이용하도록 설계된 경우, 시스템은 배터리 교환소도 나타낼 수 있다. 그 후 시스템은 범위 내의 충전소의 개수가 미리 정해진 개수 n 개 보다 많은지 판단한다(104). 범위 내의 충전소가 미리 정해진 개수 n 개 보다 적은 경우 사용자에게 경보를 발한다(105). 이러한 제어 방법은 전기 차량 사용자에게 범위 내에 매우 제한된 충전소가 있음을 알릴 수 있다.
도 2에 도시된 바와 같이, 본 발명의 원리와 일치하는 두 번째 실시예에서, 차량 위치 탐색, 배터리 상태 획득, 차량으로의 모드 제어 명령 제공, 및 데이터베이스와의 데이터 통신이 가능한 전력 관리 시스템이 후술되는 방법에 의해 제어된다. 플러그-인 하이브리드 전기 차량이 작동중인 경우, 시스템은 미리 정해진 충전 장소, 차량 위치, 이동 방향 및 배터리 상태를 획득한다(201). 그 후 시스템은, 차량의 현재 위치로부터 충전소까지 필요한 전기의 양을 계산한다(202). 이동 방향은 차량이 충전 장소를 향해 주행하는지 또는 충전 장소로부터 멀어지도록 주행하는지 여부를 판단하는데 사용된다. 그 후 시스템은, 배터리 레벨이 차량의 현재 위치로부터 충전 장소까지 필요한 전기의 양보다 높은지 비교한다(203). 배터리 레벨이 필요한 전기의 양보다 높은 경우, 시스템은 차량이 전기 모드로 들어가도록 명령한다(204). 이는 차량이 배터리가 거의 소모된 상태로 충전 장소에 도착 하는 것을 확보함으로써, 플러그-인 하이브리드의 이점을 최대화할 수 있다. 차량의 대시보드에 버튼이 제공될 수 있는데, 이 버튼을 사용자가 누르면 차량은 이용 가능한 충전 장소로서 현재 위치를 자동으로 기록한다.
도 3에 도시된 바와 같이, 본 발명의 원리와 일치하는 세 번째 실시예에서, 차량 위치 탐색, 배터리 상태 획득, 차량으로의 모드 제어 명령 제공, 데이터베이스와의 데이터 통신이 가능한 전력 관리 시스템이 후술되는 방법에 의해 제어된다. 플러그-인 하이브리드 전기 차량이 잘 알려진 운송 목록(shipping list)과 목적지를 갖고 운송중인 경우, 시스템은 데이터 통신을 통해 데이터베이스로부터 목적지와 운송 목록을 획득하고, 차량 탑재 장치(on-board unit)로부터 차량 위치와 배터리 레벨을 획득한다(301). 시스템은 운송 목록에 따라 위에서 기술된 목적지에서의 정차 시간(stop-time)을 계산한다(302). 운송 목록상의 각각의 아이템을 위한 배달에 필요한 시간이 데이터베이스에 의해 제공된다. 시스템은 앞에서 계산된 정차 시간 내에 얼마나 많은 전기가 충전될 수 있는지 계산한다(303). 또한 시스템은 차량의 현재 위치로부터 목적지까지 필요한 전기의 양을 계산한다(304). 그 후 시스템은, 현재 배터리 레벨과 정차 시간에 충전될 수 있는 전기의 양을 합한 양에, 현 위치로부터 목적지까지 주행하는 데 필요한 전기의 양을 뺀 값이 배터리의 총 용량을 초과하는 지를 판단한다(305). 계산된 전기의 양이 배터리의 총 용량을 초과하는 경우, 시스템은 차량이 전기 모드로 들어가도록 명령한다(306). 이러한 방법은 차량이 각각의 목적지를 떠날 때 최대 전기의 양이 충전될 수 있도록 보장한다.

Claims (6)

  1. 삭제
  2. 삭제
  3. 삭제
  4. a) 충전 장소를 획득하는 단계와,
    b) 현재의 차량 위치를 획득하는 단계와,
    c) 배터리 레벨을 획득하는 단계와,
    d) 상기 현재의 차량 위치로부터 상기 충전 장소까지 이동하는데 필요한 전기의 양을 계산하는 단계와,
    e) 상기 배터리 레벨이 상기 현재의 차량 위치로부터 상기 충전 장소까지 이동하는데 필요한 전기의 양보다 큰 경우인지 판단하는 단계와, 그리고
    f) 상기 배터리 레벨이 상기 현재의 차량 위치로부터 상기 충전 장소까지 이동하는데 필요한 전기의 양보다 큰 경우, 자동차가 전기 모드로 들어가도록 명령하는 단계
    를 포함하는 것을 특징으로 하는 방법.
  5. 제 4 항에 있어서, 상기 방법은
    입력에 따라, 상기 현재의 차량 위치를 충전 장소로서 기록하는 단계를 더 포함하는 것을 특징으로 하는 방법.
  6. a) 목적지를 획득하는 단계와,
    b) 현재의 차량 위치를 획득하는 단계와,
    c) 운송 목록(shipping list)을 획득하는 단계와,
    d) 배터리 레벨을 획득하는 단계와,
    e) 상기 운송 목록에 따라 정차 시간(stop-time)과 목적지를 계산하는 단계와,
    f) 상기 정차 시간 내에 충전될 수 있는 전기의 양을 계산하는 단계와,
    g) 현재의 차량 위치로부터 상기 목적지까지 가는데 필요한 전기의 양을 계산하는 단계와,
    h) 현재 배터리 레벨과 정차 시간 내에 충전될 수 있는 전기의 양을 합한 양에, 현재의 차량 위치로부터 목적지까지 주행하는 데 필요한 전기의 양을 뺀 값이 배터리의 총 용량을 초과하는 지를 판단하는 단계와,
    i) 현재 배터리 레벨과 정차 시간 내에 충전될 수 있는 전기의 양을 합한 양에, 현재의 차량 위치로부터 목적지까지 주행하는 데 필요한 전기의 양을 뺀 값이 배터리의 총 용량을 초과하는 경우, 전기 모드로 주행하도록 상기 차량에 명령하는 단계
    를 포함하는 것을 특징으로 하는 방법.
KR1020100023892A 2009-03-17 2010-03-17 플러그-인 하이브리드 및 전기 차량을 위한 전력 관리 방법 KR101197349B1 (ko)

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