KR20210008816A - 차량용 외란 대처 시스템 - Google Patents
차량용 외란 대처 시스템 Download PDFInfo
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- B60T2201/00—Particular use of vehicle brake systems; Special systems using also the brakes; Special software modules within the brake system controller
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- B60T2201/00—Particular use of vehicle brake systems; Special systems using also the brakes; Special software modules within the brake system controller
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- B60T2210/00—Detection or estimation of road or environment conditions; Detection or estimation of road shapes
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Abstract
[해결 수단] 차량용 외란 대처 시스템을, 차량이 구비하는 브레이크 장치(50)와 스티어링 장치(12)와의 양방에 의해 횡풍 외란에 대한 대처를 행하게 하도록 구성함과 함께, 횡풍 외란의 영향을 경감시키기 위해 브레이크 장치에 의해 차량에 부여해야 할 브레이크 대항 모멘트(Mb)를, 외란의 발생 시점으로부터의 시간의 경과에 따라 점감시킨다(156, 158). 횡풍 외란에 대한 대처에 있어서, 차량의 감속이 억제된다.
Description
도 2는 제 1 실시예의 차량용 외란 대처 시스템을 구성하는 외란 대처 전자 제어 유닛이 가지는 외란 검출부의 기능을 나타내는 블록도이다.
도 3은 직진하고 있는 차량에 횡풍이 작용하고 있는 상태를 모식적으로 나타내는 도면, 및, 그 상태에 있어서의 2개의 규범 요 레이트와 실 요 레이트와의 관계를 나타내는 그래프이다.
도 4는 도 2에 나타내는 외란 검출부를 구성하는 횡풍 판정부의 기능을 나타내는 블록도이다.
도 5는 차량이 캔트로를 주행하는 상태를 모식적으로 나타내는 도면, 및, 그 상태에 있어서의 2개의 규범 요 레이트와 실 요 레이트와의 관계를 나타내는 그래프이다.
도 6은 제 1 실시예의 차량용 외란 대처 시스템을 구성하는 외란 대처 전자 제어 유닛이 가지는 외란 대처부의 기능을 나타내는 블록도이다.
도 7은 외란 대처부에 의해 결정되는 대처 제동력, 대처 조타력, 조정 게인을 각각 나타내는 그래프, 및, 결정되는 대처 제동력, 대처 조타력의 시간적인 변화를 나타내는 그래프이다.
도 8은 제 1 실시예의 차량용 외란 대처 시스템에 있어서 실행되는 외란 대처 프로그램을 나타내는 플로우 차트이다.
도 9는 제 2 실시예의 차량용 외란 대처 시스템을 구성하는 외란 대처 전자 제어 유닛이 가지는 외란 대처부의 기능을 나타내는 블록도이다.
도 10은 제 2 실시예의 차량용 외란 대처 시스템에 의한 외란에 대한 대처에 있어서 규범 주행 상태의 지표로서 특정되는 규범 주행 라인과 실주행 상태의 지표로서 특정되는 실주행 라인을 개념적으로 나타내는 도면, 및, 결정되는 조정 게인을 나타내는 그래프이다.
도 11은 제 2 실시예의 차량용 외란 대처 시스템에 있어서 실행되는 규범 주행 상태 의거 외란 대처 프로그램을 나타내는 플로우 차트이다.
Claims (9)
- 차량에 작용하여 그 차량을 편향시키는 외력인 외란에 대처하기 위한 차량용 외란 대처 시스템으로서,
외란의 발생을 판정하여, 외란의 영향의 정도를 추정하는 외란 검출부와,
추정된 외란의 영향의 정도에 기초하여, 그 외란에 대처하는 외란 대처부를 구비하며,
상기 외란 대처부가,
외란이 발생하고 있다고 판정된 경우에, 차량이 구비하는 브레이크 장치와 스티어링 장치와의 양방에, 그 외란에 대한 대처를 행하게 하도록 구성되고, 또한,
상기 브레이크 장치에 의한 외란의 대처에 있어서, 외란의 영향을 경감하기 위해 상기 브레이크 장치에 의해 차량에 부여해야 할 제동력인 대처 제동력을 결정함과 함께, 그 대처 제동력을, 외란의 발생 시점으로부터의 시간의 경과에 따라 점감시키도록 구성된 차량용 외란 대처 시스템. - 제 1 항에 있어서,
횡풍에 의한 외란에 대처하기 위한 차량용 외란 대처 시스템. - 제 1 항 또는 제 2 항에 있어서,
상기 외란 대처부가,
외란의 영향을 경감하기 위해 상기 스티어링 장치에 의해 차량에 부여해야 할 조타력인 대처 조타력을 결정함과 함께, 그 대처 조타력을, 외란의 발생 시점으로부터의 시간의 경과에 따라 점증시키도록 구성된 차량용 외란 대처 시스템. - 제 3 항에 있어서,
상기 외란 대처부가,
대처 조타력의 점증에 맞춰 대처 제동력을 점감시키도록 구성된 차량용 외란 대처 시스템. - 제 3 항 또는 제 4 항에 있어서,
상기 외란의 영향의 정도로서, 스티어링 조작에 기초하여 결정되는 차량의 요 레이트인 규범 요 레이트에 대한 실제의 요 레이트인 실 요 레이트의 편차를, 요 레이트 편차라고 정의한 경우에 있어서,
상기 외란 대처부가,
요 레이트 편차에 기초하여 대처 제동력을 결정하고, 요 레이트 편차의 적분값에 기초하여 대처 조타력을 결정하도록 구성된 차량용 외란 대처 시스템. - 제 5 항에 있어서,
상기 외란 대처부가,
대처 조타력을, 상기 요 레이트 편차의 적분값이 설정값을 초과한 시점에서 발생시키고, 또한, 그 시점으로부터의 상기 요 레이트 편차의 적분값의 증가에 따라 점증시키도록 구성된 차량용 외란 대처 시스템. - 제 1 항 또는 제 2 항에 있어서,
상기 외란 대처부가,
상기 스티어링 장치에 의한 외란에 대한 대처로서, 외란이 발생하고 있지 않으면 실현되어야 할 주행 상태인 규범 주행 상태를 실현시키기 위해 상기 스티어링 장치에게 차량을 자동 조타시키도록 구성된 차량용 외란 대처 시스템. - 제 7 항에 있어서,
상기 외란 대처부가,
차량에 마련되어 전방을 감시하기 위한 카메라에 의해 얻어진 정보에 기초하여, 상기 규범 주행 상태를 실현시키기 위해 상기 스티어링 장치에게 차량을 자동 조타시키도록 구성된 차량용 외란 대처 시스템. - 제 7 항 또는 제 8 항에 있어서,
상기 외란 대처부가,
상기 규범 주행 상태를 실현시키기 위해 행해지는 상기 스티어링 장치에 의한 차량의 자동 조타에 있어서, 조타량의 변화 구배를 설정 구배 이하로 제한하도록 구성된 차량용 외란 대처 시스템.
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US11608089B2 (en) * | 2020-11-09 | 2023-03-21 | GM Global Technology Operations LLC | Method and apparatus for automated lateral controls adaptation in response to rapid trajectory changes |
US12296898B2 (en) * | 2021-05-04 | 2025-05-13 | Mtd Products Inc | Jogwheel device and powered feedback and caster effect for drive-by-wire jogwheel design |
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