[특허]System and method for intelligent cruise control using standard engine control modes

System and method for intelligent cruise control using standard engine control modes 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B60K-031/00
출원번호	US-0396640 (1995-03-01)
발명자 / 주소	Chakraborty Shubhayu Mack William J.
출원인 / 주소	Eaton Vorad Technologies, LLC
대리인 / 주소	Brooks & Kushman P.C.
인용정보	피인용 횟수 : 72 인용 특허 : 0

초록 ▼

A system and method for implementing an intelligent cruise control using standard engine control modes includes a distance sensor to determine the distance and closing rate relative to a forward vehicle and use this information to implement a distance control mode and a speed control mode. The distance control mode maintains a selectable headway range relative to a forward vehicle and may include accelerating the vehicle or decelerating the vehicle by defueling, engaging an engine brake, or downshifting the transmission when engine speed permits. The speed control mode maintains a selectable cruising speed if no target vehicle is detected. This cruising speed set point also functions as an upper limit while in the distance control mode. The system and method effect the intelligent cruise control functions utilizing control logic external to the electronic engine control module utilizing the engine speed control mode or engine speed and torque limiting control mode of SAE J1922 or SAE J1939 standards. Alternatively, a cruise control limit speed may be broadcast via SAE J1587 to reduce the vehicle speed upon approaching a forward vehicle so as to reduce the need for driver intervention. The invention may periodically switch between engine control modes to avoid any control mode timeout imposed by some engine manufacturers.

대표청구항 ▼

[ What is claimed is:] [1.] A system for controlling vehicle speed to maintain a desired following distance in a vehicle with an engine controlled by an electronic control module having a plurality of engine control modes selectable via a communications interface, the system comprising:a sensor for detecting a forward vehicle and determining an inter-vehicle distance between the vehicle and the forward vehicle; andcontrol logic in communication with the sensor and in communication with the electronic control module for effecting a distance control mode when the forward vehicle is detected, the distance control mode including selecting at least one device for effecting a change in the vehicle speed based on the inter-vehicle distance and the desired following distance, determining a desired vehicle parameter value based on the inter-vehicle distance and the desired following distance, selecting one of the plurality of engine control modes via the communications interface, and communicating the desired vehicle parameter value to the electronic control module via the communications interface to control the vehicle speed, wherein the control logic is further operative to select one of the plurality of engine control modes based on a predetermined time interval so as to periodically switch between at least two of the plurality of engine control modes.

이 특허를 인용한 특허 (72)

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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

내보내기 구분	파일저장 인쇄 메일전송
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연합인증

System and method for intelligent cruise control using standard engine control modes 원문보기

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System and method for intelligent cruise control using standard engine control modes 원문보기

초록 ▼

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연구과제 타임라인

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이 특허를 인용한 특허 (72)

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