[특허]Electric lawn mower with intelligent control

Electric lawn mower with intelligent control 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	A01D-034/68
출원번호	US-0412733 (1995-03-29)
발명자 / 주소	Robertson Charles W. (P.O. Box 154 Rockland DE 19732)
인용정보	피인용 횟수 : 58 인용 특허 : 0

초록 ▼

There is disclosed an electric mower, preferably of the riding type, in which microcontrollers are interposed between quadrature controllers and motors operating each of the drive wheels. The microcontrollers are programmed to provide pulse width modulated current drive control and braking. Other functions are controlled electronically to assure operations that are not harmful to the operator, the motors, the battery or the lawn being mowed.

대표청구항 ▼

In an electric lawn mower for cutting lawns comprising: a frame supporting an operator station, a mower deck with at least one cutter blade rotated by an electric motor, and at least two opposed wheels driven by associated reversible electric wheel-drive motors, a source of electrical power for said wheel-drive motors and said at least one blade motor mounted on said frame, operating controls for mower-operator actuation associated with said operator station for directing electrical power selectively to each of said wheel-drive motors, and for directing said power to said at least one blade motor, an electrical system interconnecting said source of power, said operator controls and said wheel-drive motors and interconnecting said controls and said at least one blade motor; the improvement comprising: an intelligent control unit electrically interposed between each of said wheel-drive motors and said operator controls and a sensing unit associated with each of said motors for providing informational input to each of said control units from said wheel-drive motors, said control unit providing means to control current applied to each of said motors responsive to said mower-operator actuation of said operating controls.

이 특허를 인용한 특허 (58)

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Benson Terrance G., Constant speed control for electric greens mower.
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Jalbout, Bassam D.; Wong, Brian, Control of light intensity using pulses of a fixed duration and frequency.
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Fox, Ivan E.; Hauser, Raymond; Wyatt, Christopher K., Electronic steering apparatus.
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Wyatt, Christopher K.; Goetzelmann, Alan D.; Fox, Ivan E.; Vogel, Andy; Hauser, Raymond, Electronic steering apparatus.
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Hauser, Raymond; Bennett, Michael L.; Bell, Douglas W., Front steering module for a zero turn radius vehicle.
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Hauser, Raymond; Bennett, Michael L.; Bell, Douglas W.; Steenburg, Bryce E., Front steering module for a zero turn radius vehicle.
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Kullhem,Paul A.; Kinkead, III,Robert S.; Hines,Bradley H.; Rossini,Steven J., Gang type rotary lawnmower.
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Shibilski John ; Farr James B. ; Pfaff Joseph L., Microprocessor controlled motor controller with current limiting protection.
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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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저장형식	Text(ASCII format) Excel format PIAS분석(.xls)
메일정보	받는사람 (필수) @ 보내는사람 (선택) @ 제목 내용 KISTI 검색결과 이메일 서비스
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연합인증

Electric lawn mower with intelligent control 원문보기

초록 ▼

대표청구항 ▼

연구과제 타임라인

이 특허를 인용한 특허 (58)

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연합인증

Electric lawn mower with intelligent control 원문보기

초록 ▼

대표청구항 ▼

연구과제 타임라인

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이 특허를 인용한 특허 (58)

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