[특허]Control system for electric vehicle

Control system for electric vehicle 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B60L-003/00 B60L-015/00
출원번호	US-0674841 (1996-07-03)
우선권정보	JP-0167405 (1995-07-03)
발명자 / 주소	Ito Hisahiro,JPX Tamenori Koji,JPX Shibutani Atsushi,JPX Kayano Morio,JPX Itoh Tomoyuki,JPX
출원인 / 주소	Honda Giken Kogyo Kabushiki Kaisha, JPX
대리인 / 주소	Nikaido, Marmelstein, Murray & Oram LLP
인용정보	피인용 횟수 : 25 인용 특허 : 0

초록 ▼

When the voltage of a battery is dropped down to a first threshold value (9.5 V) or less, the driving force of a motor is decreased to a level Y(0)-Y(7) of a limit power determined in accordance with a remaining capacity of the battery. When the voltage is not restored even after a predetermined time is lapsed from the decreasing of the driving force to the level Y(0)-Y(7), the driving force is further decreased down to a lower level Y(0)-Y(7). When the voltage of the battery is restored to a second threshold value (10 V), the driving force of the motor is gradually increased up to a level Z(0)-Z(7) of a limit power determined in accordance with the capacity of the battery. Thus, it is possible to prevent a deep discharging of the battery, while minimizing the influence on the traveling of the vehicle.

대표청구항 ▼

[ What is claimed is:] [1.] A control system for an electric vehicle including a battery and a motor connected to driven wheels, said control system comprising:motor control means for driving the motor by a driving force which is determined based upon an operational state of the vehicle;voltage detecting means for detecting a voltage of the battery;remaining capacity detecting means for detecting a remaining capacity of the battery:timer means; anddriving-force control means connected to said motor control means, said voltage detecting means, said remaining capacity detecting means and said timer means for limiting the driving force of the motor in accordance with a condition of said battery, wherein said driving-force control means includesfirst means which is operated such that when the voltage of said battery detected by the voltage detecting means is dropped down lower than a first threshold value, said first means decreases the driving force of said motor from a first level to a second level that is based upon the remaining capacity of said battery detected by the remaining capacity detecting means,second means which is operated such that when the voltage of said battery is not restored after a predetermined time is lapsed set by said timer means from the decreasing of the driving force of the motor caused by said first means, said second means further decreases the driving force of the motor,third means which is operated such that when the voltage of said battery is restored to a second threshold value which is higher than the first threshold value, said third means restores the driving force of the motor to a third level andfourth means which is operated such that when the voltage of said battery is between said first and second threshold values, said fourth means maintains the driving force of the motor at the second level,wherein an amount of decrease and an amount of restoration in the driving force of the motor are provided based on the remaining capacity of said battery and a resultant decreased or restored driving force of the motor is a maximum driving force the motor can output without causing damage to said battery.

이 특허를 인용한 특허 (25)

Clark, Warren; Bell, Jr., Oliver A., AC drive system for electrically operated vehicle.
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Clark, Warren; Bell, Oliver A., AC drive system for electrically operated vehicle.
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Clark,Warren; Bell,Oliver A., AC drive system for electrically operated vehicle.
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Iura,Hideaki; Kai,Tohru, AC motor control method and control device.
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Murakami,Yusai; Egoshi,Teruyoshi; Yamabe,Norito, Apparatus and method for controlling output of secondary battery, battery pack system, and electric vehicle.
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Atsushi Shibutani JP; Shinji Kato JP, Apparatus for judging deterioration of battery.
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Takahashi, Kenji, Control apparatus and control method for secondary battery.
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Clark, Warren W.; Bell, Oliver A., Drive system for electrically operated vehicle.
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Yoshida, Takashi; Saha, Subrata; Ogino, Daisuke; Izawa, Jin; Aoki, Kazuo, Dynamo-electric machine control system and vehicle driving system including the same.
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Hisada, Hideki; Aoki, Kazuo; Yanagawa, Shitomi, Electric vehicle drive control apparatus, electric vehicle drive control method, and program thereof.
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Bell, Jr., Oliver A.; Clark, Warren W., Hill hold for an electric vehicle.
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Kagoshima,Masayuki; Sora,Toshio; Komiyama,Masayuki, Hybrid construction equipment power control apparatus.
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Iwase, Shigenori; Yamada, Tadashi; Murata, Hiroshi; Uematsu, Nobuyoshi; Ushio, Takashi, Industrial vehicle.
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Joch Christoph,DEX ; Hadamik Matthias,DEX, Method and circuit arrangement for monitoring the operating state of a load.
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Kenneth James Farkas, Method of current interaction in an electric motor drive system having a load-dependent current generating system.
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Pehrson, Hans; Wingard, Sture, Motor assembly.
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Cepynsky George L. ; Slavik William H., Motor controller for preventing excessive battery discharging.
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Arnett, Michael; Rustoni, Alexander K.; McGrogan, Sean W.; Tamai, Goro, Output torque management in a vehicle having an electric powertrain.
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Amano, Masahiko; Masaki, Ryoso; Morooka, Yasuo, Power controller for a vehicle.
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Amano, Masahiko; Masaki, Ryoso; Morooka, Yasuo, Power controller for a vehicle.
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Tamagawa Yutaka,JPX ; Hirakawa Mitsuaki,JPX, Regenerative braking system.
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Yoshida, Takashi; Saha, Subrata; Ogino, Daisuke; Izawa, Jin, Rotary electric machine control system.
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Knight Steven J., Trolling motor battery gauge.
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Tanaka, Nobuyuki; Nagata, Shoji, Vehicle and control method for vehicle.
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Marwell, Stuart E., Vehicle component recognition and adjustment for energy efficiency.
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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

Control system for electric vehicle 원문보기

초록 ▼

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이 특허를 인용한 특허 (25)

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Control system for electric vehicle 원문보기

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이 특허를 인용한 특허 (25)

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