Charging control apparatus for vehicle generators
IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0618309
(1990-11-28)
|
우선권정보 |
JP-0309950 (1989-11-29) |
발명자
/ 주소 |
- Mayumi Nobuo (Toyohashi JPX) Tsuzuki Tomoni (Toyota JPX) Tanaka Kouzi (Anjo JPX)
|
출원인 / 주소 |
- Nippondenso Co., Ltd. (Kariya JPX 03)
|
인용정보 |
피인용 횟수 :
9 인용 특허 :
0 |
초록
▼
A battery charging control apparatus for a vehicle generator comprises switching means for controlling a field current flowing through a field winding of the generator intermittently, voltage control means for controlling the switching means to increase the field current gradually in order to mainta
A battery charging control apparatus for a vehicle generator comprises switching means for controlling a field current flowing through a field winding of the generator intermittently, voltage control means for controlling the switching means to increase the field current gradually in order to maintain a voltage of a battery to be charged at a first predetermined value when the battery voltage drops below the first predetermined value, generator output voltage detecting means for detecting an output voltage of the generator, charging abnormality warning means, which detects occurrence of charging abnormality, when the detected generator output voltage drops to assume a second predetermined value and below, which value is lower than the first predetermined value, and at the same time the battery voltage remains at the first predetermined value and below for a predetermined time, and which then turns on a charging abnormality warning lamp, and current increasing means which increases the field current to thereby increase the generator output voltage to assume the second predetermined value and above within the predetermined time, when the charging abnormality has occurred, whereby it is made possible to prevent erroneous lighting of the charging abnormality warning lamp.
대표청구항
▼
A charging control apparatus for a vehicle generator having a stator winding and a field winding and driven by an engine to generate an output voltage for charging a battery, said apparatus comprising: switching means, connected to said field winding, for controlling a current flowing through said f
A charging control apparatus for a vehicle generator having a stator winding and a field winding and driven by an engine to generate an output voltage for charging a battery, said apparatus comprising: switching means, connected to said field winding, for controlling a current flowing through said field winding; means for monitoring a voltage of said battery; voltage control means, responsive to said monitoring means, and connected to said switching means for receiving a first reference voltage and comparing said battery voltage with said first reference voltage, and for producing a controlling output for controlling said switching means to gradually increase the current flowing through said field winding at a first rate when the battery voltage drops to be lower than the first predetermined voltage; generator output voltage detecting means, connected to an output of said generator, for detecting an output voltage of said generator; charging abnormality warning means, connected to said generator output voltage detecting means, for detecting a charging abnormality and producing an indication to inform an operator of the charging abnormality, including means for receiving a second predetermined voltage lower than said first reference voltage and comparing the generator output voltage detected by said generator output voltage detecting means therewith, and means coupled to said comparing means of said voltage control means for receiving a first signal indicating that the battery voltage is at the first reference voltage or below and for delaying said first signal for a predetermined time to produce a delayed first signal, said indication produced when said generator output voltage is at or lower than said second predetermined voltage, and said delayed first signal is produced; and current increasing means coupled between said voltage control means and said switching means and receiving said controlling output of said voltage control means, for driving said switching means at an amount in accordance with said controlling output of said voltage control means, and for increasing an amount of driving of said switching means to increase the current flowing through said field winding to an increased rate higher than said first rate to thereby increase the generator output voltage to exceed the second predetermined voltage within said predetermined time, when the generator output voltage drops to the second predetermined voltage or lower and the battery voltage drops to the first reference voltage or lower.
이 특허를 인용한 특허 (9)
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Maedako, Minoru; Nakada, Yasuhiro, Condensive load protection device of self-excited generator.
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Kouwa, Tatsuki, Control unit of a vehicle generator.
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Sasaki,Junya; Sumimoto,Katsuyuki, Controller of AC generator for vehicle.
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Satoh Kiyokatsu,JPX, Generator voltage regulating system.
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Takase,Yasuhiro; Asada,Tadatoshi; Tanaka,Koji, Power generation controller.
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Kouwa,Tatsuki; Itou,Yoshihito, System for controlling a vehicular generator.
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Wild, Arthur, Time lag reduction circuit for alternating current generator and electric drive machine using same.
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Kawashima,Hideki; Ohtsuka,Hideaki; Kamata,Tatsuya; Shimizu,Kouichi; Saeki,Hideyuki; Aoyagi,Masanori, Vehicle drive force control apparatus.
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Iwatani Shiro,JPX ; Komurasaki Keiichi,JPX ; Watanabe Hirofumi,JPX, Vehicle generator controller.
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