Fuji Jukogyo Kabushiki Kaisha

Nissan Motor Company Limited

Other

C.uyemura Co., Ltd.

Mitsubishi Petrochemical Company Limited

Nisshin Steel Co., Ltd.

Nagano Japan Radio Co., Ltd.

Denki Kogyo Company, Limited

Toyo Microsystems Corporation

Thomas & Betts Japan, Ltd.

Fujio Matsui

Seiichi Anzawa

Hiroshi Nishizawa

Masaaki Ohgami

Hitoshi Suzuki

Mitsunori Ishii

Yasuyuki Yamamoto

Mitsuo Nakamura

Shoichiro Mori

Makoto Shikata

Kazuhiko Ida

Hideaki Satoh

Setsuko Takahashi

Isao Saeki

Takemasa Yamada

Katsuhiko Ohara

Tetsuo Fusato

Atsushi Horio

Kikuko Tanaka

Chihiro Inoue

Kayoko Oku

Takashi Sakai

Fumitoshi Kimura

Isao Matsumoto

Kenzo Komatsu

Fumio Hine

Shihomi Hiroishi

Mikihiro Suzuki

A voltage detection circuit for detecting terminal-to-terminal voltages of a plurality of storage devices Band Bconnected in series. In the voltage detection circuit for storage devices, voltage judgment units VPL-, VPL-, VPH-and VPH-are provided between the terminals of the plurality of storage devices respectively, and the detection result of the initial-stage voltage judgment unit is transmitted to the next-stage voltage judgment unit without being isolated, so that the judgment result of the final-stage voltage judgment unit is obtained.

Voltage detection circuit for storage devices

A communication bufferof a node has a plurality of storage areas for storing transmission data of other nodes. The plurality of nodes receive data transmitted by the token passing communication method and store the received data to the storage area corresponding to the transmission originator by a micro-sequencer. The node specified as a transmission destination informs a receiving acknowledgment.

Multiplex communication method, the device and the system thereof

A current breaker circuit by which currents flowing in loads respectively connected to a plurality of storage devices connected in series are broken in accordance with a single external control signal. The current breaker circuit includes semiconductor switching devices inserted between the storage devices and the loads respectively, a unit for supplying the external control signal to at least one of the semiconductor switching devices, and control signal generating units for generating ON/OFF signals in accordance with turning ON/OFF of the semiconductor switching device supplied with the external control signal so as to supply the ON/OFF signals to the other semiconductor switching devices.

Current breaker circuit for storage devices, and abnormality detection circuit

A voltage equalizing apparatus for battery devices includes a core, a plurality of first battery devices interconnected in series with each other, each consisting of one or more cells, a plurality of secondary windings magnetically connected with each other through the core, a plurality of first switching devices, each connected to one of the plurality of secondary windings and one of the plurality of first battery devices to constitute a first closed circuit, one or more second battery devices provided separately from said plurality of first battery devices interconnected in series or a second battery device provided by rendering the whole of said plurality of first battery devices interconnected in series one battery device, a primary winding magnetically connected with the plurality of secondary windings through the core, and a second switching device connected in series with the second battery device and the primary winding to constitute a second closed circuit. The plurality of first switching devices and the plurality of second switching device are alternately turned ON and OFF to equalize the output voltages of the first battery devices. The plurality of first switching devices continue to be turned ON after exciting energy stored in the core is transported by the charging to the battery devices having lower voltages among said plurality of first battery devices, to effect the charging from the battery devices having higher voltages among said plurality of first battery devices to the battery devices having lower voltages among said plurality of first battery devices and/or to store energy in said core.

Voltage equalizing apparatus for battery devices

a voltage equalizing apparatus for battery devices includes a core, a plurality of first closed circuits and a second closed circuit. The plurality of first closed circuits each includes one of a plurality of first battery devices interconnected in series, one of a plurality of secondary windings magnetically connected with each other through the core, and one of a plurality of first switching devices. The second closed circuit includes a second battery device, a primary winding magnetically connected with the secondary windings through the core, and a second switching device. The first switching devices and the second switching device are alternately turned ON and OFF to equalize the output voltages of the first battery devices. The first switching devices continue to be turned ON after completion of the transportation of the exciting energy stored in the core. In the voltage equalizing apparatus for battery devices, the ON-duration ratio T /T between the ON duration T of the first switching devices S to Sn and the ON duration T of the second switching device S is set so that the voltages of the first battery devices B to Bn become a predetermined voltage.

In such a voltage equalizer circuit in which each of plural windings P to Pn electromagnetically coupled to each other, each of plural storage elements E to En series-connected to each other, and each of plural first switching elements S to Sn are connected to each other in a series connecting manner so as to constitute a plurality of closed circuits, this voltage equalizer apparatus is featured by that a reference voltage winding Pp electromagnetically coupled to the plurality of windings is provided; both a DC power supply Ep and a second switching element Sp are series-connected to the second winding; and all of the plural first switching elements and the second switching element are turned ON/OFF in a synchronous manner.

Voltage equalizer apparatus and method thereof

In a vehicle management system, a user uses a portable telephone dedicated to the own vehicle to enter a specific number that is pre-set for the portable telephone. This automatically brings a control apparatus incorporated in a vehicle to a standby state for wireless communication. The control apparatus calls a central information management center. Data stored in control apparatuses interconnected over a network within the vehicle is transmitted to the central information management center through the portable telephone. The central information management center preserves vehicle information in one-to-one correspondence with users, and distributes the data to departments. The condition of each vehicle is thus managed. Moreover, information concerning the condition of a vehicle, such as, the maintained state of a vehicle and the presence or absence of a defect is provided for each user.

Vehicle management system and method thereof

In a vehicle management system in accordance with the present invention, initial information of a vehicle and vehicle information of each user's vehicle that is put on the market are time-sequentially recorded in a database. A component of a vehicle or the system is diagnosed based on a time-sequential change of a learned value, and a deterioration in the performance of the component or system is grasped based on the initial information of the vehicle. Consequently, before an abnormality actually occurs in a vehicle, a user is notified of the possibility of the occurrence. This leads to improved preventive safety. Moreover, the result of diagnosis is fed back to departments concerned and reflected on quality control or development of a vehicle.

A connector eliminates any restriction in the arrangement of connecting pins, and makes a unit to be connected compact. A male type connector assembly includes a connector body formed with a cavity portion for receiving a female type connector assembly therein. A unit mounting an electronic device thereon is hierarchically connected to the connector body. The connector body and unit of the female type connector assembly are connected together through a contact. When the male type connector assembly and the female type connector assembly are connected together, the contact is connected to a receptacle contact mounted on the female type connector assembly.

Connector

Voltage equalizing apparatus and voltage equalizing method for battery devices

A drive unit for a hybrid vehicle includes: an internal combustion engine 1; a transmission 3 connected to the internal combustion engine 1 via a clutch 2; a primary differential gear 11 for distributing a driving force transmitted from the transmission 3, to primary driving wheels 17 and 18; a transfer 20 connected to the primary differential gear for taking out a part of the driving force transmitted from the transmission 3 to the primary differential gear 11; a pair of propeller shafts 26 and 27 formed by dividing two parts in axial directions for transmitting part of the driving force from the transfer to a secondary differential gear 33; an electric motor 31 provided between these propeller shafts 26 and 27; and a pair of clutches 29 and 30, each connecting the electric motor 31 to one of the pair of propeller shafts 26 and 27. Therefore, the drive unit can be used for 2WD or 4WD hybrid vehicles without changing the main components.

Drive unit for hybrid vehicle

A Zener diode 16 is connected to each of single cells 10 of an electric double layer capacitor in parallel, and a resistor 18 is connected to each of the Zener diode 16 in series. Thus, in a case where a single cell 10 is excessively charged, when the bias voltage of the single cell 10 is equal to or higher than the Zener voltage, a discharge current flows through the Zener diode 16 connected to the single cell 10, so that the voltage decreases to the Zener voltage. Thus, it is possible to prevent the electric double layer capacitor from being excessively charged due to the dispersions in electrostatic capacity and internal resistance, and to stably accumulate electricity for a long time.

Power supply unit for automotive vehicle

Disclosed is a method of treating an electroless nickel plating bath mainly containing a water-soluble nickel salt, a complexing agent for complexing the nickel salt, and sodium hypophosphite as a reducing agent for reducing the nickel salt, including the steps of:repeatedly regenerating and reusing the electroless nickel plating bath in which a phosphite is accumulated by adding nickel sulfate to the plating bath to produce and precipitate nickel phosphite and separating the nickel phosphite from the plating bath; and adding sulfuric acid or a mixture of sulfuric acid and sodium sulfate to the nickel phosphite separated from the plating bath to convert the nickel phosphite into nickel sulfate and phosphorous acid or NaH.sub.2 PO.sub.3, and recovering the nickel sulfate. According to this method, it is possible to simply, positively and inexpensively separate phosphite ions, without inclusion of any impurity, from an aged electroless plating bath in which phosphite ions are accumulated in a large amount, and to simply recover nickel sulfate from the nickel phosphite thus separated from the plating bath and effectively use the nickel sulfate as a reactive medium for removing a plating bath component or phosphite ions.

Method of treating electroless plating bath

An engine starting system for a vehicle includes a starter, a lead battery, an electric double layer capacitor which is connected in parallel with the lead battery, a starter switch and a control circuit for controlling current to the starter. The electric double layer capacitor is charged by the lead battery and discharge a large current to the starter when an engine is started. According to the construction of the control circuit, it is possible to control current discharged from the electric double layer capacitor so as to reduce damages on switches in the engine starting system. By using the electric double layer capacitor for the engine starting system, not only the burden on the lead battery at the engine starting can be reduced, but also the startingability of the engine can be improved.

Engine starting system for motor vehicle

A resonance circuit including a high frequency induction heating coil is set to a resonance state and a heating temperature of an object to be heated (for example, catalytic converter or the like) is controlled on the basis of a resonance frequency varied with an increased temperature of the object under the resonance state.

Growing community of inventors

Tokyo, Japan

Fujio Matsui