Aisin Seiki Kabushiki Kaisha

Aisin Seiki K.k.

Toyota Jidosha Kabushiki Kaisha

Yasutoshi Yamada

Nobuyuki Oota

Motonobu Akaki

Motonobu Akagi

Toshiya Sugiyama

Jun Abiko

Hiroyuki Nagata

Daisaku Sawada

Masaki Mitsuyasu

Souichi Matsushita

Hiroshi Okazaki

Masanobu Matsusaka

Shinichiro Iwasaki

Teruo Tatsumi

Susumu Sugimoto

Motonobu Araki

A windingly laminated core of a rotary electric machine, having a first number of magnetic poles in total and configured by unit cores, each of which is formed in an arc and thin plate shape and has a second number of magnetic poles, wherein a winding lamination is applied to the unit cores in a circumferential direction and in a spiral manner so as to form a cylindrical shape and a lamination thickness in an axial direction of the winding lamination is set to a predetermined thickness, includes an adjustment unit core having magnetic poles whose number is less than the second number, wherein the adjustment unit core is arranged at a start or an end of the winding lamination, in a circumferential direction, in order to align a rotational phase of the start of the winding lamination to a rotational phase of the end of the winding lamination.

Windingly laminated core of rotary electric machine including an adjustment unit core and manufacturing method thereof

A wiring component for a motor coil includes: a wire coil configured by a plurality of wire segments arranged in a circumferential direction so as to form a ring shape, each of the wire segments including an arc-shaped main-body portion made of a conductive wire rod bent in an arc shape, protruding portions formed at both end portions of the main-body portion and upright portions respectively formed at end portions of the protruding portions; an inner clip formed with a plurality of first holding portions at an outer circumferential surface of the inner clip; and an outer clip formed with a plurality of second holding portions at an inner circumferential surface of the outer clip. The inner clip and the outer clip are connected to each other so as to hold the wire coil between the first holding portions and the second holding portions.

Wiring component for motor coil

A stator of a rotary electrical machine includes a core unit configured by a plurality of core assemblies, around which wires are respectively wound to form the coils, including low voltage side terminals, which connect first ends of the coils, and a bus ring attached to the core unit so as to connect second ends of the coils to electricity supply wires by high voltage side terminals. Each terminal accommodating portion is individually formed relative to each of the core assemblies at an external side of the coils. Each of the terminal accommodating portions is filled with an insulating resin material in a state where at least one of a connecting portion of the first end and each of the low voltage side terminals and a connecting portion of the second end and each of the high voltage side terminals is accommodated within each of the terminal accommodating portions.

Stator of rotary electrical machine

A wiring component for a motor coil includes a wire coil configured by a plurality of wire segments arranged in a circumferential direction so as to form a ring shape, each of the wire segments including an arc-shaped main-body portion made of a conductive wire rod bent in an arc shape, protruding portions formed at both end portions of the main-body portion, and upright portions respectively formed at end portions of the protruding portions in a manner of bending one of end portions of each of the protruding portions so that the upright portions protrude in a direction vertical relative to a planar surface including the main-body portion. The wire coil is arranged to form a plurality of layers, thereby forming a cylindrical shape, and the upright portions, at which the adjacent wire segments contact each other in the circumferential direction thereof, are electrically connected to each other.

An electric power supply for a heater includes a heater, a battery electrically connected with the heater, a booster circuit electrically connected with the battery, a condenser disposed between the heater and the booster circuit and control element which controls a charge and a discharge of the condenser.

Electric power supply for a heater heating a catalyst for purifying

A fuel injection valve comprises a valve body having a injection port at an edge thereof, a needle valve member interposed in the valve body and opening or closing the injection port, a first spring member for energizing the needle valve member in a one direction, a piezoelectric device being a piezoelectric element having a cylindrical body mounted on the interior of the valve body in a condition that a positive or negative voltage is applied, and controlling the needle valve member in the direction of opening the injection port by applying a voltage changed over positively or negatively at the time of fuel injection while pushing the needle valve member in the opposite direction in response to the energizing direction of the first spring member, and a second spring member for providing a larger energizing force than the energizing force of the first spring member described above and being interposed between the valve body and the piezoelectric device described above. The fuel injection valve described above has a high durability and a large amount of fuel injection and is compact.

Fuel injection valve operated by expansion and contraction of

An excess voltage applied to a piezoelectric element is detected and controlled to improve durability and reliability of the piezoelectric element. A fuel injection control device for an internal combustion engine in which a power source voltage is boosted by a dc-dc converter and the so-boosted output voltage is supplied via a first choke coil and a first thyristor to a piezoelectric element for charging the piezoelectric element, the electric charge of which is subsequently discharged via a second thyristor and a second choke coil. The fuel injection control device includes a positive voltage detection unit for detecting an excess voltage arranged between the first choke coil and the first thyristor and a positive voltage control unit controlled by an output signal of the positive voltage detection unit and adapted for shorting both ends of the first choke coil. The current through the first thyristor is cutoff to prevent the excess voltage from being applied to the piezoelectric element.

Fuel injection control device for internal combustion engine

Piezoelectric element used in a fuel injection value is to be improved in its response to expansion and contraction, while the supply of an excess energy to the piezoelectric element is to be controlled. In a fuel injection control device in which an output voltage of the dc-dc converter is applied to a piezoelectric element via a choke coil and a thyristor, a current detection unit is provided between the dc-dc converter and the thyristor. A measured value of the electric charge, as found by integrating a charging current flowing through the current detection unit is compared by a comparator to a command value of electrical charges as found by processing the dc-dc converter output voltage. The results of comparison are supplied to a latch unit so as to be latched at the timing of a peak value of the charging current. A capacitor is charged and discharged depending on an output of the latch unit, and the terminal voltage across the capacitor and the output voltage of the dc-dc converter are compared to each other for controlling the output voltage of the dc-dc converter.

An after-burner system comprises an exhaust passage of an engine, a catalyzer to purify Hydrocarbon and located into the exhaust passage, a temperature sensor located in the catalyzer, a spark gap located in the exhaust passage at an upper stream side of the catalyzer, an ignition plug used for an ignition, and a central controller having an igniting controller controlling an ignition at the ignition plug and an after-burner controller controlling an electric discharge at the spark gap, wherein while the temperature sensor outputs a logical HIGH signal, the electric discharge is generated at the spark gap.

After-burner system

An ignition system has a burn sensor detects the condition of the burn of the fuel so that the ignition system stops supplying the current to the ignition plug when the burn of the fuel is detected. On the other hand, if the burn of the fuel is not sufficient, the ignition system keeps supplying the current to the ignition plug to make sure the burn to happen. Thus the ignition system can develop the energy efficiency and consumption.

Ignition system for an engine

An ignition system for two ignition current circuits including a condenser to supply the ignition current to the plug. The ignition current circuits provide the ignition current to the plug alternately in response to an ignition timing signal so that the first and second current circuit to supply the ignition current constantly.

An ignition system for an automobile including a spark circuit, a power supply circuit for supplying power, a switching circuit for supplying power from the power supply circuit to the spark circuit, a distributing circuit for controlling the switching circuit in accordance with a ignition timing signal, and a control circuit for receiving the ignition timing signal and for disabling the distributing circuit for a predetermined period of time in response to a value of the received ignition timing signal.

Ignition system

An ignition controlling device includes a spark plug, a first ignition coil for supplying an ignition current to the spark plug, a second ignition coil for supplying an ignition current to the spark plug and a controller for controlling the supplies of the currents to the spark plug from the first and second ignition coils.

Ignition controlling device

A DC voltage converting device having a choke coil, a switching device, a capacitor for accumulating electric energy, an inhibition setting device for setting and releasing an inhibition of charging, a current detecting device for detecting a charge current of the choke coil, a charge/discharge setting device for setting a discharge of the choke coil, and a driving device for conductively energizing the switching device. Based on this construction, when a capacitor voltage exceeds a predetermined voltage, only a time for interrupting the charge is extended.

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Chita, Japan

Yasutoshi Yamada