An in situ self-diagnostic automotive alternator battery charging system is disclosed. Included are: a battery; voltage regulator sensing battery voltage and generating an excitation signal; and an alternator driven by a vehicle engine provide a rectified electrical signal to charge the battery in response to the excitation signal. Electronic circuit status detectors, variously coupled to the battery, voltage regulator and alternator, maintain a first logic state when a corresponding signal characteristic is within a predetermined range and a second logic state when the corresponding characteristic is outside the predetermined range. Combinatorial logic means respond to a logic state sequence from the detectors to identify predetermined sequences of the logic states resulting in the identification of faults in the charging system. The logic means also provides a warning to the operator of detection of a fault and a display of the location of the fault as occurring in one of the major components of the charging system.

Fault detection and diagnostic system for automotive battery charging systems.

A fuel injector which has a double solenoid three-way or four-way spool valve that controls the flow of a working fluid that is used to move an intensifier piston of the injector.

High speed fuel injector

An integrated thin-film solar battery having a plurality of unit elements connected in series includes a substrate, a plurality of spaced apart first electrode layers formed on the substrate; a plurality of semiconductor layers disposed on said plurality of first electrode layers in such a manner that each of the semiconductor layers is formed on two adjacent first electrodes and has a connection opening located on one of the two first electrodes, an electrically conductive layer formed on each of the semiconductor layers except on the region of the connection opening, and a second electrode layer disposed on each of the electrically conductive layers such that the second electrode layer is electrically connected to one of the two adjacent first electrode layers through the connection opening, to form a region interposed between the second electrode layer and the other first electrode layer as the unit element.

Integrated thin-film solar battery and method of manufacturing the same

A voltage regulator for a charging generator is disclosed which comprises an a.c. generator having armature windings and a field winding, and a battery which receives the rectified output of the a.c. generator and is charged by the same. The voltage regulator regulates the output voltage of the a.c. generator by controlling the current flowing through the field winding. To prevent the output voltage of the a.c. generator from becoming a high voltage when a connecting wire connecting the rectified output of the a.c. generator to the battery is broken, the regulator also includes an abnormality detection means which compares the rectified output of the a.c. generator with the battery voltage and detects the abnormality when both voltages are different by more than a predetermined value. This arrangement makes it possible to detect the abnormality at the point of time where the output voltage of the a.c. generator is not yet very high.

Voltage regulator for charging generator

In a data communication system, in particular for motor vehicle, the transmission lines that lead to the individual terminals are interconnected in a passive network node in a star configuration and are there provided with frequency-dependent attenuation means, preferably ferrite beads. Good characteristic impedance adaptation is thus obtained for suppressing high-frequency disturbing signals, while retaining free choice of the system parameter for the steady data symbolic state. The system may be enlarged by means of additional star networks into a tree or meshed structure.

Data communication system

In a voltage regulating system, a transistor switching circuit is connected to a voltage sensing circuit which detects a battery voltage and to a lamp. And at least when the voltage sensing circuit becomes disconnected from the battery, the transistor switching circuit is switched on to energize the lamp to inform a driver of the disconnection.

Voltage regulating system

A generator comprises an output winding connected to input terminals of a full-wave rectifier and a field winding. A resistor and diodes are also connected to the input terminals for supplying voltage to a voltage regulator. The generator, the rectifier and the voltage regulator are assembled together within a generator housing, so that a single conducting wire is sufficient for connecting the generator and a battery. The pole cores of the generator are made of low carbon steel the residual magnetism of which has been increased by a cementation process or by insertion of high carbon steel elements.

Current generating system

Voltage regulator for automotive generator

A generator has a positive and a negative output terminals across which a battery is connected, and another output terminal for generating an output power earlier than the positive output terminal when the generator begins to generate an output power. A field energizing circuit is connected to the other output terminal and a battery voltage responsive circuit to thereby establish a field excitation when the generator begins to generate the output power at the other output terminal and when the battery voltage is below a predetermined value, whereby the field excitation can be carried out earlier and battery discharge through the field energizing circuit is prevented during the time when the engine is stopped and a key switch remains closed.

Current generating system for motor vehicle

PURPOSE:To improve the coercive performance and promote the rising without imparing productivity by providing apertures to a core fabricated from a low carbon steel through cold forging and piling filler composed of high carbon steel into apertures

Kazumasa Mori

Papers

Voltage regulating system

Current generating system

Voltage regulator for automotive generator

Current generating system for motor vehicle

Selffexciting ac generator for vehicles