Abstract: An ignition timing controller for an automobile in which at least two reference ignition point signals are established for each cylinder, and the ignition timing is set according to the reference ignition point signal that is closer to the target ignition timing.

Abstract: A throttle value spindle (3) is rotatably fixed to a throttle body (1). A recess is provided within the throttle body at one side of the throttle value spindle along the axial direction of the throttle valve spindle. A holder (6) is fixed to the throttle valve spindle within the recess and has brushes (7) at the opposite side of the throttle valve spindle, which rotates together with the throttle valve spindle. Resistors (12) are mounted on a ceramics circuit board (8) fixed on a housing (12). The housing engages with the recess in such a manner that the resistors contact with the brushes. When the brushes slide on the resistors corresponding to the rotation of the throttle value spindle, an electric signal is outputted continuously from the resistors.

Abstract: In a multi-cylinder engine control method and a control apparatus therefor, rotating speeds of the multi-cylinder engine at explosion strokes of the respective cylinders are detected for estimating combustion pressures in the respective cylinders, and deviations of the combustion pressures in the cylinders are derived from the estimated combustion pressures in the respective cylinders, so that ignition timings or fuel amounts supplied to the respective cylinders are regulated in response to the derived deviations of the combustion pressures.

Abstract: An in-engine deposit detection apparatus for an engine control system is disclosed, comprising a sensor for detecting the output air-fuel ratio of the exhaust gas, a device for controlling the fuel supply amount according to the output air-fuel ratio from the sensor, acceleration detector for detecting a time point when an acceleration command is given the engine, a device for measuring a value based on the time length from a command time point detected by the acceleration detector to a time point that the sensor detects the shift of the output air-fuel ratio to rich side, a device for giving a reference value defining a limit of a normal range of the measurement obtained on the basis of the time length from the command time point detected by the acceleration detection means to the time point when the sensor detects that the output air-fuel ratio has shifted to rich side, and a device for comparing the measurement from the measuring means with a reference and deciding that there exists a deposit having an adv

Abstract: A power supply for a magnetron comprises an inverter circuit for converting a direct voltage obtained from a commercial frequency power source into an alternating voltage of a higher frequency by switching a switching element, a transformer with its primary winding connected to the inverter circuit, a voltage doubler with its input connected to a secondary winding of the transformer and with its output connected between a filament and an anode of a magnetron, and a resonant circuit formed in the voltage doubler for smoothing a current through the magnetron.

Abstract: An electric power steering device for generating and controlling auxiliary steering force using a motor, having, a detector for detecting operation force transmitted from a steering wheel to a steering mechanism of a vehicle, and a controller for controlling current supplied to the motor depending on the detected operation force, wherein the electric current is maintained zero when the detected operation force is smaller than a predetermined value and a proportional relationship is maintained between the detected operation force and the electric current when said detected operation force is greater than the predetermined value.

Abstract: A vehicular power supply system having a plurality of power supply voltages comprises a generator including first and second armature windings electrically isolated from each other and a field winding, a first rectifier unit converting a first a.c. output of the first armature windings into a first d.c. voltage, a second rectifier unit converting a second a.c. output of the second armature windings into a second d.c.

Abstract: A magnetic rotary sensor has a rotary drum carrying thereon magnetically recorded codes representative of discrete positions obtained by dividing one rotation of the drum into a predetermined number of positions. Further, an interval between the adjacent discrete positions identified by the codes is interpolated by interpolation signals generated on the basis of a sine wave signal and a cosine wave signal, which are so produced by magnetic signals additionally recorded on the drum that the periods thereof correspond to the interval. Accordingly, a magnetic rotary sensor can be realized, which is capable of identifying the rotational positions of a rotating body with high resolution without increasing the rotary drum in size.

Abstract: A double carburetor including a primary suction conduit and a secondary suction conduit located in a suction passage of an internal combustion engine equipped with a turbosupercharger for supplying supercharged air to a combustion chamber by means of a compressor driven by a turbine rotated by the energy of exhausts has an air-fuel ratio correcting control valve for a primary main fuel system of the primary suction conduit and another air-fuel ratio correcting control valve for a secondary main fuel system of the secondary suction conduit. The carburetor also has a drive unit which is operative, when the turbosupercharger is put into action, to actuate the air-fuel ratio correcting control valves for the primary and secondary main fuel systems to correct the air-fuel ratio of fuel-air mixtures supplied to the engine by increasing fuel flow or decreasing air flow therethrough.

Abstract: A voltage regulator for a charging generator comprising an a.c. generator, a rectifier for converting the a.c. output of the a.c. generator to a d.c., a battery connected to the output of the rectifier, comparison means for comparing the battery voltage with a reference voltage of a reference voltage generation circuit and a power transistor controlled by the output of the comparison means and controlling a current flowing through a field coil of the a.c. generator.The reference voltage generation circuit comprises a voltage divider connected to a constant voltage power source and providing its divided voltage as the reference voltage, a plurality of transistors connected in parallel with a part of the voltage divider, and conduction control means for controlling the transistor in accordance with the ambient temperature so that the reference voltage is determined in accordance with the ambient temperature.

Abstract: An engine control apparatus having a microcomputer which controls an operating condition modifying means to modify the operating condition of the engine, wherein the absolute value .DELTA.C of the difference, C.sub.now -C.sub.old is calculated from a previously obtained basic amount of control C.sub.old, and a newly obtained basic amount of control C.sub.now, a correction coefficient K is determined which takes a value of 1 to nearly 0 as the .DELTA.C is increased, and then the C.sub.set ofC.sub.set =K.times.(C.sub.now -C.sub.old)+C.sub.oldis calculated as an actual basic amount of control.