Abstract: A device for controlling an AC motor for a fork lift truck comprises a detector to detect direction of rotation of an AC motor. The direction of rotation thus detected is compared with a desired direction of rotation of the AC motor, and the AC motor is controlled such that the AC motor operates in a power running mode when the actual direction of rotation of the AC motor is equal to the desired direction of rotation of the AC motor, but it operates in regenerative braking mode when said actual direction of rotation of the AC motor fails to be equal to the desired direction of rotation of the AC motor. The desired direction of rotation of the AC motor may be set manually by an operator or a driver of a vehicle drien by the AC motor.

Abstract: A fuel injection system according to the present invention comprises a plunger disposed in a cylinder, an actuator in the form of a piezoelectric element for effecting reciprocation of the plunger, a fuel supply passage for admitting fuel to the cylinder, a plurality of pressurized fuel delivery passages for distributing pressurized fuel among a plurality of injection valves, solenoid valves for opening or closing the plurality of pressurized fuel delivery passages, and a control circuit for activating the actuator and the solenoid valves.

Abstract: An apparatus and method for blow molding large hollow bodies, such as automotive fuel tanks and the like, is disclosed. A fluidized plastic material injection head is located above a given portion of rails. A plurality of mold carriers are disposed on the rails through wheels, each mold carrier carrying thereon mold halves. A clamping device is mounted on each mold carrier to clamp the mold halves together. A hydraulic press device is located near the injection head and presses the mold halves against each other to achieve a tight coupling of them when operated.

Abstract: An apparatus for use in an internal combustion engine operable on either of gasoline fuel and gasoline-alcohol fuel blend. The apparatus includes an alcohol concentration sensor for sensing the alcohol concentration of the fuel to be delivered to the engine, and an oxygen sensor sensitive to the oxygen content in exhaust gases discharged from the engine for producing an air/fuel ratio feedback signal. A difference of the air/fuel ratio from the stoichiometric value is calculated based on the air/fuel ratio feedback signal for a closed loop air/fuel ratio control. A correction factor is used to correct the amount of fuel delivered to the engine so as to provide fuel enrichment during high engine load conditions. In the event of failure of the alcohol concentration sensor, the amount of fuel delivered to the engine is determined with the alcohol concentration being set at a predetermined value.

Abstract: The first of a pair scissor like rocker arms is pivotally mounted at one end either by way of an adjust screw or a hydraulic lash adjuster and arangement to engage the top of a valve stem at the other. A cam follower which is located between the first and second ends engages a lift cam. The second of the rocker arms is pivotally mounted on the first one and has a closure cam follower at one end and engages the lower face of a retainer which secured to the top of the valve stem by way of a ring type collet. The shaft on which the second rocker arm is pivotally mounted can be provided with eccentric portions which enable the second rocker arm valve clearances to be adjusted separately from the adjustment of the first rocker arm clearance. The arrangement can be adapted to lift and close two valves.

Abstract: A mounting structure for mouting an EGR valve on an intake maniford of an internal combustion engine is disclosed. The intake manifold includes a flange in which boltholes having internal threads are formed. The EGR valve is mounted on the flange by means of bolts. The flange includes a coolant passage inside. Coolant flows into this coolant passage from a cooling system of the engine to cool the boltholes effectively so as to prevent the bolts from loosening due to thermal fatigue of the internal thread portions caused by the high temperatures of recirculated exhaust gas.

Abstract: An exhaust manifold is, which includes a plurality of steel members having the same metallic crystal structure in a range of working temperature, which are jointed with each other by permanent welding and spot welding at different places, wherein material for the spot welding is a material having a different metallic crystal structure than that of the steel members.

Abstract: An information transmitting and reception system applicable to a vehicle. The system comprises: (a) a plurality of information elements, some of which generating information for use by the remainder thereof, grouped into information sources and information receivers, the number of the information elements in the information sources and in the information receivers being limited to no more than a given number, (b) a plurality of information transmission units, each connected electrically to corresponding one of the information sources, (c) a plurality of information reception units, each connected electrically to corresponding one of the information receivers, and (d) means for connecting electrically each of the information transmission units to at least a corresponding one of the information reception units.

Abstract: A front roof rail is connected at an end portion to a trifurcated joint member which is in turn connected to a roof side rail inner and a front pillar inner. A bucking guide is provided to the front roof rail so that the front roof rail is liable to buckle in the place spaced away from the end portion toward a central portion when an external force is applied to a front corner portion of a roof in case of an accident as overturn of a vehicle. The buckling guide is constituted by a reinforcement member secured to the front roof rail or by a bead formed in the front roof rail.

Abstract: A system and method for automatically controlling a vehicle speed to a desired cruising speed applicable to vehicles in which a basic manipulated variable corresponding, for instance, to an operation time of either of acceleration or deceleration valve in an actuator for actuating an engine throttle valve of a vehicle in which the system is mounted toward the acceleration or deceleration direction which is derived on the basis of the vehicle speed and target cruising speed so that the vehicle speed coincides with the desired target cruising speed is corrected according to a transfer function of a response to the opening angle of the throttle valve to the manipulated variable. The response of the throttle valve to a change in the manipulated variable is measured and the transfer function is computed on the basis of the measured response to compensate for vehicle variations and aging effects.

Abstract: A system and method for detecting and determining knocking in an internal combustion engine in which various kinds of signals (engine vibrations, engine revolution speed, opening angle of a throttle valve, crank angle, ignition crank angle, and so on) are weighted by means of weight vectors so as to form a knocking decision signal. The knocking decision signal is compared with a reference signal so as to determine whether the knocking is occuring. The correctness or incorrectness of the determination result is determined on the basis of a highly accurate knocking detecting information provided by means of an external test device. The weight vectors are corrected in a direction in which the percentage of correct answers increases under the various engine operating conditions. The weight vectors thus corrected and learned are used to carry out highly accurate knocking detection under varying engine operating conditions.

Abstract: A gear arrangement capable of producing a differential effect is combined with a viscous coupling and two other coupling devices in a manner which enables the selective production of three output distribution modes in a vehicle that provides a user optional front, rear or "front plus rear" wheel drive.

Abstract: A IC device includes an underlying layer of a first conductivity type, an overlying layer of the first conductivity type, an isolation layer of a second conductivity type formed between the underlying and overlying layers, and an isolation region of the second conductivity type extending into the overlying layer from a top surface and separating a second portion from a first portion of the overlying layer. The device also includes a channel region formed in the first portion of the overlying layer to form a vertical MOSFET and an auxiliary region formed in the second portion of the overlying layer to form an auxiliary integrated circuit component. A recombination layer of polycrystalline silicon or other material having abundant recombination centers is located under the second portion of the overlying layer.

Abstract: A ratio control system for a continuously variable transmission employs proportional and integral control. When an error is greater than a predetermined value, a variation in a component of a shift command signal which is based on an integral control factor is restrained. A shift actuator is operable on the shift command signal to effect shifting in the continuously variable transmission.

Abstract: A seat with an arm rest is disclosed, which comprises a first structure constituting a structural base of a seat cushion part; a second structure constituting a structural base of a seat back part; a third structure constituting a structural base of an arm rest and detachably connected to the first structure; and a single cover member covering the first, second and third structures, the cover member having a peripheral edge which is detachably fastened to a given portion of the third structure latched to a holding structure attached to the first structure.

Abstract: A hydraulic pressure control system for reducing engagement shock of a frictional element when the transmission effects a change in gear position comprises an electromagnetically operated valve for generating a hydraulic pressure supplied to the frictional element and a control unit. In the control unit, the amount of torque transmitted via a torque converter to a transmission input shaft is determined through operations based on output signals of various sensors and data stored in a memory, and a target value of hydraulic pressure is determined in response to the amount of torque determined. The control unit supplies an output signal to the valve to cause the valve to adjust the level of the hydraulic pressure generated thereby to the target value.

Abstract: A torque detecting device has a measuring shaft and a magnetic circuit incorporating the measuring shaft into a magnetic path which includes a device for detecting a magnet-ostrictive force passing through said measuring shaft. The device is able to increase the output sensitivity, decrease the rotative fluctuation of output and decrease the hysteresis by making the measuring shaft forming the magnetic path from an iron base alloy having a specific composition.

Abstract: A control system for a passive seat belt arrangement of an automotive vehicle. A drive motor of the control system is in an electric circuit and adapted to operate the seat belt arrangement to release a vehicle occupant from its restraint upon being supplied with electric current. Electric current supply to the motor is accomplished by closing a handle switch in the electric circuit. The handle switch is adapted to be closed when a door inside handle is operated by a vehicle occupant who intends to open a vehicle door to get off the vehicle, thereby preventing the vehicle occupant from being released from restraint with the seat belt arrangement in case the door is opened contrary to the occupant's will. A speed-sensitive preventing means for preventing the drive motor from being energized when the vehicle is moving.

Abstract: A system and method for automatically controlling a vehicle speed to a desired cruising speed in which a transfer point at which control of the vehicle speed is transferred from that carried out by returning the vehicle speed to the cruising speed set through an operation of a set switch at a controllable acceleration in the vehicle speed to that carried out by controlling the vehicle speed so that the vehicle speed coincides with the set cruising speed is determined on the basis of a sum of an acceleration value multiplied by a constant and speed difference from the actual vehicle speed to set cruising speed. Consequently, an overshooting of the vehicle speed does not occur when the vehicle speed is returned toward and finally settles at the set cruising speed.

Abstract: An automotive antitheft key arrangement for locking and unlocking an automotive vehicular door and for operating an ignition system includes a transmitter, first and second receiving means for receiving an input code signal sent from the transmitter unit, and a discriminator including a comparator which compares the input code signal received by the first or second receiving means with a present code signal. The discriminator produces a first or second comparator output when these signals match each other. In response to the first or second comparator output, electrical power is applied to a door lock mechanism for locking and unlocking the door or a starter motor for causing the engine starting operation. The door lock system further includes means for preventing either the first or second comparator output from being produced in response to turn ON or OFF of a starting switch so that the first comparator output is not produced when the second comparator output is produced, and vice versa.