Abstract: A solid state control circuit controls handlebar heaters on a snowmobile or similar responding loads. Circuit is supplied by AC voltage with variations in frequency and waveform of the AC input. A portion of this input is rectified and compared with a rectified portion of the output voltage. The difference between these two signals is used to supply two amplifying devices. A control signal to a switching device selectively connects one polarity of the AC to the load. The circuit is adapted to be disabled by the application of an external voltage typically from a brake light switch and bulb. The opposite polarity of the waveform is controlled from the AC to the load by sensing the DC component across the load and using a second switching device to drive this DC value to a negligible value. Components are incorporated that are sensitive to temperature and also waveform to produce higher output heating at high vehicle speed and lower operating ambient temperatures or airflows.

Abstract: A power output apparatus 20 includes a clutch motor, an assist motor, and a controller. The clutch motor and the assist motor are controlled by the controller to enable the power output from an engine to a crankshaft 56, and expressed as the product of its revolving speed and torque, to be converted to the power expressed as the product of a revolving speed and a torque of a drive shaft and to be output to the drive shaft. The engine can be driven at an arbitrary driving point defined by a revolving speed and a torque, as long as the energy or power output to the crankshaft is identical. A desired driving point that attains the highest possible efficiency with respect to each amount of output energy is determined in advance. In order to allow the engine to be driven at the desired driving point, the controller controls the clutch motor and the assist motor as well as the fuel injection and the throttle valve position.

Abstract: A lightweight engine-driven generator set including a stator having at least first and second windings (preferably three-phase) and a rotor having a soft magnetic core and a plurality of high energy product permanent magnets, separated by consequence poles, disposed proximate the stator such that relative motion of the rotor and stator causes magnetic flux from the rotor to interact with and induce current in the stator windings. The first winding includes a predetermined number of turns corresponding to a first predetermined voltage output; and the second winding includes a predetermined number of turns corresponding to a second predetermined voltage output, the respective windings being grouped together as a unit and wound about the core such that the respective winding coils are wound in continuous close thermal contact with each other.

Abstract: In the engine braking operation of supercharged internal combustion engines, the braking power is generated by backing-up the exhaust gas before it enters an exhaust gas turbine of an exhaust gas turbocharger from an actuator in the exhaust gas duct. In order to make it possible to control the braking power within the operating limits of the exhaust gas turbocharger, the actual value and a maximum value of the turbine inlet pressure within the operating limits of the exhaust gas turbo supercharger are inferred from a performance graph of the internal combustion engine, which performance graph includes an electronically stored compressor performance graph of the supercharged air compressor which represents the relationship between mass throughput and total pressure ratio of the compressor and in which a plurality of engine operating lines for certain actuator positions and certain engine speeds as well as for a constant turbine inlet pressure are recorded.

Abstract: A pump controller (40) calculates a pump maximum absorbing horsepower and a pump required horsepower based on an accelerator signal, a pump delivery pressure and an operation signal, determines an engine required horsepower (PN) by selecting minimum one of both horsepower values, and calculates a pump required revolution speed based on the accelerator signal, the operation signal and an engine revolution speed signal to determine an engine required revolution speed (NN). The engine controller (40) determines, from the engine required horsepower (PN), a required-horsepower-referenced target engine revolution speed (NK) at which a fuel consumption rate is minimized, and selects larger one of the engine required revolution speed (NN) and the target engine revolution speed (NK) as an engine target revolution speed (NZ) to control an injected fuel amount and fuel injection timing, thereby controlling an engine torque and an engine output revolution speed.

Abstract: A starter for an engine equipped with a motor generator achieves lower cost and reduced sizes and capacities of circuit elements by reducing the assist load on the motor generator: it is provided with a motor generator (2) and a starting motor (10) connected to an engine (1); a startup state determining circuit (20) which determines the startup state from operating condition and selectively issues ON signals M1 and M2 to the motor generator and the starting motor; a key switch (6) which generates a start signal (Qe) at the time of starting the engine; and a temperature sensor 12 which generates a temperature signal (Te) corresponding to the temperature of the engine.

Abstract: This invention concerns to an axial flow turbine referred as to an hydroreactor, to take advantage of the kinetic energy from the water in relative depth places in rivers, estuaries or inlets, where the water streams are meaningful for the production of electric power.

Abstract: A generator control device disposed in a generator has a signal terminal to be connected to an outside control unit. The control device is composed of a voltage regulating circuit, a first circuit for controlling the regulating circuit according to a potential change of the signal terminal and a second circuit for changing potential level of the signal terminal according to a generator condition. The generator condition signal is transmitted through a signal wire to the outside control unit, and a switch-on signal of the ignition switch is sent to the control device through the signal wire from the outside control unit.

Abstract: A vehicle generator controller for regulating the output voltage from a generator which charges a battery mounted on a vehicle comprises battery voltage detection means for detecting the drop of a battery voltage, a switching element for controlling the field current of the generator, gradual increase control means for gradually increasing the current generated by the generator by gradually increasing the switching element by intermittently operating the switching element when the battery voltage drops and gradual increase prohibition means for canceling the gradual increase control at the beginning of the drop of the battery voltage and gradually increases the field current after the conducting ratio of the switching element is set to 100%. With this arrangement, the vehicle generator controller suppresses a torque shock caused in response to the turn-on of an electric load as well as sufficiently suppresses the drop of a battery voltage.

Abstract: In a starter for an engine, a magnet switch attracts a plunger by a magnetic force generated by a solenoid coil wound around a sleeve, so that a pinion fitted on an output shaft of a starter motor is driven by movement of the plunger to engage with an engine ring gear. The the plunger is pressed to contact tightly with the sleeve, whereby the relative movement between the plunger and the sleeve is restricted as long as the coil is held deenergized. The pressing may be attained by an inclined surface provided on the plunger or a flexture of a transmitting member which connects the plunger and a pinion.

Abstract: A wind power plant comprises a wind acceleration system having an accelerating wind means for acceleration of an incoming prevailing wind and a plurality of turbine chambers each of which is a closable outlet passage of the accelerating wind means and closed-off by a controlled closing-off means. The accelerating wind means includes regulating means for modulating accelerated wind speeds in the acceleration system. Each turbine chamber is used for mounting a wind driven turbine which is operatively connected to an electric generator by a mechanical transmission means and an adapted gearing to convert mechanical energy into electrical energy. A wind direction sensor, a wind speed sensor and a control unit are provided for controlling the operation of the wind power plant.

Abstract: An auxiliary power supply for a battery power system includes an engine-driven dynamo which provides auxiliary charging and power supply functions for maintaining optimal performance under a variety of conditions.