Abstract: A brushless motor includes a stator including teeth each including a constricted portion on which a coil is to be wound, and a tip end portion including a confronting surface that faces a rotor and having a width greater than that of the constricted portion. A spacer includes closure members disposed between adjacent ones of the tip end portions, and fitted to the teeth so that the confronting surfaces of the teeth are exposed toward the rotor.

Abstract: A driving unit includes a stator, a housing including a tubular section to accommodate the stator, a cover coupled to the housing to block an upper opening of the tubular section, and a bent wire rod defined by a wire to press the stator against the tubular section, the bent wire rod being arranged between a top surface of the stator and a rear surface of the cover while being compressingly deformed along an axis of the stator. The bent wire rod has an annular or substantially annular shape with an opened portion when seen along the axis, and includes projections projecting upward along the axis and depressions projecting downward along the axis being arranged alternately and successively. An elastic force from the bent wire rod causes the stator to receive a downward force along the axis. The stator is pressed against the tubular section to hold the stator in the housing.

Abstract: A driving unit includes a stator, a housing including a tubular section to accommodate the stator, a cover coupled to the housing to block an upper opening of the tubular section, and a bent wire rod defined by a wire to press the stator against the tubular section, the bent wire rod being arranged between a top surface of the stator and a rear surface of the cover while being compressingly deformed along an axis of the stator. The bent wire rod has substantially annular shape with an opened portion when seen along the axis, and includes projections projecting upward along the axis and depressions projecting downward along the axis being arranged alternately and successively. An elastic force from the bent wire rod causes the stator to receive a downward force along the axis. The stator is pressed against the tubular section to hold the stator in the housing.

Abstract: A driving unit includes a stator, a housing including a tubular section to accommodate the stator, a cover coupled to the housing to block an upper opening of the tubular section, and a bent wire rod defined by a wire to press the stator against the tubular section, the bent wire rod being arranged between a top surface of the stator and a rear surface of the cover while being compressingly deformed along an axis of the stator. The bent wire rod has an annular or substantially annular shape with an opened portion when seen along the axis, and includes projections projecting upward along the axis and depressions projecting downward along the axis being arranged alternately and successively. An elastic force from the bent wire rod causes the stator to receive a downward force along the axis. The stator is pressed against the tubular section to hold the stator in the housing.

Abstract: A driving unit includes a stator, a housing, and a spring pin. The housing includes a tubular section and a plate section. The tubular section accommodates the stator and includes a first groove on an inner wall thereof. The plate section has a flat plate shape orthogonal or substantially orthogonal to a central axis of the tubular section, and projects from an outer surface of the tubular section. The first groove is disposed in a peripheral direction of the tubular section within an area facing a joining portion across the central axis, wherein the joining portion is a portion connecting the tubular section to the plate section.

Abstract: A motor includes a rotating shaft, a rotor, a stator, and a housing to accommodate the rotating shaft, the rotor, and the stator. The stator includes a tube-shaped stator core located around the rotor, a coil including a winding wire wound around the stator core, and an annular or substantially annular connecting plate connected to the winding wire and a power supply line. The connecting plate is located below the rotor. At a top side of the housing, a first opening having an inner diameter equal to or larger than an outer diameter of the stator is provided. A maximum value of an outer diameter of the connecting plate is equal to or smaller than an outer diameter of the stator core.

Abstract: If a user applies a brake system while an electric vehicle that includes a battery is moving and it is confirmed that the user is not simultaneously applying the accelerator, a comparison is made between an actual deceleration and an expected deceleration corresponding to the user demand sensed by the braking system. If the actual deceleration is lower than the expected deceleration, an amount of regenerative electric current supplied to the battery is increased to better correlate the expected deceleration and the actual deceleration.

Abstract: A plurality of permanent magnets are provided at a rotor at equal angular intervals. A plurality of magneto coils are provided at a stator at unequal angular intervals. The number of the plurality of magneto coils is not a multiple of three. The plurality of magneto coils include U-phase magneto coils, V-phase magneto coils and W-phase magneto coils. The U-phase magneto coils are arranged and connected such that phases of currents passing through the U-phase magneto coils are equal. The V-phase magneto coils are arranged and connected such that phases of currents passing through the V-phase magneto coils are equal. The W-phase magneto coils are arranged and connected such that phases of currents passing through the W-phase magneto coils are equal.

Abstract: An ignition control circuit and method of operation provides a very simple but highly effective prevention of engine reverse rotation upon starting by prohibiting ignition when a reverse rotation situation arises.

Abstract: An ignition control circuit and method of operation provides a very simple but highly effective prevention of engine reverse rotation upon starting by prohibiting ignition when a reverse rotation situation arises.

Abstract: An idling state stabilizing device for an engine is disclosed that can decrease the torque that is necessary for rotation of a magneto by decreasing an output current, without setting an engine speed high, even though the engine is in the idling state, can stabilize the engine rotation, and accordingly can improve fuel economy, and further can reduce noises. A current value output from a generator when an engine is in an idling state is set as an output current value in a power generation control device.

Abstract: A system and method of operation for golf cars or the like employing electrically operated fuel injected engines for that can be operated in substantially the same manner as electrically powered cars to effect rapid restarting of the engine after stopped and with the main switch left on without excessively depleting the battery power.

Abstract: A clutch actuator comprises a motor having a motor shaft. A worm shaft is formed with a threaded section. A worm wheel meshes with the threaded section of the worm shaft. An output rod reciprocates in an axial direction to disengage and engage a clutch. A crank shaft converts rotational motion of the worm wheel to reciprocating motion of the output rod. The motor shaft and the worm shaft are coupled by a spline connection.

Abstract: A plurality of permanent magnets are provided at a rotor at equal angular intervals. A plurality of magneto coils are provided at a stator at unequal angular intervals. The number of the plurality of magneto coils is not a multiple of three. The plurality of magneto coils include U-phase magneto coils, V-phase magneto coils and W-phase magneto coils. The U-phase magneto coils are arranged and connected such that phases of currents passing through the U-phase magneto coils are equal. The V-phase magneto coils are arranged and connected such that phases of currents passing through the V-phase magneto coils are equal. The W-phase magneto coils are arranged and connected such that phases of currents passing through the W-phase magneto coils are equal.

Abstract: An idling state stabilizing device for an engine is disclosed that can decrease the torque that is necessary for rotation of a magneto by decreasing an output current, without setting an engine speed high, even though the engine is in the idling state, can stabilize the engine rotation, and accordingly can improve fuel economy, and further can reduce noises. A current value output from a generator when an engine is in an idling state is set as an output current value in a power generation control device.

Abstract: Methods and apparatus for detecting the welding state in each bonding section and the application of ultrasonic vibration and pressing force is stopped promptly when completion of welding is determined. This permits bonding to be finished, corresponding to each wire bonding section at all times, in a shortest time without need of application of unnecessary ultrasonic vibration and pressing force after completion of welding in spite of dispersion of the welding characteristic of the individual bonding pads.

Abstract: A power generation control device for determining a crank position of an engine to reduce a start-up torque following an engine stop, enhancing startability, and reducing electric power consumption of a battery at start-up is provided. The power generation control device includes a magneto generator rotated by an engine, a generated electric current controller that rectifies an alternating electric current generated by the magneto into a direct current and supplies the direct current as a generated electric current to an electric appliance and controls a power generation amount to the electric appliance. A controlling section controls a power generation amount of a rectifying section.

Abstract: A driving state display device of a straddle type vehicle has a nonvolatile memory in which operation modes are stored to be readable with a grade point provided for each operation mode, the grade point being proportional to a degree of energy-saving operation or uneconomic operation. A microcomputer calculates the rotational speed and acceleration of an engine to determine the operation mode of the vehicle. The grade point corresponding to the operation mode is read from the nonvolatile memory and accumulated until a predetermined time period has elapsed, after which it is determined whether the accumulated value falls in an energy-saving operation range or an uneconomic operation range without the use of a fuel flow meter or the like, said determined result communicated to a rider of the vehicle via a display.

Abstract: If a user applies a brake system while an electric vehicle that includes a battery is moving and it is confirmed that the user is not simultaneously applying the accelerator, a comparison is made between an actual deceleration and an expected deceleration corresponding to the user demand sensed by the braking system. If the actual deceleration is lower than the expected deceleration, an amount of regenerative electric current supplied to the battery is increased to better correlate the expected deceleration and the actual deceleration.

Abstract: When a user initiates a braking operation, an accelerator position is checked to see if the accelerator opening is about zero, a deceleration threshold value is computed based upon a brake pedal effort, the deceleration of the vehicle is obtained based upon the pedal effort, and an actual deceleration value is obtained by detecting a speed of the vehicle over time. If it is confirmed that an accelerator opening is zero, a comparison is made between the pedal-effort based deceleration threshold value and the actual deceleration are compared to determine if the brake has worn sufficiently to warrant maintenance.