Abstract: An electric actuator for use with a drive apparatus is disclosed herein. An electric motor drives a reduction gear train to position a control shaft, the reduction gear train having a worm drive that motivates a spur gear reduction. A slip clutch is disposed between the worm drive and spur gear reduction to protect the components of the reduction gear train, and to also place a limit on the torque applied to the control shaft. The housing of the electric actuator features a motor chamber to accommodate the electric motor and is sealed by a cap having an electric connector.

Abstract: A user-input device includes a user-actuatable trigger configured to pivot about a trigger axis, a rack gear, a return spring operatively intermediate the user-actuatable trigger and the rack gear, a force-feedback motor and a posture sensor configured to determine a posture of the user-actuatable trigger about the trigger axis. The return spring is configured to forward bias the user-actuatable trigger toward an extended posture. The force-feedback motor is configured to drive the rack gear based on a force-feedback signal and thereby adjust a spring force applied by the return spring to the user-actuatable trigger.

Abstract: A motor control system includes a motor, a rotational angle sensor that detects a rotational angle of a motor shaft of the motor, a torque sensor that detects shaft torsion torque between the motor shaft, and an output shaft fixed to a load member driven by the motor, and a motor controller that controls the motor. The motor controller estimates a rotational angle of the output shaft, based on the rotational angle of the motor shaft, the shaft torsion torque, and torsional rigidity obtained in advance with respect to a region between the motor shaft and the output shaft, and controls the motor, using the estimated rotational angle of the output shaft.

Abstract: An actuator includes a motor driving a worm, a gearbox, and a motor control module. The gearbox includes a gearbox housing, a worm wheel for meshing with the worm, an output mechanism fixed to the worm wheel. The gearbox housing defines worm chamber and worm wheel chamber. The motor control module includes a control module housing, a printed circuit board and a connector of the printed circuit board. The control module housing defines a control module chamber and the connector is mounted at an open end of the control module chamber. The control module housing is connected with the gearbox housing. The control module chamber and the worm wheel chamber are located on opposite sides of the worm chamber. An isolation slot is defined between the control module chamber and the worm chamber.

Abstract: A method of controlling an electric continuous variable valve timing apparatus improves starting performance of an engine by a simplified phase control for the camshaft. The method, in which intake and exhaust timing of an engine is changed in accordance with a phase of the camshaft, may include: determining whether starting off of the engine is required during driving; recognizing a target phase of the camshaft for next starting of the engine; controlling the phase of the camshaft so that the intake timing of the engine is advanced in accordance with the target phase; and ending the phase control of the camshaft in accordance with a state of the engine or the camshaft.

Abstract: A drive unit for operating a device, in particular a device in a vehicle and a method for operating a drive unit are provided. An electrical drive assembly and a break assembly are combined and arranged together in a common housing. The breaking assembly could be a mechanical breaking assembly or an electrical break assembly. The break assembly automatically locks the shaft of the electrical drive assembly and thus provides self-locking capabilities.

Abstract: An HVAC actuator coupleable to an HVAC component is disposed in or at an insulated duct. The HVAC actuator may include a housing and a taping flange. The taping flange may be spaced from the outer surface of the duct and adjacent to an outer surface of an insulated layer of the duct when the HVAC actuator is coupled to the HVAC component, and may be configured to facilitate taping of the HVAC actuator to the outer surface of the insulating layer. It may be shaped to provide a front-facing surface that is suitable for receiving tape to provide a seal between the taping flange and the outer surface of the insulating layer. In some cases, the taping flange may extend outward from the housing around the entire perimeter of the housing. The taping flange may be formed integrally with the housing, or it formed separately and coupled to the housing.

Abstract: One embodiment of a drive system may include a motor shaft coupled to a gear set in connection between an input shaft and an output shaft. The system may also have a direct current motor selectively holding the motor shaft in a fixed position for engaging the input and output shafts to one another in response to a sudden power loss from a main power supply. The system may further include an auxiliary power supply enabling the direct current motor to provide a resistive torque.

Abstract: An electric-motor furniture drive includes a power supply device, a manual control for moving movable furniture components relative to each other, and an electric motor with reversible rotation direction. A speed-reducing transmission is connected downstream of the electric motor and an additional transmission is connected downstream of the speed-reducing transmission. The power supply device has a mains connection, transforms the mains-side input voltage into at least one output-side low voltage and is configured for galvanic isolation between the mains-connected input side and the output side for operating the electric-motor furniture drive. The power supply device is designed as a switched-mode power supply and has an intermediate circuit, a control device for controlling the switched-mode power supply, and a secondary unit. The power supply device provides an output-side operating voltage at the output thereof in an operating state and provides an output-side idle voltage at the output in an idle state.

Abstract: An actuating apparatus includes a first pulley to which a rotational power of a motor is transmitted, a second pulley to which a rotational power of the first pulley is transmitted through a wire, displacement encoders for detecting respective rotational angles of the first pulley and the second pulley, a slip amount calculator for calculating a slip amount of the second pulley with respect to the wire, and a motor controller for controlling a torque output from the motor based on the slip amount. The slip amount calculator calculates the slip amount based on a change in a rotational angular velocity of the first pulley, a difference between the rotational angles of the first pulley and the second pulley, and the torque output from the motor.

Abstract: Rotary encoders for use with trolling motors are disclosed. An example rotary encoder includes a housing defining an aperture and a linear guide and an input sleeve to extend through the aperture. The input sleeve includes an exterior guide to be engaged and followed by a shuttle to enable rotary position information to be obtained from the input sleeve. The shuttle is movably coupled within the linear guide. The shuttle is biased to engage a central portion of the exterior guide if rotation of the input sleeve moves the shuttle past first or second ends of the groove to prevent the rotary encoder from being damaged by over-rotation of the input sleeve.

Abstract: A container lid is adapted to be releasably mounted on a container and includes a base, a control mechanism bore on the base, and first and second hoods pivotally mounted and bore on the base. The control mechanism and the first and second hoods are within an outer circumferential edge of the base. The first hood is engaged with and driven to pivot by the control mechanism. Moreover, the first and second hoods are structurally connected to each other in a manner that the pivoting of the first hood would cause the second hood to pivot oppositely from the first hood.

Abstract: Embodiments of the invention comprise a multi-input range box driven by multiple electric drives. Range shifting involves momentarily increasing the current through all but a given motor, to a level that will carry the entire load, comprising specified constant power. Simultaneously, torque of the given motor is reduced to zero. The given motor is then disconnected from supplying power, is synchronized to the input speed of the new speed range, and is then engaged for the new range. The above sequence is then repeated for each remaining motors, in turn. The motor current is re-equalized for all of the motors, after all the motors have been connected to provide power at the new range. Thus, there is no interruption in power flow during a range shift, and the motors are always used to deliver power, rather than to serve as a brake.

Abstract: Disclosed is an air damper actuator operated by a brushless DC (BLDC) motor. An output shaft configured for connection to an air damper is driven by the BLDC motor. A controller receives position information indicative of an angular position of the output shaft and generates a control signal to control the BLDC motor for rotation by an amount based on the position information.

Abstract: A furniture drive has a drive unit including an electric motor and a roller that is rotatable about an axis, the roller having a surface for attaching or winding up a flexible force transmission member. The radial distance of the surface changes in the rotational direction of the roller for forming at least one control cam for the force transmission member.

Abstract: An apparatus for electrically rotating a shutter's axis in order to fold and unfold the shutter includes an electrical motor; a gear that is driven by the motor; and a rotatable adapting unit or a flange to which the shutter's axis is connected. The rotatable adapting unit is connected to the gear. The apparatus may also include two switches, each switch stopping the motor when depressed, located at both ends of a rail, and wherein an element is installed in the rail capable to move along the rail and the element depresses one of the switches when arriving to any end of the rail. A circular plate with a spiral tunnel grooved on its surface is joined to the rotatable adapting unit or flange; and a pin is installed on the element and is settled in the grooved tunnel, moving the element along the rail according to the rotation of the plate.

Abstract: An electronic apparatus includes a main body, a cover, a driving device, a receiving unit, and a processing unit. The cover is pivotably connected to the main body. The driving device drives the cover to rotate relative to the main body between an open position and a closed position. The receiving unit receives a control signal from an input device. The processing unit directs the driving device to rotate the cover relative to the main body between the open position and the closed position according to the control signal.

Abstract: A method evaluates a motor assembly having a first permanent magnet motor in a transmission of an automotive drive system at an end of manufacturing line evaluation. The first motor includes a first rotor with a first plurality of magnets mounted thereon, and a first stator with a first plurality of windings in proximity to the first rotor and coupled to a first inverter. The method includes spinning the first motor with an input dynamometer machine to a predetermined speed such that the first rotor of the first motor induces a first voltage on the first inverter; measuring the first voltage on the first inverter; calculating a first voltage constant of the first motor from the first voltage; comparing the first voltage constant to accepted voltage constants; and identifying the motor as not acceptable if the first voltage constant is outside of a range of the accepted voltage constants.

Abstract: A device and method for matching the rates of speed at which an electric motor that is drivingly connected to a worm gear raises and lowers a window in an automobile power window assembly. By axially displacing the motor's armature, and/or by varying the thread and tooth profiles of the worm and the gear, the amount of torque produced by the motor and transmitted through the worm gear can be altered. In order to compensate for the effect of gravity on the motor load and on the window's speed of ascent and descent, more torque is provided when the window is being raised and less torque is provided when the window is being lowered.

Abstract: A quadruped walking robot, comprising a body part having a horizontal swing part, a horizontal swing drive part, an upper side upper leg part pivotally supported on the horizontal swing part, a lower side upper leg part disposed parallel with the lower part of the upper side upper leg part, an upper leg rotatingly driving part rotatingly driving the upper side upper leg part, a lower leg part having an upper end part to which the tip part of the upper side upper leg part and the tip part of the lower side upper leg part are pivotally connected on the upper and lower sides, and ground-contact part disposed at the lower end part of the lower leg part, and an elastic extensible part disposed at the middle part of the lower side upper leg part and elastically extending/retracting in the longitudinal direction.

Abstract: The present invention is a system for high torque operation of a movable barrier utilizing a compact hub motor device, which may be directly coupled to a movable barrier without the use of additional gearing systems. The flat geometry provides high dynamic acceleration with short electrical and mechanical time constants, and its planetary gearing system implemented within the device allows for compact, more efficient access systems. Eliminating a gear system in accordance with the present invention lowers maintenance requirements, increases efficiency, and streamlines operation of movable barriers.

Abstract: An actuating device for a movable component includes a reversible motorized drive for driving the movable component from a normal position into an open position, the movable component being uncouplable from the reversible motorized drive in its open position. The actuating device includes a driving element movably drivable by the reversible motorized drive and engages in a crank recess and extending along the path of motion of the movable component. A length of the crank recess corresponds at least to a path of motion of the driving element between its normal position and its open position or partially open position. After adjustably driving the movable component into its open position, the driving element may be returned by the reversible motorized drive into the normal position.

Abstract: A DC motor mechanical shock protection system monitors the motor current to determine the torque the motor is applying to the gearbox, and takes mitigating action if the torque approaches a level that can damage the driven device and/or the drive system. This protects the system from mechanical shock without limiting the available torque during normal operation. The change in motor current is monitored to detect the inertial torque before the elasticity between the motor and the driven device is fully compressed and the motor mounting or gearbox begin to be damaged.

Abstract: The rolling friction force of ball screw is much small than the sliding friction force of it. Using ball screw as the transmission mechanism for elevator, so as to find the differences of friction forces between rolling motion and sliding motion. Besides, the current of motor has the obvious relationship to the driving force of motor, we use current of motor for ball screw type elevator to monitor the system. And, before the serious damage occurring, the monitor system can find the different form the current of motor, and make the operation for elevator safer.

Abstract: The sun roof drive device opens and closes a vehicle sun roof by a DC brushless motor, which is driven by rectangular waves when high torque is required at a low rotational speed and which is driven by sinusoidal waves or pseudo-sinusoidal waves when low noise is required.

Abstract: To provide a four-wheel driving system capable of obtaining a rotating speed very accurately and improving motor controllability. Solution: In a four-wheel drive vehicle, front wheels 14L and 14R are driven by an engine 1, and rear wheels 15L and 15R are driven by an electric motor 5. A high-power alternator 2 is driven by the engine 1, and electric power generated from the alternator 2 drives the motor 5. In addition to controlling the power generation of the high-power alternator 2 and the driving of the motor 5, a 4WD CU 100 estimates an induced voltage E of the motor 5 from a voltage MHV of the motor and from an output current Ia of the high-power alternator, and estimates a rotating speed Nm of the motor from estimation results on the induced voltage E.

Abstract: Torsional oscillation of a shaft in a swing drive system of an excavator is minimized by monitoring torsional strain of the shaft. An electric motor provides torque to the shaft in response to a drive signal provided by a converter. A compensation circuit produces a compensation signal as a function of torsional strain of the shaft. A field excitation circuit or regulator powers a converter as a function of the compensation signal such that a counter torque is provided to the shaft and torsional oscillation of the shaft is reduced.

Abstract: An actuator system including a shaft, elements arranged to power the shaft and at least one actuated member actuated by the elements arranged to power the shaft. The elements arranged to power the shaft include a plurality of transverse flux motors.

Abstract: An electric cutting tool useful for bevel cutting, the tool having a base adapted to contact a workpiece, a saw unit supported on the base, and a handle mounted on a guard of the saw unit. The saw unit includes a guard, a saw blade disposed within the guard, and a driving motor portion coupled to the saw blade via a transmission mechanism. The driving motor portion includes at least two driving motors, and the output shafts of which are coupled to an input portion of the transmission mechanism. An output portion of the transmission mechanism is coupled to a shaft of the saw blade.

Abstract: The present invention provides a cylinder-type linear motor. The motor includes a fixed part including a coil assembly having a plurality of ring-shaped coils arranged in the axial direction to form a cylindrical space, and a yoke member made of a magnetic material, which is provided on the outer periphery side of the coil assembly and a moving part including a linear motion shaft provided on the axis line of the fixed part so as to be capable of reciprocating in the axial direction, and a permanent magnet assembly having one or more permanent magnets magnetized in the axial direction, which is provided on the linear motion shaft. The motor is characterized by when the axial length of the ring-shaped coil is taken as C, the axial length of the permanent magnet assembly as M, and the outside diameter thereof as D, a stroke S is equal to or smaller than (n×C?M), the axial length Y of the yoke member is set equal to or larger than (M+S+0.

Abstract: The drive control of the invention changes an engagement status of relevant clutch and brake corresponding to a target gear speed n* of a transmission to half engagement while controlling a motor to output a torque corresponding to a torque demand Td* and the target gear speed n* (steps S190 and S210), when satisfaction of conditions that the absolute value of a rotation speed Nm of the motor is not greater than a preset reference value Nref and that the torque demand Td* is not lower than a preset reference torque Tref has continued for a preset reference time (steps S140 to S160).

Abstract: The present invention provides a way to measure the position of an instrument that is mounted on an instrument shaft within a clutched mounting system, the instrument shaft being driven through a reduction gearbox by a motor shaft. The position of the instrument is measured as a function of the position of the motor shaft and the position of the instrument shaft, the measurement of the position of the motor shaft providing greater precision than the position of the instrument shaft. Because the mounting system is clutched, it is necessary to check at intervals whether the measurement of the motor shaft position no longer accurately represents the position of the instrument, in which case the measurement of the motor shaft position is resynchronized to the measurement of the instrument shaft.

Abstract: A wall control unit for a movable barrier operator sends baseband signals over a wire connection to a head unit of a movable barrier operator to command the movable barrier to perform barrier operator functions. The wall control unit has a wall control unit port for connection to the wire connection. A first switch sends a barrier command signal to the head unit commanding the head unit to open or close a movable barrier. A second switch commands the head unit to provide energization to a light source. An infrared detector causes a command signal to be sent to the head unit to control the illumination state of the light source.

Abstract: A feedback apparatus for a vehicle air-conditioning actuator is provided. The feedback apparatus includes a cover plate including a thin plate resistor formed on the bottom thereof, a small case combined with the cover plate, including an assembly protruding portion formed in one side thereof, a plate-shaped rotation slider interposed between the cover plate and the small case, including a third axial hole and an opening whose size is about a quarter of the total size, a wiper whose contact front end is exposed in the opening of the rotation slider and rear end is fixed to the bottom of the rotation slider to rotatably contact a thin plate resistor formed on the bottom of the cover plate, a terminal assembly having connection pins for receiving external signals in which connection pins combined with the cover plate is formed. Since a contact between the wiper and the thin plate resistor is accomplished in a sealed case, there is little possibility of altering an initial set position due to an external shock.

Abstract: The invention relates to an actuating apparatus that can be used, for example, as an actuating apparatus for a motor vehicle transmission, the select function and the shift function being guaranteed by this actuating apparatus and it being possible to effect this using exactly one electric motor, and it being possible, starting from an original gear, to alternatively engage at least three different target gears without it being necessary in between to shift into an intermediate gear.

Abstract: The invention concerns a method for stabilizing the motion of an articulated chain of a chain block, especially to prevent the formation of resonance oscillation of the chain, in which an articulated chain is led across a polygonal chain wheel with non-uniform pitch, which is driven by an electric motor. In order to create a method to prevent the formation of a resonance oscillation of the articulated chain, it is proposed that a periodic and/or stochastic and dampening actuating variable is superimposed on the velocity of the chain wheel (4) and the dampening actuating variable produces a change in the chain velocity so as to prevent a formation of a resonance oscillation. The chain drive with reduced polygon effect is characterized in that an electronic damper (8) is hooked up in front of the electric motor (2), which produces a control of the electric motor (2) such that a formation of a resonance oscillation of the articulated chain (5) is prevented.

Abstract: An electro-mechanical actuator including a plurality of motors for driving an output shaft. The actuator may be incorporated into a window lift mechanism, such as a mechanism including a dual rack and pinion assembly. According to another aspect of the invention there is provided a variety of anti-back-drive mechanisms, e.g. clutches. A clutch according to one embodiment includes locking pawls that resist back-drive. In another embodiment, locking cams rotate relative to a carrier to resist back-drive. An actuator consistent with the invention may incorporate an impact mechanism including a flexible carrier. The carrier flexes to prevent impact forces at an output gear train from coupling to an input gear train.

Abstract: A robot apparatus is provided which includes body portions such as a head block (4), leg blocks (3A to 3D), an actuator (25) to actuate the body portions and a CPU (10) to supply a control signal to the actuator (25). In this apparatus, information about an external force applied to the apparatus, such as the position, magnitude, direction, etc. of the external force, is computed on the basis of changes of the control signal supplied from the CPU (10) to drive the actuator (25) and a signal supplied as a response to the CPU (10) when the actuator (25) is driven. The external force information is supplied to the CPU (10) and used as information for selection of a behavior and emotion of the robot apparatus and the next behavior of the apparatus.

Abstract: A method for setting an electric motor, which includes, during a non-powering sequence of at least one of the motor phases, measuring on a predetermined time window, the induced voltage (Ti) in the non-powered phase and in comparing its mean value to a threshold value (Ts) to stop powering of the motor on the current sequence if the measured mean value is less than the threshold value.

Abstract: A vending machine includes a gearmotor with feedback control allowing for the determination and control of the axial rotational position of the gearmotor's output shaft. The gearmotor has a DC motor, gear train, at least one rotation sensing mechanism and control circuitry. The rotation sensing mechanism is in operative connection with the output shaft of the gearmotor and/or the armature shaft of the motor such that the feedback provided by the sensor allows the control circuitry to determine the position of at least one of the shafts and, based on that determination, control the output of the motor to either stop rotation or produce additional rotation as necessary to properly dispense product of varying sizes based on pre-programmed data regarding the desired rotation for various products. A method for controlling the dispensing of products in a vending machine is also disclosed.

Abstract: In the actuator device, there are provided the control means to control the rotation of the rotor axis via the driving means in the housing, the rotor axis rotation displacement detection means for detecting the rotation displacement of the rotor axis in the housing, the rotor axis supported rotation-free, the permanent magnet integrated concentrically with said rotor axis, the magnetic field generation means to generate the magnetic field that makes the permanent magnet generate the rotating power, and a temperature sensor for detecting the temperature of the permanent magnet.

Abstract: A drive mechanism for a scannerincludes a delivery device, a first rotational speed motor and a second rotational speed motor. The delivery device consists of an actuating wheel, a passive wheel and a conveyor belt. The conveyor belt is carried by the actuating wheel and the passive wheel, and the axes of the passive wheels are attached to two ends of the inner side diameter of the actuating wheel. The output shaft of the first rotational speed motor is provided with an actuating skew gear that engages two passive skew gears. The output shaft of the second rotational speed motor is also provided with an actuating skew gear that engages two passive skew gears. The drive mechanism uses the two motors to drive the two passive skew gears so as to better control the rotational speed and to scan the document image.

Abstract: The invention relates to a windshield wiper drive unit having a drive motor (1) and a gear (2, 3) for transmitting a rotary motion of the motor (1) to the shaft of a windshield wiper, having at least one sensor (6) for detecting a position of the shaft, and having a control circuit (4), which receives a detection signal of the sensor (6) and has one or more inputs (7) for receiving operating signals that define a desired operating state of the windshield wiper and is arranged to control a sequence of motions of the shaft as a function of the operating signal received, in which the control circuit (4) is combined with the drive motor (1) and the at least one sensor to make an integral component unit.

Abstract: A vending machine includes a gearmotor with feedback control allowing for the determination and control of the axial rotational position of the gearmotor's output shaft. The gearmotor has a DC motor, gear train, at least one rotation sensing mechanism and control circuitry. The rotation sensing mechanism is in operative connection with the output shaft of the gearmotor and/or the armature shaft of the motor such that the feedback provided by the sensor allows the control circuitry to determine the position of at least one of the shafts and, based on that determination, control the output of the motor to either stop rotation or produce additional rotation as necessary to properly dispense product of varying sizes based on pre-programmed data regarding the desired rotation for various products. A method for controlling the dispensing of products in a vending machine is also disclosed.

Abstract: A drive device (10, 100) with an actuating drive (40, 130) for driving a movable element (11, 110), in which drive device a lever (62, 144) coupled to the movable element (11, 110) is capable of being driven by the actuating drive (40, 130) via a gear (48, 132), the lever (62, 144) being capable of being acted upon by a firmly supported return spring (34, 164) so as to be capable of being pivoted back into a basic position (82, 161), and, in the basic position (82, 161), a first lever arm (64, 146) of the lever (62, 144) being acted upon by a stop (84, 160), is to have a particularly low space requirement and at the same time absorb momentum energy of the gear (48, 132) in a particularly reliable way in the event of a failure of the actuating drive (40, 130).

Abstract: A wiper drive apparatus includes a drive gear rotated by a motor, a lead frame carried on a cover attachable to the motor or motor gear and including a circumferentially of discrete conductive traces, and a park switch bridge rotatably mounted on the cover and carrying a circumferentially of spaced contacts, each slidable over conductive traces to open and close a circuit to the drive motor as the park switch bridge is engaged by and rotated by the drive gear. Each contact is carried on a beam projecting from a circumferentially of radially extending arms forming the park switch bridge. A drive pin carried on the drive gear engages successive arms to rotate the park switch bridge 90° for each revolution of the drive gear to bring a different contact into electrical connection with the conductive traces without requiring additional tooling for the lead frame or the park switch bridge itself.

Abstract: The linking component between two parts that contributes to maintaining them at a distance that is determined but adjustable comprises a jack with a screw and a nut. The movement of the jack is controlled by a motor. Universal joints are disposed between the two parts and the screw and the nut respectively, and the axes of rotation of one of the universal joints passes through the center of the nut. If play present in the assembly causes the screw to become skewed relative to the nut, the nut tilts freely until its axis is in line with that of the screw, thereby eliminating the flexion stresses caused by the cantilever on the screw. The component may be used to regulate the angle between two hinged sections of a robot arm.

Abstract: The present invention relates to a drive unit of a foot massage machine which includes a housing in which a motor is installed for bringing an eccentric block into motion to drive a slider assembly at two shaft rods for a lateral shift leftwards and rightwards. The present invention is characterized in that the slider assembly is provided with a longitudinal bar at center thereof, and a crank is inserted on the outer rim of the longitudinal bar. The crank is T-shaped and includes a circular sleeve externally mounted on the longitudinal bar and a cylindrical slider serving as shaft and fixed at one side of the circular sleeve. The cylindrical slider is inserted into a mounting hole of the eccentric block, showing a sliding joint between a shaft and the mounting hole. When the eccentric block rotates with the power output shaft, the crank acts as a driven part and the circular sleeve moves upward and downward in the longitudinal bar.

Abstract: An electromotive linear drive mechanism, in particular a drive mechanism for a body of furniture, includes an electric motor having an output journal and a rotating spindle which has mounted thereon a nut, secured against rotation. The nut is operatively connected to the body of furniture, for movement in longitudinal direction of the spindle when the spindle rotates. A worm drive includes a worm which rotates about an axis of rotation and is in engagement with the output journal of the electric motor. Connecting the worm drive to the spindle are at least two worm gears which are in engagement with the worm and arranged in symmetric disposition with respect to the rotation axis of the worm. Each worm gear which is connected to a cylindrical gear is in operative engagement with the respective cylindrical gear meshing with the other worm gear.

Abstract: The invention provides a control apparatus for an engine driving motor having a function of driving a crankshaft of an engine and another function of generating electric power from power from the crankshaft by which an engine can be started up efficiently in a short time.