2987 results about "Electromagnetic clutch" patented technology

The present invention is for arousing a sense of rivalry to the user so that the user can exhibit an active will to exercise. The present invention relates to an exercise assistance apparatus which has a cycling machine 1 provided with pedals 11b and a rotation sensor 11c for detecting the movement of the pedals 11b, comprising a monitor 14 for displaying images, means for storing image data to express a traveling path and opponent characters, exercise equipment control means for performing variable control for the load status of the electromagnetic clutch 12b of the machine 1, means for sequentially updating and controlling the traveling position of the opponent characters on the traveling path, means for calculating a virtual self position of the user on the traveling path from the detection content of the rotation sensor 11c and the load status controlled by the exercise equipment control means, and image display means for displaying the traveling path and opponent characters on the monitor 14, and displaying the degree of difficulty to pass an opponent character.

The electromagnetic actuator includes an electromagnetic coil configured to provide actuation force in accordance with a solenoid current to be supplied, to a clutch and configured to actuate the clutch to control relative rotation between first and second members. The electromagnetic actuator includes a detector configured to detect the clutch actuated to produce a detection signal. The electromagnetic actuator includes a controller configured to respond to the detection signal from the detector to control the solenoid current.

An electromagnetic clutch (10) for an air conditioning compressor includes a generally cylindrical pulley (11) rotatably mounted on a compressor housing (16) and having an annular friction surface (21b), a driven member (12) mounted on a compressor shaft (13) and having an annular friction surface (21a) positioned radially adjacent the first friction surface to form an annular space (21c) therebetween. A quantity of flowable magnetic material (27) is provided in the annular space (21c) and a magnetic coil (34) is fixed on the housing adjacent thereto. A control (40,46,46') connected to the magnetic coil (34) supplies electrical power from a power supply (47) to energize the magnetic coil and create magnetic flux in the annular space (21c) polarizing the magnetic material and frictionally coupling the first and second friction surfaces (21a,21b) to cause the pulley (11) to rotate the driven member (12). The control (40,46,46') can pulse width modulate or ramp the supplied power for "soft" starting and/or stopping of the compressor.

An automatic door opener (10) for opening or closing a door (28) includes a motor (14) driving a drive shaft (50) and an opener arm (18) connected to the door (28) and being responsive to rotation of the drive shaft (50) for moving the door (28) to an open or closed position. A clutch (46) operable to disengage the drive shaft (50) from the opener arm (18) is provided in the event of the door (28) engaging an obstacle, electric power being unavailable, or the door being fully open or fully closed. The door opener (10) may also include a brake (48) for selectively preventing movement of the door (28). Various embodiments of the invention are provided, including an electromagnetic clutch (80) and an electromagnetic brake (114).

The invention provides a vehicle brake energy regeneration control method and system; the system comprises a hydraulic energy accumulator, a variable pump/motor, an electromagnetic clutch, a brake pedal switch, an acceleration pedal switch, a gear switch, a road slope sensor, a speed sensor, a pressure sensor of the energy accumulator, a hydraulic control unit and an electric control unit; the system automatically identifies the acceleration or brake intention of a driver, automatically detects the running state of the vehicle and the road slope situation, calculates the control current I1 of the proportional electric magnet of the variable pump/motor on different downgrade road slopes or horizontal roads and at different speeds by adopting the formula (I), calculates the control current I2 of the proportional electric magnet of the variable pump/motor on different upgrade road slopes or horizontal roads and at different speeds by adopting the formula (II) and carries out brake energy releasing circulation control, so as to control the running stability of the vehicle and improve the recovery rate as well as the regeneration rate of the brake energy.

The invention relates to a steering-mode adjustable electric automobile steering system and a control method. The steering-mode adjustable electric automobile steering system comprises two motors, a mechanical steering module, an electric assisting steering module and a steering-by-wire module, wherein the two motors are arranged on a steering column and a steering pinion respectively, the mechanical steering module, the electric assisting steering module and the steering-by-wire module are formed by three electromagnetic clutches and the like and are used for mechanical steering, electric assisting steering and steering-by-wire. The control method mainly includes the first step of carrying out system initialization, the second step of allowing an ECU to start the corresponding steering mode and carrying out control according to the steering mode selected by a driver, the third step of controlling the steering modes, and the fourth step of carrying out fault diagnosis and fault-tolerant control on the steering system. The steering-mode adjustable electric automobile steering system and the control method have the advantages that the same automobile has high control flexibility on the precondition of being simple in structure, and consequently switching of driving modes can be achieved; when one motor breaks down, an original steering mode can be switched to a steering column assisting type electric assisting steering mode or a pinion assisting type electric assisting steering mode or a mechanical steering mode, and consequently the operation stability, reliability and the fault-tolerance capacity of the automobile are improved.

An opening and closing control system for an opening-closing member comprises an opening and closing mechanism for opening and closing the opening-closing member, an actuator for operating the opening and closing mechanism, an electromagnetic clutch for controlling a torque transmission by connecting and disconnecting the actuator and the mechanism, an opening and closing angle detecting means for detecting an opening and a closing angle of the opening-closing member relative to the vehicle, and a control means for controlling an electric power supplied to the electromagnetic clutch based on a detected result from the opening and closing angle detecting means and controlling an electric power supplied to the actuator, in which a supporting force required for supporting the opening-closing member is increased, and the control means for decreasing the electric power supplied to the electromagnetic clutch in accordance the opening-closing operation from an intermediate position to an opened position or a closed position.

The invention relates to a lift-type folding door window in mutually non-interfered electronic and manual modes, comprising a folding door panel, a door lock, a door lock operating mechanism, an electronic mechanism and a control circuit which are mounted on a doorframe. The lift-type folding door window in mutually non-interfered electronic and manual modes is characterized in that the electronic mechanism mainly comprises a motor, an electromagnetic clutch, a weighting block, a rotating wheel and an open ring cord, the rotating wheel is mounted in a corner region at the upper part of the doorframe, the open ring cord winds around the rotating wheel to form anti-sliding transmission match, one end of the open ring cord is connected with a driving point of the folding door panel, the other end of the open ring cord is connected with the weighting block, the motor is in transmission connection with the rotating wheel through the electromagnetic clutch, and the door lock operating mechanism is internally provided with a manual lock stem and a traction electromagnet. When the door is opened, a traction electromagnet coil is energized to open the door lock, then, the coil of the electromagnetic clutch is energized to combine the clutch, and finally the motor rotates positively to open the door window. When the door is closed, the clutch is combined, and then, the motor rotates reversely to close the door window. In the invention, the lift-type folding door window varying with the working state of a switch or a remote controller is automatically switched between the electronic and manual modes without mutual interference so as to bring extreme convenience to users.

A multi-group transmission of a motor vehicle which includes at least two transmission groups arranged in a drivetrain and a way for supporting traction force during gearshifts such that traction-force gearshifts are maintained with improved shifting comfort at comparatively low cost, little design effort and compact installation space demands. At least one electromagnetic clutch is a change-under-load unit by which, bypassing the force flow of at least one main group made as a gear-change transmission, an active connection can be formed between a driveshaft and a main transmission shaft or a transmission output shaft. During a gearshift operation, an active connection is temporarily made between a driveshaft and a main transmission shaft or a transmission output shaft by way of at least one electromagnetic clutch designed as a change-under-load unit.

A power transmission control device for vehicle controls switching between a speed increasing mode and a constant speed mode on the basis of electrical load, battery or the like, and shock due to switching is less. The power transmission control device includes: an electric rotating machine 5; a crank pulley 15; a planetary gear mechanism consisting of a sun gear 18, a planetary gear 19 and an internal gear 20; and controller 70 for controlling an electromagnetic clutch 21. The electromagnetic clutch 21 is ON to operate the planetary gear mechanism as a speed increasing mechanism and drive the electric rotating machine 5 at an increasing speed, when engine speed of the internal combustion engine 1 is not higher than a predetermined value, remaining capacity of the battery 9 is not more than a predetermined level or electrical load is in a high-load state.

The invention belongs to the field of household appliances and particularly relates to a door opening motor assembly, an automatic door opening system, a work method and a refrigerator. The door opening motor assembly comprises a door opening motor, a front stage gear set, an output shaft, a rear stage gear set and an electromagnetic clutch, wherein the front stage gear set is located at the door opening motor end; the output shaft is used for controlling a door to rotate; and the rear stage gear set is located at the output shaft end. The electromagnetic clutch is used for enabling the front stage gear set to be in transmission fit with the rear stage gear set after being electrified, i.e., after the electromagnetic clutch is electrified, the front stage gear set and the rear stage gear set are engaged with a clutch gear in the electromagnetic clutch, so that the torque of the door opening motor is transmitted to the output shaft. The door opening motor assembly pushes the clutch gear to the transmission position of the front stage gear set and the rear stage gear set after being electrified through the electromagnetic clutch, and the door opening motor transmits power to the output shaft so as to achieve the purpose of automatic door opening and closing; if the power is cut off, the electromagnetic clutch enables the clutch gear to be disconnected from the transmission position; and therefore, the purpose of manual door opening and closing is achieved.

The invention discloses an electromagnetic clutch type drive device which comprises a mounting frame, a main shaft, an electric drive device, a manual drive device and a clutch device, wherein the main shaft is fixed to the mounting frame; the electric drive device and the manual drive device are used for driving the main shaft; the clutch device is used for converting manual drive and electric drive; the electric drive device comprises a motor with an output wheel and a drive gear which is rotatably arranged on the main shaft; the output wheel can drive the drive gear to rotate; the clutch device comprise an electromagnetic element which is fixed to the main shaft, a moving iron core which is fixed to the drive gear and a reset mechanism which is used for resetting the moving iron core; and the electromagnetic element can adsorb the moving iron core after being electrified so that the drive gear can drive the electromagnetic element and the main shaft to rotate. The invention has the advantage of realization of automatic conversion of manual and electric operation, thereby realizing remote intelligent control.

The present invention provides an automatic test method and apparatus for vehicle air conditioner compressor electromagnetic clutch dynamic torsional moment, comprising a mainly supporting component (2), a torque revolution speed transducer (3), an electric eddy current dynamometer (4) and an electrical control system, wherein the electromagnetic clutch (1) is installed on the left end of the supporting component to form a cantilever structure, and is driven to rotate through a belt pulley of the electromagnetic clutch driven by a frequency conversion motor; the right end of the supporting component is linked with the torque revolution speed transducer and the electric eddy current dynamometer separately by a coupling, the torque revolution speed transducer and the electric eddy current dynamometer are both installed on each seat to ensure the axiality to be consistent with the supporting component main shaft. The automatic test method and apparatus can simulate air conditioner electromagnetic clutch actual use condition factually, test dynamic parameter variation regularity with the existing of revolution speed spectrum and torque loading spectrum, observe and research dynamic procedure in full, and provide science foundation for evaluating performance, lifetime and reliability thereof.

An automatic blocking mechanism of door leaf is featured as connecting rubber door leaf swing around shaft to electromagnetic jaw clutch, setting DC speed reducing motor and angle control device on installation base. The blocking mechanism can be switched no automatically to avoid the door leaf to be operated by outside force when electric power is off.

This invention relates to a load capacitance and voltage regulation switch characterizing in the following structure: a voltage-regulation static contactor is mounted on an insulated drum of a load capacitance-regulation part, a voltage -regulating bracket is set in the drum, a voltage-regulation dynamic contactor and a transition resistor are set on the bracket to integrate the load capacitance and voltage regulation, a set of operation unit is used between the quick unit of the capacitance and the voltage regulation parts by an electromagnetic clutch and an electric control box is set for adjusting capacitance and voltage automatically according to the change of loading current and voltage of a transformer.

The invention provides a series-parallel combined type hybrid power assembly (1), which comprises an engine (2), a first air compressor (21), a first power-assisted steering oil pump (22), a first motor (4), a first motor controller (8), a main clutch (20), a second motor (6), a second motor controller (10), a second air compressor (61), a second power-assisted steering oil pump (62), an air condition compressor (63), a first electromagnetic clutch (24), a second electromagnetic clutch (26), a third electromagnetic clutch (27), a fourth electromagnetic clutch (28), a first belt wheel train (23), a second belt wheel train (25) and an electric power storage device (12). The engine (2) comprises a starter (201), the first electromagnetic clutch (24) controls working conditions of the second motor (6), the second electromagnetic clutch (26) controls working conditions of the second air compressor (61), the third electromagnetic clutch (27) controls working conditions of the second power-assisted steering oil pump (62), and the fourth electromagnetic clutch (28) controls working conditions of the air condition compressor (63).