Abstract: A work machine includes: hydraulic actuators 21, 22, 23, 31, and 32; a capacitor 61 for storing electric power when a generator motor 44 operates as a generator and for supplying electric power when the generator motor 44 operates as a motor; and a swing electric motor 10, the hydraulic actuators 21, 22, 23, 31, and 32 and the swing electric motor 10 are operated by operation of operating levers 50, 70. The work machine includes an idling stop control unit 110 for stopping the idling of an engine 40 and retains the swing electric motor 10 in an operation prohibited state at least on the condition that stored voltage of the capacitor 61 is predetermined voltage or higher when the neutral states of the operating levers 50, 70 continue for a predetermined stop time during operation of the engine 40.

Abstract: An electric power tool is provided that includes a motor as a driving source, a first operation switch, a first semiconductor switch, and a second semiconductor switch. The first operation switch is operated by a user to be turned ON/OFF. The first semiconductor switch, provided on a current path from the power source to the motor, includes at least one semiconductor switching device. When the first operation switch is OFF, the first semiconductor switch is turned OFF to interrupt the current path. When the first operation switch is ON, the first semiconductor switch is turned ON to close the current path. The second semiconductor switch is provided on the current path in series with the first semiconductor switch and includes at least one semiconductor switching device. The second semiconductor switch closes/interrupts the current path by being turned ON/OFF in accordance with an input control signal.

Abstract: A controlling device includes a range switch mechanism, range switch operating means, operation frequency monitoring means, and heat generation limit controlling means. The range switch mechanism is adapted to change a shift range using a motor. Through the range switch operating means, an occupant inputs a required shift range. The motor is controlled in accordance with the required shift range such that the shift range is changed into the required shift range. The operation frequency monitoring means monitors an operation frequency of the range switch operating means. The heat generation limit controlling means switches a control of the motor to a heat generation limit control when the operation frequency of the range switch operating means exceeds a predetermined frequency.

Abstract: A control system for a slide-out room of a recreational vehicle includes a number of room slides which move the slide-out room between retracted and extended positions. If multiple room slides are used, a controller synchronizes the movement of the room slides to prevent damage to the components of the system. The retracted and extended positions of the slide-out room can be reset by the end user. The controller is also capable of detecting faults and communicating faults to the user via LEDs on a control panel. The controller automatically stops the motion of the slide-out room if a fault is detected. The control system includes a lock which is automatically disengaged before motion of the slide-out room. The lock is also automatically engaged when the slide-out room moves to the retracted position.

Abstract: Methods to detect when a human body contacts a predetermined portion of a machine are disclosed. The methods distinguish contact with a person from contact with other materials. The methods are particularly applicable in woodworking equipment such as table saws to distinguish contact between a person and the blade of the saw from contact between the blade and wet or green wood. The methods and woodworking equipment may include predictive blade stop algorithms that prevent unnecessary activations of a safety brake during coast down of a blade and continued protection in the event a main power switch is turned off.

Abstract: An electronic line shaft comprising a motor drive comprising a velocity noise filter coupled to receive a feedback position signal and operable to filter the feedback position signal to generate a feedback velocity signal where the noise filter has at least one controllable filter parameter that affects filter operating characteristics and a processing unit operable to execute a wizard for configuring the motor drive, the wizard being operable to receive mechanical characteristic data associated with the motor drive that is provided as input by a wizard user via a user interface and to determine a noise parameter based on the mechanical characteristic data, wherein the at least one controllable filter parameter is adjusted as a function of the noise parameter.

Abstract: A powered lift gate for an automotive vehicle includes a lift gate door hinged to a vehicle body. A motor system which opens and closes the door is operated by a controller coupled to a primary obstacle detection system which senses operation of the motor itself, and by a secondary detection system which directly senses an object interposed between a margin of the door and the door opening panel. A pinch protection member interposed between a marginal zone of the door and the door opening panel includes a resilient element having sufficient strength to support an object positioned between the door and the door opening panel such that the primary obstacle detection system will be triggered when the door and motor develop a predetermined compressive force upon the object. The predetermined compressive force is selected to allow normal operation of the lift gate, without subjecting an obstructing object to excessive crushing force.

Abstract: The controller determines the presence or absence of operation of the trigger switch according to an ON/OFF state of the main contact of the trigger switch and designating the rotation speed of the motor based on a signal outputted from the speed contact. The controller stops the rotation of the motor, after the trigger switch is activated and the main contact is turned ON and the motor is driven according to a signal outputted from the speed contact, when an OFF state of the main contact is detected, only in the case where a signal value outputted from the speed contact is a predetermined value or less.

Abstract: This invention generally relates to automated shade systems. An automated shade system comprises one or more motorized window coverings, sensors, and controllers that use one or more algorithms to control operation of the automated shade control system. These algorithms may include information such as: 3-D models of a building and surrounding structures; shadow information; lighting and radiation information; ASHRAE clear sky algorithms; log information related to manual overrides; occupant preference information; motion information; real-time sky conditions; solar radiation on a building; a total foot-candle load on a structure; brightness overrides; actual and/or calculated BTU load; time-of-year information; and microclimate analysis.

Abstract: A focusing drive apparatus includes a determination device that is configured to determine whether a present focusing condition is an AF-able condition or an AF-unable condition. In the AF-able condition, the focusing lens group can be moved to the in-focus position by the AF device. In the AF-unable condition, the focusing lens group cannot be moved to the in-focus position by the AF device. The apparatus also includes a change control device that is configured to set a motive power transmission mechanism in the engaged state to enable the focusing lens group to be moved to the in-focus position by the AF device when the determination device determines that the present focusing condition is the AF-able condition, and to set the motive power transmission mechanism in the disengaged state when the determination device determines that the present focusing condition is the AF-unable condition.

Abstract: An actuation assembly (INST) of a screen (SCR) for closure, solar protection or privacy, comprising, on the one hand, a motorized actuator (ACT) furnished with wireless control command receiving means (RCU) and, on the other hand, a standalone power supply assembly (PWU) furnished with at least one rechargeable accumulator (BAT) and with a power supply connector (PR), designed to be connected to the motorized actuator (ACT) via an electric connection line (LIN) for the latter to be supplied with power by the energy of the accumulator (BAT), wherein the power supply assembly (PWU) comprises a man-machine interface (MMI) whose activation allows the transmission of information to the actuator, this information relating to the control of the wireless control command receiving means (RCU) of the actuator (ACT).

Abstract: A drive control assembly for a motor including a variable frequency drive module for providing variable speed control for the motor, a bypass module for providing bypass control for the motor, and a switch for switching control for the motor between the variable frequency drive module and the bypass module. The bypass module can provide control for the motor even when the variable frequency drive module is removed from the drive control assembly.

Abstract: The mobile element is a vehicle window pane, panel, movable seat or similar, conveniently guided, and driven by a DC electric motor with a permanent magnet, and the method comprises a step of detecting an entrapment or collision situation of the mobile element by means of a first fuzzy logic algorithm, which inputs are the mobile element's position and the increments that may occur in the intensity of the current demanded by said motor, which is evaluated from the relative increase of the current intensity at one turn of the motor and after one next, subsequent turn of the motor. A second fuzzy logic algorithm is used to control the mobile element's velocity, in close loop.

Abstract: A controlling device includes a range switch mechanism, range switch operating means, operation frequency monitoring means, and heat generation limit controlling means. The range switch mechanism is adapted to change a shift range using a motor. Through the range switch operating means, an occupant inputs a required shift range. The motor is controlled in accordance with the required shift range such that the shift range is changed into the required shift range. The operation frequency monitoring means monitors an operation frequency of the range switch operating means. The heat generation limit controlling means switches a control of the motor to a heat generation limit control when the operation frequency of the range switch operating means exceeds a predetermined frequency.

Abstract: A half-open position holding apparatus for a vehicle opening and closing member includes an opening and closing member supported in a vehicle body to be openable and closable and has an opening and closing member driving unit that has a motor and a electromagnetic clutch that can put a power transmission path connecting the motor and the opening and closing member in a connected state and in a disconnected state, for driving the opening and closing member in opening and closing directions thereof, and an in-vehicle battery serving as a power source for the electromagnetic clutch.

Abstract: An opening-and-closing control device is disclosed, in which speed of an opening-and-closing body can be increased even while automatic operation is performed. The device includes an operation knob that performs opening-and-closing control of an opening-and-closing body according to an instruction from an operation switch which is switchable to each of positions of “automatic closing”, “manual closing”, “neutral”, “manual opening” and “automatic opening”, wherein first the operation knob is operated to start the automatic opening operation, and then when the operation knob is held in the position of the “automatic opening”, an opening speed of the opening-and-closing body is increased according to a time period for which the operation knob is held in the position of the “automatic opening”, therefore the opening-and-closing body can be opened at high speed even while the automatic opening operation is performed.

Abstract: A window covering system includes a window covering, a motor having a housing and a power supply inlet, for opening or closing the window coverings, and a modular motor converter. The modular motor converter includes a low voltage interface for functional attachment to the motor, a housing for the low voltage interface, a standard motor power supply connector incorporated into the housing and fitting into the motor power supply inlet, and at least one attachment arm, preferably two, that clips onto the motor housing and permits quick clip-on and removal from the motor. In one form, the modular motor converter further includes a remote radio frequency control for functional attachment to and control of the motor. The modular motor converter also includes means for pre-setting silent stop of the motor end positions. The housing permits external access to motor dip switches.

Abstract: A control for an electric motor in a vehicle. The control ascertains whether an obstacle is interfering with rotation of the motor. The control establishes a baseline speed, representing normal free running speed of the motor. This baseline speed will be different, in different operating environments. Then the control determines whether measured motor speed drops below the baseline speed by a predetermined amount. If so, then the motor is shut down, or reversed.

Abstract: A method for recognizing an obstructed situation of a traveling element. The method includes evaluating a variable containing information about the motor's rotational speed as the motor is driving the element. Starting from a current detection time point, the sequence of values of the variable determined at immediately preceding detection time points are observed. Change in behavior of the sequence of observed values of the variable with respect to one another over time are then compared with a value range of the variable that is indicative of the element being obstructed. A sufficient match between the value range of the variable and the sequence of observed values of the variable exists if at least three successive observed values of the variable fall within the variable value range. The element is determined to be obstructed upon the existence of a sufficient match. The variable includes the duration of motor time periods.

Abstract: A remotely configurable motor controller system comprises a motor controller and a remote configuration device. The motor controller includes solid state switches for connection between an AC line and motor terminals for controlling application of AC power to the motor and a control circuit for controlling operation of the solid state switches. The control circuit comprises a programmed processor for commanding operation of the solid state switches and a memory connected to the programmed processor storing configuration information relating to operation of the solid state switches. A wireless communication interface is operatively connected to the programmed processor.

Abstract: A controller has a plurality of control units that are mutually connected by a communication line and are set at different places of an automobile, each corresponding to a different one of its power windows and serving to control its opening and closing. One of these control units is adapted to transmit a signal, in response to a switch operation, to another of the control units through the communication line to open or close the window corresponding to the latter control unit. When this control unit detects that it has submerged in water, it applies a constant voltage to an interface of the communication line. This prevents communications through the communication line and windows from moving in an unwanted manner.

Abstract: A control for an electric motor in a vehicle. The control ascertains whether an obstacle is interfering with rotation of the motor. The control establishes a baseline speed, representing normal free running speed of the motor. This baseline speed will be different, in different operating environments. Then the control determines whether measured motor speed drops below the baseline speed by a predetermined amount. If so, then the motor is shut down, or reversed.

Abstract: A motor actuator of a climate control system includes an specialized electric motor with a motor housing enclosing an encoder ring on a motor shaft having a plurality of opposite encoder-segment sets with encoder brushes on the housing wiping the encoder ring and thereby forming an encoder circuit through opposite segments of the encoder-segment sets. The electric motor further includes power and encoder terminals positioned externally of the motor housing with at least one power terminal being electrically coupled to one of the power brushes and at least one encoder terminal being electrically coupled to one of the encoder brushes. A control head of the system includes a continuity pulse counter coupled to the at least one encoder terminal for creating pulses representative of impedance in the encoder circuit and, therefore, movement of the motor shaft and a damper linked thereto.

Abstract: A power window driving device includes a reference-current generator, generating a reference current having a level which corresponds to the size of a motor current flowing into a drive motor for driving a power window, a first current generator, generating a first current having a level which corresponds to a variable mount value of the motor current, a second current generator, generating a second current equalized to the reference current by adding to the first current, a comparison signal generator, generating a comparison signal by converting the first current into voltage, a comparator, comparing the comparison signal with a reference voltage signal generated on the basis of the comparison signal, and a reverser, stopping or reversing the drive motor based on a result of the comparator which determine that a steep current increase is occurred in the motor current.

Abstract: A motor actuator (52) of a climate control system (37) includes an specialized electric motor (62) with a motor housing enclosing an encoder ring (104) on a motor shaft (77) having a plurality of opposite encoder-segment sets with encoder brushes (96a-b) on the housing wiping the encoder ring and thereby forming an encoder circuit through opposite segments of the encoder-segment sets. The electric motor further includes power and encoder terminals (98a-b and 100a-b) positioned externally of the motor housing with at least one power terminal being electrically coupled to one of the power brushes and at least one encoder terminal being electrically coupled to one of the encoder brushes. A control head (58) of the system includes a continuity pulse counter (72) coupled to the at least one encoder terminal for creating pulses representative of impedance in the encoder circuit and, therefore, movement of the motor shaft and a damper (40) linked thereto.

Abstract: An adjustable control pedal assembly (10) for a vehicle includes a bracket (12) adapted for mounting on the vehicle, an adjustment member (30), pivotally attached to the bracket (12), and a control mechanism (14) mounted to the adjustment member (30), for pivotal movement of the adjustment member (30) about a first axis (34) generally horizontal and transverse to the vehicle, and a pedal arm (16) attached to the control mechanism (14) for pivotal movement relative thereto about a second axis (52) parallel to the first axis (34). The control mechanism (14) includes an electronic control means (66) responsive to the degree of relative movement of the adjustment member (30) and the pedal arm (16) to produce a control signal proportional to such movement, and a motor (18) mounted on the bracket (12) adjacent the control mechanism (14), and a drive means (20) connecting the motor (18) to the control mechanism (14) for moving the control mechanism (14) and pedal arm (16) as a unit.

Abstract: An abnormality detector for motor drive system easily detects, using a CPU, abnormality such as short circuit or disconnection in magnetic field coils of a motor, wiring, an open/close element, etc., which are controlled by a microprocessor (CPU). The open/close elements conducting an open/close operation sequentially in response to pulse outputs P1, P2 generated by the CPU, drive the magnetic field coils. Surge voltages generated upon interrupting the mentioned open/close elements are OR connected through a diode, and input to a temporary storage circuit. Then the CPU reads out, stores and resets the surge voltages using pulse edges of the pulse output P1 or P2. When any generation of the surge voltage is not stored in the temporary storage circuit, the CPU operates an abnormality alarm display.

Abstract: A position adjusting system for adjusting the position of a seat n a vehicle and preventing movement of the seat resulting from external forces acting on the seat. The system includes a seat track fixable to the vehicle, a motor actuator, and a gear train engaged with the motor actuator. The seat track is adapted to cooperate with the seat track to convert movement of the motor actuator into movement of the seat track and the seat. A non-reversing clutch mechanism is coupled with the gear train and adapted to transfer torque from the motor actuator through the gear train to move the seat upon actuation of the motor actuator but locking upon torque being applied through the seat track, thereby preventing the external forces acting on the seat from moving the seat relative to the vehicle.

Abstract: A garage door drive assembly for moving a linkage arm connected to a garage door, the assembly being adapted for shipping in a partially assembled condition in at least a box for on-site installation, the assembly has a longitudinally-extending rail with laterally extending flanges. The assembly also has a carriage shaped to fit about the flanges. A drive mechanism is movably mounted to the rail. An anchor is coupled to the drive mechanism. The assembly also has a coupler with a selectively releasable connection to the anchor, a connector pivotably connectable to the linkage arm, and a detachable connection enabling the coupler to be fixedly secured to and carried by the carriage. The rail and the carriage may be shipped to the installation site in a box having a smaller cross-sectional profile than would be required to accommodate the carriage and coupling in their connected state.

Abstract: A simple and economical mechanism providing automatic motor control. The mechanism includes a motor-rated relay directly connected to line voltage and the input terminal of a motor winding, and receiving a signal from a sensing device connected to line voltage and to a signal input on the relay. The relay and sensing device may be housed within a waterproof enclosure, or may be separately housed within a connection enclosure and a separate sensing device enclosure remote from the connection enclosure, the two enclosures being connected by a cable. The sensing device triggers the relay to control the supply of current to the motor winding.

Abstract: A control circuit controls a coffee grinder having a grinder motor. The control circuit includes a timer portion and a first switch. The first switch functions as a two-condition switch to place the control circuit in one of (1) an off condition when the first switch is open and the timer portion and the grinder motor are de-energized and (2) a run condition when the first switch is closed, the timer portion is energized, and the grinder motor is energized once in the run condition, the control circuit remaining in the run condition until the timer portion times out or until the first switch is re-opened thereby returning the control circuit to the off condition.

Abstract: A vehicle with a tailgate (5) or the like, the vehicle being defined in that the tailgate (5) has a sensor for sensing objects at least during the opening operation.

Abstract: A control device for the drive motor of a windscreen wiper device in a vehicle, especially a motor vehicle, comprising a control switch which can be activated by means of a manually actuated wiper switch and which automatically controls the drive motor in a switching stage of said wiper switch according to a rain sensor signal corresponding to a characteristic curve. The operating data for the drive motor varies according to the external effects of lighting, temperature, or speed parameters.

Abstract: A method of controlling a DC servomotor for driving a driven member coupled by a wire to an operation member of a valve, wherein, at the start of a control, the motor is driven first to rotate the operation shaft of the valve to a limit position after the motor stops, a driving current of the motor is gradually reduced to return slowly the driven member by a tension of the wire, and a position of the driven member when the driving current of the motor becomes zero is stored as a final stop position, thereafter, a rotational range of the driven member is limited to the range between these final stop positions when the position of the driven member is controlled to coincide with a target position.

Abstract: The wiper control device comprises a wiper motor 52 for moving a wiper, a switch 53 for outputting a signal which inverts at each single sweep of the wiper, a wiper switch circuit 51 of a combination switch which instructs movement of the wiper, a first solid state switching element FET-b which drives the wiper motor, a controller 55 which turns the first solid state switching element on and off intermittently on the basis of the signal from the switch in a case in which intermittent wiper movement is instructed by the combination switch, a second solid state switching element FET-a2 which is connected in series to the first solid state switching element and is turned on by power source voltage, and a third solid state switching element FET-a1 which is connected in series to the second solid state switching element and is for braking the wiper motor.

Abstract: An appliance includes a rotating position switch and a selector switch. The rotating position switch has a first position associated with a first appliance function and a second position associated with a second appliance function. The second appliance function modifies the first appliance function. The selector switch has an actuated state configured to generate a signal representative of a selection of the first appliance function when the rotating position switch is in the first position. The actuated state is further configured to generate a signal representative of a selection of the second appliance function when the rotating position switch is in the second position.

Abstract: In a power window device an MCU detects motor torque values one by one when a window is opened and closed, compares the detected motor torque values with base values set to the travel regions and stops or reverses a motor determining that an object is pinched in the window when the former values exceed the latter values.

Abstract: A power window control apparatus for controlling vehicle power windows (12-18) includes window control switches (52-58) for controlling power window control motors (20-26). When two window control switches (52-58) are simultaneously and momentarily actuated downward, a controller (40) controls the motors (20-26) to lower the windows (12-18) to a predetermined position from an initially closed position. In the event that one or more windows are initially open, the controller (40) lowers the windows for the time interval that the two window control switches are actuated downward. When the two window control switches (52-58) are moved in the upward direction, the controller (40) simultaneously controls all the motors (20-26) to raise all open windows (12-18) to a fully closed position.

Abstract: A power window apparatus is provided that, even if a CPU (IC2) causes malfunction or becomes uncontrollable upon submergence, can prevent windows from performing unexpected operations and enables the windows to be opened without fail if desired.

Abstract: An apparatus (10) for detecting a window open condition comprises a first photoelectric cell (60) mountable to the window (20) for providing a reference output signal (61) independent of the window open condition. The apparatus (10) also comprises a second photoelectric cell (62) mountable to the window and providing a signal (63) having a first characteristic if the window (20) is open and a second characteristic if the window is not open. The apparatus (10) further comprises comparison means (82) for comparing the reference output signal (61) with the signal from the second photoelectric cell (63). The comparison is indicative of the open condition of the window. The apparatus (10) comprises means (88) responsive to the comparison means (82) for indicating if the vehicle window (20) is in the open condition.

Abstract: A powered liftgate actuation system for a vehicle in which opening and/or closing of the liftgate is inhibited if the vehicle is positioned too close to an obstruction for unobstructed movement of the liftgate. Non-contact ranging sensors are mounted to the vehicle and directed rearward to detect a clearance distance between the vehicle and an obstruction, and a control circuit for the motor inhibits actuation of the motor by a remote control unit if the ranging sensors indicates the clearance distance is less than the distance by which the liftgate extends beyond the rear of the vehicle. The control circuit has an override feature allowing the remote control unit to be used to actuate the motor and open the liftgate in spite of the ranging sensor indicating the clearance distance is too small. The ranging sensors may also serve as a component of a backup aid warning system used to detect obstructions located behind the vehicle while the vehicle transmission is in a reverse gear position.

Abstract: The control device includes a switch (12) controlling the power supply to the motor and an actuator which actuates this switch by rotatably reacting against the moving object being restrained so as to cause said switch to be opened and to cut off the power supply to the motor. This actuator consists of a bistable mechanical device (11) capable of taking up a first state in which the switch (12) is closed and a second state in which the switch is open. The actuating device also includes a cable (17) for putting the actuating device into its first state, this device being brought into its second state by reacting against the moving object.

Abstract: A panel member such as a display panel is rotated with a predetermined shaft as a center of the rotation. The rotation controlling apparatus for controlling the rotation of the panel member is provided with: a signal generating device for generating a position detection signal indicative of an angular position of the panel member around the shaft in response to a rotation of the panel member around the shaft; and a controller for controlling the rotation of the panel member in accordance with the position detection signal generated by the signal generating device, so as to stop the rotation of the panel member by using as a standard a generation timing of the position detection signal, which has a predetermined signal value based on a stop position signal value implying a value of the position detection signal indicative of a stop position at which the rotation of the panel member should be stopped.

Abstract: A device for displacement of a movable part on motor vehicles such as sliding roofs, windows or the like including an electrical servomotor permanently mechanically coupled to the movable part and a supply circuit adapted to operate the electrical servomotor and to brake the electrical servomotor by short circuiting the electrical servomotor when the movable part reaches a desired position, where the supply circuit includes an isolating device for breaking the supply circuit to prevent short circuit braking of the electrical servomotor thereby allowing manual displacement of the movable part.

Abstract: In one form, the present invention provides an apparatus for controlling a windshield wiper system of a motor vehicle in combination with the motor vehicle. The motor vehicle has a steering wheel. The apparatus includes a first actuation device coupled to the windshield wiper system. The first actuation device controls continuous operation of the windshield wiper system at a selected speed. The second actuation device is coupled to the windshield wiper system and is operative to temporarily increase the selected speed selected by the first actuation device. The second actuation device includes a button for attachment to the steering wheel.

Abstract: A squeeze protection system for movable parts of a vehicle, includes an operating switch for one or several parts to be moved, one or several actuators assigned to the operating switch, a control device for the actuator or the actuators which receives a signal from the operating switch, and a device for determining an irregularity during the movement of the movable part which device is coupled with the control device. In order to ensure a secure closing of the movable part also in the event of an operating disturbance, it is provided that, when the operating switch is activated and an irregularity is detected during the movement of the movable part, the movement is first interrupted and is then continued at a higher switch-off threshold.

Abstract: A man machine interface for an A-C motor bypass has a membrane keypad with a multiplicity of pushbuttons connected to a micro-controller. The micro-controller controls the flow of current to the coil of each of the drive and bypass contactors to thereby open or close those contactors depending on if the motor is to be driven and how it is to be driven. The micro-controller includes code that simulates a first state machine that determines the operating condition of the drive and bypass contactors and if it is desired to open that one of the two contactors which is presently open and close that one of the two contactors when is presently open. The micro-controller includes code which simulates a second state machine which is active only when the inverter contactor is open. This state machine determines if the motor is to run or stop and closes or opens the bypass contactor accordingly.

Abstract: A wiper driving apparatus for vehicles capable of preventing the temporary standstill and overrun phenomenon of wiper blades.

Abstract: An apparatus capable of manually and electrically driving an optical unit comprising a manual operation unit for manually driving the optical unit, an electric drive unit for electrically driving the optical unit, a discrimination unit for discriminating whether the optical unit is electrically or manually driven on the basis of a drive command signal for driving the electric drive unit and a state changeover unit for switching the optical unit to an electrically driven state or a manually driven state on the basis of a discrimination result obtained with the discrimination unit.

Abstract: The control device includes a switch (12) controlling the power supply to the motor and an actuator which actuates this switch by rotatably reacting against the moving object being restrained so as to cause said switch to be opened and to cut off the power supply to the motor. This actuator consists of a bistable mechanical device (11) capable of taking up a first state in which the switch (12) is closed and a second state in which the switch is open. The actuating device also comprises exclusively manual means, such as a cable (17) for putting the actuating device into its first state, this device being brought into its second state by reacting against the moving object.