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WO/2007/068711A1 |
The field of the invention is that of safety devices for operating the actuators of aircraft and more specifically the flight control actuators of a helicopter. The invention consists of a safety operating device for controlling an actua...
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WO/2007/066625A1 |
A drive signal generation circuit (1) generates drive signals SDH, SDL for controlling ON/OFF of a transistor of an H-bridge circuit (110) in accordance with a torque target value. According to the drive signals SDH, SDL outputted from t...
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WO/2007/063040A1 |
In order to prevent the vehicle battery from being discharged completely in the event of a faulty signal line (7) between an external signal source (8, 9) and a cooling fan (1) for a motor vehicle, it is proposed that a duplicated evalua...
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WO/2007/056255A2 |
A battery-powered tool (100) indicates to an operator that a torque limit has been reached. The tool comprises a driver circuit (312) for generating motor interface driving signals, a motor interface circuit (314) coupled to a motor (316...
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WO/2007/056370A2 |
A power tool includes solid-state motor control. The tool includes a solid state variable speed control signal generator for generating a variable speed control signal, a microcontroller for generating a pulse width modulated (PWM) signa...
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WO/2007/046120A1 |
The present patent application refers to an actuator for automotive climatization units, of the type designed to be driven by an electric control unit with direct current and low voltage, characterised in that it is provided with an elec...
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WO/2007/044913A2 |
A method varies motor torque inversely as a function of speed.
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WO/2007/042359A1 |
The invention relates to a device for supplying pulse width-modulated output pulses for the motor of a fan. Said device comprises an arithmetic unit and at least one final output stage. The arithmetic unit and the final output stage are ...
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WO/2007/037692A2 |
The invention relates to a regulator circuit for controlling the power fed to an electric motor from a voltage source, wherein the regulator circuit comprises a semiconductor switching element connected in series to the electric motor an...
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WO/2007/036023A1 |
A method for determining an initial position of a rotor of a polyphase motor is described. The method comprises determining current change values from a plurality of phases of the motor during saturation of the motor relating to the init...
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WO/2007/029517A1 |
In an excess current protection circuit (23), a timer circuit (TMR) generates an excess current protection signal (EN) according to comparison results between a detection voltage Va (Vb) and a voltage VrefL and between the detection volt...
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WO/2007/026559A1 |
A motor drive device (2) comprising an H bridge circuit (21) having four switching elements (QH1, QH2, DL1, DL2) connected in an H bridge form to a motor coil L, a control circuit (22) for on/off-controlling each switching element, and a...
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WO/2007/023016A1 |
The aim of the invention is to reduce the error rate of the electronic system of a motor vehicle. For this purpose, a device for controlling a radiator fan motor (M) in a motor vehicle comprises a control device (C) having a control circ...
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WO/2007/017483A1 |
Information for controlling the window-lifter can be determined by using the supply flow of a DC motor (M) which drives a window lifter. The invention relates to a simple-to-produce and construct electronic circuit (ES) which measures po...
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WO/2007/015968A2 |
A kW-based torque controller for use with an AC induction motor has been developed that includes an AC-to-DC converter for receiving incoming three-phase power from a utility and converting the three-phase AC signal to a DC signal, a DC-...
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WO/2007/013320A1 |
In a PWM controlled motor, a motor frequency f is detected (S1), and then a PID control Duty value is calculated (S2) and a basic limit Duty value Max.Duty(1) is set (S3). Max.Duty value at -40°C is used in the Max.Duty(1). Motor temper...
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WO/2007/012949A1 |
Controlling and adjusting of the operation of a device actuated by an electric motor are carried out by shutting down the electric power supply of said electric motor at a plurality of time intervals during the motor operation, measuring...
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WO/2007/006482A1 |
The invention describes a circuit arrangement for actuating an electric motor in a motor vehicle, having two relays which each have a changeover contact, with the changeover contacts forming a bridge circuit for connecting the motor conn...
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WO/2007/007794A1 |
In a motor undergoing PWM control, rotational frequency f of the motor is detected (S1), and then a PID control Duty value is calculated (S2) and a Max.Duty value is set (S3). Acceleration/deceleration state of the motor is judged from v...
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WO/2007/005318A2 |
The torque of a motor (16) operated by an inverter circuit is controlled to allow maximum torque in the motor when the motor is stalled or at low rotation speeds. Control is accomplished by providing a switching frequency to the motor at...
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WO/2007/001800A2 |
A digital motor control system (Fig 4) utilizes time duration electric pulses generated by digital logic (10, 13, 18, 19) to control the motor speed and direction of rotation of a D C or A C motor (30) The digital logic (10, 13, 18,19) p...
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WO/2006/135708A1 |
The present invention relates to a a unipolar current electrical machine operable as a switched reluctance motor, comprising a motor structure and a control unit. The motor structure comprises a plurality of disk-shaped annular stator el...
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WO/2006/131415A1 |
In order to control an electromotive drive MK/MBL, a control unit CU is proposed which has control modules CM1/CM2/CM3 for controlling half-bridge end power stages HB1/HB2/HB3. Two of the control modules CM1/CM2 are pre-configured for al...
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WO/2006/127112A1 |
Brushed DC electric motors have a rotor with commutator portions moving into and out of contact with brushes. As each of these contacts end, a back EMF force is induced into a main current supply signal. The number of these periodic forc...
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WO/2006/124010A1 |
A control system and method for an electric machine includes a first calculation module that receives a modified torque command and a calculated stator flux command and that generates first and second current commands and first and secon...
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WO/2006/107503A1 |
An electric motor control having reduced electromagnetic interference (EMI) emissions includes a motor controller, a switch, and a power converter. The motor controller upon receipt of a control signal causes the switch to toggle between...
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WO/2006/106003A1 |
The invention relates to a device and a method for controlling an electromechanical power converter (10), particularly of an electric motor and/or generator in which comparatively cost-effective switches (14, 18) can be used without dras...
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WO/2006/102859A1 |
The invention relates to a method and a device (1) for control of a commuted electric motor (2), whereby an operating voltage (UA) of the electric motor (2) is pulse width modulated and switching edges for the operating voltage (UA) are ...
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WO/2006/100139A1 |
The invention relates to a device and method for capturing a DC-motor residual voltage, wherein said DC-motor is driven by a clocked control. In a normal operation, the DC motor is driven by a PWM drive and a first predefinable pulse/pul...
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WO/2006/097390A1 |
The invention relates to a method and circuit arrangement for limiting a current consumption of a direct current motor supplied by a continuous voltage network, in particular a fan motor supplied by a motor vehicle voltage supply network...
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WO/2006/098858A2 |
A powered panel moving system includes a motor, electronic drive circuitry, a mechanism, a coupler, and electronic function circuitry. The drive circuitry drives a rotor of the motor. The coupler couples rotational output of the rotor to...
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WO/2006/092219A1 |
The invention relates to a ventilation appliance embodied as an exhauster hood (1), said appliance comprising a drive (40) for generating an air flow, an illumination device (310), and a control unit (220). Said control unit (220) genera...
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WO/2006/091289A1 |
A motor control system for a two-phase brushless DC motor (11; 111) uses measured EMF voltage (17; 117) from the passive set of stator coils (113, 114) to control commutation (19; 119) . A microcontroller (101) receives the EMF voltage m...
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WO/2006/089548A1 |
The present invention relates to a method for testing an electronic circuit comprising a plurality of switching elements arranged in a H-bridge configuration, the electronic circuit being adapted to drive an associated DC-motor operative...
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WO/2006/086980A1 |
The present invention relates to a method for ensuring a constant target speed of a battery driven electrical motor, the battery driven electrical motor being adapted to move a piston rod in an injection device so as to inject a set dose...
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WO/2006/084520A1 |
The invention relates to a method and a circuit arrangement for recording a current of a pulse-width modulation-controlled electric motor (10) which is powered by a constant voltage supply network and connectable thereto by means of a se...
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WO/2006/069635A2 |
The invention relates to a method for determining the position of an actuating unit that is operated by an electric motor. According to said method, a rotational speed of a motor is determined from a motor model, the rotational speed pre...
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WO/2006/068116A1 |
A motor driving apparatus by which a motor start time is shortened. In the motor driving apparatus (100), a control section (110) detects a number of rotations of a motor to be driven, and a control voltage (Vcnt) is generated to have th...
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WO/2006/067975A1 |
There is provided motor drive capable of setting the r.p.m. of a fan motor flexibly depending on the temperature. In a fan motor drive circuit (100) for driving a motor based on a pulse modulated external control signal CNText, a tempera...
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WO/2006/061282A1 |
The invention relates to a method for determining the speed of an electric machine (M) having a protective resistor (RV). The inventive method is characterized by establishing a ratio of the machine voltage (UM) to the protective resisto...
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WO/2006/058509A1 |
The invention relates to a method for determining the charge of an electric drive motor (2) which is coupled thereto in order to drive said motor. The aim of the invention is to identify a surcharge in an economical and reliable manner. ...
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WO/2006/054581A1 |
In a swing control device mounted on a motorized swing shovel (construction machinery), when a quick operation by a swing lever causes the abrupt rise or fall of a lever signal, a gradient corresponding to rise time Ta1 or fall time Tb1 ...
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WO/2006/054582A1 |
A rotation control device (50) of an electrically rotated shovel performs control of a rotating body by a small first torque command value T1 when the rotating body is rotated at constant speed. Therefore, variation in inertia moment of ...
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WO/2006/048023A1 |
A drive mechanism has a reversible electric motor, which can be short-circuited to stop the rotation of the motor. Hereby higher precision can be achieved. A magnetic brake has a rotor, which has one or more neutral angular positions rel...
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WO/2006/045815A1 |
The invention relates to a method for operating an electromechanical actuating unit, which is formed, in essence, of an electronic control unit and of at least one electric motor. The electric motor is controlled by the electronic contro...
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WO/2006/042893A1 |
The invention relates to a control method and system comprising an electronic control unit (11) which manages the electric current supply from an electric power source to a motor/compressor group (12, 13). The aforementioned electronic c...
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WO/2006/042259A2 |
An access control mechanism such as a movable barrier operator (70) has a first time window unit (72) that is responsive to one or more triggers (71) (such as a delayed-closure button). An event detector (73) then monitors for one or mor...
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WO/2006/039662A2 |
Featured is a controller for a motor that is ultra-compact, with a power density of at least about 20 watts per cubic cm (W/cm3).The controller utilizes a common ground for power circuitry, which energizes the windings of the motor, and ...
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WO/2006/034733A1 |
The invention relates to a device (10) for the incremental control of at least one first direct-current motor (12) for the cooling fan of a motor vehicle. Said device comprises a first (14) and a second current-limiting component (16), a...
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WO/2006/034217A1 |
A battery-powered vehicle for transporting a mined payload or supplies over the roadways existing in or around an underground mine, includes variable voltage, variable frequency drivers that convert DC voltage from a battery into an AC v...
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