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| Number | Title | Issue Date |
| 7982421 | Electric vehicle controller An electric vehicle controller includes a speed sensorless vector controller for estimating the rotating speed of an AC motor from an output voltage command and an output current from a VVVF inverter, and controlling the VVVF inverter based on the estimate. An overh... | 07/19/2011 |
| 7859213 | Control device and control method A control device for controlling a recovery from a locking of a motor includes: a switching unit which supplies a motor current from a current supplying unit to the motor; and a driving control unit which supplies a PWM control signal to the switching unit to contro... | 12/28/2010 |
| 7417395 | Switch-based door and ramp interface system An interface system is presented, which prevents operational interference between a vehicle power door and a ramp of an access system by interrupting power to the motors and actuators responsible for operating the door. The interface system includes a relay system t... | 08/26/2008 |
| 7157877 | Brushless motor driving device A brushless motor driving device having a current detecting unit for detecting a phase-current of a brushless motor, a voltage detecting unit for detecting a phase voltage of the brushless motor, and a signal input portion to which the detection value of the phase-c... | 01/02/2007 |
| 7122988 | Rotation drive device and rotation drive method This rotation driving apparatus includes a torque generating circuit 72 for generating a torque of a servo motor 30 with voltage supply from a power source 71 and a motor control circuit 73 for controlling rotation of the motor. In the to... | 10/17/2006 |
| 7070013 | Decentralized power supply system for a vehicle A motor vehicle has a plurality of electric consuming devices and a power supply system for supplying the electric consuming devices with electric energy. The power supply system has a decentralized construction and, for supplying electric energy to at least one ele... | 07/04/2006 |
| 7023160 | Method for controlling doubly-fed machine A method for operating a doubly-fed machine by determining its rotational speed (nact), forming a rotational speed reference (nref), measuring network voltage and current, and calculating network active power (Pact) and reactive powe... | 04/04/2006 |
| 6316896 | Man machine interface for an A-C motor bypass 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 o... | 11/13/2001 |
| 5381065 | Vehicle window and lock securement A control circuit for controlling a vehicle window closing and door locking device, comprises a first circuit having three X-OR gates and one AND gate for determining the vehicle general conditions, a second circuit having AND gates and power transistors ... | 01/10/1995 |
| 4998049 | Control apparatus having a remote abort function An improved control for a motorized deck lid pulldown mechanism in which the pulldown sequence is selectively reversible to return the deck lid to its fully opened position if the operator of the vehicle elects to abort the pulldown sequence. Initial actu... | 03/05/1991 |
| 4986380 | Motorized power steering apparatus A motorized power steering apparatus for a vehicle has a torque sensor including a right turn potentiometer and a left turn potentiometer which generate output voltages corresponding to the steering torque during a right turn or a left turn, respectively.... | 01/22/1991 |
| 4823059 | Control apparatus for a compartment panel pull down mechanism A control for a motorized deck lid pull down mechanism which does not require the use of mechanically activated limit switches for detecting deck lid positions or the presence of closing or sealing obstructions. Detection of specified pull down conditions... | 04/18/1989 |
| 4517501 | Rotation control system A rotation control system including speed control feedback automatic speed control apparatus for controlling the rotation speed of a rotator to a predetermined speed, feedback automatic phase control apparatus for controlling the rotation phase of the rot... | 05/14/1985 |
| 4288828 | Protection system for electric motors A solid state protection system for AC electric motors driving high inertia loads requiring long acceleration times. An electroresponsive relay (OL) is separately responsive to permissible acceleration time, circuitry (DT, DC), acceleration overload curre... | 09/08/1981 |
| 4096422 | Motor control system The duty cycle of the alternating current waveform applied to an electric motor is varied by varying the firing point of an SCR circuit. This firing point is varied by logic circuitry which responds to the largest (or smallest) output of several integrato... | 06/20/1978 |
