Patent application number | Description | Published |
20090049058 | INFORMATION PROCESSING APPARATUS, INFORMATION PROCESSING METHOD, AND INFORMATION PROCESSING PROGRAM - The present invention provides an information processing apparatus including: a communication connection section that is communicably connected to an external apparatus; a first storage section that stores a predetermined program to be executed by the external apparatus, and for which read/write operation from the external apparatus is inhibited; a second storage section to which read/write operation from the external apparatus is inhibited; and a write section that reads out the predetermined program stored in the first storage section when the information processing apparatus is communicably connected to the external apparatus by the communication connection section and writes the read out program in the second storage section. | 02-19-2009 |
20120311483 | IMAGING APPARATUS - An imaging apparatus generates a GUI screen image for operating the imaging apparatus. A controller controls the generation of the GUI screen image upon detecting a predetermined operation. | 12-06-2012 |
20150187386 | EDITING APPARATUS, REPRODUCTION APPARATUS, EDITING METHOD, REPRODUCTION METHOD, AND PROGRAM - There is provided an editing apparatus, including a route information generation section which generates route information from an imaging start point up to an imaging end point of a moving image, and a control information generation section which generates control information for controlling a reproduction speed of the moving image based on the route information. | 07-02-2015 |
Patent application number | Description | Published |
20090024280 | VEHICLE STEERING APPARATUS - A vehicle steering apparatus | 01-22-2009 |
20090026003 | VEHICLE STEERING APPARATUS - A vehicle steering apparatus | 01-29-2009 |
20100181140 | ELECTRIC POWER STEERING APPARATUS - A rotational angle sensor used in an electric power steering apparatus detects a rotational angle of a motor shaft at a portion on a steering system side, as a motor rotational angle (θm). A MPU sets a base correction amount (Δθ′m) based on a q-axis actual current value (Iq). The MPU sets a rotational angle correction amount (Δθm) used to correct the motor rotational angle (θm) by decreasing the base correction amount (Δθ′m) as a rotational angular speed (ω) increases and by increasing the base correction amount (Δθ′m) as a torque differential value (dT/dt) increases. | 07-22-2010 |
20110005855 | MOTOR CONTROLLER AND ELECTRIC POWER STEERING SYSTEM - A motor controller and an electric power steering system including the motor controller are provided. The motor controller has a microcomputer. When the on time of one of the lower potential-side FETs corresponding to the respective phases in a drive circuit becomes shorter than the detection time for detecting the phase current value, the microcomputer estimates the phase current value of the electric current undetectable phase based on the phase current values of the two phases other than the electric current undetectable phase corresponding to the relevant FET (blind estimation). When electric current detection is performed in the blind estimation, motor control signals are output, by which the switching state of the switching arm of the electric current undetectable phase is maintained and the power loss caused by the switching operation of the FETs in the two phases other than the electric current undetectable phase is compensated for. | 01-13-2011 |
20120274260 | MOTOR CONTROL UNIT AND VEHICLE STEERING SYSTEM - In a motor control unit, a current-carrying failure detection unit determines a first determination condition and a second determination condition. The current-carrying failure detection unit measures a duration of a state where the first determination condition is satisfied, and a duration of a state where the second determination condition is satisfied. When the first or second duration exceeds a predetermined reference period, the current-carrying failure detection unit determines that a current-carrying failure has occurred. | 11-01-2012 |
20140139158 | MOTOR CONTROL DEVICE AND STEERING DEVICE FOR VEHICLE - In a state in which the energization in the first direction is possible between the motor and the drive circuit and the motor is not rotating at high speed, when the phase induced voltage value of the specific phase that is the target of determination is continuously equal to or smaller than the abnormality determination threshold, the abnormality detecting unit determines that an open malfunction has occurred in the relay FET of the specific phase. | 05-22-2014 |
20140200767 | MOTOR CONTROL DEVICE AND ELECTRIC POWER STEERING APPARATUS - A motor control apparatus includes a plurality of voltage detecting sections configured to each detect a terminal voltage of one of phases of a brushless motor, and a control section configured to control driving of the motor. The control section takes in, via separate signal lines, detection signals of the voltage detecting sections. When the condition that any two of terminal voltage detection values of respective phases obtained from the detection signals of the voltage detecting sections are continuously equal to each other is satisfied, the control section determines that a short circuit has occurred between any of the signal lines. | 07-17-2014 |
20140207335 | ELECTRIC POWER STEERING SYSTEM - There is provided a drive control method for a motor including multiple sets of coils and drive circuits in an electric power steering system. In order to reduce computational load when sensorless control is executed, an electrical angle estimator includes an α-axis voltage component adder and a β-axis voltage component adder that add together voltage vectors of a first coil and a second coil expressed in a two-phase fixed coordinate system, an α-axis current component adder and a β-axis current component adder that add together current vectors of the first coil and the second coil expressed in a two-phase fixed coordinate system, and an induced voltage computing unit that computes an induced voltage based on an added voltage vector and an added current vector. | 07-24-2014 |
20150046039 | SENSOR DEVICE, MOTOR CONTROL DEVICE, AND ELECTRIC POWER STEERING APPARATUS - A sensor device, such as a torque sensor, of a motor control device or an electric power steering apparatus includes a sensor section that detects a quantity of state of a detection subject and outputs a detection signal corresponding to the detected quantity of state. When receiving a specific trigger transmitted from an external device, the sensor section outputs an abnormality diagnosis signal, which is configured by a predetermined waveform and used for determining whether there is an output abnormality of the sensor section, and then outputs the detection signal. | 02-12-2015 |
20150251692 | MOTOR CONTROL DEVICE AND ELECTRIC POWER STEERING DEVICE - A motor control device includes a motor drive circuit and a microcomputer that controls the drive circuit. The microcomputer generates a control signal on the basis of duty command values Du, Dv, and Dw to control the drive circuit. The microcomputer includes a dead time compensation section that corrects the duty command values Du, Dv, and Dw on the basis of dead time compensation values Ddu, Ddv, and Ddw. The dead time compensation section includes a basic compensation value computation section that computes a basic compensation value Dd as a fundamental value of the dead time compensation values Ddu, Ddv, and Ddw, and a filter section that performs a filtering process corresponding to a low-pass filter on the basic compensation value Dd. The dead time compensation section sets the dead time compensation values Ddu, Ddv, and Ddw on the basis of an output value α from the filter section. | 09-10-2015 |
20150298726 | STEERING CONTROL SYSTEM FOR VEHICLE AND STEERING CONTROL METHOD FOR VEHICLE - A steering control system for a vehicle includes an electric motor, a torque sensor, an angular velocity sensor, and a control unit. The electric motor applies assist force to a turning operation of a steering wheel. The torque sensor detects a torque generated in a steering system including the steering wheel and varying with the turning operation. The angular velocity sensor detects an angular velocity generated in the steering system and varying with the turning operation. The control unit computes an assist control amount for the turning operation by using the torque and the angular velocity, and, when an abnormality occurs in a torque detection operation, increases a control amount computed by using the angular velocity among control amounts that constitute the assist control amount as compared to that when torque sensor operation is normal and executes drive control over the electric motor based on the assist control amount. | 10-22-2015 |