Patent application number | Description | Published |
20100013688 | SIGMA-DELTA TYPE ANALOG-TO-DIGITAL (AD) CONVERTER AND ANGULAR VELOCITY SENSOR USING SAME - An angular velocity sensor with a stable output characteristic using a sigma-delta type analog-to-digital converter comprising an integrator unit for integrating electric charges output from an input switching device and a digital-to-analog converter unit and holding at least two integrated values, a comparator unit for comparing at least the two integrated values output from the integrator unit with a predetermined value, and an arithmetic operation unit for operating an output signal of the comparator unit, the arithmetic operation unit provided with a differential operation unit for computing a difference between at least two comparison signals output from comparator unit. | 01-21-2010 |
20100206069 | PLL CIRCUIT AND ANGULAR VELOCITY SENSOR USING THE SAME - A PLL circuit is provided with an AD converter, a DA converter to which output from the AD converter is inputted, a filter circuit filtering an output signal of the DA converter, a voltage control oscillator outputting a signal of a different frequency in accordance with an output signal from the filter circuit and a frequency divider dividing a signal which the voltage control oscillator outputs. The AD converter operates by a timing signal from the voltage control oscillator and the DA converter outputs an analog signal corresponding to a value which the AD converter outputs by the timing signal outputted from the frequency divider. | 08-19-2010 |
20110179869 | ANGULAR VELOCITY SENSOR ELEMENT, ANGULAR VELOCITY SENSOR AND ANGULAR VELOCITY SENSOR UNIT BOTH USING ANGULAR VELOCITY SENSOR ELEMENT, AND SIGNAL DETECTING METHOD FOR ANGULAR VELOCITY SENSOR UNIT - The angular velocity sensor of the present invention has one end connected to holding section and the other end connected to weighting section. According to the angular velocity sensor, driving arm has a dog-leg structure of arms extending in a direction perpendicular to a connecting direction of holding section and weighting section. | 07-28-2011 |
20120000288 | PHYSICAL QUANTITY SENSOR - A physical quantity sensor includes a deformable body in which strain occurs in response to a stress applied thereto, a vibrator vibrating with a frequency according to the strain or with an amplitude according to the strain, and a processor processing a signal output from the vibrator. The vibrator is mounted to the deformable body such that the strain transmits to the vibrator. The processor is bonded to the deformable body such that the strain does not substantially transmit to the processor. This physical quantity sensor can stably detects strain and tension acting on an object. | 01-05-2012 |
20120111111 | ANGULAR SPEED SENSOR - An angular velocity sensor includes a vibration, first and second sensor electrodes generating an electric charge responsive to an angular velocity applied to the vibration body, first and D/A converters each outputting at least two levels of an electric charge, first and second integrator circuits integrating the electric charge generated by the first and second sensor electrodes and the electric charges output from the first and second D/A converters, respectively, a comparator unit comparing output signals from the first and second integrator circuits, first and second D/A switching units switching levels of the output signals from the first and second D/A converters according to a comparison result of the comparator unit, a first disconnection detecting switch connected between the first sensor electrode and the first integrator circuit, a first voltage source for injecting an electric charge into a point between the first sensor electrode and the first integrator circuit via the first disconnection detecting switch, a second disconnection detecting switch connected between the second sensor electrode and the second integrator circuit, and a second voltage source for injecting an electric charge into a point between the second sensor electrode and the second integrator circuit via the second disconnection detecting switch. This angular velocity sensor has a high reliability and performs stable operation even if ambient environment changes. | 05-10-2012 |
20120191398 | ANGULAR VELOCITY SENSOR - An angular velocity sensor includes a vibration body having a sensor electrode, a driving electrode, and a monitor electrode. The monitor electrode generates a signal according to vibration of the vibration body. The sensor circuit outputs a signal representing an angular velocity applied to the vibration body. The amplitude determination circuit measures amplitude of vibration of the vibration body. A PLL circuit includes a constant voltage source for generating a constant voltage, a timing switching unit for outputting a voltage by switching selectively between the constant voltage and a voltage corresponding to the monitor signal, and a voltage-controlled oscillator for outputting an oscillation signal having a frequency corresponding to the voltage output from the timing switching unit. When the amplitude measured by the amplitude determination circuit is smaller than a predetermined value, the timing switching unit outputs, to the voltage-controlled oscillator, the constant voltage output from the constant voltage source and outputs a start-up mode signal. This angular velocity sensor has a stable output characteristic. | 07-26-2012 |
20130233046 | INERTIAL FORCE SENSOR - An inertial force sensor of the present invention includes a detection element, a detection circuit for detecting the amount of inertia corresponding to the inertial force applied to the detection element; a first low-pass filter connected to the output side of the detection circuit; and a correction circuit for correcting the output of the first low-pass filter. The correction circuit includes a correction amount generation unit connected to the output side of the first low-pass filter; a correction amount storage unit connected to the output side of the correction amount generation unit; and a correction unit to connected to the output side of the first low-pass filter and to the output side of the correction amount storage unit. The correction unit corrects an output value of the first low-pass filter based on a correction amount stored in the correction amount storage unit. | 09-12-2013 |
Patent application number | Description | Published |
20090015201 | Hybrid Vehicle and Control Method Therefor - An HV-ECU executes refresh-discharging of a battery before the battery is charged from a commercial power source using an AC/DC converter. After the battery is refresh-discharged, the HV-ECU outputs a control signal to the AC/DC converter such that the battery is charged from the commercial power source by the drive of the AC/DC converter. | 01-15-2009 |
20090024267 | Control Device of Vehicle and Vehicle - A vehicle includes a high-voltage battery, a socket for connection of a charging cable of an external power supply apparatus for charging the high-voltage battery, and a load for cooling and heating and a load for warming-up an engine that serve as in-vehicle loads receiving electric power from the high-voltage battery or an auxiliary machinery battery and controlled by a control device. The control device drives the in-vehicle electric load in response to disconnection of the charging cable from the socket. Preferably, the control device stops the in-vehicle electric load that has been driven when a prescribed stop condition is satisfied. | 01-22-2009 |
20090240387 | Control Device of Hybrid Vehicle and Hybrid Vehicle - A hybrid vehicle includes a motor generator used for driving the vehicle, an engine used in combination with the motor generator, an accelerator sensor arranged in an instructing unit instructing increase and decrease in required drive torque, and a control device starting the engine when a required engine output value exceeds a start threshold. The controller decreases the start threshold according to at least increase in required drive torque, and preferably decreases the start threshold further according to decrease in vehicle speed sensed by a vehicle speed sensor. | 09-24-2009 |
20100078238 | POWER OUTPUT APPARATUS, HYBRID VEHICLE EQUIPPED WITH POWER OUTPUT APPARATUS, AND CONTROL METHOD OF POWER OUTPUT APPARATUS - When a required speed ratio as a required value of a speed ratio between an engine and a driveshaft becomes equal to or less than a lower limit speed ratio that is not more than an n-th shift speed ratio during an n-th speed state of a transmission, a hybrid vehicle controls the engine, two motors, and the transmission to ensure output of power based on a torque demand to the driveshaft while performing an engine rotational speed adjustment of making a rotational speed of the engine equal to a shift rotational speed corresponding to an upper side shift speed ratio or an effective shift speed ratio and a shift from an n-th speed state to an (n+1)-th speed state. | 04-01-2010 |
20100203996 | CONTROL SYSTEM FOR HYBRID DRIVE UNIT - To provide a control system capable of setting a various kinds of driving mode, and shifting the driving mode regardless of the rotational speed of the engine. | 08-12-2010 |
20120296503 | CRANKING TORQUE CONTROL APPARATUS - A cranking torque control apparatus ( | 11-22-2012 |
20130017926 | CRANKING TORQUE CONTROL APPARATUSAANM Miwa; KojiAACI Susono-shiAACO JPAAGP Miwa; Koji Susono-shi JPAANM Kawai; TakashiAACI Gotemba-shiAACO JPAAGP Kawai; Takashi Gotemba-shi JP - A cranking torque control apparatus ( | 01-17-2013 |
20130226386 | CHARGE AND DISCHARGE CONTROL APPARATUS AND METHOD - A charge and discharge control apparatus is provided with: a setting device which is configured to set a hunting allowable period (T), which is a hunting period in which hunting of engine power is allowed; and a calculating device which is configured to calculate a charge and discharge amount of a battery by multiplying a difference between a state of charge (SOC) of the battery and a target SOC, which is a target value of the SOC, by a charge and discharge coefficient determined on the basis of the hunting allowable period. | 08-29-2013 |
20130233268 | ENGINE STARTING APPARATUS - An engine starting apparatus is provided with: a target torque setting device for setting a sum of a cranking base torque for cranking an engine and a vibration controlling torque for suppressing vibration of a power transmission system due to resonance of a damper, as a target torque to be outputted by a motor in cranking the engine; and a motor controlling device for controlling the motor to output the set target torque. The target torque setting device has a base torque controlling device for setting the cranking base torque to a first torque value if the number of revolutions of the engine is less than or equal to predetermined number of revolutions of the engine and for controlling the cranking base torque. | 09-12-2013 |
20140300316 | POWER SUPPLY DEVICE AND POWER SUPPLY METHOD - A power supply device which performs power supply from an outside to a vehicle includes: a power source section for performing the power supply to the vehicle; and a control device that performs control of the power source section. The control device obtains information about power reception efficiency of the vehicle as an object of the power supply and determines a power reception efficiency range and a fee that correspond to the obtained information from a plurality of power reception efficiency ranges and plurality of fees that are set corresponding to the plurality of power reception efficiency ranges. The power supply device preferably further includes a power transmission section for receiving the power from the power source section and contactlessly performing power transmission to the vehicle. | 10-09-2014 |
20140371967 | VIBRATION DAMPING CONTROL APPARATUS - A vibration damping control apparatus is mounted on a hybrid vehicle provided with an engine and a motor generator coupled with the engine. The vibration damping control apparatus (i) calculates pulsating torque of the engine and inertia torque of the engine, (ii) sets, as consumption torque, a value obtained by subtracting the inertia torque from the pulsating torque, (iii) sets, as shaft torque of an output shaft of the engine, a value obtained by subtracting the consumption torque from base torque of the motor generator, (iv) calculates vibration damping torque which is torque for suppressing a variation in the shaft, and (v) controls the motor generator such that torque outputted from the motor generator is a sum of the base torque and the vibration damping torque. | 12-18-2014 |
20150073672 | VEHICLE CONTROL APPARATUS - A control apparatus is applied to a vehicle. The vehicle has an internal combustion engine and a variable inertia flywheel provided on an output shaft of the internal combustion engine. The control apparatus decreases supply current to the electromagnetic coil while controlling the internal combustion engine so that a torque of the internal combustion engine is reduced while maintaining power output from the internal combustion engine, in a case determining that temperature of the electromagnetic coil is higher than a first determination temperature when: the internal combustion engine is being operated; and a main body and a ring member of the variable inertia flywheel are being connected by the current supplied to the electromagnetic coil. | 03-12-2015 |
20150112533 | CONTROL APPARATUS FOR HYBRID VEHICLE - A control apparatus for a hybrid vehicle configured to control the hybrid vehicle provided with: an engine; a flywheel with a variable inertial mass; a rotary electric machine; a regenerating device; and an electricity storage device which is charged by regenerative power of the rotary electric machine and regenerative power of the regenerating device, is provided with: a reduction control device configured to reduce the number of engine revolutions to a stop allowable number of revolutions or less; a stop control device configured to stop the engine after the number of engine revolutions is reduced to the stop allowable number of revolutions or less; a specifying device configured to specify allowable charging power of the electricity storage device at the time of the stop demand; and an inertia control device configured to reduce the inertial mass with decreasing the specified allowable charging power. | 04-23-2015 |
20150283992 | CONTROL APPARATUS FOR HYBRID VEHICLE - Control apparatus for controlling hybrid vehicle having planetary gear train including first gear coupled to first rotating electrical machine, carrier coupled to input shaft having ejecting hole, input shaft being coupled to engine shaft of engine via torque limiting mechanism which allows input shaft to skid against engine shaft depending on variation of torque between input shaft and engine shaft, and second gear coupled to drive shaft which is coupled to second rotating electrical machine, and rotation limiting mechanism which prevents engine shaft from rotating in another direction, drives first rotating electrical machine to output torque for rotating input shaft in another direction when ejecting hole with engine stopped does not extend in predetermined direction in which ejecting hole can eject oil to mechanism portion of planetary gear train which locates vertically above input shaft. | 10-08-2015 |
20150307080 | CONTROL SYSTEM OF HYBRID VEHICLE - A control system is provided in a vehicle including an internal combustion engine, a second MG, and a first MG. The control system starts the engine when required vehicle output becomes equal to or larger than a predetermined start threshold value, and stops the engine when the required vehicle output becomes equal to or smaller than a predetermined stop threshold value. The control system controls the engine so that output power equal to or larger than a predetermined output lower-limit value is generated, during a period from the time when the required vehicle output becomes equal to or larger than the predetermined start threshold value to the time when the required vehicle output becomes equal to or lower than the predetermined stop threshold value. The predetermined output lower-limit value is set to the predetermined start threshold value used when the required vehicle output becomes equal to or larger than the predetermined start threshold value. | 10-29-2015 |
Patent application number | Description | Published |
20090145382 | Control apparatus for an internal combustion engine and method for controlling the same - In a control apparatus for an internal combustion engine having a valve timing control portion controlling the timing opening and closing of an intake valve disposed in an intake port communicating with a cylinder of the internal combustion engine, when the internal combustion engine is being started from a cold condition, multi-stroke operation is set, in which one combustion cycle of the internal combustion engine includes two or more intake and compression strokes, formed by a first intake stroke and the first compression stroke and a second intake stroke and compression stroke, followed by a combustion stroke and an exhaust stroke. The valve timing control portion controls a lift of the intake valve during the first intake stroke and the first compression stroke to a low lift amount, which is smaller than the normal lift amount required for intake of a requested intake air amount, and controls the lift of the intake valve in a second intake and a second compression stroke to the normal lift amount. | 06-11-2009 |
20090292441 | Control Apparatus for Internal Combustion Engine - A control apparatus ( | 11-26-2009 |
20140007841 | CONTROL APPARATUS FOR INTERNAL COMBUSTION ENGINE - A control apparatus for an internal combustion engine is provided, which can favorably suppress an occurrence of abnormal combustion in the case of including a fuel injection valve capable of injecting a fuel by dividing the fuel in any desired number of times of division by using at least one of an intake stroke and a compression stroke. | 01-09-2014 |
20140053813 | CONTROL APPARATUS FOR INTERNAL COMBUSTION ENGINE - Provided is a control apparatus for an internal combustion engine, which can adequately perform the control of a fuel injection amount even when an abnormality, a disconnection or the like of a fuel pressure sensor occurs and thereby accurate fuel pressure information is not able to be obtained. | 02-27-2014 |
Patent application number | Description | Published |
20090073304 | IMAGING APPARATUS, IMAGING APPARATUS CONTROL METHOD, AND COMPUTER PROGRAM - A data processing device includes: a face-detecting unit to detect a face region from an input image input from an imaging unit which images a subject including a face; a setting unit to calculate subject distance based on the face size of the face detected by the face-detecting unit, and set limits as a focus lens operation range before and after a focus lens position with the calculated subject distance as focal distance; a detecting unit to move a focus lens within the limits set by the setting unit, and detect a focal point where a detection value corresponding to the contrast intensity obtained from a face frame including the face detected by the face-detecting unit is not smaller than a threshold; and a control unit to determine, in a case wherein a focal point has been detected within predetermined set time, the focal point thereof as a focus position. | 03-19-2009 |
20120133822 | IMAGING APPARATUS AND METHOD - The present invention relates to an imaging apparatus and method capable of improving operability regarding a zooming operation and suppressing the photographing of an unstably focused image. A zoom information acquisition section | 05-31-2012 |
20140320704 | IMAGING APPARATUS, METHOD OF CONTROLLING THE SAME, AND PROGRAM - An imaging apparatus includes a control unit. The control unit performs control to set a first mode or a second mode based on a predetermined condition. The first mode is the mode for performing an auto focus process by moving a focus lens based on the contrast in an image generated by an imaging unit. The second mode is the mode for performing an auto focus process by moving the focus lens based on the result of a matching process performed between a first image and a second image that are generated by the imaging unit with the focus lens being located in different positions. | 10-30-2014 |
20140327812 | IMAGING APPARATUS, METHOD OF CONTROLLING THE SAME, AND PROGRAM - Fast Focus control is to be performed. | 11-06-2014 |
20150215521 | AUTO FOCUS CONTROL OF IMAGE CAPTURING APPARATUS - An image capturing apparatus includes: a system selector configured to select either one of a focus control of a contrast system in which a wobbling motion is performed for detection and a focus control of a different system that is different from the focus control of the contrast system; and a controller configured to set a first wobbling amount for the focus control of the different system to be smaller than a second wobbling amount for the focus control of the contrast system. | 07-30-2015 |
Patent application number | Description | Published |
20150360583 | CONTROL APPARATUS FOR VEHICLE MOTOR - A control apparatus for a vehicle motor is provided with: a characteristic switching device configured to switch a characteristic of a motor between a first characteristic in which the output upper limit is first predetermined torque and a second characteristic in which the output upper limit is second predetermined torque, which is smaller than the first predetermined torque; a characteristic determining device configured to determine whether the characteristic of the motor is the first characteristic or the second characteristic; and a characteristic controlling device configured to control the characteristic switching device to switch the characteristic of the motor to the first characteristic and to start the motor with the first characteristic at a next start of the driven body if it is determined that the characteristic of the motor is not the first characteristic. | 12-17-2015 |
20160001761 | CONTROL APPARATUS FOR VEHICLE MOTOR - A control apparatus for a vehicle motor is a control apparatus for a vehicle motor configured to control a motor that can realize a plurality of characteristics in which output upper limits of torque are different from each other. The control apparatus for the vehicle motor is provided with: a characteristic switching device configured to switch a characteristic of the motor between a first characteristic in which the output upper limit is first predetermined torque and a second characteristic in which the output upper limit is second predetermined torque, which is lower than the first predetermined torque; a characteristic switching abnormality determining device configured to determine whether or not there is an abnormality in switching of the characteristic of the motor; and a fail-safe performing device configured to perform a fail-safe process according to the characteristic of the motor if it is determined that there is the abnormality in the switching of the characteristic of the motor. | 01-07-2016 |
20160069316 | START CONTROL APPARATUS - A start control apparatus is provided with: a crank angle sensor configured to output a signal in association with rotation of an output shaft of an internal combustion engine; a resolver configured to detect a rotor angle, which is an angle position of a rotating shaft of a motor; and a controlling device configured to perform start control associated with the internal combustion engine on the basis of a temporary crank angle, from a start of the internal combustion engine until determination of a crank angle in starting of the internal combustion engine, wherein the temporary crank angle is an estimated value calculated by adding a value according to the outputted signal to a stop angle, which is an angle based on the rotor angle detected at a previous stop of the internal combustion engine. | 03-10-2016 |
Patent application number | Description | Published |
20150375737 | VEHICLE DRIVE DEVICE - A first rotating machine and a second rotating machine, a first travel mode, in which one rotating machine of the first rotating machine and the second rotating machine is used as a power source, and a second travel mode, in which the first rotating machine and the second rotating machine are used as the power sources, are provided. Regarding at least one rotating machine of the first rotating machine and the second rotating machine, when transition from one of the first travel mode and the second travel mode to the other is made, a degree of change in a torque command value for said rotating machine is higher in the case where said rotating machine newly becomes the power source in a travel mode after transition than in the case where said rotating machine is used as the power source in a travel mode before transition. | 12-31-2015 |
20160001764 | VEHICLE DRIVE DEVICE - A first rotating machine and a second rotating machine are provided. Total torque of a torque command value of the first rotating machine and a torque command value of the second rotating machine is set higher than requested torque for a vehicle when transition from a first travel mode, in which one of the first rotating machine and the second rotating machine is used as a power source, to a second travel mode, in which the first rotating machine and the second rotating machine are used as the power sources, is made. The torque command value of the rotating machine, which is used as the power source in the first travel mode, during the transition from the first travel mode to the second travel mode may be set higher than the torque command value before beginning of the transition. | 01-07-2016 |