Patent application number | Description | Published |
20100065031 | CONTROL DEVICE FOR ENGINE - A control device for an engine includes an air-fuel ratio detector detecting an air-fuel ratio of an exhaust gas of the engine. A feedback controller performs a feedback control of an amount of a fuel injection of mixed fuel including alcohol so that the air-fuel ratio detected by the air-fuel ratio detector is come close to a target air-fuel ratio, the mixed fuel supplied from a fuel feeder. A concentration estimator estimates a concentration of the alcohol in the mixed fuel based on the air-fuel ratio of the exhaust gas and a correction amount for the amount of the fuel injection controlled by the feedback control. A malfunction determiner determines that the fuel feeder has a malfunction when the correction amount is greater than or equal to a value for a period which is longer than a first period in a second period. The second period is from a first time point when the feedback controller starts to perform the feedback control. | 03-18-2010 |
20140180515 | TRAVELING MODE SWITCHING CONTROLLER OF HYBRID ELECTRIC VEHICLE - A traveling mode switching controller of a hybrid electric vehicle has a state-of-charge detection unit; a driver request output detection unit; a correction unit; and a switching control unit for controlling a switch from a first traveling mode to a second traveling mode when a vehicle request output exceeds an output threshold value. In the first traveling mode, an engine is deactivated and the drive motor is activated. In the second traveling mode, drive wheels are actuated by means of driving power of the engine, or a generator connected to the engine is activated to generate electric power to activate the drive motor to actuate the drive wheels. The switching control unit sets the output threshold value low as the state of charge decreases, thereby changing conditions for switching the first traveling mode to the second traveling mode. | 06-26-2014 |
20140180516 | TRAVELING MODE SWITCHING CONTROLLER OF HYBRID ELECTRIC VEHICLE - A traveling mode switching controller of a hybrid electric vehicle has a velocity detection unit, a state-of-charge detection unit, and a switching control unit for selectively switching among first to third traveling modes. In the first traveling mode, an engine is deactivated and a drive motor is activated to actuate drive wheels. In the second traveling mode, the engine activates a generator to activate the drive motor. In the third traveling mode, the engine activates the drive wheels. When the state of charge is less than a first state of charge, the switching control unit performs switching between the second traveling mode and the third traveling mode at a first velocity. When the state of charge is the first state of charge or more, the switching control unit performs switching between the first traveling mode and the third traveling mode at a predetermined velocity higher than the first velocity. | 06-26-2014 |
20140194246 | CONTROL DEVICE FOR HYBRID VEHICLE - In a series mode, a clutch rotational speed difference ΔN is calculated, and when the clutch rotational speed difference ΔN is within a first predetermined range R1, it is determined whether a sticking determination timer t indicates a first predetermined time t1 or longer. When a closed sticking timer t indicates the first predetermined time t1 or longer, fuel cut is performed, and the clutch rotational speed difference ΔN is re-calculated. When the closed sticking timer t indicates a second predetermined time t2 or longer, and the clutch rotational speed difference ΔN is within a second predetermined range R2, it is determined that there is closed sticking of a clutch. When the closed sticking timer t indicates less than the time t2, and the clutch rotational speed difference ΔN is out of the second predetermined range R2, it is determined that there is no closed sticking of the clutch. | 07-10-2014 |
20140195084 | ENGINE OPERATION CONTROL DEVICE FOR HYBRID VEHICLE - An engine operation control device for a hybrid vehicle, including: an engine provided in a vehicle; a power generator that is driven by the engine to generate electric power; a driving battery that is chargeable with electric power supplied from the power generator; and a front motor and a rear motor that drive drive wheels with electric power supplied from the driving battery or the power generator, and allowing a series mode in which the front motor drives front wheels and the rear motor drives rear wheels while the engine is operated at a predetermined set rotational speed to drive the power generator to generate electric power, wherein the set rotational speed is set to increase with decreasing of the atmospheric pressure in a present position of the vehicle in the series mode. | 07-10-2014 |
20160059844 | REGENERATIVE CONTROL DEVICE FOR HYBRID VEHICLE - A regenerative control device for a hybrid vehicle includes a regenerative braking power control unit prohibiting or limiting execution of first regenerative braking to charge the battery with power generated by the regenerative power generation of the traveling motor generator during deceleration when it is determined that it is necessary to restrict charging of the battery. The regenerative braking power control unit causes both second regenerative braking to transmit rotary driving power to the engine by rotating the power generation motor generator by the power generated by the regenerative power generation, and combustion operation in which fuel is supplied to the engine and the fuel is burned to generate the rotary driving power at the engine, to be executed, under condition where the execution of the first regenerative braking is prohibited or limited. | 03-03-2016 |
20160059857 | REGENERATIVE CONTROL DEVICE FOR HYBRID VEHICLE - A regenerative control device for a hybrid vehicle includes a regenerative braking power control unit prohibiting or limiting execution of first regenerative braking to charge the battery with power generated by the regenerative power generation of the traveling motor generator during deceleration when it is determined that it is necessary to restrict charging of the battery. Under condition where the execution of the first regenerative braking is prohibited or limited, the regenerative braking power control unit causes second regenerative braking to transmit rotary driving power to the engine by rotating the power generation motor generator by the power generated by the regenerative power generation, to be executed when the operation unit is set to a regeneration level in an increasing direction, and causes the second regenerative braking to be stopped when the operation unit is set to a regeneration level in a decreasing direction. | 03-03-2016 |
Patent application number | Description | Published |
20090065182 | COOLING DEVICE - There is provided a cooling device which includes a plurality of cooling modules | 03-12-2009 |
20090080155 | ELECTRIC POWER CONVERSION APPARATUS - In a conventional cooling device, a heat pipe or a circulation-type liquid cooler provided with a pump is used and therefore, a large space is needed for the cooling device. There is provided a cooling device which includes a plurality of cooling modules | 03-26-2009 |
20100051240 | VARIABLE CONDUCTANCE HEAT PIPE - A variable conductance heat pipe is provided. The variable conductance heat pipe includes a sealed container in which a working fluid and a noncondensable gas are sealed, the sealed container extending in an axial direction. The sealed container includes one end to be connected to a heating source and a part to be connected to a heat sink. On a cross section of the sealed container along a direction orthogonal to the axial direction, a portion having water conveying property better than other portions is provided. The portion having the better water conveying property extends in the axial direction. | 03-04-2010 |
20100051254 | VARIABLE CONDUCTANCE HEAT PIPE - A variable conductance heat pipe is provided. The variable conductance heat pipe includes a sealed container in which a working fluid and a noncondensable gas are sealed. The sealed container includes a heat receiving portion to which an element to be cooled is provided, and heat radiating portion. An amount of heat is supplied to the heat receiving portion when the element to be cooled is in a waiting state. | 03-04-2010 |
20110179806 | COOLING APPARATUS - Disclosed is a cooling apparatus including: a heat receiving plate to which a plurality of heating elements are attached; a radiator plate to which a plurality of Peltier devices are attached; a thermal transport heat pipe that couples the heat receiving plate with the radiator plate; and a heat dissipating device being provided on an exothermic side of the Peltier devices; wherein the plurality of heating elements are arranged along a longitudinal direction of the thermal transport heat pipe, and the plurality of Peltier devices are arranged along the longitudinal direction of the thermal transport heat pipe, whereby, when using a plurality of Peltier devices, reducing power consumption thereof by equalizing each operation of the respective Peltier devices. | 07-28-2011 |
20110181842 | LIGHT SOURCE APPARATUS AND PROJECTOR TYPE IMAGE DISPLAY APPARATUS - The present invention is directed to provide a light source apparatus that includes space-saving LED cooling unit, and a projector type image display apparatus including the same. The light source apparatus of the present invention includes a plurality of LEDs, a plurality of heatsinks that are respectively thermally coupled to the LEDs and that are disposed in series with an interval between each other, and a cooler mechanism that sends a cooling airflow into the heatsinks along their disposition direction. A heatsink included in the plurality of heatsinks that dissipates the heat of an LED having a greater heat generating amount out of the plurality of LEDs is disposed downstream in the cooling airflow from the other heatsink. | 07-28-2011 |
20130081798 | HEAT SINK, AND METHOD FOR PRODUCING SAME - A heat sink including a base section, connection fins, and parallel fins. The base section includes: a first base plate configured to be mounted with a heat generating component on its outer surface; a second base plate disposed to face the first base plate in a parallel manner, configured to be mounted with a heat generating component on its outer surface; and a third base plate disposed perpendicular to the first base plate and the second base plate, which secures the first base plate and the second base plate along a junction line. The base section includes first and second regions arranged in the direction of the junction line. The connection fins are disposed on the first region to connect inner surfaces of the first and second base plates and to be parallel to the third base plate, and the parallel fins are disposed on the second region from an inner surface of the third base plate to be parallel to the first base plate. | 04-04-2013 |
20130258666 | LIGHT SOURCE DEVICE - A light source device includes an outer housing, a partitioning member for forming a multi-stage structure in the outer housing, thereby partitioning each stage, a plurality of light source units disposed in respective stages of the outer housing, each of which has light source members and a heat pump unit for cooling the light source members, an opening portion for taking air acting as cooling air to be supplied to a cooling body from an outer part of the outer housing into an inner part thereof, and an opening portion formed along arrangement of the light source units in the partitioning member. | 10-03-2013 |
20140318736 | COOLING DEVICE FOR UNDER-FLOOR DEVICE FOR VEHICLE - A cooling device includes a base plate to a rear surface side of which an under-floor device is attached; a heat radiating unit attached to a front surface side of the base plate and radiating heat conducted from the under-floor device via the base plate; a cover surrounding the heat radiating unit and including a side opening capable of causing traveling wind to flow therein and thereout, in opposite side surfaces facing a traveling direction of a vehicle; and an guide plate guiding traveling wind flowing in from the side opening to the heat radiating unit by blocking at least part of a gap area between a surface connecting the opposite side surfaces and the heat radiating unit, the guide plate being provided in a side gap area between a side surface of the cover and the heat radiating unit on a traveling-wind flow-in side. | 10-30-2014 |
Patent application number | Description | Published |
20080223556 | PUMP-FREE WATER-COOLING SYSTEM - A pump-free water-cooling system is provided wherein external power supply is not involved; heat can be transported in any direction; and high reliability and low thermal resistance are ensured. | 09-18-2008 |
20090071631 | VAPOR-LIFT PUMP HEAT TRANSPORT APPARATUS - A vapor-lift pump heat transport apparatus having a small heat resistance and a large heat transport capacity. A heat exchange circulating solution container has a first space and a second space communicating with the first space through a communication opening and contains a heat exchange circulating solution, and vapor thereof, in each space. A circulating solution transport passage includes a pipe connected to the solution outlet of the container and provided with a sensible heat releasing heat exchanger, a pipe disposed in the container, and a pipe connected to a vapor-liquid two-phase fluid inlet and provided with a heating heat exchanger. A vapor-liquid two-phase fluid flows into only the first space through the vapor-liquid two-phase fluid inlet. When the entrance of the vapor-liquid two-phase fluid has caused a pressure difference between the first and second spaces, a difference occurs between the positions of the vapor-liquid interfaces in the first and second spaces. | 03-19-2009 |
20090080159 | HEAT SINK AND COOLING UNIT USING THE SAME - A heat sink including a compact cooling system, superior uniformity of heating, provides a compact cooling unit superior in uniformity of cooling. A heat sink includes a header for distribution connected to a cooling fluid inlet, a header for confluence connected to a cooling fluid outlet and parallel to and adjacent to the header for distribution and a heat transfer vessel including a heating element mounting surface as well as channels inside. The channels are connected to the header for distribution and the header for confluence. | 03-26-2009 |
20090114372 | HEAT SINK - A heat sink includes a heat-transfer container incorporating a flow path through which a cooling fluid flows, for cooling a heating element in contact with the heat-transfer container The flow path includes a first cross-sectional portion that becomes narrower as the distance between a given point in the flow path and a side of the heat-transfer container which makes contact with the heating element becomes longer in a direction perpendicular to the direction in which the cooling fluid flows, and a second cross-sectional portion that is approximately constant in the direction perpendicular to the direction in which the cooling fluid flows. The first cross-sectional portion and the second cross-sectional portion alternately continue in the direction in which the cooling fluid flows causing a three-dimensional flow so the heat-transfer properties are enhanced with a simplified structure. | 05-07-2009 |
20100232110 | COOLING APPARATUS AND POWER CONVERTER - A cooling apparatus with high strength and good heat radiation characteristics. In the cooling apparatus, a heat exchanger is joined to an evaporator disposed on the lower side in a face to face manner; a containing unit of the heat exchanger includes a heat exchanger high temperature liquid outlet, and a two-phase fluid inlet in a joint portion with the evaporator; an outlet header of the heat exchanger includes an intermediate liquid outlet at a joint portion with the evaporator; and the evaporator includes a two-phase fluid outlet in the joint portion with the heat exchanger in opposition to the two-phase fluid inlet of the containing unit, and including an intermediate liquid inlet at the joint portion with the heat exchanger in opposition to the intermediate liquid outlet of the outlet header. | 09-16-2010 |
20120024513 | COOLING STRUCTURE, HEATSINK AND COOLING METHOD OF HEAT GENERATOR - A cooling structure includes a heat dissipation structure having a heat generator and a heatsink that is adhered through an insulating adhesive layer to at least a surface of the heat generator that faces a cooling fluid and made of a metal foil having the flexibility. A fluid flow path is disposed outside of the heat dissipation structure so that the cooling fluid flowing inside thereof and the heatsink may directly come into contact. Further, a fine recess is disposed on a surface of the heatsink that directly comes into contact with the cooling fluid. | 02-02-2012 |
Patent application number | Description | Published |
20100059030 | Stratified Scavenging Two-Cycle Engine - A stratified scavenging two-cycle engine that has a simpler structure than conventional stratified scavenging two-cycle engines and that has an excellent blow-by prevention effect etc. In an air intake stroke, lead air passes a lead-air port ( | 03-11-2010 |
20120260900 | STRATIFIED SCAVENGING TWO-CYCLE ENGINE - A laminar-scavenging two-cycle engine which has a high laminar-scavenging effect, includes a scavenging passage having a crankcase side portion extending along a crankcase, and a cylinder side portion extending along a cylinder and having a length larger than the sum of the diameter and stroke of the cylinder. An ambient air introducing passage for introducing leading air into the scavenging passage is connected to an intermediate portion of the scavenging passage. A notch for opening a scavenging port to the side of the crankcase when a piston is near the top dead center is formed in the piston. | 10-18-2012 |
20150184595 | ENGINE-POWERED WORK TOOL PROVIDED WITH WIND GOVERNOR THAT PERFORMS IGNITION CONTROL - An engine-powered work tool includes an engine having a crank shaft, an ignition system, an output controller having a throttle valve shaft for controlling output of the engine, a wind governor connected to the throttle valve shaft, a rotation speed detector and an ignition control unit. The wind governor includes a governor plate movable upon receipt of cooling air generated by a cooling fan to control an angular rotation of the throttle valve shaft. The rotation speed detector detects a rotation speed of the crank shaft. The ignition control unit controls the ignition system based on the rotation speed of the crank shaft detected by the rotation speed detector to reduce the output of the engine when the rotation speed detector determines that the governor plate exceeds a predetermined position. | 07-02-2015 |
20150184596 | ENGINE-POWERED WORK TOOL PROVIDED WITH WIND GOVERNOR AND MECHANISM FOR INCREASING ENGINE OUTPUT - An engine-powered work tool includes an air-cooled engine having a crank shaft, an engine output controller, a wind governor including a governor plate, and a throttle-opening assisting mechanism. The engine output controller includes a throttle valve shaft angularly rotatable about its axis for controlling a rotation speed of the crank shaft based on the angular rotation of the throttle valve shaft. The governor plate is connected to the throttle valve shaft for receiving cooling air generated by a cooling fan connected to the crank shaft. The wind governor controls angular rotation of the throttle valve shaft based on an amount of the received cooling air. The throttle-operation assisting mechanism causes the throttle valve shaft to angularly rotate in a direction to increase the output of the engine within a prescribed rotation speed range, the operation by the throttle-operation assisting mechanism being predominant over the control by the wind governor. | 07-02-2015 |
Patent application number | Description | Published |
20120120287 | IMAGE OUTPUTTING APPARATUS, IMAGE OUTPUTTING METHOD, IMAGE PROCESSING APPARATUS, IMAGE PROCESSING METHOD, PROGRAM, AND IMAGE PICKUP APPARATUS - The present disclosure provides an image outputting apparatus, including, an image pickup section, an error correction code calculation section adapted to calculate an error correction code using pixel data, which configure an image obtained by image pickup by the image pickup section, as an information word, and an outputting section adapted to output coded data, which are data of a codeword obtained by adding the error correction code to the pixel data, to an image processing apparatus provided in an apparatus in which the image outputting apparatus is provided. | 05-17-2012 |
20120120289 | IMAGE OUTPUTTING APPARATUS, IMAGE OUTPUTTING METHOD, IMAGE PROCESSING APPARATUS, IMAGE PROCESSING METHOD, PROGRAM, DATA STRUCTURE AND IMAGING APPARATUS - An image outputting apparatus includes a header production section for producing a header including header information formed from first and second frame information regarding whether pixel data included in a payload are of first and last lines of one frame, respectively, first line information regarding whether or not the pixel data included in the payload are valid, and second line information regarding a line number of a line formed from the pixel data included in the payload, and an error detection code for use for detection of an error of the header information. A packet production section produces a packet which includes, in the payload thereof, pixel data for one line which configure an image obtained by imaging by an imaging section and to which the header is added. An outputting section outputs the produced packet to an image processing apparatus. | 05-17-2012 |
20120131422 | TRANSMITTING DEVICE, TRANSMITTING METHOD, RECEIVING DEVICE, RECEIVING METHOD, PROGRAM, AND TRANSMISSION SYSTEM - A transmitting device includes a setting unit that sets the data length of an error correcting code whose data length is variable, an error correcting code calculator that calculates the error correcting code having the data length set by the setting unit for transmission-subject data as an information word, and a transmitting unit that transmits, to a receiving device existing in the same device, coded data that is data of a codeword obtained by adding the error correcting code obtained by calculation by the error correcting code calculator to the transmission-subject data. | 05-24-2012 |
Patent application number | Description | Published |
20080238825 | Plasma Display Device - An electrode drive circuit of a plasma display device includes a scan driver provided with plural drivers having first and second switching elements and first and second diodes, and a positive reset pulse generating circuit by which a first superposed voltage obtained by applying a predetermined first voltage to a low potential side terminal of the second switching element and superposing the first voltage and a voltage between a high potential side terminal of the first switching element and the low potential side terminal of the second switching element is generated to the high potential side terminal of the first switching element. The first superposed voltage is applied to the electrodes via the first switching element. | 10-02-2008 |
20080238908 | Driving circuit device of plasma display panel and plasma display apparatus - In this PDP apparatus, in a sustain driving circuit device for supplying sustain discharge pulses, an energy recovery circuit has a coil, switches, and diodes, and a Vs clamp circuit has switches. In the energy recovery circuit, the switches are connected to a panel capacitor, and the coil is connected to a power source line with an intermediate potential of Vs, and a clamp diode and a power source connected thereto are connected to a node between the coil and the switch. As a control timing, at a timing of less than π/2 of an LC resonance current cycle, the switch of the energy recovery circuit is turned OFF and then the switch of the Vs clamp circuit is turned ON, thereby performing the Vs clamp. | 10-02-2008 |
20120001836 | PLASMA DISPLAY DEVICE - An electrode drive circuit of a plasma display device includes a scan driver provided with plural drivers having first and second switching elements and first and second diodes, and a positive reset pulse generating circuit by which a first superposed voltage obtained by applying a predetermined first voltage to a low potential side terminal of the second switching element and superposing the first voltage and a voltage between a high potential side terminal of the first switching element and the low potential side terminal of the second switching element is generated to the high potential side terminal of the first switching element. The first superposed voltage is applied to the electrodes via the first switching element. | 01-05-2012 |
20120007847 | PLASMA DISPLAY DEVICE - An electrode drive circuit of a plasma display device includes a scan driver provided with plural drivers having first and second switching elements and first and second diodes, and a positive reset pulse generating circuit by which a first superposed voltage obtained by applying a predetermined first voltage to a low potential side terminal of the second switching element and superposing the first voltage and a voltage between a high potential side terminal of the first switching element and the low potential side terminal of the second switching element is generated to the high potential side terminal of the first switching element. The first superposed voltage is applied to the electrodes via the first switching element. | 01-12-2012 |
Patent application number | Description | Published |
20100096943 | Motor and electric power steering apparatus - A motor includes: a stator having 12n teeth at equal intervals in a circumferential direction of the motor, with a coil being formed on each of the teeth, where n is a natural number; a rotor having magnetic poles, number of magnetic poles being one of 2n, 10n and 14n, where n is a natural number; a three phase first coil group formed by star-connecting the coils formed on the odd-numbered teeth; and a three phase second coil group formed by delta-connecting the coils formed on the even-numbered teeth, connected to the three phase first coil group in parallel. | 04-22-2010 |
20100101889 | Electric power steering system - In an electric power steering system, a motor drive controller that has an inverter circuit board and a control circuit board housed in a control case is provided so as to overlap a control case fixation surface formed at an end portion of a gear housing in the axial direction of a steering shaft, so that it is possible to reduce the projection in the axial direction of a motor as compared to the conventional one. In addition, a metallic board is used for the inverter circuit board and the inverter circuit board is fixed to the control case fixation surface so as to be in surface contact therewith, so that it is possible to efficiently dissipate the heat generated on the inverter circuit board into the gear housing and a fixation support plate. | 04-29-2010 |
20120098379 | BRUSHLESS MOTOR AND ELECTRIC POWER STEERING SYSTEM - A motor formed as a 10-pole 12-slot brushless motor includes: six delta-connected coils that are among twelve motor coils, and arranged in a circular pattern such that any two of the delta-connected coils, which are next to each other in the circumferential direction, are different in winding direction; and six star-connected coils that the remaining six motor coils, and arranged between the delta-connected coils by connecting one ends of the star-connected coils to respective six connection lines providing connection between the delta-connected coils such that any two of the star-connected coils, which are next to each other in the circumferential direction, are different in winding direction. Terminals of the star-connected coils are grouped into sets each including three terminals that are next to each other in the circumferential direction, and three-phase driving voltages are applied to the other ends of the star-connected coils in each set. | 04-26-2012 |