Abstract:
PROBLEM TO BE SOLVED: To prevent power generation performance from being degraded by oxidation of supporting carbon in a cathode-side catalyst, in leaving a fuel cell system unattended. SOLUTION: Molar quantities of hydrogen and oxygen in a fuel gas supply/discharge system and an oxidation gas supply/discharge system for a fuel cell 2 are calculated, and the molar ratios of hydrogen and oxygen capable of being chemically reacted in a fuel gas and an oxidation gas in stopping the fuel cell 2 are controlled to be set not smaller than 2. It is preferable that hydrogen is supplied to keep the molar ratio in response to the value of a cell voltage in the fuel cell 2. It is also preferable that an entrance valve 17 and an exit valve 18 for sealing the oxidation gas in a gas passage in the oxidation gas supply/discharge system is arranged in the gas passage. COPYRIGHT: (C)2008,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide an apparatus for further correcting output of acceleration sensors for vehicles and capable of accurately correcting the drift errors of the acceleration sensors. SOLUTION: On the basis of output of the acceleration sensors 90 and 92, when a means (166) for determining a linear cruse over a flat road at a constant speed has determined that a vehicle is cruising linearly over a flat road at a constant speed, the output of the acceleration sensors 90 and 92 is corrected at an acceleration correction means 168. Acceleration values from the acceleration sensors are thus advantageously and corrected accurately, in comparison with a conventional correction device which considers that a vehicle is linearly cruising, when the difference between right and left rotation speeds of the vehicle remains within a prescribed value and takes the output values of the acceleration sensors 90 and 92 at the time as drift errors. COPYRIGHT: (C)2006,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To provide a leg type robot and its walking control method, for performing stable walking without using a tiptoe sensor. SOLUTION: This leg type robot has a body trunk, a leg link rockably connected to the body trunk, a means 210 for storing tiptoe walking figure data for describing a change with the lapse of time of target tiptoe motion, a means 210 for storing body trunk walking figure data for describing a change with the lapse of time of target body trunk motion for realizing target ZMP for following a change in a target tiptoe position, a body trunk motion detecting means 218 for detecting actual body trunk motion, a deviation calculating means 312 for calculating a deviation between the target body trunk motion and the actual body trunk motion, a correction quantity calculating means 308 for determining a correction quantity on the basis of a predetermined transfer function from the calculated deviation, and a correcting means 306 for correcting data for describing the target body trunk motion on the basis of the determined correction quantity. COPYRIGHT: (C)2005,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To provide a fuel cell capable of improving a gas flow coming round to a portion directly under the projecting part of a diffusion layer, and capable of maintaining a gas flow velocity in the straight portion or the bent portion of a passage. SOLUTION: (1) This fuel cell is equipped with a separator 18 having a plurality of projecting parts 29 in the gas passage, and a groove 31 is provided on the top face of the projecting part 29. (2) The groove 31 is set up so that a collecting part 30 made by dividing the top face of the projecting part by the groove in the intra-surface direction have a uniform area. (3) The depth of the groove 31 is not less than an amount of a diffusion layer crushed when the diffusion layer is pushed by the collecting part 30. (4) The groove 31 has a first groove 31a and a second groove 31b obliquely intersecting to it. (5) The groove 31 is tilted in a direction along gas flow flowing a bent portion in the bent portion of the gas passage. (6) The groove 31 comprises a portion having a low step which is provided in a long land, and the area of the collecting part in the long land is made almost equal to the area of the collecting part in a short land. COPYRIGHT: (C)2005,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To solve a problem that an actual walking locus deviates from a walking locus specified by gait data due to the occurrence of a slip on a floor because flexure is generated to a walking robot. SOLUTION: This walking robot is provided with a gait data storage means 46; a joint angle group computing means 58 for computing a joint angle based on gait data; an actuator driving means 60 for adjusting to the joint angle computed by the joint angle group computing means; devices 4, 52, 54 for detecting the positions of a grounding foot; a device 56 for computing deviation between a position in which the grounding foot should be and a position in which the grounding foot is; and a device 48 for correcting subsequent gait data with the computed deviation. The robot continues walking while changing the relative attitude of a left leg link, the waist and a right leg link according the corrected gait data. COPYRIGHT: (C)2005,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To prevent spaces between metal thin wires constituting a shield member from being kept expanded. SOLUTION: This shield member 35 is provided with an elastic connection material 37 (elastic connection means) formed of a material having elasticity and integrated in a form connecting the metal thin wires 36a to one another for a braided wire 36. Even if external force is applied to the braided wire 36 due to insertion work of a wire 20 or interference of foreign matter to temporarily expand spaces 36b of the thin wires 36a, the spaces 36b of the thin wires 36a are brought back into a reduced state by the connection material 37 when the external force is removed, so that the spaces 36b of the thin wires 36a are prevented from being kept expanded. COPYRIGHT: (C)2004,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To provide a bipedal walking robot, allowed to stably walk by optimizing a gain in the case of using the so-called ZMP compensatory control in which a deviation between a target ZMP and an actual ZMP is multiplied by a gain to be converted to a trunk position correction vector, thereby controlling the target trunk position vector to be corrected, so that the robot flexibly responds to an encounter of an unexpected event to avoid falling. SOLUTION: Corresponding to the progress of walking operation, the gain is varied. For example, the gain is increased before and after a grounding point of time of the lower limb. Or the gain is increased or decreased corresponding to the grounding force of the robot. When ZMP compensatory control is needed, the control is strongly effected, and when not needed, the control is lightly effected (hardly effected). COPYRIGHT: (C)2004,JPO
Abstract:
PROBLEM TO BE SOLVED: To provide a fuel cell capable of correctly detecting cell fastening force. SOLUTION: For a solid polymer fuel cell stack 1 formed by laminating a plurality of cells 11, an end plate 10 is arranged at one end of the laminated body, and a movable plate 12, to which pressure is applied through a cylinder 13 and a cylinder pressing part 18 supported by an end plate 16 on the other end. The stack is fixed by a fastening rod 14, and the movable plate 12 is mounted to the fastening rod 14 so as to be able to move along the fastening rod 14. A cylinder pressing part 18 controls the pressure pressing the movable plate 12 through the cylinder 13 according to the order from an ECU 26 based on the pressure detected by a pressure detection means 19, and the pressure to the applied to the cells 11 is controlled. The pressure detection means 19 is arranged to at least one part of the laminated surfaces of the cells. By the above construction, the pressure applied to the cells 11 is properly controlled at all times. COPYRIGHT: (C)2004,JPO
Abstract:
PROBLEM TO BE SOLVED: To prevent output of an unintended torque from a motor, and to output more-stabilized motive power, if a changeover of the series and parallel connection of a plurality of capacitors is performed, when motive power is outputted from the motor using as a power source, a power unit whose voltage across terminals is adjustable by a changeover of the series and parallel connection of the capacitors. SOLUTION: A control unit 60 computes the time constant (charge and discharge characteristics) of a smoothing capacitor 38 from the electrostatic capacity of the smoothing capacitor 38 and the resultant resistance of a power unit 22 corresponding to command signals to switches SW1-SW3, estimates the voltage across the terminals of the smoothing capacitor 38 (a potential difference acting between the positive electrode bus-bar 32 and the negative electrode bus-bar 34 of an inverter circuit 30), on the basis of the time constant and the resultant voltage of the power unit 22 corresponding to the command signals to the switches SW1-SW3, generates a PWM signal using the estimated voltage so that a command torque is outputted from a motor 36, and outputs it to the inverter circuit 30.
Abstract:
PROBLEM TO BE SOLVED: To provide an air bag device for protecting a head part capable of rapidly developing and expanding a part of an air bag separating from an inflator, and securing a smooth opening operation of a door part of a garnish covering the part of the air bag separating from the inflator. SOLUTION: A gas inflow part 27 of the air bag 26 includes a gas supply passage 28 and an expansion shielding part 31 for covering a window W1. The expansion shielding part 31 includes a plurality of expansion parts 32, 33 arranged side by side in back and forth directions. The gas supply passage 28 includes a tip end extending part 30 capable of pressing and opening the door part 16 of a pillar garnish 10 provided on a tip end side separating from the inflator. A part on a tip end side separating from the inflator of an upper edge side peripheral edge 40a of the gas supply passage 28 includes downward guiding parts 41, 42 so as to flow gas G for inflation toward a side of each inflow port 34 of the plurality of expansion parts 32 excluding the tip end expansion part 33.