Abstract: A fuel cell of the invention has unified a processing circuit processing a cell voltage output signal of a fuel cell stack and a connector connecting an circuit unit with terminals provided extending from separators of the fuel cell, thereby having abolished connection points (in which harnesses are attached and detached) of an electrical circuit unit with the connector. So, for connection, reliability can be improved, and downsizing is possible. Moreover, with a casing enclosing the connector and electrical circuit unit, the fuel cell can be made compact and the processing circuit can be surely protected thanks to being shielded from surroundings, thereby handling as a unit being able to be facilitated.

Abstract: A fuel cell includes separators and electrolyte electrode assemblies in a first area between the separators. Each separator includes a first plate and a second plate stacked together to form a second area between the first plate and the second plate. The second area is divided by an outer ridge into a fuel gas channel, and an oxygen-containing gas channel. The fuel gas channel formed in one separator is connected to a fuel gas flow passage in the first area through fuel gas inlets for supplying a fuel gas to anodes. The oxygen-containing gas channel in the other separators is connected to an oxygen-containing gas flow passage in the first area through oxygen-containing gas inlets for supplying an oxygen-containing gas to cathodes.

Abstract: A device and method for extending the lifetime of a battery of a tire pressure sensor disposed in a tire are described, in which the battery can be recharged through the valve stem of the tire. The device includes an electrical power source and an electrode adapted to be coupled to the valve stem and supply power from the electrical power source to the valve stem.

Abstract: In the transmissions of the background art, two larger-diameter gears are mounted on a final shaft thereby causing an increase in weight of the transmission. The present invention reduces the weight of a transmission by mounting only one larger-diameter gear on a final shaft.

Abstract: An output compensating device capable of optimally compensating output signals of an image sensor composed of a number of light-sensor circuits, each of which represents a unit pixel and is capable of producing in a photoelectric converting element a sensor current proportional to a quantity of light falling thereon, converting the current into a voltage signal by a MOS type transistor with a logarithmic output characteristic in a weak inverse state, initializing itself by removing a charge accumulated in a parasitic capacitor of the photoelectric converting element by changing a drain voltage of the transistor to a value lower than a normal value for a specified time and outputting a pixel signal having a logarithmic characteristic at a large quantity of the sensor current and a pixel signal having a non-logarithmic characteristic at a small quantity of the sensor current.

Abstract: A simulator comprising computer-aided design programs for simulating a shift control algorithm stored in an ECU of an automatic transmission having hydraulic clutches. In the simulator, a simplified hydraulic model describes the entire system so as to design a third model based on which simulation is conducted. With this, by using such a simplified model, it becomes possible to decrease simulation time to 4 sec., enabling to simulation in a time close to an actual shift of approximately 1.5 sec. Moreover, the durability of transmission is tested by repeating the simulation. When the occurrence of undesirable shift phenomenon is forecast in the simulation, the shift control algorithm is corrected until the phenomenon disappears in the next simulation. With this, the manufacturing of a test transmission and a preliminary test are no longer needed, thereby further improving the efficiency and costs of transmission development.

Abstract: A fuel cell system for supplying electricity to a main motor as a power source includes a fuel cell stack and pumps for supplying a fuel gas and an oxygen-containing gas to the fuel cell stack. The fuel cell system further includes a driving force transmitting mechanism. The driving force transmitting mechanism connects the main motor, the pumps, and the supercharger for driving the pumps and the supercharger by the main motor.

Abstract: A fuel cell separator manufacturing method including the steps of removing an abnormal layer (91) arising at the surface layer of a metal material for use as a separator (20) when it is rolled, exposing portions of conductors (92) included in a surface layer part of the metal material itself to project, and carrying out a passivation treatment on the surface layer part of the metal material itself. The steps of removing the abnormal layer and exposing portions of the conductors are possible in the same process, chemically or electro-chemically. Therefore, the number of steps can be cut and increased productivity and reduced cost of separators can be achieved.

Abstract: A part mounting grommet comprises an outer grommet and an inner grommet inserted into the outer grommet and supported by the outer grommet, and supports a part provided with a mounting member beforehand on a vehicle main body. The outer grommet has a clearance in a radial direction with a mounting hole drilled in the vehicle main body, a first stopper stopped by the outer edge of one side of the mounting hole on one end thereof, and an elastically deformable first latching piece latched with the outer edge of the other side of the mounting hole. The inner grommet has a clearance in the radial direction with the outer grommet, a second stopper which abuts with the first stopper, and an elastically deformable second latching piece latched with the other end of the first stopper. The outer grommet and the inner grommet are respectively movable in the radial direction.

Abstract: A sealant rubber composition which forms a spongy tacky sealant layer having moderate viscosity properties; and a pneumatic tire having in the tire main body a tacky sealant layer obtained by heating the rubber composition. The rubber composition comprises 0.2 to 20 parts by weight of a peroxide per 100 parts by weight of polymers comprising 95 to 50 parts by weight of a polymer decomposable with the peroxide and 5 to 50 parts by weight of a polymer crosslinkable with the peroxide.

Abstract: An active noise control system is capable of canceling out noise in the passenger compartment of a vehicle based on low-frequency road noise. The active noise control system has a feed-forward control unit for being supplied with reference signals highly correlated to noise from a noise source and generating a noise cancellation signal which is out of phase to noise in the passenger compartment of the vehicle, and a canceling sound generating unit disposed in the passenger compartment for generating a noise canceling sound in response to the noise cancellation signal from said feed-forward control unit. The active noise control system also has microphones for generating reference signals which are positioned respectively near the base of the front seat, near the center of a roof, and within a trunk compartment, i.e., respectively at vibrational antinodes of a primary or secondary acoustic normal mode of the passenger compartment in the longitudinal direction thereof.

Abstract: A system, a method and a computer readable medium are provided for simulating a combined musculoskeletal and augmentation device system. The dynamics model of the combined musculoskeletal and augmentation device system receives computed torques at the joints as inputs and delivers simulated kinematic data of the segments as outputs. The augmentation device controller for control of the augmentation device, receives the simulated kinematic data as inputs and delivers assist torques as outputs. The inverse dynamics model for the musculoskeletal and augmentation device system, receives the simulated kinematic data, desired kinematic data of the segments and the assit torques as inputs and delivers the computed net joint torque and muscle torque. The muscle force and muscle capacity module for checking and adjusting the computed torques, receives the computed torques as inputs and delivers computed torques as outputs after the checking and adjustment.

Abstract: A lawn mower comprises a power source for rotatably driving an output shaft, a housing having an interior space having a generally spiral-shaped portion, and a cutting blade disposed in the interior space of the housing and connected to the output shaft for rotation therewith to cut grass. The rotating cutting blade coacts with the spiral-shaped portion of the interior space to generate a swirling air flow that causes the cut grass to swirl within the interior space. A grass discharge passage communicates with the interior space of the housing and discharges therethrough grass cut by the cutting blade and swirling within the interior space of the housing. A pivotal shutter is pivoted about a generally vertical axis by manual operation of a control member to open and close the grass discharge passage. The pivotal shutter comprises a pivotal shaft and a unitary shutter member mounted on the pivotal shaft to undergo pivotal movement therewith for opening and closing the grass discharge passage.

Abstract: A control system for a plant is disclosed. The control system includes a controller for controlling the plant based on a controlled object model which is obtained by modeling the plant. The controlled object model is modeled using an input and an output of the plant which are sampled at intervals of a sampling period which is longer than a control period of the controller. The sampled input of the plant is a filtered control output which is obtained by filtering an output of the controller. The controller carries out a control process of the plant at intervals of the control period.

Abstract: A method of forming a powder metal fractured bearing component, such as a connecting rod, includes the step of forming a component blank having a bearing aperture for separation of the component blank into a main body and a bearing cap, wherein the component has a hardness in the range of about HRC 22 to about HRC 34. The method also includes the steps of forming a stress riser in the blank where the fracture is to occur, and fracturing the component blank of the connecting rod into a main body and a bearing cap by applying tensile force thereto, in order to form a surface area ratio of >113% on the mating surfaces of the main body and the bearing cap.

Abstract: The present invention provides a production system capable of further improving production efficiency and quality. The ring management system comprises size measurement unit 300 for measuring size (l, t) of the ring w, first convey unit 400 for moving the ring w whose size has been measured, a first stocker 500 having a plurality of storage positions for storing rings conveyed in by the first convey unit 400, a second convey unit 700 for conveying out the rings from the first stocker 500 means for stacking, and a control unit 900.

Abstract: Provided is a method in which a communication state between a main control unit and each sub control unit can be judged to be normal or abnormal, in a condition where a noise may be generated from a drive system power line. This method includes a power supply step s4, a test communication step (see arrows (3) and (4)), and a judgment step s6. In the power supply step s4, power is supplied to first sub control units 2a from a drive system power source 6 while no power is supplied to actuators 7 from the power source 6. In the test communication step, communication of a test signal is performed between the main control unit 1 and each of the sub control units 2. In the judgment step s6, whether the communication state is normal or abnormal is judged based on the result of the communication of the test signal between the main control unit 1 and each of the sub control units 2.

Abstract: A journal of a crankshaft is rotatably supported by a journal-supporting portion of a cylinder block and a bearing cap. An arcuate oil guide groove is defined in a side face of the bearing cap, and coils which are portions of a stator of a generator or motor are fitted into an oil guide groove. Oil flowing down from an oil return passage provided in the cylinder block and oil flowing down from a blow-by gas passage, flow downwards from an upper end of the oil guide groove and return through an opening to an oil pan. In this process, the oil is brought into contact with the coils to cool the stator. Therefore, even if the stator is located above the oil stored in the oil pan, the stator having a raised temperature can be cooled efficiently, to thereby prevent degradation of the performance of the generator or motor.

Abstract: A door lifting apparatus includes a frame and a lift mechanism. The lift mechanism includes a slide and a lever. The slide includes a plurality of holders and a plurality of glides, wherein the holders are operable to engage and support a door while the glides cooperate with rails provided upon the frame to guide the slide along the rails. Pivotal movement of the lever moves the slide vertically relative to the upright supports, thereby raising or lowering the door.

Abstract: A vehicle electronic key system includes a control device mounted on a vehicle and an electronic key for transmitting a response signal in response to reception of a request signal from the control device. The control device includes means for outputting a request signal to the electronic key in response to the ON operation of a main switch of the vehicle (request signal generation means, a transmission circuit, and a transmission antenna), means for detecting a response signal from the electronic key (a reception circuit and response signal matching means), and means for performing an alarm output (monitoring means, a third drive circuit, and an alarm lamp) when no response signal is detected in spite of the output of the request signal.

Abstract: In a door checker for an automobile, including: a case; a check plate which movably extends through the case and which has on its opposite sides ball guide grooves extending in a lengthwise direction; a pair of ball holders accommodated in the case; a pair of balls which are retained in hemispherical ball housings of the ball holders and which are rollably engaged in the ball guide grooves; and a check spring for biasing the ball holders toward said check plate; and a recess for retaining a grease on an inner surface of each of the ball housings and for accommodating a dust therein is formed in the inner surface of each of the ball housings. Thus, the sticking of the balls due to an entering dust can be prevented, and the smooth rotation and rolling of the balls can be ensured over a long term.

Abstract: A legged mobile robot leg structure is provided in which a lower leg part (24) is connected to the lower end of an upper leg part (23) through a knee joint (27), a foot part (25) having a six-axis force sensor (60) is connected to the lower end of the lower leg part (24) through an ankle joint (28), and the ankle joint (28) supports the foot part (25) so that the foot part (25) can pitch around a lateral axis (Ly) and roll around a fore-and-aft axis (Lx) relative to the lower leg part (24). A pitch motor (34) for making the foot part (25) pitch around the lateral axis (Ly) is supported on the lower leg part (24) at a position above the ankle joint (28), and a roll motor (35) for making the foot part (25) roll around the fore-and-aft axis (Lx) is supported on the lower leg part (24) at a position above the ankle joint (28).

Abstract: In a hybrid vehicle in which front wheels are driven by an engine and a front motor, and rear wheels are driven by a main rear motor and a sub rear motor, both main rear motor and the sub rear motor are driven when a large driving force is required as when the vehicle is driven at low speed to haul a trailer or the like or to run on a sandy ground, whereas when the required driving force is small, only the main rear motor is driven.

Abstract: A briquette meeting required strength that is formed in an energy-saving manner from ferrous metal working scrap, such as grinding chips, and a method of making the briquette are provided. In a briquette formed by applying a pressing pressure to a ferrous metal working scrap, the percentage by weight of grinding chips is in the range of 10 wt % to 35 wt %. Viscous water-containing grinding chips crushed to a desired size and metal working scrap, such as gear cutting chips, are mixed in a feed hopper 7, and a pressing pressure is then applied to the raw mix by use of a compression pressing machine 8 to form a briquette B of ferrous metal working scrap. The content of a grinding fluid of the viscous water-containing grinding chips is 20 wt % to 60 wt %.

Abstract: A fuel cell stack which comprises a plurality of unit fuel cells laminated via separators, and is connected to external resistors each allowing a feeble current to flow to each unit fuel cell, whereby such problems as an open-circuit voltage generation and corrosion that may be caused by fuel gas remaining after operation shutdown can be resolved. A switch is preferably attached in series with an external resistor.

Abstract: A position detection apparatus that is able to easily detect self-position during autonomous movement by a humanoid robot that moves by the use of legs or automobile.

Abstract: A jig for positioning vehicular exterior parts, which can improve workability as well as accuracy of a mounting location. A jig 1 used when aching exterior parts to a vehicle 20 includes a first engagement portion 4 prescribing a location in a height direction of the vehicle 20, and a second engagement portion 5 prescribing a location in a direction orthogonal to the height direction of the vehicle 20. At least one of the first engagement portion 4 and the second engagement portions 5 is fixed between a vehicle body 22 and a door 21. The jig 1 is formed from a tabular member. As a result, positioning in mutually orthogonal two directions can be carried out simultaneously, simplifying attachment works.

Abstract: A product quality information control method including the act of feeding repair information for making a repair based on imperfection information found during an inspection process of a product back to a manufacture control department. The repair information includes graphic and character information indicative of the contents of the repair made by a repair person. As a result, it becomes possible for the manufacture control department to accurately grasp an imperfection found by an inspection department and a temporary measure taken to cure the imperfection.

Abstract: In a fuel cell assembly with at least one cell including an electrolyte layer, a pair of gas diffusion electrode layers interposing said electrolyte layer between them, and a pair of flow distribution plates (5) for defining passages (10, 11) for fuel and oxidizer gases that contact said gas diffusion electrode layers, a heater 62 and various sensors (61a, 61b and 61c) are formed on at least one of the flow distribution plates so that the work needed for installing the heater and sensors is simplified. By embedding them in a substrate, the need for a complex sealing arrangement can be eliminated. In particular, if each flow distribution plate is formed by performing an etching process on a substrate, and forming the heater and sensors in succession to the step of forming each flow distribution plate, the installation of sensors and fabrication of the fuel call are simplified.

Abstract: An apparatus for controlling the rigidity of vehicle body according to the present invention comprises a controller for controlling a buckling form, which controls the buckling form by adding to a member to be inputted to a collision load a lateral force in the direction substantially perpendicular to the member.

Abstract: A radio communication system for a vehicle which allows communication not only between a driver and a passenger of one vehicle but also with a driver or a passenger of another vehicle without increasing the scale of a radio communication apparatus to be mounted on a helmet. A radio wave signaled from a radio wave transmitter-receiver of a driver or a passenger of a vehicle is received by a repeating apparatus of the self-vehicle and amplified by and re-signaled from the repeating apparatus. The radio wave signaled from the repeating apparatus is received by a radio wave transmitter-receiver of a driver or a passenger of another vehicle and reproduced by a speaker. A radio wave signaled from the radio wave transmitter-receiver of the driver or a passenger of the vehicle is received by a repeating apparatus of the self-vehicle and amplified by and re-signaled from the repeating apparatus.

Abstract: First and second separators include first and second metal plates. The first metal plate has first embossed protrusions protruding toward a membrane electrode assembly to form an oxygen-containing gas flow passage. The second metal plate has second embossed protrusions protruding toward another membrane electrode assembly to form a fuel gas flow passage. Further, the second metal plate has third small embossed protrusions protruding toward the first metal plate.

Abstract: A personal watercraft includes a saddle ride type seat provided at a roughly central portion of a watercraft body, an engine mounted on the lower side of the seat and directed in a front-rear direction of the watercraft body, and cylinders provided in the engine are arranged in the front-rear direction of the watercraft body. First to fourth intake pipes communicated with the cylinders are extended from a side surface of the engine, and an air box containing the intake pipes is provided in a space between the engine and a left side wall. The air box includes a box main body and a cover body, and the cover body is disposed facing toward the left side wall. The left side wall facing toward the cover body is provided with an opening, and a side cover is provided to be capable of being fitted to and detached from the opening. Maintenance or inspection of intake system equipment can be easily carried out with the aforementioned personal watercraft.

Abstract: A control system for a plant is disclosed. The control system includes a controller which controls the plant based on a controlled object model which is obtained by modeling the plant. The controlled object model is modeled using an input and an output of the plant which are sampled at intervals of a period which is longer than a control period of the controller. The controller carries out a control process of the plant at intervals of the control period.

Abstract: An engine is supported on a vehicle body frame through an active vibration-isolating device. The vibration of the engine is prevented from being transmitted to the vehicle body frame by controlling the active vibration-isolating device. A speaker is disposed within a vehicle compartment. The noise is reduced by adaptively controlling the speaker based on a rotational speed of the engine and a noise detected by a microphone disposed within the vehicle compartment. Thus, the vibration and noise characteristics of the vehicle can be improved by a synergic effect of reducing both the vibration and the noise. Further, because the microphone is inexpensive and the speaker for an audio set can be used without any modification, the present invention can be achieved with a low cost.

Abstract: A landing shock absorbing device 18 disposed in a foot mechanism 6 of a leg of a robot, wherein an inflatable bag-like member 19 (a variable capacity element) is provided at a ground-contacting face side of the foot mechanism 6. The bag-like member 19 is constructed of an elastic material such as rubber and has a restoring force. An interior portion of the bag-like member 19 is communicated with the atmosphere side through a flow passage 20. During a landing motion of the leg, the bag-like member 19 makes contact with the ground to be compressed, and the air in the interior portion thereof flows out into the atmosphere through the flow passage 20, so that its outflow resistance is generated. Accordingly, a landing shock is reduced. In a lifting state of the leg, the restoring force of the bag-like member 19 allows the bag-like member 19 to be inflated while the air flows into the interior portion thereof.

Abstract: A structure of joining in a T shape two frame members of U-shaped cross sections having openings is provided. At a joint of the first frame member and the second frame member, a reinforcing member mounted with unfoamed resin is set within the first and second frame members. A foamed resin fills the spaces between the first and second frame members and the reinforcing member. The first and second frame members, foamed resin and reinforcing member are integrally united, having a high strength at the joint of the two frame members.

Abstract: A skeleton member structure having a tubular structural member (11, 211) filled with granular materials for absorbing impact energy. The granular materials includes a granular material having a hollow portion (12a, 212a) or a porous granular material. When the skeleton member receives an impact, the granular materials are deformed or collapsed, and impact energy is stably absorbed. Since the granular materials are hollow or porous, the weight of the skeleton member filled with the granular materials is reduced.

Abstract: A method for coating a sealant (39) on a separator (40) for a fuel cell. The separator has a sealing groove (118) formed therein, and widths of the sealing groove at a coating-start portion (39a) and a coating-end portion (39b) of the sealant are made greater than widths of remaining portions of the sealing groove. The sealant coating-start portion and the coating-end portion are made to intersect at a place where the width of the sealing groove is large. Adhesion between the coating-start portion and the coating-end portion is improved, and also, degrees of freedom of a sealant coated position increase, and sealability of a cell for a fuel cell is improved.

Abstract: A fuel cell stack which comprises a plurality of unit fuel cells laminated via separators, and is connected to external resistors each allowing a feeble current to flow to each unit fuel cell, whereby such problems as an open-circuit voltage generation and corrosion that may be caused by fuel gas remaining after operation shutdown can be resolved. A switch is preferably attached in series with an external resistor.

Abstract: A cylinder liner has an outer circumferential surface around which another metal is to be cast. The cylinder liner also has a plurality of protrusions disposed on the outer circumferential surface and having respective substantially conical undercuts or necks which are progressively spread outwardly from the outer circumferential surface. The protrusions have respective flat faces on the distal ends of the undercuts.

Abstract: A structure is provided for receiving and delivering oil from a first oil path in a wall of a casing to a second oil path within a rotating shaft supported by the casing on an inner side surface of the casing. A recess is formed in which the first oil path is opened. A collar is positioned on an inner peripheral surface of the recess. The collar is fitted in a floating state through an O-ring. On the inner peripheral surface of the collar an end portion of the rotating shaft is pivotally fitted to open the second oil path within the recess.

Abstract: A briquette meeting required strength that is formed in an energy-saving manner from ferrous metal working scrap, such as grinding chips, and a method of making the briquette are provided. In a briquette formed by applying a pressing pressure to a ferrous metal working scrap, the percentage by weight of grinding chips is in the range of 10 wt % to 35 wt %. Viscous water-containing grinding chips crushed to a desired size and metal working scrap, such as gear cutting chips, are mixed in a feed hopper 7, and a pressing pressure is then applied to the raw mix by use of a compression pressing machine 8 to form a briquette B of ferrous metal working scrap. The content of a grinding fluid of the viscous water-containing grinding chips is 20 wt % to 60 wt %.

Abstract: A fuel cell which can self-heat in a short time, in which no reaction gas is necessary for combustion, thereby improving the starting performance at low temperatures. The fuel cell comprises a cell structure in which an anode and a cathode are provided on either side of a solid polymer electrolyte membrane. This cell structure has a power generation plane and at least a part of the generation plane is defined as a local generation area so as to locally generate power. The fuel cell may include a pair of separators between which the cell structure is placed, and a reaction gas passage may be formed between the cell structure and each separator. One of a system for supplying a reaction gas to only a part of the reaction gas passage, and a system for supplying a reaction gas to the entire reaction gas passage is switchably selected.

Abstract: A first hemming mold unit (20) and a second hemming mold unit (30), are installed in a single pressing machine. The first hemming mold unit (20) performs partial bending of an edge (95) of a workpiece (93; 96). The workpiece (93; 96), having undergone the partial bending, is transferred to the second hemming mold unit (30), the second hemming mold unit (30) performs remaining necessary bending of the edge of the workpiece (93; 96). Here, predetermined bending of the edge (95) of the workpiece (93; 96) can be completed within the single pressing machine only by downward movement of upper molds (24, 34) of the first and second hemming mold units (20, 30), without having to use a cam and cam driver.

Abstract: A hydrogen purge control apparatus includes a fuel cell stack from which hydrogen is purged as necessary, a purged hydrogen dilution device which is disposed downstream of the fuel cell stack, and which has a chamber formed therein, a first inlet for purged hydrogen, a second inlet for air, and an outlet for diluted hydrogen, a regulator which is disposed between the fuel cell stack and the first inlet, and which is provided for regulating an amount of the purged hydrogen flowing into the purged hydrogen dilution device, and a control unit having a hydrogen concentration estimating section that is configured to estimate the hydrogen concentration at the outlet of the purged hydrogen dilution device based on an operating state of the fuel cell stack. The regulator is operated by the control unit depending on the hydrogen concentration estimated by the hydrogen concentration estimating section.

Abstract: There is provided a multi-finger hand device which can perform smooth bending and stretching operations of finger mechanisms in holding work of an object or the like while reducing the number of actuators as driving sources of the bending and stretching operations of the finger mechanisms. Wires 29a and 29b, and wires 30a and 30b extending from the finger mechanisms 2b to 2e biased to the stretching side by springs 16 or the like are joined to joining element 32 and 33, respectively. A wire 31 provided extensionally from the finger mechanism 2a is wound onto a pulley 36 and drawn from the base side of the hand 3. The joining elements 32 and 33 are rockably held by a holding element 43 via spindles 44 and 45. The holding element 43 is provided movably and rockably around a spindle 42. The pulley 36 is held by the holding element 43 and moves together with the holding element 43. By pulling the wire 31, the bending operations of the finger mechanisms 2a to 2e are performed collectively.

Abstract: In part inventory management, in order to accurately forecast future number of orders of parts for which order has, for example, fallen to one unit per month or fewer, low-order-rate parts whose order rates to have fallen below the predetermined level are extracted, a parameter indicating a characteristic of orders is determined and classification into multiple categories is conducted. Then, using the parameter, an order occurrence probability distribution is calculated for each category. Monte Carlo simulation is carried out based on the calculated order occurrence probability distributions to determine occurrence rate probability distributions of number of orders during a predetermined period, and the future number of orders of the low-order-rate parts are forecast based on the calculated occurrence rate probability distributions of number of orders during the predetermined period.

Abstract: A device and a method that permit easy and accurate determination of a walking condition regardless of differences in foot landing points on soles or lengths of legs of a walker are provided. According to this device, a measuring device measures a parameter indicating a displacement amount of a bottom end portion of a leg of the walker. A first storage device stores patterns of plots in a determination space corresponding to parameters and walking conditions of the walker such that they are associated with each other. Furthermore, a generating device generates plots defined in the determination space by parameters measured by the measuring device. Then, a determining device determines walking conditions of the walker on the basis of the patterns of the plots stored in conjunction with the walking conditions by the first storage device and the patterns of the plots generated by the generating device.