Honda Giken Kogyo Kabushiki Kaisha

Ngk Spark Plug Company, Limited

Tohoku University

Yasushi Okada

Toyohei Nakajima

Toshiyuki Mieno

Nobuyuki Oono

Katsutoshi Tagami

Fumitaka Takahashi

Katsuhiko Takebe

Kenshiro Hashimoto

Toru Takenaka

Hiroshi Hasegawa

Ken Ogawa

Nobuhiro Hayakawa

Tetsusyo Yamada

Hiroyuki Ando

Masanobu Urabe

Masaki Ban

Tsuyoshi Baba

Naohide Ogawa

Shigeru Ibaraki

Nobuaki Ozawa

Satoshi Hiyama

Akira Nagao

Kazunori Yokota

Atsushi Inaba

Shigeki Kato

Taku Osada

Nobuyuki Ohno

Jun Ishii

Shigeto Nakayama

Kenichi Ogawa

Yuitsu Hayashikura

Kumiko Hayashi

Nobuyuki Cono

Keiichi Hayashi

Kouji Kawabe

One aspect of the present invention is a force measurement method including a first acquisition step in which, among data included in time course data indicating a movement trajectory of cargo acquired in a non-invasive manner, first data indicating a temporal change of a position of the cargo during a period in which the displacement of the cargo per unit time is substantially constant is acquired, a fluctuation value calculation step in which, based on a first probability distribution indicating a distribution of a probability that the amount of change at a predetermined position of the cargo per unit time is a predetermined amount, which is a probability distribution based on the first data, a fluctuation value proportional to a force applied to the cargo by motor proteins that transport the cargo is calculated, and a force calculation step in which the force is calculated based on the calculated fluctuation value.

Force measurement method, force measurement device, force measurement system, force measurement program, and recording medium

In a vehicle designed so that a driven wheel is driven by uniting an output from an engine and an output from a Rankine cycle system to each other, an accelerator pedal and a throttle valve are connected electrically to each other by a DBW control unit. When an accelerator opening degree (&#x3b8;ap) commanded by a driver is increased, a throttle opening degree (&#x3b8;th) is increased by a correcting amount (&#x394;&#x3b8;th) more than a value proportional to the accelerator opening degree (&#x3b8;ap), thereby compensating for an output shortage due to a response delay of the output from the Rankine cycle system. When the accelerator opening degree (&#x3b8;ap) commanded by the driver is decreased, the throttle opening degree (&#x3b8;th) is decreased by the correcting amount (&#x394;&#x3b8;th) more than the value proportional to the accelerator opening degree (&#x3b8;ap), thereby compensating for an output excessiveness due to the response delay of the output from the Rankine cycle system.

Vehicle driving device

A legged moving robot has an action plan function to operate according to a predetermined action plan. The legged moving robot has a fuel cell for supplying operating electric energy for the legged moving robot, an operation control unit for controlling operation of the legged moving robot according to the action plan, and an electric generation managing unit for monitoring a state of the fuel cell and contents of the action plan and for regulating an amount of electric energy generated by the fuel cell depending on the action plan.

Legged moving robot

A power supply unit has a capacitor unit for supplying electric power to a load. The capacitor unit has at least two blocks each having a plurality of electric double-layer capacitors connected in series. The manner of connection of the at least two blocks is changed over between series connection and parallel connection in dependence on an output required by the load. A switching regulator is connected to the electric charge-storing device. An electric vehicle having the power supply unit installed thereon is also provided.

Power supply unit and electric vehicle incorporating the same

A shared vehicle rental system has a plurality of motor vehicles, a parking area for a plurality of users to rent motor vehicles therefrom and to return motor vehicles thereto, and a control center for supervising the motor vehicles. The shared vehicle rental system registers the users in a plurality of groups depending on a usage time zone in which the users use the motor vehicles, identifies registration information of the users which is recorded on IC cards of the users, and supervises the motor vehicles and the parking area based on the registration information of the users.

Shared vehicle rental system

A radar system is designed to allow switched use of a pulse radar mode for detecting a target at a long distance away and a phase-difference radar mode for detecting a target at a short distance away, whereby target detection can be performed from a very close range to a long range with high accuracy. Also, the pulse radar mode enables detection of a plurality of targets in different ranges.

Radar system

A plurality of radar devices are provided on and along the periphery of a vehicle for monitoring in different directions. While sequentially switching the radar device to be used for the monitoring operation in response to a transmission-enable signal, a processing device detects, for each direction, presence of and distance to an obstacle or object on the basis of a phase difference (time difference) between signals transmitted and received via the corresponding radar device. Thus, the processing device causes an image display device to show the detected conditions around the vehicle and also causes a sound synthesizer to output a sound message to call the vehicle operator's attention.

Vehicle-surroundings monitoring apparatus

The first aspect of this invention relates to a peak data extracting device used in picture processing devices. The peak data extracting device comprises a DDA (data differential analysis) computing unit, an peak filter and a sorting unit. The computing unit gives Hough curves (sine curves) based on points to be processed on an original picture. The peak filter extracts peak data. The sorting unit sorts the peak data extracted with the noise components removed. The second aspect of this invention relates to a rotary motion recurrence formula computing device which are used in the DDA computing unit. The device computes the rotary motion formula

Peak data extracting device and a rotary motion recurrence formula

A method for feedback controlling an air/fuel ratio of mixture supplied to an internal combustion engine to a target air/fuel ratio, which uses an output signal of an oxygen concentration sensor. The sensor's output signal is proportional to the oxygen concentration in the exhaust gas of the engine. When the target air/fuel ratio is set at a stoichiometric air/fuel ratio, the air/fuel ratio of the mixture is varied by a small amount around the stoichiometric value if the air/fuel ratio of mixture supplied to the engine is detected to be in a predetermined air/fuel ratio range which includes the stoichiometric air/fuel ratio. The determination of the air/fuel ratio is calculated from the output signal of the oxygen concentration sensor.

Method for controlling an air/fuel ratio of an internal combustion engine

A device for detecting and measuring the concentration of a gas in a mixture of gas such as oxygen in the exhaust gas of an internal combustion engine and circuits for using that measurement to control the air-fuel ratio supplied to the engine. The detecting device has two separate gas residence chamber with different diffusion resistance openings for each chamber and separate pairs of electrodes for each chamber whereby the measurement can be separately made in each chamber. The particular chamber selected for measurement may be done on the basis of whether the air-fuel ratio is lean or rich whereby a substantially linear reading results for all ratios or on the basis of the transition-state or steady-state operating condition of the engine to provide either more rapid or more accurate readings. Further, by using the cells from both chambers to compare their readings and standards, the actual readings can be corrected for abnormalties that may occur after a period of use or to indicate the detector has become defective.

Device for measuring a component of a gaseous mixture

A method for controlling an oxygen concentration sensor for controlling an internal combustion engine, having a sensor body including a wall of oxygen ion conductive solid electrolyte member, and a heater element for heating the wall of oxygen ion conductive solid electrolyte member. During a time period after the ignition switch of the internal combustion engine is turned on, current value of the heater current to the heater element is reduced to a value which is smaller than the current value of the heater current to be supplied after the lapse of the time period.

Method for controlling an oxygen concentration sensor for use in an

An air/fuel ratio control system for an internal combustion engine includes an oxygen concentration sensor for producing an output signal to indicate the concentration of oxygen in the engine exhaust gases, and a circuit for producing a discrimination signal which expresses the inherent error, due to manufacturing deviations, in the output signal of the oxygen concentration sensor. Compensation of the output signal from the oxygen concentration sensor is performed in accordance with the discrimination signal, to produce a compensated output signal which controls means for adjusting the air/fuel ratio of the mixture supplied to the engine. Accurate control of the air/fuel ratio is thereby achieved, irrespective of differences in the operating characteristics of oxygen concentration sensors due to manufacturing deviations.

Air/fuel ratio control system for internal combustion engine

A method of engine air/fuel ratio control using an oxygen concentration sensor producing a concentration-proportional output, in which a compensation value is computed for compensating a basic value such as a basic fuel injection time interval, and in which a deviation of an air/fuel ratio detected using the oxygen concentration sensor from a target air/fuel ratio is measured the compensation value is computed and updated only under the condition that the deviation is below a predetermined value, with the compensation value being determined in accordance with the amount of deviation.

Method of air/fuel ratio control for internal combustion engine

An oxygen concentration sensor having an oxygen ion conductive solid electrolyte member forming a gas diffusion restricted region into which a measuring gas is introduced, includes a pump current source for supplying a pump current across a pair of electrodes sandwiching the solid electrolyte through a current detection element and a heater for heating the solid electrolyte. By an arrangement in which the current detection element is connected to one of the pair of electrodes facing the gas diffusion restricted region, error of measurement due to leakage of a drive current of the heater is prevented.

Oxygen concentration sensor for an internal combustion engine

Abnormalities are detected in an oxygen concentration sensor employed to sense the oxygen concentration in engine exhaust gas for obtaining data to control the air/fuel ratio of a fuel mixture supplied to the engine, in which the oxygen concentration sensor includes a sensor cell element and an oxygen pump element. The method functions to detect an abnormality of the oxygen concentration sensor on the basis of the value of sensor voltage which is developed by the sensor cell element and at least one of a set of parameters consisting of an engine operating condition, the value of pump current which flows between the electrodes of the oxygen pump element, and an air/fuel ratio compensation value which is derived from a sensed oxygen concentration level.

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Wako, Japan

Yasushi Okada