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Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Inventor:
Nishimura; Yoichi
Address:
Wako, JP
No. of patents:
34
Patents:












Patent Number Title Of Patent Date Issued
8118763 Walking assist device February 21, 2012
Provided is a walking assist device including a seat member, a leg link having a joint portion, and a driving source for the joint portion. The walking assist device allows a user to rest by sitting on the seat member. Accordingly, the walking assist device further includes a lock me
7880130 Optical device and mobile apparatus February 1, 2011
An optical device ensuring projection of light over a wide range as well as reduction in size, and a mobile apparatus mounted with the optical device are provided. The optical device (100) includes a light-projecting unit (110) and a light-receiving unit (120). The light-projecting unit
7378811 Device for absorbing floor-landing shock for legged mobile robot May 27, 2008
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 (variable capacity element) is provided at a bottom face side of the foot mechanism 6. The bag-like member 19 is constructed of an elastic material such as
7228923 Device for absorbing floor-landing shock for legged mobile robot June 12, 2007
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 mat
6967456 Device for absorbing floor-landing shock for legged mobile robot November 22, 2005
A landing shock absorbing device 18 provided in a foot mechanism 6 of a leg of a robot comprises an inflatable and compressible bag-like member 19 (a variable capacity element) on a bottom face side of the foot mechanism 6. The bag-like member 19 is constructed of an elastic material suc
6962220 Leg joint assist device for leg type movable robot November 8, 2005
An assist device that applies an auxiliary driving force to a joint in parallel with a driving force of a joint actuator between a thigh portion and a crus portion, which are a pair of link members of a leg. The assist device generates the auxiliary driving force by use of spring device,
5908463 Fuel metering control system for internal combustion engine June 1, 1999
A fuel metering control system for an internal combustion engine having a plurality of cylinders. The system includes an air/fuel ratio sensor and engine operating condition detecting means for detecting engine operating conditions such as engine speed and engine load. The basic quantity
5806506 Cylinder-by-cylinder air-fuel ratio-estimating system for internal combustion engines September 15, 1998
A cylinder-by-cylinder air-fuel ratio-estimating system for an internal combustion engine includes an air-fuel ratio sensor arranged in the exhaust system of the engine, at a confluent portion of the exhaust system. The air-fuel ratio of a mixture supplied to each of the cylinders is
5806012 Fuel metering control system for internal combustion engine September 8, 1998
A fuel metering control system for an internal combustion engine having a plurality of cylinders. The system includes an air/fuel ratio sensor and engine operating condition detecting means for detecting engine operating conditions at least including engine speed and engine load. The bas
5797261 Air-fuel ratio control system for internal combustion engines August 25, 1998
An air-fuel ratio control system for an internal combustion engine has a first air-fuel ratio sensor arranged in an exhaust passage at a location upstream of a catalyst and a second air-fuel ratio sensor arranged in the exhaust passage at a location downstream of the catalyst. In respons
5787868 Fuel metering control system for internal combustion engine August 4, 1998
A fuel metering control system for an internal combustion engine including a feedback loop having an adaptive controller and an adaptation mechanism that estimates controller parameters .theta.. The adaptive controller corrects the quantity of fuel injection to bring a controlled variabl
5758630 Fuel metering control system for internal combustion engine June 2, 1998
A fuel metering control system for an internal combustion engine including a feedback loop having an adaptive controller and an adaptation mechanism that estimates a controller parameters .theta.. The adaptive controller corrects the quantity of fuel injection to bring a controlled varia
5758490 Fuel metering control system for internal combustion engine June 2, 1998
A fuel metering control system for an internal combustion engine having a plurality of cylinders. The system includes an air/fuel ratio sensor and engine operating condition detecting means for detecting engine operating conditions at least including engine speed and engine load. The bas
5758308 Fuel metering control system for internal combustion engine May 26, 1998
A fuel metering control system for an internal combustion engine having a plurality of cylinders. The system includes an air/fuel ratio sensor and engine operating condition detecting device for detecting engine operating conditions at least including engine speed and engine load. The ba
5755094 Fuel metering control system for internal combustion engine May 26, 1998
A fuel metering control system for an internal combustion engine having a plurality of cylinders. The system includes an air/fuel ratio sensor and engine operating condition detecting means for detecting engine operating conditions at least including engine speed and engine load. The bas
5720265 Fuel metering control system for internal combustion engine February 24, 1998
A fuel metering control system for an internal combustion engine, having a feedback loop. In the system, the quantity of fuel injection (Tim) to be supplied to the engine (plant) is determined outside of the feedback loop. A first feedback correction coefficient (KSTR) is calculated usin
5701871 Fuel supply control system for internal combustion engines December 30, 1997
A fuel supply control system for an internal combustion engine calculates a basic amount of fuel to be supplied to the engine, based on the rotational speed of the engine and load on the engine. An amount of fuel adhering to the inner wall surface of the intake passage of the engine is e
5692485 Feedback control system using adaptive control December 2, 1997
An air/fuel ratio feedback control system with the adaptive controller. The adaptive controller has a system parameter estimator which identifies system parameters such that the error between the desired value and the controlled variable outputted from the plant decreases to zero. In the
5669368 Fuel metering control system for internal combustion engine September 23, 1997
A system for controlling fuel metering for a multi-cylinder internal combustion engine, having a feedback loop which has an adaptive controller and an adaptation mechanism coupled to the adaptive controller for estimating controller parameters .theta.. The adaptive controller calcula
5666934 Fuel metering control system for internal combustion engine September 16, 1997
A fuel metering control system for an internal combustion engine including a feedback loop having an adaptive controller and an adaptation mechanism that estimates a controller parameters .theta.. The adaptive controller corrects the quantity of fuel injection to bring a controlled varia
5657736 Fuel metering control system for internal combustion engine August 19, 1997
A fuel metering control system for an internal combustion engine having a plurality of cylinders. The system includes an air/fuel ratio sensor and engine operating condition detecting means for detecting engine operating conditions. The basic quantity of fuel injection is determined by
5657735 Fuel metering control system for internal combustion engine August 19, 1997
A fuel metering control system for an internal combustion engine having a plurality of cylinders. The system includes an air/fuel ratio sensor and engine operating condition detecting means for detecting engine operating conditions at least including engine speed and engine load. The bas
5649518 Fuel metering control system for internal combustion engine July 22, 1997
A fuel metering control system for an internal combustion engine, having a feedback loop. In the system, the quantity of fuel injection (Tim) to be supplied to the engine (plant) is determined outside of the feedback loop. A feedback correction coefficient (KSTR) is calculated using an a
5606959 Fuel metering control system for internal combustion engine March 4, 1997
A fuel metering control system for an internal combustion engine including a feedback loop having an adaptive controller and an adaptation mechanism that estimates controller parameters .theta.. The adaptive controller calculates a feedback correction coefficient that corrects the quanti
5600056 Air/fuel ratio detection system for multicylinder internal combustion engine February 4, 1997
An air/fuel ratio detection system for a multicylinder internal combustion engine having an air/fuel ratio sensor installed at the exhaust system confluence point of the engine. The sensor outputs are successively stored in buffers. In the engine, the distances of the individual cylinder
5590638 Fuel metering control system for internal combustion engine January 7, 1997
A fuel metering control system for an internal combustion engine including feedback loop having an adaptive controller and an adaptation mechanism that estimates a controller parameters .theta.. The adaptive controller corrects the quantity of fuel injection to bring a controlled variabl
5569847 Air-fuel ratio estimator for internal combustion engine October 29, 1996
An air-fuel ratio estimator for estimating air-fuel ratio of an air and fuel mixture supplied to an internal combustion engine from an output of an air-fuel ratio sensor. In the estimator, detection response lag time of said air-fuel ratio sensor is approximated as a first-order lag time
5568799 Fuel injection control system for internal combustion engines October 29, 1996
A fuel injection control system for an internal combustion engine calculates an amount of fuel to be injected in a manner carrying out fuel transfer delay-dependent correction based on a delay of transfer of fuel injected from the time the fuel is injected into the intake passage of the
5566071 Air/fuel ratio estimation system for internal combustion engine October 15, 1996
A system for estimating air/fuel ratios in the individual cylinders of a multicylinder internal combustion engine from the output of a single air/fuel ratio sensor installed at the exhaust system of the engine. A mathematical model is first designed to describe the behavior of the ex
5558076 Fuel metering control system for internal combustion engine September 24, 1996
A fuel metering control system for an internal combustion engine, having a feedback loop. In the system, the quantity of fuel injection (Tim) to be supplied to the engine (plant) is determined outside of the feedback loop. A first feedback correction coefficient (KSTR) is calculated usin
5548514 Air/fuel ratio estimation system for internal combustion engine August 20, 1996
A system for estimating air/fuel ratios in the individual cylinders of a multicylinder internal combustion engine from an output of an air/fuel ratio sensor installed at an exhaust system of the engine. In the system, the exhaust system behavior is derived by a model in which X(k) is
5542404 Trouble detection system for internal combustion engine August 6, 1996
A malfunction detecting system for an internal combustion engine utilizes an air/fuel ratio feedback control loop. Namely, feedback factors #nKLAF operate to absorb the air/fuel ratio variance between cylinders and to converge the individual cylinders' air/fuel ratios to the confluence p
5540209 Air-fuel ratio detection system for internal combustion engine July 30, 1996
A system for detecting air-fuel ratio of an internal combustion engine by sampling outputs of an air-fuel ratio sensor installed at an exhaust system confluence point of said engine. A timing map is prepared to be retrieved by the engine speed and manifold absolute pressure to determine
5379634 Misfire-detecting system for internal combustion engines January 10, 1995
A misfire-detecting system for an internal combustion engine having a plurality of cylinders. A rotational speed of the engine is detected and a rotational speed signal indicative of the detected rotational speed of the engine is output. The rotational speed signal is filtered. Occurrenc










 
 
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