| 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 |
