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51. 发明专利

JPH01178820A KARMAN VORTEX FLOWMETER 失效
公开(公告)号：JPH01178820A
公开(公告)日：1989-07-17
申请号：JP294588
申请日：1988-01-08
申请人： MITSUBISHI ELECTRIC CORP
发明人： YASUI KATSUAKI
IPC分类号： G01F1/32
摘要： PURPOSE:To reduce the effect of a change in sonic velocity due to pulsation and to prevent the generation of an error due to a change in a flow dividing ratio, by arranging a plurality of conduits each equipped with vortex generating posts and stable plates in parallel and providing a vortex generating mechanism in one of the conduits. CONSTITUTION:Two conduits 1 having vortex generating posts 2 and stable plates 3 are connected in parallel. An ultrasonic wave oscillator 4 and an ultrasonic wave receiver 5, both of which become a vortex detection mechanism, are provided to one of the conduits in opposed relation to the wall surface of the conduit on the downstream side of the stable plates 3. A Karman vortex is generated on the downstream side of the stable plates 3 in both conduits 1 in the presence of the vortex generating posts 2 and the stable plates 3 to be detected by the ultrasonic wave oscillator 4 and the ultrasonic wave receiver 5, and, by detecting phase change, the flow velocity or quantity of the fluid flowing through each of the conduits 1 is calculated from the frequency of the Karman vortex.

52. 发明专利

JPS6441609A MUFFLER 失效
公开(公告)号：JPS6441609A
公开(公告)日：1989-02-13
申请号：JP19568887
申请日：1987-08-04
申请人： MITSUBISHI ELECTRIC CORP
发明人： YASUI KATSUAKI
IPC分类号： F01N1/08 , F01N1/06
摘要： PURPOSE:To efficiently damp the sound energy by once contracting a sound flux at the inlet part of a reflection chamber formed in the shape of ellipse, and collecting the sound waves reflected on the internal surface of the reflection chamber in a sound-absorbing board arranged at one sound-focusing position of the ellipse. CONSTITUTION:An expansion chamber 6 and a reflection chamber 7 are respectively connected to an inlet pipe 1 in sequence, these chambers are surrounded by an external wall 4, and a face of the external wall 4 touching the reflection chamber 7 is formed in the shape of ellipse. And, an inlet part 8 of the reflection chamber 7 is arranged at one focusing position of the external wall 4 formed in the shape of ellipse, a cylindrical sound-absorbing board 3 being arranged at the other focusing position of the external wall 4 formed in the shape of ellipse. Thus, because the sound flux is once contracted at the inlet part 8 of the reflection chamber 7, and the sound waves reflected on the internal surface of the reflection chamber 7 are connected in the sound-absorbing board 3, the sound energy can be efficiently damped, and the muffling effect can be also improved.

53. 发明专利

JP2002281026A LIVING BODY INFORMATION COLLATION SYSTEM SECURITY DEVICE 失效
公开(公告)号：JP2002281026A
公开(公告)日：2002-09-27
申请号：JP2001076635
申请日：2001-03-16
申请人： MITSUBISHI ELECTRIC CORP
发明人： KISHIMOTO YUJI , YASUI KATSUAKI , SHIMA KENJI
IPC分类号： E05B49/00 , B60R25/01 , B60R25/04 , B60R25/10 , B60R25/25 , B60R25/40 , G06F15/00 , G06F21/32 , H04L9/14 , H04L9/32 , B60R25/00
摘要： PROBLEM TO BE SOLVED: To provide a reliable living body information collation system security device capable of improving security on communication, and incapable of reading of decoding living body information. SOLUTION: A portable living body information reader 20 is provided with a living body information acquiring means 22 and an enciphering means 23, and an on-vehicle living body information collator 30 is provided with a cipher information holding means 34 for holding decipherment information for deciphering the cipher, a cipher deciphering means 33 for deciphering the biological information received from the living body information reader 20 by using the decipherment information, a characteristic extracting means 35 for extracting characteristics from the deciphered living body information, a characteristic storing means 36 for holding the preliminarily registered characteristics of living body information, and a characteristic collating means 38 for collating the characteristics of the living body information held by the characteristic storing means 36 with the characteristics of the living body information extracted by the characteristic extracting means 35. Then, the living body information acquired by the living body information reader 20 is enciphered and transmitted to the living body information collating unit 30.

54. 发明专利

JP2001336995A TORQUE DETECTOR 失效
公开(公告)号：JP2001336995A
公开(公告)日：2001-12-07
申请号：JP2000159526
申请日：2000-05-30
申请人： MITSUBISHI ELECTRIC CORP
发明人： YASUI KATSUAKI
IPC分类号： G01L25/00 , B62D5/06 , G01L3/10 , G01L5/22
摘要： PROBLEM TO BE SOLVED: To provide a safe and inexpensive torque detector having temperature compensating function and failure detecting function by a pair of coils of one series. SOLUTION: A pair of coils 17 and 18 is serially connected to a load resistor RL, an AC driving voltage V1 is applied to the serial circuit. A differential amplifier circuit 31 outputs a differential voltage V3 between the voltage value V1 of the serial circuit and the voltage value V2 of the connection point of the coils, a first synchronous wave detecting circuit 107 performs a wave detection synchronously to the driving voltage V1, and a torque output circuit 23 outputs a torque signal based on the difference or ratio of impedance of the coils. A second synchronous wave detecting circuit 108 performs a wave detection synchronously to a control signal having a phase different from the driving voltage V1 by 90 deg., and a failure detecting circuit 109 performs a failure judgment on the basis of the sum of the impedances of the coils.

55. 发明专利

JP2001208621A MANUFACTURING METHOD OF TORQUE DETECTING DEVICE, SENSOR MODULE, AND TORQUE DETECTING DEVICE 失效
公开(公告)号：JP2001208621A
公开(公告)日：2001-08-03
申请号：JP2000016846
申请日：2000-01-26
申请人： MITSUBISHI ELECTRIC CORP
发明人： YASUI KATSUAKI , OHASHI YUTAKA
IPC分类号： G01L3/10
摘要： PROBLEM TO BE SOLVED: To provide a torque detecting device with high detection accuracy, a sensor module, and a simple method of manufacturing the same. SOLUTION: This sensor module is equipped with first and second shafts 1, 2 coaxially rotatably disposed, a torsion bar 3 torsionally displaced according to torque between the first and second shafts 1, 2, a magnetic element 12 rotating in the same phase as the first shaft 1, magnetic elements 11, 13 rotating in the same phase as the second shaft 2, and coils 21a, 21b for detecting reluctance varying with a rotational phase difference between the magnetic elements. The magnetic element 12 rotating in the same phase as the first shaft 1 and the magnetic elements 11, 13 rotating in the same phase as the second shaft 2 are given a prescribed rotational phase difference between them and temporarily fixed together. After the first and second shafts 1, 2, the torsion bar 3, and the sensor module are assembled together, the temporary fixation is released.

56. 发明专利

JP2001124640A TORQUE DETECTOR 失效
公开(公告)号：JP2001124640A
公开(公告)日：2001-05-11
申请号：JP30893199
申请日：1999-10-29
申请人： MITSUBISHI ELECTRIC CORP
发明人： YASUI KATSUAKI
IPC分类号： B62D5/04 , B62D5/06 , G01L3/10 , G01L5/22
摘要： PROBLEM TO BE SOLVED: To provide a torque detector having high responsiveness. SOLUTION: In this torque detector, the thicknesses of magnetic elements 11-13 and yokes 22a-22d are set to two times or less the surface skin thickness δcalculated by the following expression.

57. 发明专利

JP2000028449A TORQUE DETECTOR 失效
公开(公告)号：JP2000028449A
公开(公告)日：2000-01-28
申请号：JP19433998
申请日：1998-07-09
申请人： MITSUBISHI ELECTRIC CORP
发明人： YASUI KATSUAKI
IPC分类号： G01L3/10 , B62D6/00 , B62D119/00
摘要： PROBLEM TO BE SOLVED: To obtain a torque detector in which a decision is made that a failure has occurred on the occurrence of a failure at any one point in the coil or detection circuit and steering assist is not performed in power steering control when a decision is made that a failure has occurred. SOLUTION: The torque detector comprises a passive shaft 1 having a stress sensitive section where the magnetic characteristics varies depending on the torque, and a plurality of coils 5a, 5b wound forward around the passive shaft 1. The torque detector further comprises a first detection circuit 100a for detecting flux generated from the coil 5a, 5b as torque output, and a second detection circuit 100b having a single coil 5c wound around the passive shaft 1 and detecting flux generated from the coil 5c as torque output.

58. 发明专利

JPH11183274A STRAIN DETECTING APPARATUS 失效
公开(公告)号：JPH11183274A
公开(公告)日：1999-07-09
申请号：JP35659297
申请日：1997-12-25
申请人： MITSUBISHI ELECTRIC CORP
发明人： YASUI KATSUAKI , FURUTA SHINICHI
IPC分类号： G01G3/15 , G01G19/12 , G01L1/12
摘要： PROBLEM TO BE SOLVED: To obtain a strain detecting apparatus having a high sensitivity to measure a shearing strain, and easy in maintenance. SOLUTION: The strain detecting apparatus is provided with a shearing strain measuring unit 10 for shearing to deform a member to be measured corresponding to a shearing strain γ(=dX/dY) to detect the strain of the member, a pair of stays 11a 11b extended from the unit 10 substantially in a Y-axis direction, a holder 20 for elastically pressing the stays 11a, 11b to a seat 3a of the member 1 from an X-axis direction, and a bolt 30 for pressing the holder 20 via a belleville spring 24.

59. 发明专利

JPH0968470A SENSOR CIRCUIT 失效
公开(公告)号：JPH0968470A
公开(公告)日：1997-03-11
申请号：JP22368995
申请日：1995-08-31
申请人： MITSUBISHI ELECTRIC CORP
发明人： YASUI KATSUAKI
IPC分类号： G01D5/20 , G01L3/10 , G01R33/12
摘要： PROBLEM TO BE SOLVED: To detect a highly accurate physical quantity without producing an error in sensor output (average voltage) even if a coil of large inner resistance is used. SOLUTION: This circuit comprise coils 3a, 3b in which inductance L1, L2 is changed according to a physical quantity, a drive circuit 4A for applying drive voltage Va to the coils, a voltage detection circuit 5 for detecting coil voltage Vc, a current integration circuit 10 for outputting control signals C1, C2 during a period in which coil current (i) is integrated from a polarity reversal time point and an integrated current is zero, a detection circuit 6A for outputting detection voltage Vd of the coil voltage during a period of output of the control signals, and a smoothing circuit 7 for smoothing the detection voltage and outputting mean voltage Vm. A resistance component is offset during a detection period, influence of inner resistance r1, r2 is eliminated, and the physical quantity is highly accurately detected on the basis of the mean voltage responding to the inductance change of the coils.

60. 发明专利

JPH06280639A CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE 失效
公开(公告)号：JPH06280639A
公开(公告)日：1994-10-04
申请号：JP6851993
申请日：1993-03-26
申请人： MITSUBISHI ELECTRIC CORP
发明人： KAWABATA KOJI , YASUI KATSUAKI
IPC分类号： F02D41/02 , F02D41/04 , F02M25/08
摘要： PURPOSE:To provide a control device for an internal combustion engine which can safely detect a concentration of fuel vapor gas at a low cost during purging so as to control the compensating value for a fuel injection volume, and which can obtain an optimum air-fuel ratio even during purging. CONSTITUTION:An internal combustion engine incorporates a canister 2 which can temporarily trap therein fuel vapor from a fuel tank 23, and to which a galvanic battery type oxygen sensor 1 is attached. Accordingly, an oxygen density (oxygen partial pressure) detected by the sensor 1 is transmitted to a control device 8 for calculating a density of fuel vapor gas contained in purged gas from an detection output from the sensor 1, and for controlling a compensating value for the fuel injection value in accordance with thus calculated density. That is, when the density of the fuel vapor gas is high, the compensating value is controlled so as to decrease the fuel injection volume in accordance with the detected density.

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