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81. 发明专利

JP2000258269A TRI-AXIAL LOAD GAUGE 失效
公开(公告)号：JP2000258269A
公开(公告)日：2000-09-22
申请号：JP5629099
申请日：1999-03-03
申请人： TOYOTA CENTRAL RES & DEV
发明人： SAKUMA SHIGERU , OZAWA TADAO , KISANUKI YOSHIKATSU , TSUKADA ATSUSHI
IPC分类号： G01L5/16 , G01B7/16
摘要： PROBLEM TO BE SOLVED: To detect a load accurately regardless of the point on a rectangular load side flange where a Z-axis load acts. SOLUTION: A square load side flange 1 and a rectangular plate type fixed side flange 2 are arranged oppositely in parallel and four joint parts 31, 32, 33, 34 having rectangular cross-section are formed integrally of a resilient material at four corners of both flanges. Longitudinal axes of adjacent joints are arranged orthogonally and a plurality of strain gauges 10 are arranged in specified directions on the wall face at the joint in order to detect a load acting in three axial direction of X, Y and Z. Load distribution is measured by juxtaposing a large number of tri-axial load gauges.

82. 发明专利

JP2000155126A ACCELERATION SENSOR 失效
公开(公告)号：JP2000155126A
公开(公告)日：2000-06-06
申请号：JP32924898
申请日：1998-11-19
申请人： TOYOTA CENTRAL RES & DEV
发明人： TSUKADA ATSUSHI , ORI AKIO , MIKI KAZUO , SAKATA JIRO
IPC分类号： G01P15/00 , G01P15/04 , G01P15/135
摘要： PROBLEM TO BE SOLVED: To record a maximum value of acceleration which sharply increases or decreases like the acceleration of a vehicle as in a collision. SOLUTION: Cantilever parts 5 which bend differently with an inertial force are provided, and a contact parts 19 are provided on the movement side of a free end 20 of each cantilever part 5. If a cantilever part 5 bends with a prescribed acceleration, the free end 20 of the cantilever part 5 comes into contact with the contact part 19, and their contact state is maintained with a magnetic force, electrostatic attractive force, or van der Waals force.

83. 发明专利

JPH11180314A STEERING WHEEL 失效
公开(公告)号：JPH11180314A
公开(公告)日：1999-07-06
申请号：JP36499197
申请日：1997-12-19
申请人： TOYOTA CENTRAL RES & DEV
发明人： ORI AKIO , TSUKADA ATSUSHI , MIKI KAZUO
IPC分类号： B60R21/05 , B32B5/18 , B60R21/26 , B62D1/11
摘要： PROBLEM TO BE SOLVED: To allow a shock absorbing means to manage without using any gas generating means based on explosion of gunpowder. SOLUTION: A shock absorbing means 1 formed on the basis of a foaming body is furbished at a steering wheel 2. The means 1 is composed of a first chamber 11 which contains a foaming body 15 including open cell and whose end face is protruded toward the driver side farther than the surface of the ring part 11 of steering wheel 2, a second chamber 12 which is formed inside the first chamber 11 and is fed with at least either of a gas accumulated in the foaming body 15 in the first chamber 11 and a member to form the foaming body 15, and a communication hole 14 which generates communication between the two chambers 11 and 12 and exerts a damping function when the gas accumulated in the first chamber 11 or the member to form foaming body flows to the second chamber 12.

84. 发明专利

JPH08184445A ANGULAR SPEED SENSOR AND METHOD FOR ADJUSTING SENSITIVITY THEREOF 失效
公开(公告)号：JPH08184445A
公开(公告)日：1996-07-16
申请号：JP33929394
申请日：1994-12-28
申请人： TOYOTA CENTRAL RES & DEV
发明人： OKUWA MASAYUKI , NONOMURA YUTAKA , TSUKADA ATSUSHI , MORIKAWA KENJI
IPC分类号： G01C19/56 , G01C19/5649 , G01P21/00 , G01P9/04
摘要： PURPOSE: To obtain a highly reliable high sensitivity angular speed sensor in which the oscillation characteristics of a composite oscillator can be regulated accurately by connecting a capacitive element for regulating the bending oscillation mode of the oscillator to the input terminal of a piezoelectric element for driving. CONSTITUTION: Piezoelectric elements 12, 14 for driving the excitation are formed on the adjacent side faces of an oscillator 10 and piezoelectric elements 16, 18 for detection are formed on the side faces opposing thereto. The element 12, 14 has an input terminal connected with one end of a variable capacity element 20, 22 for regulating the oscillation mode of the oscillator 10 having the other end connected with a drive circuit 24. Oscillation output from the circuit 24 is applied to the elements 12, 14 which are oscillated by reverse voltage effect to drive the oscillator 10. The elements 16, 18 convert the bending oscillation of the oscillator 10 into electric signals which are then added by an adder 26 and fed back to the circuit 24. It is then inputted to a differential detection circuit 28 and a displacement component is detected by synchronous detection thus detecting the rotational angular speed.

85. 发明专利

JPH0861960A VIBRATOR AND ADJUSTING METHOD THEREFOR, AND ANGULAR VELOCITY SENSOR 失效
公开(公告)号：JPH0861960A
公开(公告)日：1996-03-08
申请号：JP22563594
申请日：1994-08-25
申请人： TOYOTA CENTRAL RES & DEV
发明人： NONOMURA YUTAKA , MORIKAWA KENJI , OKUWA MASAYUKI , TSUKADA ATSUSHI
IPC分类号： G01C19/56 , G01C19/5607 , G01C19/5628 , G01P9/04
摘要： PURPOSE: To improve the sensitivity of a vibrator and an angular velocity sensor, and simplify the sensitivity adjustment thereof. CONSTITUTION: The vibrator 10 supports a tuning fork type vibration body 12 with a torsion bar 16 having both ends fixed. Also, the torsion bar 16 is provided with torsional vibration bodies 14 and 15, thereby forming a torsional vibration system. When a rotating angular velocity acts during the planar vibration of each of the vibration pieces 12a and 12b of the vibration body 12 along an X-axis a torsional vibration having the torsion bar 16 as the center is induced in the vibration body due to a Coriolis force and a torsional vibration corresponding to the rotating angular velocity takes place in the torsional vibration system, as well. Then, the torsional vibration is amplified through the vibration bodies 12, 14 and 15, and detected by piezoelectric elements 20a and 20b laid on the bodies 14 and 15 to detect the torsional vibration.

86. 发明专利

JPH0236573A MANUFACTURE OF FORCE CONVERSION ELEMENT 失效
公开(公告)号：JPH0236573A
公开(公告)日：1990-02-06
申请号：JP18632988
申请日：1988-07-26
申请人： TOYOTA CENTRAL RES & DEV
发明人： HAYASHI SADAYUKI , TSUKADA ATSUSHI , OMURA YOSHITERU , TOKUMITSU SANAE
IPC分类号： G01L1/18 , G01L9/00 , G01L23/18 , H01L29/84
摘要： PURPOSE:To reduce dispersion in force transfer element electrical characteristics attributable to positional difference among them during the manufacturing process by a method wherein alignment of and bond between Si single crystal bodies and supporting bases and between the Si single crystal bodies and force transmission sections are accomplished wafer by wafer. CONSTITUTION:A supporting wafer 110 and a force transmission wafer 130 are respectively attached to both sides of an Si single crystal wafer 100 by static bond after alignment, the force transmission wafer 130 is subjected to dicing along matrix grooves 132 by a width w , and then a holding section 134 is removed from each force transmission section 30. Plural force transmission wafers 130 now form a matrix statically bonded to the crystal faces on the Si single crystal wafer 100. The statically bonded Si single crystal wafer 100 and the supporting wafer 110 are subjected to dicing, which is accomplished along the center lines 136 of the dicing grooves (matrix grooves 132), for segmentation into plural force conversion elements 1000.

87. 发明专利

JPS6352014A FLUID MEASURING INSTRUMENT 失效
公开(公告)号：JPS6352014A
公开(公告)日：1988-03-05
申请号：JP19671586
申请日：1986-08-22
申请人： TOYOTA CENTRAL RES & DEV
发明人： OTSUKA MASAYOSHI , TSUKADA ATSUSHI , SUGIYAMA KATSUHIKO
IPC分类号： G01F1/86
摘要： PURPOSE:To measure pressure and temperature simultaneously at the same place and to calculate the mass, etc., of fluid by using a diffusion type semiconductor sensor. CONSTITUTION:The diffusion type semiconductor sensor 16 is constituted by forming a bridge circuit of four diffusion gauge resistances 20 on a silicon substrate 18 and detects pressure. This sensor 16 is arranged against a flow of fluid and a constant current is supplied 22 to both ends of the resistances 20. Then if there is a flow fluid at the periphery of the sensor 16, piezoelectric resistance effect is caused according to the flow velocity and the value of the resistances 20 varies. The terminal voltage across the bridge impedance and bridge unbalanced voltage vary according to said variation and those are amplified 26 and 28, A/D-converted 31, and inputted to a CPU 32. Consequently, the CPU 32 obtain the pressure and temperature of the fluid from the respective voltages to perform temperature compensation and sensitivity compensation, and then computes accurate dynamic pressure, thereby obtaining density from a specific table. Then, those values are substituted in a specific expression and the square root of the values is computed to find the mess flow rate of the fluid, which is outputted.

88. 发明专利

JPS62259475A SEMICONDUCTOR PRESSURE TRANSDUCER AND MANUFACTURE THEREOF 失效
公开(公告)号：JPS62259475A
公开(公告)日：1987-11-11
申请号：JP10355286
申请日：1986-05-02
申请人： TOYOTA CENTRAL RES & DEV
发明人： OMURA YOSHITERU , SHIMAOKA KEIICHI , HAYASHI SADAYUKI , TSUKADA ATSUSHI , KAWAGUCHI KAZUYOSHI
IPC分类号： H01L29/84 , G01L9/00 , G01L9/04
摘要： PURPOSE:To improve the measuring accuracy and breakdown strength with respect to applying pressure of a semiconductor pressure converter by forming a piezoresistance element in the diaphragm region of a sapphire substrate oppositely to a pressure introducing hole, applying a measuring pressure from the other one surface side of the substrate and measuring the pressure. CONSTITUTION:A pressure transducer is formed by electrostatically bonding a sapphire substrate 10 to a support 12, reference pressure Ps and measuring pressure P are applied from both surface sides of a diaphragm region 100, and the pressure P is measured on the basis of the resistance variation of a piezoresistance element 16 generated at this time. Here, the element 16 is provided at the pressure introducing hole side surface 10a of the substrate 10, the pressure Ps is applied to the surface 10a of the region 100 of the substrate 10, and the pressure P is applied to the surface 10b of opposite side. Thus, even when pressure medium acts as being corrosive at high temperature and pressure, no separating force is acted at the electrostatic junction between the substrate 10 and the support 12 to improve the breakdown strength.

89. 发明专利

JP2006010554A Cylinder internal pressure detector 有权
标题翻译：气缸内压检测器
公开(公告)号：JP2006010554A
公开(公告)日：2006-01-12
申请号：JP2004189552
申请日：2004-06-28
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： GOYA YOICHIRO , MORIYA SAKANORI , MIZUNO KENTAROU , TSUKADA ATSUSHI
IPC分类号： G01L23/18 , F02D45/00 , G01L9/04
摘要： PROBLEM TO BE SOLVED: To secure a high sensitivity of characteristic, and to reduce a cost, in a cylinder internal pressure detector.
SOLUTION: A high output type detecting element 11 is adopted, an off-set regulating resistor 12 is connected in series to the high output type detecting element 11, two sensitivity regulating resistors 13, 14 different in resistance values and switching switches 15, 16 are connected in parallel to the high output type detecting element 11, and an ECU 19 operates the switching switches 15, 16 in response to an operation condition of an internal combustion engine to switch connection conditions of the sensitivity regulating resistors 13, 14.
COPYRIGHT: (C)2006,JPO&NCIPI

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