专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明专利

JPH08201006A VEHICLE POSITION DETECTOR 失效
公开(公告)号：JPH08201006A
公开(公告)日：1996-08-09
申请号：JP1188495
申请日：1995-01-27
申请人： NIPPON SOKEN , TOYOTA MOTOR CORP
发明人： ANDO SHINJI , ISHIHARA TOSHIHISA , HAYASHI IKUO , AOKI KEIJI , TACHIBANA AKIHIDE
IPC分类号： G01C15/00 , G01B7/00 , G01V3/10 , G05D1/02
摘要： PURPOSE: To provide a vehicle position detector which detects the position sideways of a vehicle with respect to the center of a running lane especially concerning the vehicle position detector for automatic operation of the vehicle. CONSTITUTION: A vehicle position detector for detecting the position sideways of a vehicle with respect to the center of a running lane is provided with a plurality of pickup coils 12 arranged in an array across the width on the undersurface of a vehicle to detect a hourly variation of the intensity of magnetic fields of a plurality of permanent magnets 11 which are arranged at an equal interval in the direction of running at the center of the running lane and magnetized vertically on the road surface of the running lane. A sideways position detection circuit 20 detects the maximum output voltage among the plurality of pickup coils 12 and the position of the pickup coil 12 generating the maximum output voltage is defined to be the position sideways of the vehicle.

2. 发明专利

JPH02205775A ACCELERATION SENSOR 失效
公开(公告)号：JPH02205775A
公开(公告)日：1990-08-15
申请号：JP2599489
申请日：1989-02-03
申请人： NIPPON SOKEN , TOYOTA MOTOR CORP
发明人： IDOGAKI KOJI , HAYASHI IKUO , ISHIHARA TOSHIHISA , SUGITANI TATSUO , INOUE HIDEO
IPC分类号： G01P15/02 , G01P15/08 , G01P15/105 , G01P15/11 , G01P15/18
摘要： PURPOSE:To measure the acceleration acting on a plane in a multi-axis direction looking from the center of a permanent magnet in the same gain by mounting a main housing, a sub-housing, bottom surface projections, upper surface projections, a magnetic fluid, the permanent magnet and a magnetic detection element. CONSTITUTION:A main housing 1 made of a non-magnetic body has an almost cylindrical space opened at the single end surface thereof formed therein and a sub-housing 3 made of a non-magnetic body is fixed to the main housing 1 so as to close the single end surface of said housing 1. Bottom surface projections 50a-50d are formed to the space bottom surface of the main housing 1 and upper surface projections 51a-51d are radially formed to the side surface on the space side of the sub-housing 3 respectively in opposed relation to the bottom surface projections 50a-50d. A disc-shaped permanent magnet 5 is sealed in the space along with a magnetic fluid and magnetized in the diameter direction at the peripheral surface thereof and the planar part thereof is opposed to the projections 50a-50d, 51a-51d and magnetic detection elements 12a-12d are provided between the projections and detect the position of the permanent magnet 5 to generate detection output.

3. 发明专利

JPH02138875A ACCELERATION SENSOR 失效
公开(公告)号：JPH02138875A
公开(公告)日：1990-05-28
申请号：JP3006888
申请日：1988-02-13
申请人： NIPPON SOKEN , TOYOTA MOTOR CORP
发明人： IDOGAKI KOJI , HAYASHI IKUO , ISHIHARA TOSHIHISA , SUGITANI TATSUO , INOUE HIDEO
IPC分类号： G01P15/02 , G01P15/08 , G01P15/105 , G01P15/11
摘要： PURPOSE:To obtain a uniaxial acceleration sensor by sealing a magnetic fluid and a movable permanent magnet in a non-magnetic case and by providing a detecting means of the position of the permanent magnet and a processing means of a detection signal. CONSTITUTION:A columnar permanent magnet 2 covered with an Al cover 410 and put normally in a magnetic fluid 1 is subjected to a magnetic return force so that the central position whereat the distribution of a magnetic flux generated by itself is uniform turns to be a position of stability thereof. At the time when an acceleration is generated, the permanent magnet 2 is subjected by inertia to a force in the direction relatively reverse to the direction of the acceleration G. Since the permanent magnet 2 is subjected also to the magnetic force of return to the position of stability, it becomes stable at a position whereat the two forces are balanced. The movement of the permanent magnet on the occasion is detected by Hall elements 41a and 41b fixed in the same direction, outputs thereof are processed by a prescribed processing circuit 300 to detect the distance of the movement of the permanent magnet, and the acceleration G can be detected therefrom.

4. 发明专利

JPH0290061A TWO-DIMENSIONAL ACCELERATION SENSOR 失效
公开(公告)号：JPH0290061A
公开(公告)日：1990-03-29
申请号：JP24313688
申请日：1988-09-28
申请人： NIPPON SOKEN , TOYOTA MOTOR CORP
发明人： IDOGAKI KOJI , HAYASHI IKUO , ISHIHARA TOSHIHISA , SUGITANI TATSUO , INOUE HIDEO
IPC分类号： G01P15/02 , G01P15/08 , G01P15/105 , G01P15/11 , G01P15/18
摘要： PURPOSE:To secure excellent durability and to make it possible to ensure the detection of acceleration in the direction of multiple axes without the effect of rotation by omitting mechanical contact and sliding parts in a simple constitution comprising magnetic fluid and a permanent magnet. CONSTITUTION:A permanent magnet 5 is moved to a position where receiving acceleration is balanced with magnetic viscoelasticity generated by a magnetic fluid 4 between a returning-force generating member and the poles of the magnet 5. The displacement in said movement occurs in the directions of multiple axes along the directions of the poles of the magnet 5. The displacement is detected with a magnetism detecting means. An acceleration computing means computes the acceleration based on the detected signal. A rotation preventing member is provided so as to face a part between the poles of the magnet 5. Therefore, magnetic viscoelasticity which suppresses the rotary motion of the magnet 5 acts between the high density part of the fluid 4 in the vicinity of the poles and the rotation preventing member. Since the rotation of the magnet 5 is prevented in this way, only the displacement of the magnet 5 caused by the acceleration can be detected positively without the effect of the displacement of the poles caused by the rotation.

5. 发明专利

JPH09292238A TRAVELING INFORMATION COLLECTING DEVICE FOR VEHICLE 失效
公开(公告)号：JPH09292238A
公开(公告)日：1997-11-11
申请号：JP12907696
申请日：1996-04-25
申请人： NIPPON SOKEN , TOYOTA MOTOR CORP
发明人： ISHIHARA TOSHIHISA , ANDO SHINJI , AOKI KEIJI , TACHIBANA AKIHIDE
IPC分类号： G01C21/00 , B60W30/00 , B62D6/00 , G01B21/22 , G01V3/00 , G01V15/00 , G05D1/02
摘要： PROBLEM TO BE SOLVED: To improve the detecting precision of the lateral displacement of a vehicle and the polarity of a magnetic marker in a traveling information collecting device for vehicle for collecting the traveling information of the vehicle from the magnetic flux density generated from the magnetic marker arranged on a traveling lane along the traveling direction of the vehicle. SOLUTION: A plurality of magnetic detecting means 2a, 2b, 2c for detecting the magnetic flux density of a magnetic marker 1 are laterally arranged on a vehicle 4, and a control computer 3 selects a reference magnetic detecting means capable of most strongly sensing the magnetic flux density of the magnetic detecting means 2a-2c, calculates the lateral displacement of the vehicle by this magnetic detecting means, judges the position of the magnetic marker 1 by the magnetic detecting means arranged on both sides of this magnetic detecting means, and judges the polarity of the magnetic pole 11 of the magnetic marker 1 from the resulting position and the direction of magnetic flux density detected by the reference magnetic detecting means.

6. 发明专利

JPH07209311A SPEED DETECTOR 失效
公开(公告)号：JPH07209311A
公开(公告)日：1995-08-11
申请号：JP355594
申请日：1994-01-18
申请人： NIPPON SOKEN , TOYOTA MOTOR CORP
发明人： ANDO SHINJI , HAYASHI IKUO , ISHIHARA TOSHIHISA , YONEYAMA MASATOSHI , IKEDA SHINJI
IPC分类号： G01P3/488 , G01D5/245
摘要： PURPOSE:To detect the wheel speed of a vehicle up to a low speed. CONSTITUTION:A waveform signal generating means 10 in the speed detector which detects the rotation of a rotary shaft of vehicle so as to calculate the vehicle speed varies continuously based on the rotation of rotary shaft and generates a plurality of waveform signals per rotation. A plurality of waveform signal detecting means 14 placed adjacent to the means 10 detect waveform signals by specified phase difference, and a waveform shaping means 15 for inputting the waveform signals shapes every detected waveform signals into square waveforms and synthesizes every shaped square waveforms, thereby obtaining the vehicle speed based on the synthesized waveforms resulting from the means 15.

7. 发明专利

JPH11230742A ROAD SHAPE MEASUREMENT DEVICE 失效
公开(公告)号：JPH11230742A
公开(公告)日：1999-08-27
申请号：JP4283898
申请日：1998-02-09
申请人： NIPPON SOKEN , TOYOTA MOTOR CORP
发明人： ISHIHARA TOSHIHISA , TONOMURA TAKANAO , SHIBAKAWA TOSHIO , YANAGISAWA TAKASHI , OKADA AKIO
IPC分类号： G01C22/00 , G01C7/04 , G01C9/08
摘要： PROBLEM TO BE SOLVED: To highly accurately measure the gradient of a road while making a vehicle travel. SOLUTION: The vehicle 1 is provided with a gravity detection means 3 for detecting the component force in a prescribed direction of the vehicle 1 of gravity, a turning angular velocity detection means 4 for detecting the angular velocity at the time of turning of the vehicle 1, and vehicle velocity detection means 5a and 5b for detecting a vehicle velocity. In an arithmetic unit 7, vehicle acceleration is computed from the vehicle velocity, centrifugal force is computed from the vehicle velocity and the angular velocity, the correction of subtracting inertia force recognized from the acceleration and the centrifugal force is performed to the component force in the prescribed direction of the gravity, the component force in the prescribed direction of the gravity is highly accurately obtained even during traveling and thus, the gradient of the road is highly accurately measured.

8. 发明专利

JPH08261707A VEHICLE POSITION DETECTION DEVICE 失效
公开(公告)号：JPH08261707A
公开(公告)日：1996-10-11
申请号：JP6811395
申请日：1995-03-27
申请人： NIPPON SOKEN , TOYOTA MOTOR CORP
发明人： ANDO SHINJI , ISHIHARA TOSHIHISA , HAYASHI IKUO , AOKI KEIJI , TACHIBANA AKIHIDE
IPC分类号： G01C21/00 , G01B7/00 , G05D1/02
摘要： PURPOSE: To detect the position of a vehicle in the lateral direction to the center of a driving lane. CONSTITUTION: A plurality of tape-shaped magnets 1 which are installed at an equal space in the direction where a vehicle advances at the center of a driving lane, are provided with a number of magnetic poles which are alternately magnetized in a row in the side direction of the driving lane, and where the magnetic pole surfaces face the vertical direction of the road surface of the driving lane are provided at a vehicle position detection device for detecting the position of the vehicle driving in the driving lane. Magnetic detection means 2a and 2b are installed in the direction of vehicle width at the lower portion of a vehicle 3, a number of magnetic poles are detected at a plurality of parts for the move in lateral direction of the vehicle 3, and the position in the lateral direction of the vehicle is obtained from the combination array of the detection magnetic poles.

9. 发明专利

JPH08161036A TRAVEL INFORMATION COLLECTING DEVICE FOR VEHICLE 失效
公开(公告)号：JPH08161036A
公开(公告)日：1996-06-21
申请号：JP32945394
申请日：1994-12-02
申请人： NIPPON SOKEN , TOYOTA MOTOR CORP
发明人： ISHIHARA TOSHIHISA , ANDO SHINJI , HAYASHI IKUO , AOKI KEIJI , TACHIBANA AKIHIDE
IPC分类号： E01F11/00 , B60W30/00 , E01F9/00 , E01F9/623 , E01F9/658 , E01F9/662 , E01F9/669 , E01F9/696 , G05D1/02 , G08G1/09
摘要： PURPOSE: To effectively obtain much travel information by securely detecting the deviation of the vehicle from the center of a travel lane. CONSTITUTION: This device have magnetic markers 1a-1f and 2a-2f which are provided at specific intervals L on both the right and left sides of travel lanes P1 and P2 along them, magnetic markers 1a-1f, and 2a-2f which are magnetized into specific magnetic poles showing travel information, magnetic sensors 3a and 3b which are provided on both the right and left sides of the vehicle, and a computer which obtains the travel information from magnetic flux detected by the magnetic sensors 3a and 3b.

10. 发明专利

JPH04212013A ANGULAR VELOCITY DETECTOR 失效
公开(公告)号：JPH04212013A
公开(公告)日：1992-08-03
申请号：JP99991
申请日：1991-01-09
申请人： NIPPON SOKEN , TOYOTA MOTOR CORP
发明人： FUKUI SHINJI , IDOGAKI KOJI , ISHIHARA TOSHIHISA , SHIMOMURA YUTAKA , IWASAKI TAKASHI , KUSUNOKI HIDEKI , INOUE HIDEO
IPC分类号： G01C19/12 , G01C19/02 , G01C19/20 , G01C19/42 , G01C19/44
摘要： PURPOSE:To detect angular velocity accurately by rotating a magnet as a rotating body without contact. CONSTITUTION:An inner case 724 is provided inside an outer case 708, while a magnet 3 is provided rotatably inside the inner case 724. When angular velocity occurs, the magnet 3 and the inner case 724 tilt with respect to the outer case 708 by a rotating ring 718 to an angle where precession torque and spring force of magnetic fluid 2 are balanced. Hall elements 41, 42 detect the inclination of the magnet to have the angular velocity calculated.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式