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1. 发明申请

US20230003530A1 POSITION ESTIMATION METHOD AND POSITION ESTIMATION SYSTEM 有权
公开(公告)号：US20230003530A1
公开(公告)日：2023-01-05
申请号：US17777642
申请日：2020-11-20
申请人： Aichi Steel Corporation
发明人： Michiharu YAMAMOTO , Hitoshi AOYAMA
IPC分类号： G01C21/28 , G08G1/042
摘要： A position estimation system for a vehicle including a magnetic sensor which measures magnetism acting from a road surface side forming a surface of a traveling road to estimate an own vehicle position includes a map DB which stores a map (1) associated with a road-surface magnetic distribution (M2), which is a distribution of quantities of magnetism at respective points on the road surface, a magnetic distribution generation part which acquires magnetic measurement values from the magnetic sensor and generates a measured magnetic distribution, which is a distribution of magnetic measurement values, and a position estimation part which specifies an area corresponding to the measured magnetic distribution in the road-surface magnetic distribution (M2) associated with the map stored in the map DB and estimates the own vehicle position based on a position of the area corresponding to the measured magnetic distribution on the map.

2. 发明申请

US20220340202A1 VEHICULAR CONTROL METHOD AND CONTROL SYSTEM 有权
公开(公告)号：US20220340202A1
公开(公告)日：2022-10-27
申请号：US17619592
申请日：2020-06-18
申请人： Aichi Steel Corporation
发明人： Michiharu YAMAMOTO , Tomohiko NAGAO , Hitoshi AOYAMA
IPC分类号： B62D15/02 , B60W30/12 , B60W30/09 , B60W30/18 , G01C21/16
摘要： A control system (1) for letting a vehicle travel by automatic steering is a system which includes a vehicle control part (112) which controls the vehicle so that a subject point set for the vehicle passes through a predetermined route, a subject-point selection processing part (113) which selects a subject point, and a subject-point updating processing part (114) which updates the subject point as a control subject as appropriate by setting the subject point newly selected by the subject-point selection processing part (113) as the control subject, and a highly-versatile system capable of automatic steering irrespective of the type of the vehicle or the shape of the route.

3. 发明申请

US20220075385A1 VEHICLE TRAVELING CONTROL METHOD AND VEHICLE CONTROL SYSTEM 有权
公开(公告)号：US20220075385A1
公开(公告)日：2022-03-10
申请号：US17417795
申请日：2019-12-27
申请人： AICHI STEEL CORPORATION
发明人： Michiharu YAMAMOTO , Kota ARATANI , Kazuo URAKAWA
IPC分类号： G05D1/02 , B62D15/02
摘要： A vehicle traveling control method for causing a vehicle to travel along a traveling road where magnetic markers are arrayed is a control method including an azimuth measuring process of performing a process on angular velocity, which is an output of a gyro sensor, and measuring a measured azimuth indicating an orientation of the vehicle, a control process of controlling the vehicle so that the measured azimuth is matched with a target azimuth corresponding to a direction of the traveling road, and a correction process of correcting a degree of control by the control process, in order to bring a lateral shift amount of the vehicle with reference to each of the magnetic markers closer to zero, in accordance with the lateral shift amount.

4. 发明申请

US20220028261A1 MAGNETIC MARKER SYSTEM 有权
公开(公告)号：US20220028261A1
公开(公告)日：2022-01-27
申请号：US17414354
申请日：2019-12-27
申请人： AICHI STEEL CORPORATION
发明人： Michiharu YAMAMOTO , Tomohiko NAGAO , Hitoshi AOYAMA
IPC分类号： G08G1/042 , G08G1/01 , G06Q10/00
摘要： In a magnetic marker system including a magnetic marker disposed in a travel environment so as to be detectable by a magnetic sensor attached to a vehicle and a server apparatus which acquires detection information of the magnetic marker from each vehicle, the detection information uploaded from a vehicle side to the server apparatus includes marker information, which is identification information of a corresponding magnetic marker, and the server apparatus estimates the state of the magnetic marker based on the detection information from each vehicle.

5. 发明申请

US20210390588A1 DRIVING SUPPORT SYSTEM 有权
公开(公告)号：US20210390588A1
公开(公告)日：2021-12-16
申请号：US17460378
申请日：2021-08-30
申请人： AICHI STEEL CORPORATION
发明人： Michiharu YAMAMOTO , Tomohiko NAGAO , Hitoshi AOYAMA
IPC分类号： G06Q30/02 , H04W4/029 , H04W4/40 , G06Q20/10 , G07C5/00 , G08G1/042
摘要： A driving support system including an information acquiring part which acquires, from a vehicle side detecting a magnetic marker laid in a road and capable of acquiring marker identification information for identifying the magnetic marker detected, upload information including the marker identification information, an information providing part which provides the vehicle side as a transmission source of the upload information with support information, a configuration which provides information acquisition right which is a right to receive the support information to the vehicle, and a transmission source management area for registering the identification information of the vehicle as a provision destination of the support information by recording the identification information of the vehicle. The identification information of the vehicle is recorded in the transmission source management area and the information acquisition right is granted to the vehicle when the information acquiring part acquire the upload information.

6. 发明申请

US20200284586A1 POSITION CAPTURING SYSTEM AND POSITION CAPTURING METHOD 审中-公开
公开(公告)号：US20200284586A1
公开(公告)日：2020-09-10
申请号：US16644972
申请日：2018-08-29
申请人： AICHI STEEL CORPORATION
发明人： Michiharu YAMAMOTO , Tomohiko NAGAO , Hitoshi AOYAMA
IPC分类号： G01C21/28 , G08G1/16
摘要： A position capturing system (1) includes a vehicle (5) provided with a measuring unit (2) which magnetically detects a magnetic marker (10) laid in a road and determines a polarity thereof and a GPS unit (35) which measures a position; a database (34) having stored therein a laying position of each of magnetic markers (10) linked with polarity information of the magnetic marker (10); and a position capturing unit (32) which executes processes for capturing the position of the vehicle (5) by selecting corresponding laying position from the database (34) when any of the magnetic markers (10) is detected; and when any of the magnetic markers (10) is detected, selects the laying position located in a specified area with reference to a measured position by the GPS unit (35) and linked with polarity information which complies with the polarity of the detected magnetic marker (10).

7. 发明申请

US20150219731A1 MAGNETIC FIELD DETECTING DEVICE 有权
标题翻译：磁场检测装置
公开(公告)号：US20150219731A1
公开(公告)日：2015-08-06
申请号：US14603833
申请日：2015-01-23
申请人： AICHI STEEL CORPORATION
发明人： Michiharu YAMAMOTO , Hideo ARAKAWA , Takeshi KAWANO
IPC分类号： G01R33/09
CPC分类号： G01R33/09 , G01R33/063
摘要： A magnetic field detecting device which comprises a magnetic impedance sensor including a magnetic impedance element 1 in which a pulse electrical current or a high frequency electrical current is applied from an oscillator 2 to an amorphous wire 10 and an alternate current or AC damped oscillation voltage, which is induced in a detecting coil 11 wound around the amorphous wire 10 and has a magnitude corresponding to an external magnetic field, is output, and an arbitrary magnetic field is applied to the amorphous wire by means of the magnetic field generated on the detecting coil 11 energized by connecting the detecting coil 11 to a voltage source or to a current source E through an impedance network 3 comprising of a resistor R or a coil L or a condenser C or comprising a combination of the resistor R, the coil L, and the condenser C.
摘要翻译：一种磁场检测装置，其包括磁阻抗传感器，该磁阻抗传感器包括磁阻抗元件1，其中脉冲电流或高频电流从振荡器2施加到非晶线10，以及交流或交流阻尼振荡电压，输出卷绕在非晶线10上的检测线圈11并具有与外部磁场对应的大小的感应线圈，通过在检测线圈上产生的磁场向任意的磁场施加任意的磁场 11通过将检测线圈11连接到电压源或通过阻抗网络3连接到电流源E，阻抗网络3由电阻器R或线圈L或电容器C组成，或者包括电阻器R，线圈L和冷凝器C.

8. 发明申请

US20220412769A1 MAP AND MAP GENERATION METHOD 有权
公开(公告)号：US20220412769A1
公开(公告)日：2022-12-29
申请号：US17778020
申请日：2020-11-20
申请人： Aichi Steel Corporation
发明人： Michiharu YAMAMOTO , Hitoshi AOYAMA
IPC分类号： G01C21/00 , G08G1/042 , B60W60/00
摘要： A map (1) to be used by a vehicle which can measure magnetism acting from a road surface side forming a surface of a road to estimate an own vehicle position includes a structure map (M1) which represents a road structure and has position data indicating an absolute position linked to each point and a road-surface magnetic distribution (M2) which is magnetic data at each point on the road surface and has position data indicating an absolute position linked to each point. In the map (1), the structure map (M1) and the road-surface magnetic distribution (M2) are associated with each other via the position data indicating the absolute position.

9. 发明申请

US20210250738A1 DRIVING ASSISTANCE SYSTEM 有权
公开(公告)号：US20210250738A1
公开(公告)日：2021-08-12
申请号：US17243583
申请日：2021-04-29
申请人： Aichi Steel Corporation
发明人： Michiharu YAMAMOTO , Tomohiko NAGAO , Hitoshi AOYAMA
IPC分类号： H04W4/40 , G08G1/09 , H04W4/029 , E01F11/00 , G05D1/02 , G08G1/056 , G08G1/042 , B60W30/12
摘要： Provided is a driving assistance system capable of providing more pieces of information to a vehicle side by using magnetic markers. A driving assistance system (1A) is a system including magnetic markers (1) laid on a travelling road so as to be magnetically detectable and also be able to provide code information to a vehicle side, a vehicle (5) configured to be able to magnetically detect the magnetic markers (1) and also read the code information, and a base station (6) configured to make a reply with corresponding information when receiving the code information from the vehicle (5) reading the code information.

10. 发明申请

US20210215507A1 GYRO SENSOR CALIBRATION METHOD 有权
公开(公告)号：US20210215507A1
公开(公告)日：2021-07-15
申请号：US17059228
申请日：2019-05-17
申请人： AICHI STEEL CORPORATION
发明人： Michiharu YAMAMOTO , Tomohiko NAGAO , Hitoshi AOYAMA
IPC分类号： G01C25/00 , G01C21/28
摘要： In a method of calibrating a gyro sensor mounted on a vehicle for measuring an angular velocity in a rotating direction generated about an axis of a vertical direction, a lateral shift amount detection process of detecting lateral shift amounts of the vehicle with respect to magnetic markers laid in a road, an azimuth estimation process of estimating, when the vehicle passes over a laying location where two magnetic markers are laid, an azimuth of the vehicle by a calculation process with the lateral shift amounts with respect to the two magnetic markers taken as input values, and a calibration process of calibrating the gyro sensor by using the azimuth of the vehicle estimated by the azimuth estimation process, are performed.

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