公开(公告)号：US20150276403A1

公开(公告)日：2015-10-01

申请号：US14674396

申请日：2015-03-31

Applicant: MAGNA MIRRORS OF AMERICA, INC.

Inventor： Kenneth L. Schierbeek

IPC: G01C17/38 ,  H05B1/02 ,  G01C17/28 ,  B60R1/12

CPC classification number: G01C17/38 ,  B60R1/04 ,  B60R1/12 ,  B60R2001/1215 ,  G01C17/28 ,  H04N7/183 ,  H05B1/0236

Abstract: A compass system for a vehicle includes a compass sensor and compass circuitry. The compass sensor is disposed at or near an interior heated surface of a windshield of a vehicle equipped with the compass system. The compass circuitry, responsive to an output of the compass sensor indicative of sensed magnetic signals or fields, is operable to determine a directional heading of the vehicle. The compass circuitry is operable to determine a magnetic signature generated by a heating element that heats the interior heated surface of the windshield when the heating element is powered. The compass circuitry, responsive to a determination that the heating element is powered, is operable to compensate the sensed magnetic signals to determine the vehicle directional heading. The compensation is derived from the determined magnetic signature. The compass circuitry may compensate the sensed magnetic signals by applying an offset derived from the determined magnetic signature.

Abstract translation: 用于车辆的罗盘系统包括罗盘传感器和罗盘电路。 罗盘传感器设置在配备有罗盘系统的车辆的挡风玻璃的内部加热表面处或附近。 响应于指示感测的磁信号或场的罗盘传感器的输出的罗盘电路可操作以确定车辆的定向方位。 罗盘电路可操作以确定加热元件产生的磁性签名，该加热元件在加热元件供电时加热挡风玻璃的内部加热表面。 响应于确定加热元件被供电的罗盘电路可操作以补偿所感测的磁信号以确定车辆方向航向。 补偿来自确定的磁性签名。 罗盘电路可以通过应用从确定的磁性签名导出的偏移来补偿感测到的磁信号。

公开(公告)号：US10508918B2

公开(公告)日：2019-12-17

申请号：US15444819

申请日：2017-02-28

Applicant: MAGNA MIRRORS OF AMERICA, INC.

Inventor： Kenneth L. Schierbeek

IPC: G01C9/26 ,  G01C17/38 ,  B60R1/12 ,  H05B1/02 ,  G01C17/28 ,  B60R1/04 ,  H04N7/18

Abstract: A vehicle directional heading system suitable for use in a vehicle includes a forward viewing camera viewing through a heatable localized region of the windshield, which includes a heating element disposed thereat. A compass system includes a compass sensor and associated compass circuitry that, responsive to an output of the compass sensor indicative of sensed magnetic fields, is operable to determine a directional heading of the vehicle. When the heatable localized region is heated by an electrically resistive material of the heating element passing an applied electric current when the heating element is electrically powered, a magnetic signature is generated. The compass sensor of the compass system senses said magnetic signature, and the compass circuitry determines a vehicle directional heading of the vehicle that is compensated for the magnetic signature.

公开(公告)号：US20170167872A1

公开(公告)日：2017-06-15

申请号：US15444819

申请日：2017-02-28

Applicant: MAGNA MIRRORS OF AMERICA, INC.

Inventor： Kenneth L. Schierbeek

IPC: G01C17/38 ,  H04N7/18 ,  G01C17/28 ,  B60R1/12 ,  B60R1/04

CPC classification number: G01C17/38 ,  B60R1/04 ,  B60R1/12 ,  B60R2001/1215 ,  G01C17/28 ,  H04N7/183 ,  H05B1/0236

Abstract: A vehicle directional heading system suitable for use in a vehicle includes a forward viewing camera viewing through a heatable localized region of the windshield, which includes a heating element disposed thereat. A compass system includes a compass sensor and associated compass circuitry that, responsive to an output of the compass sensor indicative of sensed magnetic fields, is operable to determine a directional heading of the vehicle. When the heatable localized region is heated by an electrically resistive material of the heating element passing an applied electric current when the heating element is electrically powered, a magnetic signature is generated. The compass sensor of the compass system senses said magnetic signature, and the compass circuitry determines a vehicle directional heading of the vehicle that is compensated for the magnetic signature.

公开(公告)号：US09587942B2

公开(公告)日：2017-03-07

申请号：US14674396

申请日：2015-03-31

Applicant: MAGNA MIRRORS OF AMERICA, INC.

Inventor： Kenneth L. Schierbeek

IPC: G01C9/26 ,  G01C17/38 ,  B60R1/12 ,  H05B1/02 ,  G01C17/28

CPC classification number: G01C17/38 ,  B60R1/04 ,  B60R1/12 ,  B60R2001/1215 ,  G01C17/28 ,  H04N7/183 ,  H05B1/0236

Abstract: A compass system for a vehicle includes a compass sensor and compass circuitry. The compass sensor is disposed at or near an interior heated surface of a windshield of a vehicle equipped with the compass system. The compass circuitry, responsive to an output of the compass sensor indicative of sensed magnetic signals or fields, is operable to determine a directional heading of the vehicle. The compass circuitry is operable to determine a magnetic signature generated by a heating element that heats the interior heated surface of the windshield when the heating element is powered. The compass circuitry, responsive to a determination that the heating element is powered, is operable to compensate the sensed magnetic signals to determine the vehicle directional heading. The compensation is derived from the determined magnetic signature. The compass circuitry may compensate the sensed magnetic signals by applying an offset derived from the determined magnetic signature.

Abstract translation: 用于车辆的罗盘系统包括罗盘传感器和罗盘电路。 罗盘传感器设置在配备有罗盘系统的车辆的挡风玻璃的内部加热表面处或附近。 响应于指示感测的磁信号或场的罗盘传感器的输出的罗盘电路可操作以确定车辆的定向方位。 罗盘电路可操作以确定加热元件产生的磁性签名，该加热元件在加热元件供电时加热挡风玻璃的内部加热表面。 响应于确定加热元件被供电的罗盘电路可操作以补偿所感测的磁信号以确定车辆方向航向。 补偿来自确定的磁性签名。 罗盘电路可以通过应用从确定的磁性签名导出的偏移来补偿感测到的磁信号。