公开(公告)号：US20160026185A1

公开(公告)日：2016-01-28

申请号：US14776138

申请日：2014-03-17

Applicant: MTD PRODUCTS INC

Inventor： Steven W. Smith ,  Micah Wolf ,  Maynard S. Guadiz

IPC: G05D1/02 ,  G01B11/14

CPC classification number: G05D1/0231 ,  G01B11/14 ,  G05D1/0244 ,  G05D1/0259

Abstract: The disclosed technology relates to a method and system for localizing and confining an autonomous mobile work system or systems for performing work in a user defined space is disclosed. The system can include two or more variable reflective base stations at first and second locations that can modify their optical or electromagnetic reflectivity based upon either an external command via wired or wireless communications interface, or automatically on a regular or asynchronous time schedule under programmed or user settable control. The system also can include one or more autonomous mobile work systems capable of sensing the state of the variable reflectance base stations via sensors such as electromagnetic or optical sensors capable of measuring distance to the reflective base stations.

Abstract translation: 所公开的技术涉及用于定位和限制用于在用户定义的空间中执行工作的自主移动工作系统或系统的方法和系统。 该系统可以包括在第一和第二位置处的两个或更多个可变反射基站，其可以基于经由有线或无线通信接口的外部命令来修改其光学或电磁反射率，或者在编程或用户 可设置控制。 该系统还可以包括能够经由诸如能够测量到反射基站的距离的电磁或光学传感器的传感器来感测可变反射基站的状态的一个或多个自主移动工作系统。

公开(公告)号：US09214803B2

公开(公告)日：2015-12-15

申请号：US14620363

申请日：2015-02-12

Applicant: MTD Products Inc

Inventor： Maynard S. Guadiz

IPC: H02H7/09 ,  H02H7/06 ,  H02H3/20

CPC classification number: H02P9/006 ,  A01D34/64 ,  F02D29/06 ,  H02H3/202 ,  H02H7/065 ,  H02H7/067 ,  H02H7/09 ,  H02P9/04 ,  H02P2101/45

Abstract: Disclosed is an alternator overvoltage protection circuit having a TRIAC and a MOSFET. The TRIAC is electrically connected to the MOSFET and the TRIAC is electrically connected to a magneto. The TRIAC is configured to ground the magneto when triggered by the MOSFET. The MOSFET is electrically connected to an alternator and configured to conduct when the alternator operates in an overvoltage condition. Also disclosed is a method of alternator overvoltage protection for a piece of outdoor power equipment, the method including providing a TRIAC and an alternator rotated by an engine having a magneto, wherein the alternator outputs a voltage when rotated by the engine. The method further includes configuring the TRIAC to ground the magneto when the alternator operates in an overvoltage condition, thereby disabling the magneto, which stops the rotation of the engine and stops the alternator from outputting voltage.

公开(公告)号：US20140192442A1

公开(公告)日：2014-07-10

申请号：US14147223

申请日：2014-01-03

Applicant: MTD Products Inc

Inventor： Maynard S. Guadiz

IPC: H02H7/06

CPC classification number: H02P9/006 ,  A01D34/64 ,  F02D29/06 ,  H02H3/202 ,  H02H7/065 ,  H02H7/067 ,  H02H7/09 ,  H02P9/04 ,  H02P2101/45

Abstract: Disclosed is an alternator overvoltage protection circuit having a TRIAC and a MOSFET. The TRIAC is electrically connected to the MOSFET and the TRIAC is electrically connected to a magneto. The TRIAC is configured to ground the magneto when triggered by the MOSFET. The MOSFET is electrically connected to an alternator and configured to conduct when the alternator operates in an overvoltage condition. Also disclosed is a method of alternator overvoltage protection for a piece of outdoor power equipment, the method including providing a TRIAC and an alternator rotated by an engine having a magneto, wherein the alternator outputs a voltage when rotated by the engine. The method further includes configuring the TRIAC to ground the magneto when the alternator operates in an overvoltage condition, thereby disabling the magneto, which stops the rotation of the engine and stops the alternator from outputting voltage.

Abstract translation: 公开了具有TRIAC和MOSFET的交流发电机过电压保护电路。 TRIAC电连接到MOSFET，并且TRIAC电连接到磁电。 TRIAC配置为在由MOSFET触发时对磁体进行接地。 MOSFET与交流发电机电连接，并配置为在交流发电机工作在过电压状态时导通。 还公开了一种用于室外电力设备的交流发电机过电压保护的方法，该方法包括提供由具有磁电机的发动机旋转的TRIAC和交流发电机，其中交流发电机在由发动机旋转时输出电压。 该方法还包括在交流发电机工作在过电压状态下配置TRIAC以使磁铁接地，从而禁止磁体，从而停止发动机的旋转并停止交流发电机输出电压。