公开(公告)号：WO2020131615A1

公开(公告)日：2020-06-25

申请号：PCT/US2019/066214

申请日：2019-12-13

Applicant: MTD PRODUCTS INC

Inventor： GUADIZ, Maynard S.

IPC: H02P3/02

Abstract: A self-powered motor braking mechanism (24) includes a dedicated power source (26) sized for braking the respective motor (14) and a dedicated braking circuitry (50) configured to provide hybrid braking of the motor to a targeted stop. The motor braking circuitry is configured, in the event of a loss of primary power driving the motor, to provide a combination of two or more of dynamic braking, active braking and active position control to achieve zero speed of the motor by a target stopping time.

公开(公告)号：WO2014145996A1

公开(公告)日：2014-09-18

申请号：PCT/US2014/030863

申请日：2014-03-17

Applicant: MTD PRODUCTS INC

Inventor： SMITH, Steven W. ,  WOLF, Micah ,  GUADIZ, Maynard S.

IPC: G05D1/02

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：EP3582057A1

公开(公告)日：2019-12-18

申请号：EP19173180.1

申请日：2014-03-17

Applicant: MTD Products Inc

Inventor： SMITH, Steven W. ,  WOLF, Micah ,  GUADIZ, Maynard S.

IPC: G05D1/02

Abstract: An autonomous mobile work system for performing work in a designated area includes a variable reflectivity base station configured to change its reflectivity, an autonomous mobile work device including at least one sensor, and a fixed object. The variable reflectivity base station includes a radar reflector having a variable radar cross section. The autonomous mobile work system is configured to provide a location of the variable reflectivity base station, and a location of the fixed object, to the autonomous mobile work device. The autonomous mobile work device is configured to calculate a distance to the variable reflectivity base station, and a distance to the fixed object, and to determine a location of the autonomous mobile work device based on the provided locations and the calculated distances.

公开(公告)号：EP3900174A1

公开(公告)日：2021-10-27

申请号：EP19836383.0

申请日：2019-12-13

Applicant: MTD PRODUCTS INC.

Inventor： GUADIZ, Maynard S.

IPC: H02P3/02

公开(公告)号：EP2972627B1

公开(公告)日：2019-05-08

申请号：EP14724219.2

申请日：2014-03-17

Applicant: MTD Products Inc

Inventor： SMITH, Steven W. ,  WOLF, Micah ,  GUADIZ, Maynard S.

IPC: G05D1/02

公开(公告)号：EP2972627A1

公开(公告)日：2016-01-20

申请号：EP14724219.2

申请日：2014-03-17

Applicant: MTD Products Inc.

Inventor： SMITH, Steven W. ,  WOLF, Micah ,  GUADIZ, Maynard S.

IPC: G05D1/02

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.