Coverage robot mobility

US8600553B2 · kind B2 · utility

Assignee

• iRobot Corporation · US

Inventors

• Selma Svendsen · Melrose, US
• Daniel N. Ozick · Newton, US
• Christopher M. Casey · Lexington, US
• Deepak Ramesh Kapoor · Cupertino, US
• Tony L. Campbell · Pepperell, US
• Chikyung Won · Tewksbury, US
• Christopher John Morse · Malden, US
• Scott Thomas Burnett · Windham, US

Key dates

• Filing date: Jun 5, 2007
• Grant date: Dec 3, 2013
• Expiry date: Jun 3, 2031

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S901/50
• WIPO field: Furniture, games
• WIPO sector: Other fields

Abstract

An autonomous coverage robot includes a drive system, a bump sensor, and a proximity sensor. The drive system is configured to maneuver the robot according to a heading (turn) setting and a speed setting. The bump sensor is responsive to a collision of the robot with an obstacle in a forward direction. A method of navigating an autonomous coverage robot with respect to an object on a floor includes the robot autonomously traversing the floor in a cleaning mode at a full cleaning speed. Upon sensing a proximity of the object forward of the robot, the robot reduces the cleaning speed to a reduced cleaning speed while continuing towards the object until the robot detects a contact with the object. Upon sensing contact with the object, the robot turns with respect to the object and cleans next to the object, optionally substantially at the reduced cleaning speed.