Bot having high speed stability
First Claim
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1. A method for transporting items in a storage and retrieval system with an autonomous transport vehicle, the method comprising:
- independently driving at least two drive wheels of the autonomous transport vehicle;
disposing a drive wheel encoder adjacent each drive wheel; and
identifying, with a controller in communication with the encoders, a kinematic state of the autonomous transport vehicle within the storage and retrieval system based only on incremental data received by the controller from the drive wheel encoders, independent of drive wheel slippage.
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Abstract
An autonomous transport vehicle for transporting items in a storage and retrieval system is provided. The autonomous transport vehicle includes at least two drive wheels and a controller, where each drive wheel is independently driven and a drive wheel encoder is disposed adjacent each drive wheel. The controller, in communication with the drive wheel encoders, is configured to determine a kinematic state of the autonomous transport vehicle within the storage and retrieval system based on incremental data from the drive wheel encoders only and independent of drive wheel slippage.
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13 Claims
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1. A method for transporting items in a storage and retrieval system with an autonomous transport vehicle, the method comprising:
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independently driving at least two drive wheels of the autonomous transport vehicle; disposing a drive wheel encoder adjacent each drive wheel; and identifying, with a controller in communication with the encoders, a kinematic state of the autonomous transport vehicle within the storage and retrieval system based only on incremental data received by the controller from the drive wheel encoders, independent of drive wheel slippage. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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Specification