Invention Grant
- Patent Title: Travelling vehicle
- Patent Title (中): 旅行车
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Application No.: US14112553Application Date: 2012-03-07
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Publication No.: US08825331B2Publication Date: 2014-09-02
- Inventor: Takeshi Muranaka
- Applicant: Takeshi Muranaka
- Applicant Address: JP Kyoto
- Assignee: Murata Machinery, Ltd.
- Current Assignee: Murata Machinery, Ltd.
- Current Assignee Address: JP Kyoto
- Agency: Keating & Bennett, LLP
- Priority: JP2011-094009 20110420
- International Application: PCT/JP2012/055779 WO 20120307
- International Announcement: WO2012/144278 WO 20121026
- Main IPC: B60T8/17
- IPC: B60T8/17 ; B60T8/32 ; B60T13/66 ; B65G1/04

Abstract:
In a stacker crane, servomotors are travel motors causing a vehicle main body to travel, and include brakes. A travel controller includes a malfunction detecting unit to detect malfunctions in the servomotors, and a deceleration pattern storage unit to store deceleration patterns based on combinations of some of the servomotors. If a malfunction with a servomotor is detected by the malfunction detecting unit, the malfunctioning servomotor is no longer subject to deceleration control, a deceleration pattern including a combination of normal servomotors is read from the deceleration pattern storage unit, and then braking control is performed by using this deceleration pattern.
Public/Granted literature
- US20140039769A1 TRAVELLING VEHICLE Public/Granted day:2014-02-06
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