Title:
ELECTRIC LINEAR ACTUATOR AND ELECTRIC BRAKE DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/132002
Kind Code:
A1
Abstract:
Provided is an electric linear actuator in which a power storage means is used as a power source when there is a fault in a power supply device, making it possible to constitute a highly reliable redundant system using a means that is less expensive than providing a plurality of power supply devices. A control device (3) for controlling a linear actuator body (2) is provided with, in addition to an arithmetic unit (10) for performing control computation for controlling an electric motor (6), a step-down means (13) for reducing the voltage of a power supply device (4) and operating the arithmetic unit (10), and a power storage means (14). The control device (3) also has a discharge restriction means (12) configured to supply electric power from the power storage means (14) to the electric motor (6) if the electricity supply capability of the power supply device (4) is lower than a prescribed value.
Inventors:
MASUDA YUI (JP)
Application Number:
PCT/JP2018/048466
Publication Date:
July 04, 2019
Filing Date:
December 28, 2018
Export Citation:
Assignee:
NTN TOYO BEARING CO LTD (JP)
International Classes:
H02P4/00; B60R16/033; B60T13/74; B60T17/18; H02J7/00; H02P29/00
Foreign References:
| JP2015515251A | 2015-05-21 | |||
| JP2001010482A | 2001-01-16 | |||
| JP2010016964A | 2010-01-21 |
Attorney, Agent or Firm:
SUGIMOTO, Shuji et al. (JP)
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