Title:
ELECTRIC BRAKE DEVICE
Document Type and Number:
WIPO Patent Application WO/2017/033803
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide an electric brake device that is capable of reducing operating noise and reducing power consumption. This electric brake device (DB) is provided with an electric brake actuator (1) and a control device (2). The control device (2) includes a brake control computer (18) that tracks and controls braking force to achieve a target braking force assigned by a host electronic control unit (ECU) (17), a brake maintenance current estimator (19) that maintains motor current at a constant value, and a switching control unit (20) that switches between the brake control computer (18) and the brake maintenance current estimator (19). When the conditions that the absolute value of the change rate of the target braking force is equal to or less than a specified value and the braking force is in a tracking state are satisfied, the switching control unit (20) switches from the brake control computer (18) to the brake maintenance current estimator (19), which maintains the motor current at a constant value.
Inventors:
MASUDA YUI (JP)
Application Number:
PCT/JP2016/073932
Publication Date:
March 02, 2017
Filing Date:
August 16, 2016
Export Citation:
Assignee:
NTN TOYO BEARING CO LTD (JP)
International Classes:
B60T13/74; B60T8/17; F16D65/18; F16D66/00; F16D121/24
Foreign References:
| JP2015145158A | 2015-08-13 | |||
| JP2008184023A | 2008-08-14 |
Other References:
See also references of EP 3339121A4
Attorney, Agent or Firm:
SUGIMOTO, Shuji et al. (JP)
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