Title:
VEHICULAR BRAKING DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/200664
Kind Code:
A1
Abstract:
The present invention comprises: a first pressurizing part 2 having a cylinder 21, a piston 23 slidable inside the cylinder 21, an electric motor 22 for driving the piston 23, and an output chamber 24 demarcated by the cylinder 21 and the piston 23, being configured in such a manner that the connection state between the output chamber 24 and a reservoir 45 is switched between a communicating state and a blocked state according to the position of the piston 23, and being capable of pressurizing a fluid by reducing the volume of the output chamber 24 via the movement of the piston 23 in one direction oriented along the axis thereof; a pressure sensor 73 for detecting the pressure of the output chamber 24; and an estimation unit 91 causing the piston 23 to move and executing a position estimation processing whereby the switching position of the piston 23, at which the connection state between the output chamber 24 and the reservoir 45 is switched, is estimated on the basis of a detection value from the pressure sensor 73.
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Inventors:
SAKATA YASUNORI (JP)
Application Number:
PCT/JP2021/012882
Publication Date:
October 07, 2021
Filing Date:
March 26, 2021
Export Citation:
Assignee:
ADVICS CO LTD (JP)
International Classes:
B60T13/138; B60T8/17
Foreign References:
| JP2018508415A | 2018-03-29 | |||
| JP2016147614A | 2016-08-18 | |||
| JP2008174007A | 2008-07-31 |
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