Braking device

The braking device addresses valve closure failures by using an electric cylinder and control valves to monitor hydraulic pressure and piston position, effectively preventing brake fluid leaks and ensuring reliable braking performance.

JP2026092293APending Publication Date: 2026-06-05ADVICS CO LTD

Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
ADVICS CO LTD
Filing Date
2024-11-26
Publication Date
2026-06-05

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  • Figure 2026092293000001_ABST
    Figure 2026092293000001_ABST
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Abstract

The present invention provides a braking device capable of detecting valve closure failures in a hydraulic circuit. [Solution] The braking device 100 includes a control device 200 that performs a first determination control, which includes: a first pressurization process that opens the second retaining valve 74b and closes the first pressure reducing valve 77a, and controls the electric motor 513 of the electric cylinder 51 so that a predetermined servo pressure is generated while the second pressure reducing valve 77b is closed; a first adjustment process that, after the first pressurization process, controls the electric motor 513 of the electric cylinder 51 to maintain the servo pressure while opening the first pressure reducing valve 77a; and a first determination process that determines whether or not a fluid leakage event has occurred in the braking device 100 based on the change in piston position after the start of the first adjustment process.
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