US 12,084,010 B2
Method and system of hydraulic braking for vehicle with coupling
André Prigent, Verberie (FR)
Assigned to POCLAIN HYDRAULICS INDUSTRIE, Verberie (FR)
Appl. No. 17/255,494
Filed by POCLAIN HYDRAULICS INDUSTRIE, Verberie (FR)
PCT Filed Jun. 25, 2019, PCT No. PCT/FR2019/051556
§ 371(c)(1), (2) Date Dec. 23, 2020,
PCT Pub. No. WO2020/002823, PCT Pub. Date Jan. 2, 2020.
Claims priority of application No. 1855858 (FR), filed on Jun. 28, 2018.
Prior Publication US 2021/0269003 A1, Sep. 2, 2021
Int. Cl. B60T 13/14 (2006.01); B60T 8/32 (2006.01); B60T 13/68 (2006.01)
CPC B60T 13/148 (2013.01) [B60T 8/323 (2013.01); B60T 13/686 (2013.01); B60T 2250/04 (2013.01); B60T 2270/406 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A hydraulic braking system for a coupling of a vehicle, wherein
the vehicle comprises a hydraulic supply circuit and a hydraulic control circuit,
the coupling comprises a hydraulic braking circuit, linked via connectors to the hydraulic supply circuit and to the hydraulic control circuit of the vehicle, and a hydraulic accumulator suitable for delivering a braking pressure to braking means of the coupling,
the system comprising a driving device configured in such a way that, when
the vehicle is stopped, and
the pressure inside the hydraulic accumulator is less than or equal to a threshold pressure value,
the driving device increases the pressure of the hydraulic accumulator via the hydraulic control circuit,
wherein the driving device is configured in such a way as to not increase the pressure of the hydraulic accumulator if a test signal is actuated.