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1. (WO2018083686) BRAKE CIRCUIT LEAK DETECTION AND ISOLATION
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Pub. No.: WO/2018/083686 International Application No.: PCT/IB2017/058322
Publication Date: 11.05.2018 International Filing Date: 21.12.2017
IPC:
B25B 25/00 (2006.01) ,B60T 8/00 (2006.01) ,B60T 17/22 (2006.01) ,G01L 5/28 (2006.01) ,G01M 3/02 (2006.01) ,G01M 3/04 (2006.01) ,G01M 3/28 (2006.01)
B PERFORMING OPERATIONS; TRANSPORTING
25
HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; HANDLES FOR HAND IMPLEMENTS; WORKSHOP EQUIPMENT; MANIPULATORS
B
TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING, OR HOLDING
25
Implements for fastening, connecting, or tensioning of wire or strip
B PERFORMING OPERATIONS; TRANSPORTING
60
VEHICLES IN GENERAL
T
VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
8
Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
B PERFORMING OPERATIONS; TRANSPORTING
60
VEHICLES IN GENERAL
T
VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
17
Component parts, details, or accessories of brake systems not covered by groups B60T8/, B60T13/ or B60T15/170
18
Safety devices; Monitoring
22
Devices for monitoring or checking brake systems; Signal devices
G PHYSICS
01
MEASURING; TESTING
L
MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
5
Apparatus for, or methods of, measuring force, e.g. due to impact, work, mechanical power, or torque, adapted for special purposes
28
for testing brakes
G PHYSICS
01
MEASURING; TESTING
M
TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
3
Investigating fluid tightness of structures
02
by using fluid or vacuum
G PHYSICS
01
MEASURING; TESTING
M
TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
3
Investigating fluid tightness of structures
02
by using fluid or vacuum
04
by detecting the presence of fluid at the leakage point
G PHYSICS
01
MEASURING; TESTING
M
TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
3
Investigating fluid tightness of structures
02
by using fluid or vacuum
26
by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
28
for pipes, cables, or tubes; for pipe joints or seals; for valves
Applicants:
VEONEER NISSIN BRAKE SYSTEMS JAPAN CO. LTD. [JP/JP]; 840 Kokubu Ueda-shi Nagano-ken 386-0016, JP
Inventors:
SPIEKER, Arnold H.; US
Agent:
OLSON, Stephen T.; US
Priority Data:
15/341,57402.11.2016US
Title (EN) BRAKE CIRCUIT LEAK DETECTION AND ISOLATION
(FR) DÉTECTION ET ISOLATION DE FUITE DE CIRCUIT DE FREIN
Abstract:
(EN) A method for detecting the location of and isolating a leak in a braking system by simultaneously controlling a direct apply subsystem (DAS) and an isolated apply subsystem (IAS) to enable fluid communication between the IAS and the first circuit; to block fluid communication of the DAS with the first circuit; to enable fluid communication of the DAS with the second circuit; and to block fluid communication of the IAS with the second circuit. A sensed travel of an isolated apply component and a sensed fluid pressure developed by the IAS may be used to determine if the leak is present in the first circuit, while simultaneously using the sensed travel of a direct apply component of the DAS, and a sensed fluid pressure developed by the DAS, to determine if the leak is present in the second circuit.
(FR) L'invention concerne un procédé de détection de l'emplacement et d'isolement d'une fuite dans un système de freinage par commande simultanée d'un sous-système d'application directe (DAS) et d'un sous-système d'application isolé (IAS) pour permettre une communication fluidique entre l'IAS et le premier circuit; pour bloquer la communication fluidique du DAS avec le premier circuit; pour permettre la communication fluidique du DAS avec le second circuit; et pour bloquer la communication fluidique de l'IAS avec le second circuit. Une course détectée d'une composante d'application isolée et une pression de fluide détectée développée par l'IAS peuvent être utilisées pour déterminer si la fuite est présente dans le premier circuit, tout en utilisant simultanément la course détectée d'une composante d'application directe du DAS, et une pression de fluide détectée développée par le DAS, pour déterminer si la fuite est présente dans le second circuit.
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)