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1. (WO2018077829) VEHICLE DRIVE ASSISTANCE SYSTEM COMPRISING AN OPEN HYDRAULIC CIRCUIT
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Pub. No.: WO/2018/077829 International Application No.: PCT/EP2017/077066
Publication Date: 03.05.2018 International Filing Date: 24.10.2017
IPC:
F16H 61/4069 (2010.01) ,F16H 61/4148 (2010.01)
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16
ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
H
GEARING
61
Control functions within change-speed- or reversing-gearings for conveying rotary motion
38
Control of exclusively fluid gearing
40
hydrostatic
4069
Valves related to the control of neutral, e.g. shut off valves
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16
ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
H
GEARING
61
Control functions within change-speed- or reversing-gearings for conveying rotary motion
38
Control of exclusively fluid gearing
40
hydrostatic
4148
Open loop circuits
Applicants:
POCLAIN HYDRAULICS INDUSTRIE [FR/FR]; Route de Compiègne 60410 Verberie, FR
Inventors:
HASENAU, Johannes; FR
RAUSCHER, Andréas; FR
Agent:
REGIMBEAU; 20, rue de Chazelles 75847 Paris Cedex 17, FR
Priority Data:
166032825.10.2016FR
Title (EN) VEHICLE DRIVE ASSISTANCE SYSTEM COMPRISING AN OPEN HYDRAULIC CIRCUIT
(FR) SYSTÈME D'ASSISTANCE À L'ENTRAÎNEMENT DE VÉHICULE COMPRENANT UN CIRCUIT HYDRAULIQUE OUVERT
Abstract:
(EN) The present invention relates to a vehicle drive assistance system comprising at least one pump-forming hydraulic machine (19), at least one motor-forming hydraulic machine (130, 140) and an open hydraulic circuit (100) passing through a tank (13) and comprising a suction duct (11) extending from the tank (13) to an inlet of the pump (19), a supply duct (15) extending from the outlet of the pump (19) to the inlet of the motor (130, 140) and a return duct (122) extending from the outlet of the motors (130, 140) to the tank (13), characterized by the fact that the motor (130, 140) is a disengageable motor and by the fact that the system comprises a restriction-forming element (180) that creates a pressure drop on the return duct (122) and a distributor (190) suitable for selectively connecting, to the motor casing (130, 140), the part of the return duct (122) situated upstream or respectively downstream from the restriction-forming element (180).
(FR) La présente invention concerne un système d'assistance à l'entraînement d'un véhicule comprenant au moins une machine hydraulique formant pompe (19), au moins une machine hydraulique formant moteur (130, 140) et un circuit hydraulique (100) ouvert passant par un réservoir (13) et comprenant un conduit d'aspiration (11) allant du réservoir (13) vers une entrée de la pompe (19), un conduit d'alimentation (15) allant de la sortie de la pompe (19) vers l'entrée du moteur (130, 140) et un conduit de retour (122) allant de la sortie des moteurs (130, 140) vers le réservoir (13), caractérisé par le fait que le moteur (130, 140) est un moteur débrayable et par le fait que le système comprend un élément (180) formant restriction et créant une perte de charge sur le conduit retour (122) et un distributeur (190) adapté pour relier sélectivement au carter du moteur (130, 140), la partie du conduit retour (122) située en amont ou respectivement en aval de l'élément formant restriction (180).
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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: French (FR)
Filing Language: French (FR)