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1. (WO2018204578) TANDEM AXLE WITH DISCONNECT COAST
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Pub. No.: WO/2018/204578 International Application No.: PCT/US2018/030790
Publication Date: 08.11.2018 International Filing Date: 03.05.2018
IPC:
B60W 10/119 (2012.01) ,B60W 10/14 (2012.01) ,B60W 10/06 (2006.01) ,B60W 30/18 (2012.01) ,B60K 17/36 (2006.01)
B PERFORMING OPERATIONS; TRANSPORTING
60
VEHICLES IN GENERAL
W
CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
10
Conjoint control of vehicle sub-units of different type or different function
119
including control of all-wheel-driveline-means, e.g. transfer gears or clutches for dividing torque between front and rear axles
B PERFORMING OPERATIONS; TRANSPORTING
60
VEHICLES IN GENERAL
W
CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
10
Conjoint control of vehicle sub-units of different type or different function
12
including control of differentials
14
Central differentials for dividing torque between front and rear axles
B PERFORMING OPERATIONS; TRANSPORTING
60
VEHICLES IN GENERAL
W
CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
10
Conjoint control of vehicle sub-units of different type or different function
04
including control of propulsion units
06
including control of combustion engines
B PERFORMING OPERATIONS; TRANSPORTING
60
VEHICLES IN GENERAL
W
CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
30
Purposes of road vehicle drive control systems not related to the control of a particular sub-unit, e.g. of systems using conjoint control of vehicle sub-units
18
Propelling the vehicle
B PERFORMING OPERATIONS; TRANSPORTING
60
VEHICLES IN GENERAL
K
ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS; AUXILIARY DRIVES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST, OR FUEL SUPPLY, OF PROPULSION UNITS, IN VEHICLES
17
Arrangement or mounting of transmissions in vehicles
36
for driving tandem wheels
Applicants:
DANA HEAVY VEHICLE SYSTEMS GROUP, LLC [US/US]; 3939 Technology Drive PO Box 1000 Maumee, OH 43537, US
Inventors:
DAVIS, Mark, A.; US
WILLFORD, George, A.; US
BRAMER, Andrew, T.; US
Agent:
RUNKLE, Donavan, A.; US
MERRILL, Jacob, D.; US
SCHURR, Donald, A.; US
HAMILTON, Mark, M.; US
EVANS, Stephen, P.; US
Priority Data:
62/500,58503.05.2017US
Title (EN) TANDEM AXLE WITH DISCONNECT COAST
(FR) ESSIEU TANDEM AVEC ROUE LIBRE DE DÉCONNEXION
Abstract:
(EN) Provided herein is a method of disconnecting and connecting elements of a tandem axle system (100) drivingly connected to an engine (206) and transmission (204) of a vehicle, the method including the steps of: providing a tandem axle system (100) having: an inter-axle differential and clutch assembly (102) in driving engagement with the engine, wherein the inter-axle differential and clutch assembly includes an inter-axle differential (108) and an inter-axle differential lock (110); a forward axle assembly (104) including a differential assembly (116), a disconnect assembly (114) and two axle half shafts (104a, 104b); and a rear axle assembly (106) including a differential assembly (120), a disconnect assembly (122) and two axle half shafts (106a, 106b); providing a control system (300) in communication with the inter-axle differential lock, the disconnect assemblies and the engine; detecting (402) a disconnect opportunity; commanding (404) the engine torque set to zero; disconnecting (406) the axle half shafts of the forward and rear axle assemblies; engaging (408) the inter-axle differential lock; and allowing (410) the engine to idle.
(FR) L'invention concerne un procédé de déconnexion et de connexion d'éléments d'un système d'essieu tandem (100) connecté par entraînement à un moteur (206) et à une transmission (204) d'un véhicule, le procédé comprenant les étapes consistant à : fournir un système d'essieu tandem (100) ayant : un ensemble différentiel et embrayage inter-essieux (102) en prise d'entraînement avec le moteur, l'ensemble différentiel et embrayage inter-essieux comprenant un différentiel inter-essieux (108) et un verrou différentiel inter-essieux (110) ; un ensemble essieu avant (104) comprenant un ensemble différentiel (116), un ensemble de déconnexion (114) et deux demi-arbres d'essieu (104a, 104b) ; et un ensemble essieu arrière (106) comprenant un ensemble différentiel (120), un ensemble de déconnexion (122) et deux demi-arbres d'essieu (106a, 106b) ; fournir un système de commande (300) en communication avec le verrou différentiel inter-essieux, les ensembles de déconnexion et le moteur ; détecter (402) une opportunité de déconnexion ; commander (404) le couple moteur réglé à zéro ; déconnecter (406) les demi-arbres d'essieu des ensembles essieu avant et arrière ; mettre en prise (408) le verrou différentiel inter-essieux ; et permettre (410) au moteur de tourner au ralenti.
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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)