摘要:
Electro-hydraulic control system for a motor-vehicle dual-clutch transmission with six or seven forward gears and reverse gear, comprising a hydraulic control circuit (12) and a gear shift control device (10) including four shift forks (14,16,18,20), each operatively associated to a respective engagement sleeve (112,114,116,118) of the transmission to cause this latter to move between first and second engagement positions through an intermediate neutral position, and an actuating unit (22) comprising four double-acting hydraulic actuators (24,26,28,30) arranged to control each the displacement of a respective shift fork (14,16,18,20), characterized in that the hydraulic control circuit (12) comprises a supply unit (50), a distributor valve (52) for selecting every time one of the four hydraulic actuators (24,26,28,30), a pilot solenoid valve (62) for controlling the distributor (52), and two first solenoid valves (54,56) for controlling the hydraulic actuator (24,26,28,30) selected by the distributor (52).
摘要:
Es wird ein Fahrzeuggetriebe (1) mit einer antriebsseitig an einem Getriebegehäuse (2) angeordneten Kupplungsglocke (3) und mit pneumatischen Komponenten (4) zum Betätigen von Schaltelementen (5) des Fahrzeuggetriebes (1) und/oder einer Anfahrkupplung (6). In der Kupplungsglocke (3) ist eine Trennwand (7) vorgesehen, welche im Innenraum der Kupplungsglocke (3) getriebeseitig von der Trennwand (7) einen Entlüftungsraum (8) ausbildet, wobei an der Kupplungsglocke (3) zumindest eine Austrittsöffnung (9) vorgesehen ist, die den Entlüftungsraum (8) mit der Umgebung verbindet, und wobei die pneumatischen Komponenten (4) derart in dem Getriebegehäuse (2) angeordnet sind, dass Abluft von den pneumatischen Betätigungselementen (4) durch den Entlüftungsraum (8) und die Austrittsöffnung (9) in die Umgebung strömen kann.
摘要:
The invention relates to an infinitely-variable transmission with double mode power transmission for a motor vehicle, provided with a combustion engine, comprising a first power transmission path with a composite epicyclic geartrain (3a, 3b) connecting the combustion engine (1) to the vehicle wheels (2), a second power transmission path with simple epicyclic geartrain (4), two electric motors (5, 6) providing a continuous speed variator and a second simple epicyclic geartrain (7) for mode change as well as an engagement/disengagement unit (16, 17) which can block or release a mode-changing body in the second epicyclic geartrain, according to the operating mode, whereby the engagement/disengagement body has a sliding sleeve (27) with a dog tooth (28), which can be displaced by means of a hydraulic actuator (42) and with two sets of dog teeth (24, 26) fixed to a mode-changing body in the second epicyclic geartrain (7).
摘要:
Electro-hydraulic control system for a motor-vehicle dual-clutch transmission with six or seven forward gears and reverse gear, comprising a hydraulic control circuit (12) and a gear shift control device (10) including four shift forks (14,16,18,20), each operatively associated to a respective engagement sleeve (112,114,116,118) of the transmission to cause this latter to move between first and second engagement positions through an intermediate neutral position, and an actuating unit (22) comprising four double-acting hydraulic actuators (24,26,28,30) arranged to control each the displacement of a respective shift fork (14,16,18,20), characterized in that the hydraulic control circuit (12) comprises a supply unit (50), a distributor valve (52) for selecting every time one of the four hydraulic actuators (24,26,28,30), a pilot solenoid valve (62) for controlling the distributor (52), and two first solenoid valves (54,56) for controlling the hydraulic actuator (24,26,28,30) selected by the distributor (52).
摘要:
The invention relates to a vehicle gearbox, whose housing (5) comprises a region, which is equipped with a connection plate (7) that can be permanently fixed to the housing (5) and that comprises receiving areas for at least some of the actuating elements that actuate the torque-transmitting components and/or some of the actuating elements that actuate the shift device of the gearbox. The one or more required actuating cylinders (3) is or are configured from a first cylinder part, provided in the connection plate (7) and from a second cylinder part, provided in the gearbox housing (5). In said gearbox, the stop ring (10) that is provided in the cylinder (3) is configured in such a way that the sealing contact faces of the piston (2) in the gearbox housing (5) and/or the connection plate (7) are formed by a liner-type extension (10', 10'') of the stop ring (10).
摘要:
Die Erfindung betrifft ein Getriebe (1) mit einer Antriebswelle (2), die einen Satz Antriebsräder (3) aufweist; mit einer Abtriebswelle (4), die einen Satz Schalträder (5) aufweist, die mit den Antriebsrädern (3) zur Bildung einer schaltbaren Räderpaarung (6) zusammenwirken, und mit einem Schaltsystem (7) zur wahlweisen Schaltung eines der Radpaare (6), wobei das Schaltsystem (7) folgendes aufweist: zumindest einen Hydraulikkanal (8), der in Längsrichtung der Abtriebswelle (4) in dieser verläuft; pro Räderpaarung zumindest ein hydraulisch betätigbares Schaltelement (9), das quer zum Hydraulikkanal (8) verschieblich in der Abtriebswelle (4) geführt ist und mit einem der jeweiligen Radpaarung (6) zugeordneten Synchronring (10) zusammenwirkt.