Abstract:
A vehicle (21) comprises a drive source E that drives the wheels L via a transmission system T2. The transmission system T2 has an epicyclic gearing P with three rotational members s, a, c of which a first rotational member a is connected to the drive source E, a second rotational member c is connected to the wheels L, via a first reduction R1, and a final reduction R2, and a third rotational member s is connected to a brake B. The brake B constitutes reaction means for balancing torque. The transmission system T2 furthermore comprises a transmission A1 which is parallel to the epicyclic gearing P and a transmission A2 which is series with the epicyclic gearing P. Moreover, the transmission system has a lock-up clutch K which can connect the first rotational member a to the second rotational member c. This transmission system T2 enables shifting between the various transmission ratios without torque interruption, using only one brake. The transmission A2 can directly be connected to the load L via the lock-up clutch K. Besides, transmission A2 can be connected to the load L by means of the ‘braked ’ planetary set P.
Abstract:
A drive has a drive source and a continuously variable transmission, with an outgoing shaft having a first gear wheel. A clutch is present between the drive source and the ingoing shaft. The outgoing shaft of the transmission is connected to a gear wheel connected to a differential via a drive line for driving forwards. The drive line has an intermediate shaft with thereon a second gear wheel, which is interlocked with the first gear wheel and the third gear wheel, which is interlocked with the gear wheel. For reversing, the drive line can be interrupted by means of a disengagement and the drive is provided with a further drive line between the gear wheel that is connected to the differential and the outgoing shaft of the transmission.
Abstract:
A vehicle (1) has an epicyclic gearing (3) with three rotational members (5, 7, 9). Rotational member (9) is connected to a load formed by the wheels (17) of a vehicle. Rotational member (5) is connected to a flywheel (11) and rotational member (7) is connected to an engine (13). The vehicle (1) furthermore comprises a transmission-unit (19), embodied either as a conventional or as a automated manual transmission-unit, with two in/outputs (21, 23). In/output (21) is connected to the rotational member (7) and in/output (23) is connected to the third rotational member (9). A force-closed clutch (25) with slip capacity is located between in/output (21) and rotational member (7). With this transmission-system, the wheels (17) remain driven by the engine (13), also during disengagement of the clutch (25).