MAN Truck & Bus has expanded its selection of gearboxes for its MAN and Neoplan. Since last May the MAN Lion’s Coach, Neoplan Cityliner and Tourliner have been available with the EcoLife Coach torque converter gearbox. Because of the maximum torque levels of 2,100 Nm (420 hp) and 2,300 Nm (460 hp) an automatic torque converter can be combined with the optimised Euro 6 driveline with the MAN D26 engine. At the same time MAN improved its MAN TipMatic Coach gearbox.
Neither hairpin bends on mountain roads nor urban traffic at low speeds will compromise drivers’ or passengers’ comfort. The hydrodynamic torque converter boosts the engine torque, making driving off and accelerating a smooth and relaxed process free of clutch wear. The power flow is not interrupted during gear changes, which increases comfort and also saves fuel in areas where traction interruptions would be especially consequential. The TopoDyn Life control software, specially developed for the EcoLife gearbox, dynamically adapts the shifting points to the route profile – this is calculated on an ongoing basis by factoring in the topography, current load and acceleration values, and variable driving resistance. Two overdrives facilitate lower engine speeds and reduced noise levels at higher speeds.
From the end of this year onwards, the coaches will be supplied with the new TipMatic Coach as standard, starting at 460 hp. The changes include better moving-off behaviour, thanks in part to the new tilt detector and an improved gearbox control unit with MAN’s specially formulated gear shift strategy. This strategy always selects the optimum gear and engine speed for moving off based on the actual weight of the coach and the current topography. The refined SmartShifting system ensures a quick shifting process in all gears. The software uses data from the accelerator pedal position, vehicle mass and driving resistance calculations. The engine brake is combined with a secondary retarder as standard for high continuous brake performance. This produces a maximum of 500 kW and 4,000 Nm of braking torque. The new MAN TipMatic Coach is also prepared for high engine performance with a maximum input torque of 2,800 Nm.