ZF EcoLife 2 Automatic Transmission for Buses

ZF presents the latest generation of its proven automatic transmission system for buses, EcoLife 2. 

• Lighter, more efficient and robust, and easier to maintain
• Provides fuel savings of up to 3%
• Offers stop-start capability for all model variants
• Optimized cooling package reduces wear
• Input torque of up to 2,000 Nm improves shift quality to enhance operator and passenger comfort
• Features six-stage planetary gearset with torque converter and primary retarder
• Torque converter with new torsional damper enables fast and smooth shifting
• Torque converter and torsional damper satisfying trend toward low engine and transmission speeds which are important for efficient operation
• Torque converter transmits fewer engine vibrations to both transmission and complete drivetrain for increased comfort
• Planetary gearset makes it possible to increase the total gear ratios from 5,469 to 5,727, necessary for increased mechanical power transmission and thus for greater efficiency
• Special coating on lamellar clutch further reduces internal transmission losses and optimizes cooling
• Integrated stainless-steel heat exchanger is mounted behind the transmission and triple-ducted, eliminating the need for an additional container to reduce weight by 10 kg and increase ease of maintenance 
• Control software includes coasting function that contributes to fuel savings and can be adapted to various engine characteristics
• Offers simpler assembly and easier diagnostics