ZF DIRECT DRIVE with Converter Lock-Up clutch and other components of the ZF-Efficiency Package increase fuel savings, reduce emissions and extend lifetime.
The easy handling of ZF fully automatic transmissions and high tech axle systems support the driver in all working situations. The result is a significant increase of productivity relating to the ZF motto “ZF is Efficiency”.
In loaders the ZF-Powertrain management provides the efficiency which is required under any working condition. Wheel loaders are amongst the most purchased and technically most demanding
off-road vehicles. The efficiency of a wheel loader is shown in the working cycle: An intelligent driveline system always makes the power available where it is needed. (fig 1)
There is a great value in ZF innovations! They produce advantages in equal measures for the driver, operator and manufacturer. Topics such as consumption savings, comfort or ecological compatibility are of increasing importance with construction machines and construction site vehicles. ZF is decisive in pushing development forward in driveline and chassis technology.
ZF is a renowned specialist for driveline technology and recognized worldwide as leading systems supplier for off-road machinery. The demands on these vehicle types are high: fast work with millimeter accuracy and highest productivity combined with reduced operating costs. ZF underlines its systems competence with the EFFICIENCY PACKAGE which includes many benefits due to perfectly matched components. The field of application mainly comprises the important wheel loader, grader, diesel and gas lift truck market. The options of the EFFICIENCY PACKAGE provide increased productivity and enhanced operating and driving comfort for the operator associated with a reduction of the operating and maintenance costs for the vehicle owner. Full utilization of the EFFICIENCY PACKAGE allows fuel savings of up to 15%. (fig 2)
For many years already, ZF driveline and chassis systems have proven themselves in meeting the challenges of the market. With the EFFICIENCY PACKAGE ZF consolidates its competence in the transmission, axle and software development, thus offering more than the sum of individual advantages. This approach makes it possible to reconcile the frequently conflicting demands for:
Following are the modules of the EFFICIENCY PACKAGE in detail:
This proven and tested fully automatic powershift transmission system has been optimized for different construction machinery types and offers the innovative feature of five instead of four gears for wheel loader applications. Therefore, the noise-optimized transmission allows even more comfortable and easier handling, high shifting quality and flexibility. Moreover, the operating costs can be further reduced. The ZF ERGOPOWER provides additional possibilities for connecting an electronic driveline management, thus enabling vehicle-specific controls.
ZF DIRECT DRIVE
The ERGOLOCKUP ensures that at low speeds already the ERGOPOWER converter lock-up clutch is applied by modulation via the software. The optimum effect of this function is of particular benefit to transmissions with five gears, since in this case the converter lock-up clutch can be kept closed when shifting gears. Furthermore the gear ratio steps are optimized for excellent driving comfort and improved efficiency in general. In applications for grader this feature distinguishes itself with 8 forward and 4 backward gears.
Advantage: Depending on the application conditions, the fuel consumption can be reduced by 10% to 15%. This corresponds depending on operation conditions with a saving of approx.
2.5 liters/hour. Considering an average annual performance of 2,000 operating hours and a fleet of 10 vehicles, this means
50,000 liters of fuel saving per year. In addition, a lower engine speed further reduces the noise emission and improves the lifetime.
This feature for axle control offers a differential lock management which governs the interwheel differential locks in wheel loaders and the interaxle differential locks in articulated dump trucks. The ERGOPOWER transmission control provides automatic engagement and disengagement of the powershift differentials. Previously, the differential locks were only engaged depending on the operator. Today, they are always engaged unless they would disturb the operation. No manual actuation is required.
Advantages: This innovation protects the drive system components and the tires whilst offering 100% tractive effort. It also contributes to a significant fuel saving. Moreover, ERGOTRACTION improves the cross-country mobility and increases the performance. Vehicle handling is more comfortable and easy. Protection against abuse is also guaranteed.
ZF POWERINCH – Intelligent Clutch Cut-Off Function
The ICCO dynamically adjusts the clutch cut-off point depending on transmission output torque and brake pressure. It enables the vehicle drawbar pull via the brake pedal, independent of engine speed. The ICCO is an advanced driveline management feature to improve loader application such as truck loading and tight corner operation by limiting vehicle tractive effort in hydraulic stall conditions to the minimum required to hold the vehicle and not to the maximum available.
Reduced fuel consumption