Ecosplit – The Manual Transmission for
Modern Heavy Trucks
ZF Friedrichshafen AG
Internal © ZF Friedrichshafen AG
Highlights (Technology)
Ecosplit for Modern
Heavy Trucks
• 16 gear steps
• Easy to shift
• Universally applicable
• Compact design
• Quiet running
Internal © ZF Friedrichshafen AG 2
Highlights (Customer Value)
Ecosplit stands for:
• Payload advantages
• Cost-effectiveness
• Reliability
• ZF transmission system
• Environmental friendliness
Internal © ZF Friedrichshafen AG 3
Advantages for the
Vehicle Manufacturer
Ecosplit means:
• Simple and flexible installation
• Fine-tuned gear ratio steps for all vehicle variants
• Opportune power-to-weight ratio
• Variable in terms of application
• Cost advantages
Internal © ZF Friedrichshafen AG 4
Advantages for the
Vehicle Owner
Ecosplit stands for:
• Reduced operating costs
• Universal application
• Improved safety
• Reliable service
Internal © ZF Friedrichshafen AG 5
The Transmission System
Clutch bell housing Shift system Connecting face
for PTOs
Servoshift
(optional)
Clutch release cylinder
(optional) Housing Intarder
Internal © ZF Friedrichshafen AG 6
Technical Features
• Tried and tested transmission design
• State-of-the-art transmission technology
• Application-oriented options
Internal © ZF Friedrichshafen AG 7
Transmission Design
Internal © ZF Friedrichshafen AG 8
Shift System
Range-
Ecosplit 16 S … TD Splitter group Basic transmission change Range-change group shift system
group
Direct drive L S 4 3 2 1 L
8 7 6 5 R S
Overdrive S L
Input shaft
Countershaft
Output shaft
Constant gear pair 1 Constant gear pair 2 R gear reversing gear
Internal © ZF Friedrichshafen AG 9
Shift System
Range-
Ecosplit 16 S … TD Splitter group Basic transmission change Range-change group shift system
group
Direct drive L S 4 3 2 1 L
8 7 6 5 R S
Overdrive S L
Input shaft
Countershaft
Output shaft
Constant gear pair 1 Constant gear pair 2 R gear reversing gear
Internal © ZF Friedrichshafen AG 10
The Transmission System
Clutch bell housing Shift system Connecting face
for PTOs
Servoshift
(optional)
Clutch release cylinder
(optional) Housing Intarder
Internal © ZF Friedrichshafen AG 11
Double H Shift System
Splitter group
Versions:
S
1 3 5 7 7 5 3 1
Preselection
switch
N N N N
L
R 2 4 6 8 8 6 4 2 R
Left-hand drive Right-hand drive
S High range-change group
L Low range-change group
N Neutral position (idling position of the shift lever)
Internal © ZF Friedrichshafen AG 12
Servoshift
A Servoshift cylinder
Clutch release
cylinder
ON/
OFF
Compressed air
reservoir
Internal © ZF Friedrichshafen AG 13
Additional Transmission Cooling
Oil/air heat exchanger Oil/water heat exchanger
Cooling water
connections
Internal © ZF Friedrichshafen AG 14
Control Elements
Double H shift pattern Shift pattern with
(only 16-speed version) superimposed H
Accelerator
pedal
Clutch pedal
Brake pedal
Splitter group Splitter Range change group:
group
High
Pre-selection (5-6-7-8)
Tachometer
switch Low
(R-1-2-3-4)
Internal © ZF Friedrichshafen AG 15
Shifting
Double H Shift Pattern
Driving direction:
Splitter group:
Range change group:
Pre-selection
High
switch
Low
N = Neutral position (idling position of the shift lever)
= Automatic changeover of the range change group
= Spring force in direction of arrow
Internal © ZF Friedrichshafen AG 16
ZF-Intarder
The Overall System
1 + 1 = more than 2.
Ecosplit and Intarder
• 2 products – All from a single source and integrated
• Less wear of service brake:
80 - 90 % of braking operations with Intarder
• Up to 500 kW braking performance
Internal © ZF Friedrichshafen AG 17
Ecosplit with ZF-Intarder
in the Vehicle Network
Ecosplit and ZF-Intarder in the CAN networked system of the vehicle
Optimal harmonization of Intarder, braking system, and the entire driveline
Ecosplit
Electronic
Intarder Electronic
engine control
electronics braking system
(EDC)
Internal © ZF Friedrichshafen AG 18
Product Data
Intarder 3
Bremsomat • Bremsomatic • Bremsomatic + Tempomat
Operating Modes
(cruise control)
Braking stages 5
TraXon: 4,000 (Power) or 3,300 (Eco)
Brake torque [Nm]
Ecosplit (4th generation): 3,500
Brake power [kW] Max. 600 (short-time)
Idle speed performance (1 500rpm) 1.4 kW (Power); 1.1 kW (Eco)
Noise [db(A)] 80
Weight of Intarder unit [kg] Approx. 70 (depending on version)
Operating principle Hydrodynamic hydraulic brake
Control unit Electronic (CAN communication)
Oil supply Together with the transmission
Cooling and heating function Via the vehicle cooler for the transmission and the Intarder
Compatibility With ABS systems, EBS
According to the Directive on the Transportation of
Release
Hazardous Goods (GGV)
Internal © ZF Friedrichshafen AG 19
Brake Torque Chart
Ecosplit With ZF-Intarder 3
4,500
4,000
Max. brake torque 600 kW
3,500
3,000
2,500
Brake torque TOutput [Nm]
2,000
1,500
1,000
500
0
0 20 40 60 80 100 120
Velocity v [km/h]
Internal © ZF Friedrichshafen AG 20
Installation Dimensions
Ecosplit With ZF-Intarder 3
A
1 2 3 4 5 6
SAE 1
484
305
301 300 B
1 Connection option for steering pump drive 4 ZF-Intarder unit
2 Connection for power take-off 5 Oil/Water heat exchanger
3 ZF-Ecosplit / New Ecosplit transmissions 6 On-site electronics
Transmission length A B
16 S 1631 TD / 1831 TO 930 mm 1,229 mm
16 S 1931 / 2231 / 2331 / 2531 TO/TD 1,015 mm 1,314 mm
16 S 2731 TO 1,031 mm 1,330 mm
Internal © ZF Friedrichshafen AG 21
PTO Application
N.../1 N.../4 N…/10 N…/PL Several
Clutch-dependent Drive-dependent output locations
Dump trucks
Loading crane
Articulated mast
Bulk and tank trucks (x)
Garbage disposal
Fire services (x)
Concrete pumps (x)
Street and drain-cleaning vehicles (x)
Truck mixer
Truck crane
(several steered axles (x)
and/or second steering circuit)
Internal © ZF Friedrichshafen AG 22
PTO Program
Ecosplit 4th Generation
Transmission PTO Output Output Speed factor Direction of rotation Driven by Operating mode
designation type point torque
Nm
"f"1) "g"2) counter- engine-wise clutch engine drive Continuous Short-term
engine-wise dependent dependent dependent operation operation
NH/1 1,000 0.77 / 0.91 - o - o - - o -
NH/4 430 0.98 / 1.17 - - o o - - - o
16 S 1630 TD
C 870 – 470 0.95 – 2.00 - - o o - - o -
16 S 1930 TD
16 S 2230 TD
N 221/10 IT3) D: NL/1 600 0.77 / 0.91 - o - o - - o -
16 S 2330 TD
D: NL/4 430 0.98 / 1.17 - - o o - - - o
Ecosplit
NH/PL - - 1.85 - o - - o o -
NH/1 1,000 0.91 / 1.09 - o - o - - o -
NH/4 430 1.17 / 1.40 - - o o - - - o
16 S 1830 TO
16 S 2230 TO
D: NL/1 600 0.91 / 1.09 - o - o - - o -
16 S 2530 TO
N 221/10 IT3)
16 S 2730 TO4)
D: NL/4 430 1.17 / 1.40 - - o o - - - o
NH/PL - - 1.85 - o - - o o -
Internal © ZF Friedrichshafen AG 23
Ecosplit
Clutch-Dependent PTO
ZF NL/1 and NH/1 PTOs
with integrated shift cylinder
For driving: Hydraulic pumps for example
Design: b = with output flange
c = for direct pump attachment
Operating mode: Continuous operation
Axle offset: Without (center of countershaft)
Possible installation
positions:
Output torque: NH/1 = 1,000 Nm
NL/11) = 600 Nm
Internal © ZF Friedrichshafen AG 24
Ecosplit
Clutch-Dependent PTO
ZF NL/4 and NH/4 PTOs
with integrated shift cylinder
For driving: Hydraulic pumps for example
Design: b = with output flange
c = for direct pump attachment
Operating mode: Short-term operation
Axle offset: 80 mm (up to center of countershaft)
Possible installation
positions:
Output torque: NL/4 und NH/41) = 430 Nm
Internal © ZF Friedrichshafen AG 25
