ZF Ecomat
The ZF Ecomat series was a series of transmissions for buses and was first introduced in 1980. The Ecomat transmissions were able to be equipped with a retarder and feature neutral vehicle stop. The Ecomat transmissions were offered in 4 or 5 or 6 speed variants.
Transmission naming decipher
xHP-xxx
xHP = Number of Gears
- Available Values
- 4
- 5
- 6
xHP = Hydraulic converter and Plantary Gearset
xHP-xxx = Series of input torque acceptance
- 50x
- General Usage
- 30-35 foot buses
- General Usage
- 59x
- General Usage
- 40-45 foot buses
- General Usage
- 60x
- General Usage
- Motorcoaches
- Artic buses
- General Usage
- xHP-xx4
- Series
- 0 Original generation of transmission
- 2 Second generation introduced in 2001
- 4 Third generation introduced in 2006
- Series
For example 5HP-592 equals ZF Ecomat II five speed transmission which is capable of receiving 1250 Nm of input torque via the engine's flywheel. Which is generally used on 35-45 foot transit buses.
Differences
Thoughout the years, there has been technological improvements that were made to the transmission
The Ecomat 2
- New CAN Shift module thus the C after the name
- New 5HP-602 Verison available using alternative gear ratios (2.81 1.84 1.36 1.00 0.80)
- Upgraded Electronics
The Ecomat 4
- Topodyn to regulate shifting based on topograhy - Up until now the Ecomat has been supplied with a pre-set gear points. Using performance settings ranging from Super Economy up to Power. Availible starting in 2008
- Increased torque on the HP604C
Specs
Type (5 or 6 speed) | Max. input torque | Max. input speed | Mass w/ retarder | 1 | 2 | 3 | 4 | 5 | 6 | R |
---|---|---|---|---|---|---|---|---|---|---|
HP502C | 811 ft lbs (1100 N⋅m) | 2800 | 355 kg | 3.43 | 2.01 | 1.42 | 1 | 0.83 | 0.59 | 4.84 |
HP552C | N/A | N/A | N/A | |||||||
HP592C | 922 ft lbs (1250 N⋅m) | 2800 | 357 kg | |||||||
HP602C | 1180 ft lbs (1600 N⋅m) | 2650 | 368 kg | |||||||
HP504C | 811 ft lbs (1100 N⋅m) | 2800 | 355 kg | |||||||
HP554C | ||||||||||
HP594C | 922 ft lbs (1250 N⋅m) | 2800 | 357 kg | |||||||
HP604C | 1291 ft lbs (1750 N⋅m) | 2650 | 368 kg |