The ZF Ecomat
automotive transmission
Transmission or transmit may refer to:
Science and technology
* Power transmission
** Electric power transmission
** Transmission (mechanical device), technology that allows controlled application of power
*** Automatic transmission
*** Manual tra ...
was specifically designed by
ZF Friedrichshafen
ZF Friedrichshafen AG, also known as ZF Group, originally ''Zahnradfabrik Friedrichshafen'' (), and commonly abbreviated to ZF, is a Germany, German technology manufacturing company that supplies systems for passenger cars, commercial vehicles ...
AG primarily for city-
bus
A bus (contracted from omnibus, with variants multibus, motorbus, autobus, etc.) is a motor vehicle that carries significantly more passengers than an average car or van, but fewer than the average rail transport. It is most commonly used ...
es and
motorcoaches. It has several generations – all of the
automatic transmission
An automatic transmission (AT) or automatic gearbox is a multi-speed transmission (mechanics), transmission used in motor vehicles that does not require any input from the driver to change forward gears under normal driving conditions.
The 1904 ...
type, and many variants. The latest variants use a lock-up
torque converter
A torque converter is a device, usually implemented as a type of fluid coupling, that transfers rotating power from a prime mover, like an internal combustion engine, to a rotating driven load. In a vehicle with an automatic transmission, the ...
along with a
retarder. Some variants are listed below.
Gear ratios Ecomat I (1980–1985)
Gear ratios Ecomat I/II/IV (1985–2016)
1st generation — Ecomat (1980–2002)
All generations of the Ecomat series are no longer in production.
*4HP500 / 5HP500 / 6HP500 — four-, five- or six-speed; maximum input
torque
In physics and mechanics, torque is the rotational analogue of linear force. It is also referred to as the moment of force (also abbreviated to moment). The symbol for torque is typically \boldsymbol\tau, the lowercase Greek letter ''tau''. Wh ...
of 1100 Nm
*4HP590 / 5HP590 / 6HP590 — four-, five- or six-speed; maximum input torque of 1250 Nm
*4HP600 / 5HP600 / 6HP600 — four-, five- or six-speed; maximum input torque of 1400 Nm
2nd generation — Ecomat 2 (1997–2007)
All generations of the Ecomat series are no longer in production.
*4HP502/C / 5HP502/C / 6HP502/C — four-, five- or six-speed; maximum input
torque
In physics and mechanics, torque is the rotational analogue of linear force. It is also referred to as the moment of force (also abbreviated to moment). The symbol for torque is typically \boldsymbol\tau, the lowercase Greek letter ''tau''. Wh ...
of
*4HP592/C / 5HP592/C / 6HP592/C — four-, five- or six-speed; maximum input torque of
*4HP602/C / 5HP602/C / 6HP602/C — four-, five- or six-speed; maximum input torque of
3rd generation — Ecomat 4 (2006–2016)
All generations of the Ecomat series are no longer in production.
*5HP504/C – five speed for lighter buses up to 13
ton
Ton is any of several units of measure of mass, volume or force. It has a long history and has acquired several meanings and uses.
As a unit of mass, ''ton'' can mean:
* the '' long ton'', which is
* the ''tonne'', also called the ''metric ...
; maximum input
torque
In physics and mechanics, torque is the rotational analogue of linear force. It is also referred to as the moment of force (also abbreviated to moment). The symbol for torque is typically \boldsymbol\tau, the lowercase Greek letter ''tau''. Wh ...
of
*5HP504/C / 6HP504/C — five- or six-speed; maximum input
torque
In physics and mechanics, torque is the rotational analogue of linear force. It is also referred to as the moment of force (also abbreviated to moment). The symbol for torque is typically \boldsymbol\tau, the lowercase Greek letter ''tau''. Wh ...
of
*5HP594/C / 6HP594/C — five- or six-speed; maximum input torque of
*5HP604/C / 6HP604/C — five- or six-speed; maximum input torque of
Use in rail vehicles
In addition to its use in road vehicles, the Ecomat transmission is also employed in the
Class 172 lightweight
diesel multiple unit (DMU) trains in service with various
operators
Operator may refer to:
Mathematics
* A symbol indicating a mathematical operation
* Logical operator or logical connective in mathematical logic
* Operator (mathematics), mapping that acts on elements of a space to produce elements of another ...
in
Great Britain
Great Britain is an island in the North Atlantic Ocean off the north-west coast of continental Europe, consisting of the countries England, Scotland, and Wales. With an area of , it is the largest of the British Isles, the List of European ...
, in major refurbishments of
ÄŒD Class 842 in the
Czech Republic
The Czech Republic, also known as Czechia, and historically known as Bohemia, is a landlocked country in Central Europe. The country is bordered by Austria to the south, Germany to the west, Poland to the northeast, and Slovakia to the south ...
, CAF built C4K in Northern Ireland and the ABB Scandia built
IC3 (DSB Class MF) DMUs in
Denmark
Denmark is a Nordic countries, Nordic country in Northern Europe. It is the metropole and most populous constituent of the Kingdom of Denmark,, . also known as the Danish Realm, a constitutionally unitary state that includes the Autonomous a ...
.
See also
*
List of ZF transmissions
References
*
*
{{inc-transport, date=October 2021
Ecomat