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HYBRID DRIVE - New Generation

Features

Downsizing to a diesel engine with lower rated power
compared to the conventional drive
Reducing fuel consumption and exhaust emissions by operating the engine in map areas of optimal fuel consumption
Downgrading to a lower emission class – to avoid an exhaust after treatment system if applicable (SCR)
Automatic Start/Stop – avoiding idle operations without load; engine starts automatically upon load request
Power boost – higher system dynamics during acceleration phases and peak loads
Electrical on-board power network – inverter generates 110/230 VAC to power auxiliary drives and external units

Functions

Automatic Start/Stop for further reduction of fuel consumption and emissions with high comfort for the operator
Power Boost of the e-machine supports the diesel engine during acceleration phases and peak loads
Load point increase at power reserve of the diesel engine by the e-machine being operated in generator mode
Recuperation of kinetic energy during breaking phases

Characteristics

Diesel Engine

DEUTZ TCD 2.9 L4
4 cylinder in-line engines turbocharged, with or without

charge air cooler

Water-cooled
55.4 kW@ 2,600 rpm
74.3 hp @ 2,600 rpm

E-machines

Permanently excited synchronous machines with single

tooth winding

Liquid-cooled
Integrated in SAE-like housing with SAE connecting

dimensions

Directly attached to the crankshaft
Nominal power 15/30 kW
Peak power 30/60 kW
Maximum torque 200/400 Nm

Inverter

30/60 kW
300/600 Volt
Liquid- or aircooled
CAN-Interface
Optional Features:
- DC/AC-Converter 230 VAC, 3,7 kW
- DC/DC-Converter 14 V, 1 kW

Traction battery

Bipolar lead acid battery
With integrated Battery-Management-System and CAN-

Interface

30/60 kW
300/600 Volt
1,8/3,6 kWh

Start of production: approx. 4th quarter 2012

The Bomag “hybrid roller” by DEUTZ

Customers from the construction machinery branch require above all that the power units of their equipment can cope with the highest of demands and can demonstrate above average

capability and reliability. In addition, the

power units must be energy-efficient, low on fuel consumption and environmentally friendly by complying with the stricter emissions regulations.

> Read more about Bomag’s hybrid roller in DEUTZLIVE on page 14