Deutz working on hybrid projects for excavators and loaders
Deutz used Bauma to show two hybrid projects it is currently working on, including a hybrid drive for excavators and an innovative start/stop system for compact wheeled loaders.
The hybrid drive is based on using a 160kW Deutz TCD 6.1 L6 engine with an integrated motor-generator. The engine is linked to an on-board electrical power network that uses super capacitors, a power inverter and an electric slew motor, allowing components to harvest, store and use electrical energy, specifically for slewing functions.
The motor is also capable of recovering electrical energy from inertia, when the slew function decelerates.
Deutz’s involvement with Linde Hydraulics and Atlas Weyhausen for the innovative start/stop project is currently being trialled on an Atlas Weyhausen AR85 compact wheeled loader. In operation, the engine switches off at ‘zero load’ and is automatically restarted via the hydraulic system, on movement of the hydraulic controls.
It is a system that is intended to avoid long idle times, significantly reducing fuel consumption.