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DAF Putting LF Hybrid Truck Into Production; Eaton Hybrid System

By Green Car Congress on 09/27/2010 – 2:25 am PDTLeave a Comment
The DAF LF hybrid. Click to enlarge.

At the IAA 2010 in Hanover, DAF Trucks, a PACCAR company, presented the 12-tonne LF45 parallel hybrid truck, which will enter production at the end of this year. As part of PACCAR’s international hybrid program, the DAF LF Hybrid truck was developed in close collaboration with Eaton, Eindhoven University of Technology and Leyland Trucks Ltd, also a PACCAR company.

The commencement of production follows an extensive two-year field test, with vehicles in the most diverse practical applications in daily use with customers in both the UK and on the continent.

DAF LF hybrid system. Click to enlarge.

The truck is fitted with the 4.5-liter PACCAR FR diesel, which complies with the ultra-low EEV emission requirements as standard, without a soot filter. In the LF Hybrid, this engine produces a maximum power of 118 kW/160 hp and is linked to an automatic Eaton six-speed gearbox (Autoshift).

An electric motor is installed between the clutch and the gearbox, which can provide drive as well as functioning as a generator. Energy released during braking is stored in the lithium-ion batteries for re-use during acceleration. Depending on the degree of charge of the lithium-ion batteries, a central computer determines when the diesel engine provides the drive and when and to what extent the electric motor is used.

The battery pack for the hybrid system weighs around 100 kg (220 lbs) and comprises ninety-six 3.4 Volt cells. When these batteries are fully charged, the LF Hybrid truck can travel about two kilometers electrically without needing the diesel engine to drive it. In practice, this is enough to drive in and out of the green zones in city centers. In these types of circumstances, the diesel engine also runs at idle in order to drive various components (such as the steering pump and the air compressor)

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Tags: DAF, , eindhoven university of technology, , , paccar company

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