Energy Efficiency of Vehicles
Research into the energy efficiency of long combination vehicles (LCVs) and the benefits of regenerative braking
Research to date has focussed on modelling the fuel consumption of heavy goods vehicles and understanding the factors that have the largest influence on CO2 emissions. It turns out that the most influential factors are external to the vehicle - particularly vehicle utilization (eg back-hauling) and traffic congestion. After those factors, the size of the vehicle plays a very large part in the energy consumption per freight task as does the provision of regenerative braking for start-stop operations. Vehicle mass is also important. Factors that have traditionally been the focus of attention: rolling resistance, vehicle aerodynamics, engine thermodynamics and driver behaviour are less influential.
Urban Delivery Vehicles
The aim of the current project is to investigate the possibilities for regenerative braking in urban delivery vehicles. Regenerative braking systems recover energy from each braking event, and use this stored energy to accelerate the vehicle. Recycling energy in this way improves the fuel economy of the delivery vehicle over a standard urban drive cycle, and also helps to reduce brake wear. It is intended that a regenerative braking (hydraulic hybrid) prototype will be installed on the CVDC's experimental vehicle and tested to validate mathematical models and establish the true level of benefits available.
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News
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May 14, 2012
CVDC is pleased to announce SDC as the newest member of the consortium.
Apr 24, 2012
CVDC Represented at EuroBrake 2012
Leon Henderson presented his latest work on HGV slip control at EuroBrake 2012 in Dresden.
Sep 15, 2011
The CVDC had its bi-annual meeting at the headquarters of Poclain Hydraulics in Verberie, France. The consortium discussed research performed over the last 6 months, and future directions.
Sep 10, 2011
Will Midgley presented recent results of his research into regenerative braking for articulated heavy vehicles at the Vehicle Propulsion and Power Conference 2011 in Chicago, USA.
Aug 20, 2011
CVDC Represented at IAVSD 2011
Leon Henderson presented some of his recent work on Tyre Dynamics and Slip-Control Braking at the 22nd International Symposium on Dynamics of Vehicles on Roads and Tracks, held in Manchester, UK.