Road transport is a sector in which, globally, virtually all of its energy consumption is based on petroleum-derived fuel. According to data published by Eurostat in 2015, the road transport sector in Spain consumes 24.8 million tonnes per year, 52.5 % of the total. The environmental impact associated with CO2 emissions from heavy-duty road vehicles has increased by more than 30 % from 1990 to 2017. In addition, projections indicate an increase of 10 % between 2017 and 2030. In order to reduce this impact, agreements, measures and other guidelines are being reached at both regional, state and Community levels. In this regard, the roadmap set out by the European Commission suggests that, by 2050, the EU should reduce its emissions to 80 % below 1990 levels, with the transport sector challenging to reduce greenhouse gas emissions by up to 60 % from 1990 levels. At the economic level, road transport is a very competitive and strategic activity that contributes significantly to the national economy. The transport and storage sector contributed 4.5 % of the national GVA (Gross Added Value) during 2013. In 2015, this sector occupied 4.3 % of the national employed population, with 69.4 % of these employed in land transport (road and rail) and by pipeline. From an environmental point of view, the transport sector is responsible for 25 % of annual CO2 emissions. This, together with its strategic importance, makes it necessary to continuously innovate transport systems in order to increase the efficiency of the sector, both in terms of quality of service and in environmental terms. An example of this trend can be seen in the FREVUE project, carried out in several European cities, whose overall purpose is to demonstrate that electric trucks and trucks can be a viable alternative to vehicles using Diesel. With this background, the main objective of this project, CONHICAM project, is the design, development and validation of a hybrid electric propulsion system supporting the diesel engine of heavy vehicles in the road freight sector. Such a system will reduce the fuel consumption, and thus the CO2 emissions of the vehicle. To do this, the CONHICAM system will act on the axles and brake system of the vehicles, modifying its design to include an electric propulsion system with energy regeneration in braking. The CONHICAM project is possible thanks to the cooperation between PRIMAFRIO, the main refrigerated freight transport company in Spain, which will act as a leader, and the research center TECNALIA, the main research center at national level, which has a specific laboratory of intelligent mobility oriented to the design, development and verification of new solutions within the field of mobility. It is an ambitious project, with a duration of 24 months, starting on January 1, 2018, and will have a budget of 589,655.63. The project is part of the State Program of R&D+I oriented to the challenges of the Society, within the framework of the State Plan for Scientific and Technical Research and Innovation 2013-2016. The CONHICAM project is in line with the Challenges to which the State Program is oriented, specifically with the section (R4) Intelligent, sustainable and integrated transport, whose objective is to implement activities aimed at achieving a more efficient transport system in the use of resources, that is respectful of the climate and the environment and operates safely and seamlessly for the benefit of all citizens, the economy and society.