In the Automobile sector, energy consumption is increasing each year and CO2emissions that cause global warming are increasing. To spread low-fuel consumption cars in order to counter this, technology to correctly assess the efficiency of energy consumption is required to enable accurate determination of fuel consumption performance is needed to. To accomplish this, the Laboratory is analyzing factors that influence fuel consumption and is undertaking research of technology to measure fuel consumption, units for indication of fuel consumption by heavy-duty vehicles, running modes for fuel consumption modes, technology to measure fuel consumption, simulation for fuel consumption estimation and other themes.