Can Roadside Simple Testing Methods Detect Fuel Consumption?

[LeLayla]

Roadside simple testing methods can detect fuel consumption. Automotive fuel consumption research methods: Fuel consumption accounts for a significant proportion of vehicle operating costs and is the only component that can be precisely measured through experiments in vehicle operating expenses. Fuel consumption research has been a central topic in vehicle operating cost studies worldwide, with scientists dedicating over 70 years to its investigation. Engine fuel consumption research first began in the 1920s. Although research on fuel consumption continued to grow in the following decades, truly influential theoretical understanding emerged from large-scale studies conducted in Kenya, the Caribbean, Brazil, India, South Africa, and Australia since the 1970s. There are numerous fuel consumption models worldwide, which can be broadly categorized into three types: multiple regression fuel consumption models; theoretical fuel consumption models; and bench test fuel consumption models. In China, automotive fuel consumption research is primarily led by the Highway Research Institute of the Ministry of Transport, with Dr. Pan Yuli and his team conducting extensive theoretical research and experimental calibration. The process involves thorough theoretical analysis to establish theoretical models, followed by experimental calibration to develop theoretical-experimental fuel consumption models. The research process includes: derivation of theoretical models; fuel consumption experiments; and model calibration. Derivation of theoretical fuel consumption models: Engine fuel consumption is a function of engine power and speed. Engine power can be divided into internal power and external power: internal power is used to overcome internal friction, operation of auxiliary facilities, and other resistances; external power is used to overcome gravity, road resistance, and air resistance. Similarly, engine fuel consumption can also be divided into fuel consumption required for internal power and fuel consumption required for external power.