Vehicle coolant is one of the most important operating fluids. Along with changes in design engines, composition has also changed. The main function heat transfer (HT). It absorbs up to one-third energy generated by engine. responsible for protecting cooling system from damage caused corrosion, scaling and deposits. unfavorable working environment engine affected smaller capacities systems (CSs...

(HEVs) have existed since before 1900 (Figure 1), interest in these vehicles has grown substantially only in the last 15–20 years. The main reason for this interest is the expectation that HEVs represent a short-term approach to improving fuel efficiency and reducing pollutant emissions of automobiles. In internal-combustion-engine (ICE) systems, the mechanical power needed to drive the vehicle...

The cooling system of an Automobile plays an important role in its performance, consists of two main parts, known as radiator and fan. Improving thermal efficiency of engine leads to increase the engine's performance, decline the fuel consumption and decrease the pollution emissions. Water and ethylene glycol as conventional coolants have been widely used in radiators of an automotive industry ...

Current internal combustion engine technology for road vehicles allows us to meet the existing and planned future standards for emission. However, the motion of a moving vehicle used in real operating conditions is frequent changes of the values of power in the powertrain. The analysis of the results of the road test through a measurement of parameters of engine in a passenger car proves, that ...

High power and miniaturization of motors in an in-wheel drive system, which is installed inside the wheels of a vehicle, are required for directly driving the wheels. In addition, an efficient cooling system is required to ensure high driving performance and durability. This study experimentally evaluated the heat dissipation performance of a 35-kW-class large-capacity in-wheel motor equipped w...

Towards Integrated Powertrain Control for a Mild-Hybrid Urban Vehicle with a Downsized Turbo-Charged CNG Engine — Compressed natural gas (CNG) is considered as one of the most promising alternative fuels for transportation due to its ability to reduce greenhouse gas emissions (CO2, in particular) and its abundance. An earlier study from IFP has shown that CNG has a considerable potential when u...

This work evaluates proposed methods to correct engine power output as a function of atmospheric conditions. The analysis was made through experiments carried out in a vehicle on the road, under different temperature, pressure and air humidity conditions. The vehicle had a four-cylinder gasoline-fuelled engine, with multi-point fuel injection system, variable intake pipe length and variable int...