International Scientific Journals
of Scientific Technical Union of Mechanical Engineering "Industry 4.0"

The present innovation represents an improved version of an synchronous electric motor with permanent rare earth magnets and increased power, revealed in the utility model certificate No. 2609/05.06.2017, which has one two sites active rotor and two independent stators in one compact module. That way the synchronous electric motor uses at the same time insite and outside active zones. The aim is to upgrade and further develop through research and experimental realization the concept presented in the utility mode in order to receive increased rotational moment and output power. The estimated characteristics, as the efficiency and the output power, of the electric motor with permanent rare earth magnets to be built is expected to be higher than any electrical motor with permanent rare earth magnets presently available at the global level.

Modern mobile phones with advanced functionality, known as smartphones, have many applications. A triaxial accelerometer is used to determine the current position of the smartphone in space and therefore the screen orientation. It is known that accelerometers are used to determine important operational properties of vehicles, such as dynamics and acceleration. In this regard, the purpose of this paper is to study the possibility of using a smartphone to measure the vehicle acceleration.

This paper considers various examples of lateral tilting of road vehicles when cornering. Narrow tilting three wheeled vehicles are considered. Four wheeled tilting small road vehicles, passenger cars with active anti-roll bars and cars with active tilting when moving in a turn are presented. The advantages and disadvantages are discussed

The efficiency and technical and economic properties of the electric cars depend mainly on the rechargeable traction battery. LiFePo4 batteries belongs to the lithium-ion type and has a number of advantages such as high capacity, long life cycle, resistance to fire at high temperatures or shock. They have safe and stable over-charging and over-discharging performances. This paper describes the process of charging the individual cells of an electric car battery after their over-discharge.