Temperature requirements of electronic control units used in automotive applications are constantly getting higher. This paper presents a simple driving strategy for the switching elements of BLDC (Brushless DC) motor control electronic unit which enables a better power consumption distribution between them, thus reducing the temperature peaks in the electronic equipment which limits its performance and lifetime. The driving strategy consists in alternating the freewheeling path between low and high-side for each consecutive PWM (Pulse Width Modulation) period. Therefore actively involving in the control of the motor all four switching elements of the bridge during one commutation period, in contrast to the classical low-side freewheeling method which uses only two or three (active freewheeling) switching elements.I.

In the last few years biologically inspired engineering has acquired an increased interest in developing new technical solutions for medicine, industry and all other fields related to biology. Based on previous research, this paper presents an enhanced proof of concept for a bio-inspired obstacle avoidance system that could be used as guidance for blind people or people with visual disabilities to move free in a real environment. The improvement is related with a new method for selecting only parts from the entire visual field which are essential and a decision block based on fuzzy logic behavior.

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