Sustainable Elements in Electric Vehicle Energy Management System: A Study on Visual Interaction Design

Main Article Content

Yue Zhai
Dan Liu

Abstract

To enhance the efficiency of regenerative braking in electric vehicles (EVs) for sustainable development and composite energy systems, a study was conducted on a composite energy system combining batteries, supercapacitors and bidirectional DC/DC converters with conventional control strategies. The composite energy system was improved to feature three regenerative braking modes and a segmented control strategy for regenerative braking was proposed. Different regenerative braking control methods were adopted in three phases: high-speed, medium-speed and low-speed, with transition moments determined by factors such as supercapacitor voltage and motor speed. Smooth braking was achieved through optimization of motor braking current and phase transition timing. Experimental tests on braking conditions were conducted on a mini EV under two different initial braking speeds, comparing conventional and segmented control strategies. Results showed that under the segmented control strategy, the mini EV achieved stable braking and enhanced energy recovery efficiency. By designing a system that enables intelligent mobile terminals, in-vehicle interaction terminals and precise charging terminals to interact and share information, information becomes perceptible and comprehensible. A user-friendly visual design, intelligent navigation and trip planning contribute to the efficient allocation of charging resources. Additionally, Augmented Reality Head-Up Display (AR HUD) technology aids users in achieving optimal driving operations, making "range anxiety" more manageable.

Article Details

Section
Articles