Speed Control of Electric Vehicle Propulsion with Autotuning at Changeable Driving Modes and Road Conditions

Abstract

Considering the high demands continually imposed on equipment indispensable for intelligent transportation, this paper focuses on the cruise control in propulsion systems of road electric vehicles. The research lays emphasis on how to arrange optimal dynamics in terms of the speed overshoot and the speed rise time at changeable driving modes and road conditions. The paper addresses two aspects, namely, most accurate following the demanded transition process and most rapid achieving the setpoint. The former issue is typical for industrial vehicles operated in rather stable obstacles (loaders, forklift trucks, carriers, etc.), whereas the latter one concerns traditional road electric cars. Online autotuning of the controller is provided directly in the driving process by applying periodically estimated slope and peak input signals for analysing the speed responses and correcting controller settings. Tuning procedures based on binary logic and fuzzy logic approaches are compared. Keywords-road electric vehicle, propulsion, PID controller, binary logic controller, fuzzy logic controller, autotuning.I.

Electric Heavy Vehicle Transportation Highway (By Catenary System)

“…An Electric Road System (ERS) in which electrical energy is transferred during motion from the road to the electric vehicle for both propulsion and charging of battery which is a technology concept with great potential for reducing dependency on conventional sources and increased energy efficiency in the transport sector [1,9,12] as shown in fig. 10.ERS is stated as dynamic power transfers from the road to the vehicle when the vehicle is in running condition and could be achieved through different power transfer technologies from the road to the vehicle [1,6].…”

Low-cost portable throttle curve manipulator for smooth initial movement of an electric vehicle

“…Focusing the talk on the motor selection, the brushless DC (BLDC) motor is highly recommended for electric vehicle applications because of the fast response in achieving the maximum rotation per minute (rpm) with efficient energy usage [11]. There has been a lot of research done in the field of BLDC motor control [12]- [15]. The focus of this research is to reach a target rotation per minute (RPM) in the shortest time possible to save the battery [11] and to have smooth movement between the throttle and motor rotation [16].…”