Abstract
An electric vehicle conversion project often faces the problem of a sudden and non-smooth acceleration. From this, we see a great demand in improving the throttle control to have a better human-machine interface and better controllability and safe operation of an electric vehicle. Additional improvement on throttle control also helps to reduce energy consumption during acceleration which prolongs the driving range of the vehicle. This work presents a practical method to provide a smooth start for an electric vehicle with brushless DC (BLDC) motor using arduino microcontroller. Additional control algorithms between the throttle and motor controller are implemented with the microcontroller. Two sets of algorithm, which can be used at the same time, have been developed in order to reach the goal of smoother acceleration, better controllability, and lower energy consumption. Tests have been carried out on our in-house developed vehicle, Electric Caterham, to validate the effectiveness of different algorithms. We expect a 10% reduction in energy consumption during acceleration. This paper presents the change in acceleration performance after implementing the proposed feedback control system.
Highlights
[1] One advantage that battery electric vehicle (BEV) has over internal combustion engine vehicle (ICEV) is that weight reduction due to simplified power train
Proposed control system consist of a sensor, which helps to get the speed of the vehicle, Arduino microcontroller, and motor controller
Test results show that a regenerative rpm sensor is more suitable for feedback control in electric vehicle than a Hall Effect sensor because of its fast and reliable measurement
Summary
Due to growing concern of energy crisis and global warning, electric vehicle, especially battery electric vehicle (BEV) market has grown rapidly in recent years. [1] One advantage that BEV has over internal combustion engine vehicle (ICEV) is that weight reduction due to simplified power train. [2] over simplification of the power train remove some desirable functionalities, such as smooth acceleration through clutch and gearbox, of conventional power train. When the clutch on an ICEV engages, the transmission system is accelerated to engine speed from zero rpm. During this process, the torque transmitted to the wheels build up gradually. The presence of gearbox make throttle control of ICEV easier as the acceleration is divided into several segments, which ensure the drivability. All these functionalities of traditional transmission system need to be compensated by the throttle control and motor control system of BEV. The voltage signal is transmitted to both motor controllers through an Arduino Mage 2560 microcontroller. By adding feedback algorithm, which adjusts the throttle signal, to the microcontroller, the desired functionalities may be achieved
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
