Next Article in Journal
Micromanipulation: A Challenge for Actuation
Previous Article in Journal
Application of a Nonlinear Hammerstein-Wiener Estimator in the Development and Control of a Magnetorheological Fluid Haptic Device for Robotic Bone Biopsy
Open AccessFeature PaperArticle

Active Control of Regenerative Brake for Electric Vehicles

Department of Electrical Engineering, National Chung Hsing University, Taichung 402, Taiwan
*
Author to whom correspondence should be addressed.
Actuators 2018, 7(4), 84; https://doi.org/10.3390/act7040084
Received: 25 October 2018 / Revised: 26 November 2018 / Accepted: 28 November 2018 / Published: 1 December 2018
Looking at new trends in global policies, electric vehicles (EVs) are expected to increasingly replace gasoline vehicles in the near future. For current electric vehicles, the motor current driving system and the braking control system are two independent issues with separate design. If a self-induced back-EMF voltage from the motor is a short circuit, then short-circuiting the motor will result in braking. The higher the speed of the motor, the stronger the braking effect. However, the effect is deficient quickly once the motor speed drops quickly. Traditional kinetic brake (i.e., in the short circuit is replaced by a resistor) and dynamic brake (the short circuit brake is replaced by a capacitor) rely on the back EMF alone to generate braking toque. The braking torque generated is usually not enough to effectively stop a rotating motor in a short period of time. In this research task, an integrated driving and braking control system is considered for EVs with an active regenerative braking control system where back electromagnetic field (EMF), controlled by the pulse-width modulation (PWM) technique, is used to charge a pump capacitor. The capacitor is used as an extra energy source cascaded with the battery as a charge pump. This is used to boost braking torque to stop the rotating motor in an efficient way while braking. Experiments are conducted to verify the proposed design. Compared to the traditional kinetic brake and dynamic brake, the proposed active regenerative control system shows better braking performance in terms of stopping time and stopping distance. View Full-Text
Keywords: motor; braking control; regenerative brake; driver design; pulse-width modulation motor; braking control; regenerative brake; driver design; pulse-width modulation
Show Figures

Figure 1

MDPI and ACS Style

Lin, C.-L.; Hung, H.-C.; Li, J.-C. Active Control of Regenerative Brake for Electric Vehicles. Actuators 2018, 7, 84.

Show more citation formats Show less citations formats
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Back to TopTop