I. INTRODUCTION  
II. BACKGROUND  
III. PROPERTIES OF EV CHARGING CONTROL SCHEMES  
A. One-Time, Open-Loop Versus Recursive Closed-Loop Control  
B. Charging at Variable Versus Discrete Rates  
C. Homogeneous Versus Heterogeneous EV Specifications  
D. Pricing Strategies  
IV. EV CHARGING CONTROL ARCHITECTURES  
A. Centralized Control Architecture  
B. Decentralized Control Architecture  
C. Hierarchical Control Architecture  
V. DISTRIBUTED EV CHARGING CONTROL ALGORITHMS  
A. Operation Aspects  
B. Cost Aspects  
C. Uncertain Aspects of EV Charging Control Optimization  
VI. RESEARCH DIRECTIONS  
VII. CONCLUSION