Low Cost Direct Drive for Electric Vehicles Project Progress (01/10/2008-31/03/2009) Low Cost Direct Drive for Electric Vehicles ITF/013/07AP (PolyU Ref ZS01) Project Team

Acknowledgement Automotive Parts and Accessory Systems R&D Centre Limited Innovation and Technology Fund, Innovation and Technology Commission Silver Step Holdings Limited Euauto Technology Limited Ritech Engineering & Supply Co., Ltd 2

Research Team

Milestones 1) Period from 01-10-2007 to 30-04-2008 Development of Position tracing drive: An electric drive for the in-wheel motor is developed (completed). 2) Period from 01-04-2008 to 30-09-2008 Directional control and power regeneration: a working preliminary sample with the motor is developed (completed). 3) Period from 01-06-2008 to 30-09-2008 Interface with the other electrical system: a working sample with the vehicle electrical system is delivered (completed). 4) Period from 01-10-2008 to 31-03-2009 System integration: the motor and drive is tested on a vehicle (completed). 4

Overview of Fourth Progress Report Test on both Central Control Unit and Two In-wheel SRM Drives Test on In-wheel SRM Drives on Electric Vehicle Exhibition of Project Achievements 5

Test on CCU and In-wheel SRM Drives Electric System Configuration of EV

Test on CCU and In-wheel SRM Drives Central Control Unit – Embedded automation computer

Test on CCU and In-wheel SRM Drives Central Control Unit – Interface circuit

Test on CCU and In-wheel SRM Drives Central Control Unit – Monitor , have been updated the displays

Test on CCU and In-wheel SRM Drives In-wheel SRM Drive - Controller

Test on CCU and In-wheel SRM Drives In-wheel SRM Drive – Motor mounted on wheel

Test on CCU and In-wheel SRM Drives Test on both CCU and Two In-wheel SRM Drives CCU is used successfully to simultaneously control two in-wheel SRM drives. Start, variable-speed operation and direction controlled by CCU have been accomplished. Friendly interface from CCU can monitor battery voltage car velocity motor speed reference actual motor speeds of each in-wheel motors drive direction operation status of two in-wheel motors drive status of the car.

Test on In-wheel SRM Drives on EV Layout of Electric Vehicle Rear wheels Front wheels

Test on In-wheel SRM Drives on EV Description on On-site Test

Test on In-wheel SRM Drives on EV Implementation of Basic Functions Various car loads/weights Forward start Backward start Forward variable-velocity drive Backward variable-velocity drive

Test on In-wheel SRM Drives on EV Video of On-site Test

Exhibition of Project Prof. CHENG presented the project to the visitors on 7 November 2008 (E & K Holdings Group Ltd)

Exhibition of Project Dr. XUE introduced the project to the visitors on 7 November 2008 (Sumida Corporation)

Exhibition of Project Prof. CHENG introduced the in-wheel SRM to Prof. Yingduo HAN from Tsinghua University (Academician of The Chinese Academy of Engineering) on 21 November 2008

Exhibition of Project Prof. CHENG presented the in-wheel motor project to Prof. Gang WAN from Chinese Government (Minister of Science & Technology Ministry) on 12 December 2008

Exhibition of Project Prof. CHENG described the project to Mr. Brett Sterkeg from Laservision Company on 17 December 2008

Exhibition of Project Prof. CHENG presented the project to the visitors from五邑大学 on 17 December 2008

Exhibition of Project Prof. CHENG presented the project to the visitors

Exhibition of Project Prof. CHENG presented the project to the visitors

Exhibition of Project Prof. CHENG presented the project to the visitors from MIT on 9 January 2009

Exhibition of Project Prof. CHENG presented the project to the visitors from Roetec Company (鷹達科技有限公司) on 14 January 2009

Exhibition of Project Prof. CHENG presented the project to the visitor from南美公司 on 14 January 2009

Exhibition of Project Prof. CHENG introduced the project to the visitors from Goodwell Company on 3 March 2009

Exhibition of Project Prof. Cheng described the project to the visitors from 源畅高科 on 5 March 2009

Exhibition of Project Prof. CHENG presented the project to the visitor (SBS Australia TV) on 12 March 2009

Exhibition of Project Prof. CHENG introduced the project to the visitors on 18 March 2009 (Transport Department, HKSAR)

Exhibition of Project Prof. CHENG introduced the in-wheel SRM to the visitors from中国能源部、中国电工技术学会和中国动力工程学会 on 26 March 2009

Exhibition of Project Prof. CHENG presented the project to the visitors from Chinese local government (Mayor and officers of Changchun City, China-mainland) on 30 March 2009

Exhibition of Project Prof. CHENG presented the project to the visitor Ms.Fung (Student Standard News)on 31 March 2009

Achievements Papers presented at AUPEC’2008 conference (December 2008) “Selection of Electric Motor Drives for Electric Vehicles” “Evaluation of Torque Sharing Function for Torque Ripple Minimization of Switched Reluctance Motor Drives in Electric Vehicles” “Investigation on Characteristics of Braking Operation of Switched Reluctance Motor Drives for Electric Vehicles”

Achievements Papers accepted for presentation at PESA 2009 conference (May 2009) “Study of Motoring Operation of In-wheel Switched Reluctance Motor Drives for Electric Vehicles” “Experimental Results of In-wheel Switched Reluctance Motor Driving System”

Achievements Journal paper under review Journal paper to be submitted “Multi-objective Optimization Design of In-wheel Switched Reluctance Motors in Electric Vehicles” Journal paper to be submitted “Optimal Control Method of Motoring Operation for Switched Reluctance Motor Drives in Electric Vehicles”

Achievements Paper submitted to IEEE COMPUMAG’2009 “Computation of Magnetic Characteristics of In-wheel SRMs by Using FEA in MEGA”

Achievements US patents applications submitted “In-wheel Switched Reluctance Motor” “Converter Circuit Based on Switch Modules and Bifilar Windings for Switched Reluctance Motor Drives”

Account (Used 100%) Budget Expenditure Balance Salary 2,646,000   Budget Expenditure Balance Salary 2,646,000 2,774,946 -128,946 Direct cost 1,090,000 1,161,167 -71,167 Audit 10,000 Patent 90,000 Equipment 200,000 Sponsorship 470,000 Total 3,566,000 4,036,113 -113

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