Potential for Global Harmonization of EV Charging Gery
Potential for Global Harmonization of EV Charging Gery J. Kissel Engineering Specialist, General Motors SAE J 1772™ Task Force Leader November 17, 2010
PHEV / EV Global Volume Estimate Importance of harmonization increases with vehicle volume.
Charging Needs �Each type of vehicle has unique charging needs: �Plug in Hybrid Electric Vehicle (PHEV) �Very limited electric range – small battery 5 -10 kw hr �Charge power 1 -3 kw �Extended Range Electric Vehicle (EREV) �Increased electric range – medium battery 10 -20 kw hr �Charge power up to 6 kw �Battery Electric Vehicle (BEV) �All electric range – large battery >20 kw hr �Charge power > 6 kw
Charging Needs
Charging Standards J 1772 TM PEV Conductive Charge Coupler IEC 61851 PEV Conductive Charging System IEC 62186 Industrial plugs and socketoutlets
ISO/IEC JWG Communication Standards ISO/IEC Road vehicles — Communication protocol between electric vehicle & grid - document structure Layer 7 Application 6 Presentation 5 Session 4 Transport 3 Network 2 Data Link 1 Physical ISO / IEC 15118 -1 Vehicle to grid communication interface Part 1: General information and usecase definition Similar to J 2836™/1 SAE J 2836™/1 ISO / IEC 15118 -2 Vehicle to grid communication interface Part 2: Technical protocol description and Open Systems Interconnections (OSI) layer requirements Similar to SAE J 2847/1 SAE Similar to SAE J 2931/1 S 259 - SAE ISO and IEC Standards Summary Rich Scholer ISO / IEC 15118 -3 Vehicle to grid communication interface Part 3: Wired physical and data link layer requirements 10/26/2010
AC Charging Connector AC Connector: IEC 62196 -2 EU Type 1: Type 2: Type 3: AC Connector: SAE J 1772™ NA / Japan / Korea / Australia AC Connector: China
AC Charging Connector �IEC 62196 -2 Type 2 Derivatives: 3 Types of Type 2 �IEC 62196 -2 Type 3 Derivatives: 2 Types of Type 3
AC Charging Connector �IEC 62196 -2 And SAE J 1772™ Harmonization �IEC 62196 -2 Type 1 and SAE J 1772™ are common connectors �IEC 62196 -2 Types 1, 2, 3 and SAE J 1772™ have common control signals �IEC 62196 -2 Allows For Variation �Power Grid: single phase and 3 phase infrastructure �Country Specific Regulations: protective shutters, etc �Fixed or loose charge cables �China Unique Connector And Controls
AC Charging Coupler � IEC 62196 -2 Types 1, 2, 3 And SAE J 1772™ Have Common Control Signals � Vehicle charging control modules and software can be common between EU and NA. � Vehicle charging control modules and software development and validation is costly! � Connectors are inexpensive compared to hardware and software development and validation so different connector shapes are not significant. � However the fewer connectors the better! � China Standard � Different controls and connector will require unique software development and validation.
DC Charging Connector-”Fast Charge” DC Connector: IEC 62196 -3 EU DC Connector: SAE J 1772™ NA DC Connector: CHADEMO Japan Working to harmonize: • Type 1 or Type 2 “core”, adding DC contacts • DC contact location and other physical features are common • Common control signals DC Connector: China
DC Charging Connector-”Fast Charge” �IEC 62196 -3 and SAE J 1772™ Have Common Control Signals and Overall Physical Shape �Japan CHADEMO Has Unique Control Signals and Overall Physical Shape �China Standard Has Unique Control Signals and Overall Physical Shape
Charging Connector Summary �AC charging harmonized sufficiently except for China �EU working to reduce the number of connector Types �Will reduce complexity �DC charging connectors have harmonization potential �Reduce number of different connectors �Harmonize controls
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