Definition and implementation of a global EV ... - Park & Charge

final report
2.4 The interface issue
2.4.1 Vehicle interface
There has been (and still is) a long discussion about the standardisation of an unique vehicle
interface. This is quite an important issue, because the interface determines and limits the
number of possible solutions. Moreover, an interface which fits to all modes mentioned above
will become quite complex - and, therefore, expensive.
As long as there is lack of an international agreement, any sustainable conductive charging
concept should not relay on a certain vehicle interface, because a significant number of e-
xisting solutions would be prevented from sharing the system.
However, a practical charging solution would focuse the discussion on the real needed properties
of the interface and therfore contribute to the agreement process.
2.4.2 Mains connectors
A mains connector for EV applications is necessary to implement a sustainable AC charging
concept. It should cover some additional requirements, layed down in the standard proposals.
The specification partially exceed the functionality of standard devices:
• Devices should be based on an agreed worldwide standard, such as IEC60309-2
• The connection must provide industrial durability
• The implementation of specific additional safety means must be possible
• Communication and safety contacts should not affect mechanical intermateability with
standard devices
Recently CENELEC, the European standardisation body, started to work out a standard proposal
based on IEC 60309 „industrial plugs and sockets“
17/01/2008 9 Infrastructure for electrical vehicles