UI Start
Description
The driver starts the charge process by selecting an on-screen option. Most commonly, this will include selecting a specific charger from a list, but it can also be used to select Start/Stop/Receipt. The UI can be either the Charge Controller, of if using the Apollo family, the Payter terminal.
Dependencies
The Charge Controller can display to, and collect feedback from, the driver before starting any processes. The Charge Controller provides instructions to the driver on what to do at each step.
Step by Step Process
The Charge Controller displays the interactive user interface
The driver selects their options, including confirming they are ready to proceed with payment authorisation
The Charge Controller sends the start command to the Payter terminal
Driver taps their card
Payter returns card data to the Charge Controller
The Charge Controller decides to authorize and sends this to the terminal
Upon successful authorization, a
sessionId
is returned to the Charge ControllerThe
sessionId
is allocated to the selected charge station, which is unlocked. The driver is instructed to plug in to start, if not already doneThe driver plugs in their vehicle and charging begins.
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UI Start Flow
UI Stop
The Unplug to Stop or Tap to Stop flow is recommended here as other Charge Controller users should not be able to stop a driver’s charging session from the Charge Controller without validation.
Multiple Choice’s
Charge Controllers can use more than one set of choices, to drive efficiency in a large charge station with multiple charge points. A choice of 4 different charge stations could be the first screen, followed by a second choice, to either; Start, Stop, Receipt.
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In this approach the Charge Controller can leverage a single Terminal to be an Interface for multiple Connectors.