Bosch e-GoKart PowerTrain Young Star Manual page 27

Component Description | 4
User Interface
Illustration 22: User Interface states (E=Entry/Exit Wait state, A=Alarm state requiring AC reset)
Charge Initiation
CAUTION
Prerequisite: the system must be shut down!
The I/O pushbutton on the Charger Energy Storage CH 5-1.2 is used to initiate charging. It
must also be used to terminate charging in order to limit current when disconnecting the
48 V terminals.
Upon pressing I/O button, the Charger Energy Storage CH 5-1.2 will initiate a communica-
tion handshake with the attached batteries. The handshake contains a detection of the
number and state of attached the Energy Storages ES 5-2.4.
If all necessary conditions are fulfilled, the attached batteries will perform a precharge of
the DC line and charging begins within 5 s.
Deep discharged packs (terminal voltage <32.5 V) will be detected and refused for charge.
The charging control contains an intelligent parallel operation of multiple Energy Storages
ES 5-2.4. If possible, batteries are charged in parallel. If conditions for parallel operation
are not met, batteries will be charged sequentially.
The batteries control the charge current depending on their state at any time.
During Charge
Charging time depends on the state of charge of the attached Energy Storages ES 5-2.4.
The maximum charging current per pack is limited by the battery (default 10 A).
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