On-board electrical system/power supply
Electrical system
23
Introduction of smart fortwo electric drive (3rd Generation) • Model Series 451
Evaluation of high-voltage components
Wiring harness check:
If the chafe protection or the lines are damaged
by external influences (e.g. animal bites), the
lines must be replaced immediately. Repair is not
permissible.
Check after an accident:
The high-voltage system must be checked for
external damage and defects. If defects (e.g. loss
of electrical insulation) or external damage is
found on the high-voltage components or lines,
they must be replaced. Repair of the high-voltage
components or lines is not permissible.
Safety function after an accident:
High-voltage system shut off
• Automatic shutoff of the high-voltage battery
and discharge of the high-voltage components
takes place via the high-voltage crash sensor
control unit:
- During charging: in the event of a stationary
crash
- During driving operation: in the event of a
rollover
• Automatic shutoff takes place via the restraint
system control unit after triggering of the
emergency tensioning retractors (stage 1) or
the front airbags (stage 2) through
simultaneous triggering of the pyrofuse.
To Next Page
Loading...
Need help?
General
