SMART Fortwo 451 Series Referenzhandbuch
,
Introduction of the smart fortwo electric drive (3rd generation)
Model series 451
Introduction into Service Manual
Introduction of the smart fortwo electric drive (3rd generation) - Model series 451
smart - A Daimler Brandwww.smart.com
Daimler AG · Technical Information and Workshop Equipment (GSP/OI) · D-70546 Stuttgart
Introduction of the smart fortwo electric drive
(3rd generation)
Model series 451
Information and Copyright
Product Portfolio
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© 2012 by Daimler AG
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Daimler AG, Department GSP/OIS, HPC R822, W002, D-70546 Stuttgart.
This applies in particular to reproduction, distribution, alteration,
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Image no. of title image: P00.01-4254-00
Image no. of poster P00.00-4839-00
Order no. of this publication 6519 3005 02 - HLI 000 000 07 65
03/12
Contents
3
Introduction of smart fortwo electric drive (3rd Generation) • Model Series 451
Preface 7
Overall vehicle
Overview 8
Technical data 11
Maintenance 14
Towing 16
Electrical system
On-board electrical system/power supply 17
High-voltage battery 24
Charging infrastructure 31
On-board charger 32
Vehicle Homepage 36
Charger feed-in socket 37
Charging cable 40
Regenerative braking 42
Power electronics control unit 43
High-voltage adapter plate fuse box 44
Electric refrigerant compressor 46
High-voltage PTC heater 47
High-voltage interlock 48
Contents
4Introduction of smart fortwo electric drive (3rd Generation) • Model Series 451
Deenergisation 50
Overall network 55
Diagnosis 57
SAM control unit 58
Brake system 63
Sound generator 64
Electric drive system
Motor description 65
Transmission
Transmission description 66
Chassis
Axles and suspension 67
Wheels, tires and brakes 68
Cooling systems
Cooling system overview 69
Cooling system components 72
High-voltage battery cooling system 73
Contents
5
Introduction of smart fortwo electric drive (3rd Generation) • Model Series 451
Design
Instrument cluster 74
Additional instruments 76
Climate control 78
Body 81
Notes on damage analysis 83
Notes on supplemental restraint system 84
Notes on repair operations 85
Special tools
Electrical system 86
Annex
Abbreviations 87
Index 89
Notes
6Introduction of smart fortwo electric drive (3rd Generation) • Model Series 451
Preface
7
Introduction of smart fortwo electric drive (3rd Generation) • Model Series 451
Dear Reader,
This Introduction into Service Manual presents the
3rd generation of the smart fortwo electric drive of
model series 451.
The purpose of this brochure is to acquaint you with
the technical highlights of this new vehicle in
advance of its market launch. This brochure is
intended to provide information for people
employed in service or maintenance/repair as well
as for aftersales staff. It is assumed that the reader
is already familiar with the Mercedes-Benz and
smart model series currently on the market.
In terms of the contents, the emphasis in this Intro-
duction into Service Manual is on presenting new and
modified components and systems.
This Introduction into Service Manual is not
intended as an aid for repairs or for the diagnosis of
technical problems. For such needs, more extensive
information is available in the Workshop Information
System (WIS) and in the Diagnosis Assistance System
(DAS).
The content in WIS is updated. Therefore, the infor-
mation available there reflects the latest technical
status of our vehicles.
This Introduction into Service Manual presents
initial information relating to the 3rd generation of
the smart fortwo electric drive in model series 451
and, as such, is not stored in WIS. The contents are
not maintained and there is no provision for
updates.
We will publicize modifications and new features in
the relevant WIS documents. The information
presented in this Introduction into Service Manual
may therefore differ from the more up-to-date
information found in WIS.
All information relating to technical data, equipment
and options is valid as of the copy deadline in
February 2012 and may therefore differ from the
current production configuration.
Daimler AG
Technical Information
and Workshop Equipment (GSP/OI)
Overview
8
Overall vehicle
Introduction of smart fortwo electric drive (3rd Generation) • Model Series 451
Vehicle concept
The 3rd generation smart fortwo electric drive is
a series produced passenger car which is solely
powered by electrical means. The 3rd generation
of the smart fortwo electric drive is available in
right-hand and left-hand drive versions in the
coupé and cabrio models.
With a new high-voltage battery, the 3rd genera-
tion of the smart fortwo electric drive makes a
significant contribution to conserving fossil fuels
and reducing emissions during driving operation.
With a range of roughly 150 km, the smart fortwo
electric drive thus represents an ideal alterna-
tive for mobility requirements in urban areas and
is a further step towards the electromobility of
the future.
Thanks to standardised charging components, the
smart fortwo electric drive can be charged at any
household power outlet or on public charging
infrastructure.
P00.00-4810-00
P00.00-4811-00
P00.00-4812-00
Overview
Overall vehicle
9
Introduction of smart fortwo electric drive (3rd Generation) • Model Series 451
Innovations
• Water-cooled 3-phase AC motor with 35 kW
continuous output and 55 kW peak output
• Single stage transmission with integrated
bevel gear differential
• Water-cooled high-voltage battery (lithium-
ion battery) of the latest generation with high
energy density
• Charging of high-voltage battery through
regenerative braking
• Electrically powered refrigerant compressor
for interior and battery cooling
(only with code (V03) Battery cooling system)
• High-voltage PTC heater for interior heating
• Pre-heating/cooling of interior compartment
(pre-conditioning)
With a maximum torque of 130 Nm and acceleration
boost, the powerful electric motor provides good
driving performance and responsiveness.
Due to the output characteristics of the electric
motor, the smart fortwo electric drive only
requires a single fixed transmission ratio. This
makes gearshifting unnecessary. The motor
changes its direction of rotation for reverse
travel.
The high-voltage battery is installed between the
axles in the underfloor instead of a fuel tank. The
electric drive does not result in any space-
related limitations for the smart fortwo electric
drive; the interior compartment and trunk are
exactly the same size as on a smart fortwo with
combustion engine.
P08.00-2027-00
Electric drive system of smart fortwo electric drive
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