2. The feel-good guarantee –
for vehicle manufacturers and
motorists all over the world
Bosch Electrical Drives develops and manufactures as leading sup-
plier and worldwide partner of OEM, TIER and in-house customers
electrical drive units for actuation functions, engine cooling, vehicle
climate control and wiper systems.
Further components such as vacuum or auxiliary water pumps, water
valves, engine cooling fan modules, wiper arms and blades round out
our product range. Our products fulfill the highest quality and com-
fort requirements. With their high degree of efficiency and their light,
compact design they also contribute toward reduced fuel consump-
tion and CO2
output. Better motoring – with Bosch Electrical Drives.
2 | Electrical Drives
Best quality and efficient
production
The specialized knowledge of experi-
enced employees combined with the
consistent and comprehensive appli-
cation of the latest quality-assurance
processes are the guarantee for
efficient, reliable process sequences
and are thus the basic prerequisites
for the high quality and punctual sup-
ply of our products direct to our cus-
tomers’ assembly lines.
This is why all our production fa-
cilities work according to the strict
Bosch quality guidelines which on-
ly permit technically mature prod-
ucts to reach series production af-
ter they have undergone tough tests.
Our products and services thus fulfill
international standards (DIN ISO EN
9000, QS-9000, VDA) and have al-
ready received various awards.
Our innovative strength is
based on the continuous de-
velopment of our technolog-
ical competence in the fields
of mechanics, aerodynam-
ics, acoustics, electrics and
electronics – combined with
our global market presence
and market orientation
3. Our customers benefit from
our worldwide presence
With around 12,000 employees, we
are represented on every continent
with our own development, produc-
tion and distribution centers. We can
thus always react rapidly and flexi-
bly to the new demands of interna-
tional markets and ensure the world-
wide availability of our products and
services. Together with vehicle and
engine manufacturers we develop
solutions that exactly meet custom-
er-specific requirements. A dense
network of service partners in over
130 countries ensures competent re-
pair and spares services anywhere in
the world.
Bosch technology on board,
a firm feature of progressive
automobiles
Electrical Drives | 3
Plymouth
Brits
Chennai
Campinas
Bühl
Bühlertal
Changsha
Clayton
Albion
Toluca
Castellet
Tienen
Miskolc
YokohamaBuyong
Waltham Caen
Hildesheim
Hatvan
Budapest
Suzhou
Our development, production
and distribution locations
4. Actuator, thermal and wiping systems –
innovations to meet the highest demands
4 | Electrical Drives
The experience and know-how of Bosch Electrical Drives are much
sought after by all vehicle manufacturers. Our products stand for in-
novative technology with great customer benefits, cover a large
number of functions and are thus used in the most varied types of
motor vehicle worldwide. Whether these are top-of-the-range vehi-
cles for those requiring maximum comfort or cost-favorable small
cars with correspondingly basic equipment – we cover every re-
quirement.
Application that saves
time and money
Innovative development and manu-
facturing concepts together with our
experience in all fields of automotive
technology enable us to realize high-
quality products quickly and cost-fa-
vorably. Our products are based on
progressive platform concepts that
are employable worldwide and can
be incorporated into every architec-
ture.
In addition to ideal functionality,
our solutions are characterized, in
particular, by reductions in noise,
weight and space requirements. We
thus give automobile manufacturers
new design freedom. With our prov-
en strategy of offering complete,
precisely matched modules and sys-
tems, we reduce the fitting costs
and effort involved in vehicle pro-
duction at the manufacturers.
5. Fields of competence and activity:
Actuators for power windows, seat
adjustment and sunroofs
Fan modules and drive units for en-
gine cooling
Pumps and valves for engine-cool-
ing systems
Components for interior climate
control
Windshield and rear-window wiper
systems, wiper arms and wiper
blades
Electric vacuum pumps for brake
boosters
Electrical Drives | 5
Our products and services fulfill the
highest standards of quality, function
and cost – just in time
6. Our FPG2 system actuator:
unrivalled multi-functionality
Besides our proven standard window
lift drives we also offer the FPG2, an
extremely flexible drive for the medi-
um to high torque range. Various
components can be inserted in the
plug-in interface of the gear housing
to meet individual requirements. A
standard basic version thus makes it
possible to create several alterna-
tives easily, quickly and cost-effec-
tively:
With 2-pin connector: for sensor-
less position recognition for anti-
pinch functionality or for systems
without this safety function
With Hall sensor: with position rec-
ognition providing the signal for
the anti-pinch functionality in the
door control unit or body computer
With plug-in electronics: for func-
tions such as position recognition,
anti-pinch functionality and com-
fort closing
Progressive solutions
for doors and sliding roofs
6 | Actuation systems
In the vehicle’s door, electrical drives from Bosch ensure that the
windows can be opened and closed comfortably. Our new drive
units and electronics simplify activation and make additional func-
tions possible. Our components are extremely compact and can be
integrated without difficulty into any door. In the roof area our mod-
ern electrical sunroof drives increase comfort and create the condi-
tions that enable the driver to concentrate fully on the traffic situa-
tion. Actuation systems from Bosch make driving not only more
comfortable but safer, too.
Our FPC1 and FPC3 window lift
drives: the established standard
Our sturdy FPC1 and FPC3 drives
are supplied as standard versions
with 2-pin connectors without anti-
pinch functionality. They are ideally
suited to light and medium perform-
ance requirements and feature par-
ticularly light, package-saving design.
The standard version of these drives,
for instance, weighs only 430 grams.
Window lift actuators:
quiet, compact and powerful
Our range of drives for power win-
dows fulfills all current market re-
quirements. The drives are charac-
terized by gears with a high degree
of self-locking, which prevents the
window from being opened by force.
They meet the highest standards re-
garding:
Package and weight
Noise
Performance range
Integration possibilities
Safety and robustness
FPG2 platform drive unit with plug-in
electronics
7. Door and roof mechatronics | 7
AHC-R sunroof drive:
extremely flat, especially light
Our AHC-R sunroof drive has been
specially developed for sunroofs with
low power requirements. Its univer-
sal drive component is only 30 mil-
limeters high and weighs only 500
grams, which makes it the ideal solu-
tion when a light, space-saving elec-
tronic comfort drive unit is required.
NSA-R sunroof drive:
powerful and extremely compact
Our NSA-R is ideally suitable for ap-
plications requiring high torques of
up to 12 Nm and is thus one of the
most powerful sunroof drives on the
market. It is available as a 2-pin or
sensor version. Its optimized mag-
netic circuit with high-energy mag-
nets makes this drive an extremely
compact and lightweight solution.
AHC-R sunroof drive:
light, compact and usable worldwide
8. Innovations for relaxed driving
and a safe arrival
8 | Actuation systems
A seat which can be adapted to the individual requirements of driver
and co-driver represents a considerable increase in driving comfort.
We have developed a range of high-performance products which ef-
fectively prevent muscle cramps, backache and tiredness. In addition
we offer drives for the steering-column, seat-belt and trunk sectors as
well as innovative vacuum pumps. We thus make driving even more re-
laxing and considerably safer.
Electrical drive units for a wide range
of seating conceptions
Our program comprises a wide range
of light, space-saving drive units for
quick and comfortable seat adjust-
ment: gearless motors, single and du-
al-stage geared motors as well as mo-
tors with spindle and planetary
gearing. The combination of motor
and gearing in one single unit cuts
down weight and reduces the space
required for installation.
An extremely versatile range
of product modules
Our products cover all adjustment
planes and open up a wide range of
possible applications. Possible adjust-
ment functions are:
Seat track, height and width
Seat tilt and depth
Backrest inclination and width
Various versions of our NSA (New Seat
Actuator) drives: flexible lightweights
for a broad range of applications
9. Seat comfort systems, further comfort solutions and vacuum pumps | 9
The new NSA drives:
smaller, lighter, more versatile
With our modular NSA building
block, we offer a motor platform for
a wide variety of drive-unit applica-
tions. Our new drive units are up to
40% lighter and smaller than their
predecessors, thus contributing to a
reduction in fuel consumption and
CO2
output as well as having smaller
space requirements. Special cost
benefits are offered by those ver-
sions of the motor designed for sen-
sorless positioning. All NSA drives
have adequate power to produce
high adjustment forces even at low
engine speeds.
Steering-column adjustment:
adapts to every driver
Our drives for electromechanical
steering-column adjustment permit
the individual positioning of the
steering wheel – quick, person-spe-
cific and comfortable thanks to the
memory and Easy-Entry/Easy-Exit
function.
Seat-belt presenter:
for convenient access
We are developing cost-favorable
seat-belt presenters which are flexi-
ble in application and can be inte-
grated without any problems. The
drive unit is controlled via Hall signal
and micro-switch. Design, lift adjust-
ment and speed can be individually
adapted in any desired configuration.
Electric vacuum pump: saves fuel,
reduces emissions
For evacuating brake boosters, we
are developing electric vacuum
pumps for flexible installation. Be-
cause they are only switched on
when needed, they generate the
required brake vacuum while saving
fuel and reducing CO2
output. The
pumps also offer full braking support
even when the engine is at a stand –
ideal for use with Start/Stop Systems.
Use of this pump guarantees an even
pedal feel when braking in all driving
situations, providing further benefits
in driving comfort and safety.
Basic NSA motor:
higher performance for less weight and
smaller installation-space requirements
Electric vacuum pump for brake boosters
10. 10 | Thermal systems
Taken as a whole, the range of fan modules from Bosch represents
an efficient, safe system for engine thermal management. We offer a
broad, globally available range of products as well as our experience
and specialist knowledge in solving all application problems. Thanks
to our well-founded know-how in the fields of aerodynamics, acous-
tics, electromechanics and electronics combined with the continu-
ous further development of fan and shroud details we can guarantee
the best possible project implementation for our customers.
EcoFan: the modular concept for
engine-cooling fan modules
The modular EcoFan concept per-
mits applications for very varied
equipment levels – from the basic
module for particularly cost-favora-
ble vehicles right up to the premium
module for luxury limousines.
All our fan modules ensure an ex-
tremely good flow of air through the
radiator and thus increase its effi-
ciency. The modules can be supplied
with brush-type motors and optional
Fan Control Module FCM or with
brushless motors and ready-integrat-
ed electronics.
They feature extremely efficient sickle-
shaped blades, important safety func-
tions as well as diagnosis-capable
electronic circuitry. They are also con-
vincingly light, quiet in operation and
compact. Our fan modules cover a
wide performance range: 70 – 650 W
for single-fan modules, 500 – 1,300 W
for dual-fan modules.
Vehicle-specific fan modules –
fresh air for every engine
The EcoFan concept offers a fan module to match every application
StandardBasic Luxury class
11. Engine thermal management | 11
Fan performance exactly as required
In order to keep the temperature of
the combustion engine constant un-
der varying ambient temperatures
and changes of load, precise stepless
adjustment of the fan’s performance
to the engine’s cooling requirements
is needed.
This function may be realized in two
ways:
A mechanically-commutated fan
motor is triggered by means of a
Fan Control Module FCM
The rotation speed of the electroni-
cally-commutated (EC) motor can
be regulated steplessly without any
additional triggering thanks to the
drive concept
The Fan Control Module:
everything under control
When brush-type motors are used,
the Fan Control Module FCM permits
an infinitely-variable fan rotation
speed. The precise adjustment of the
required speed minimizes noise, re-
duces the load on the vehicle’s elec-
trical system and thus cuts fuel con-
sumption. The FCM offers protection
against incorrect polarity, blocking
and over-voltage as well as a thermal
fuse to protect the control unit itself.
The EC motor: all in – all on
The speed of the brushless EC motor
is infinitely variable and guarantees
that the fan’s performance is adapt-
ed to actual needs. Its high degree of
efficiency contributes toward reduc-
ing energy consumption. The inte-
grated control electronics makes the
motor capable of diagnosis and iden-
tifies mechanical blocking. An irre-
versible thermal fuse and extended
protection against reverse polarity
increase the motor’s self-protection.
The Fan Control Module FCM takes over
important engine-cooling tasks
Fan module with
brushless EC motor
12. 12 | Thermal systems
Our comprehensive competence for the complete “engine plus cool-
ing circuits” thermal system enables us to ideally match all system
components and processes to one another and to thus realize the
ideal system for every requirement with the best possible system
performance. To do this, existing products are exactly matched to
the system periphery in each case, and new, innovative components
are constantly being developed for engine thermal management as
well as for control of the climate in the passenger compartment.
Efficient thermal management –
ideal temperatures for engine and
passenger compartment
Auxiliary water pumps:
for considerably greater comfort
Our auxiliary water pumps consider-
ably increase the climatic comfort in
the vehicle. By improving the coolant
flow they support both the heating
circuit and enable the residual en-
gine heat to be utilized after the en-
gine has been switched off. In future
these pumps can also be used in hy-
brid and electric vehicles. They are
quiet-running, extremely hard-wear-
ing and reliably leak-free throughout
the whole of their long working lives.
We offer an especially compact and
light version for the 20 W perform-
ance range with brushless motors.
The new generation is suitable for an
extended temperature range, can be
controlled and is capable for diagno-
sis. Furthermore we offer pumps for
the 60 … 80 W performance range
with tried-and-proven brush-type
motors.
13. Temperature control | 13
Long-life, high-performance water
valves: for a wide range of applica-
tions
Bosch offers a wide variety of water
valves with which a large number of
versions and functions can be real-
ized. The use of well-proven technol-
ogy and careful processing guaran-
tee a high level of quality. At a flow
rate of 2,000 liters per hour, the
switching time is only 150 millisec-
onds. Valve service life amounts to
about three million switching opera-
tions. Bosch water valves are de-
signed for a temperature range from
-40 °C to + 135 °C. All valves are also
available as dual valves for the sepa-
rate control of driver and front-seat
passenger sides, and as a compact
unit consisting of solenoid valve and
auxiliary water pump.
The complete thermal system: Bosch
has comprehensive system know-how as
well as the right products
Bosch switchover valve:
long-term reliability and
flexible utilization
Auxiliary water
pump with EC drive
14. 14 | Thermal systems
Bosch supplies products which increase climate comfort in vehicles
under all weather conditions. The targeted and efficient utilization
of the engine’s waste heat ensures rapid, constant heating-up of the
vehicle interior. A pleasant temperature in the passenger compart-
ment increases the feel-good factor and improves the driver’s con-
centration and efficiency behind the wheel. We thus make a valua-
ble contribution to traffic safety.
A good climate
for more comfort and safety
In developing our climate modules
and components we – and our cus-
tomers, too – benefit from our com-
prehensive thermal-system know-
how and application experience. We
utilize the latest development and
simulation tools as well as extensive
test installations to realize customer-
specific products from the design
stage right up to series production.
The Global Blower Module:
the standardized, modular HVAC
solution
With the Global Blower Module
GBM, Bosch offers a global product
platform suitable for use in heating
and air-conditioning installations. Its
modular construction comprises the
following components: motor, flange,
fan and blower controller. The brush-
type motors set new standards in
weight, efficiency and quietness.
These standardized components can
be combined on the building-block
principle to produce a variety of cus-
tomer- and application-specific mod-
ules. The newly developed and highly
efficient AirMax1 fan wheel increas-
es efficiency by up to 20%, thus re-
ducing energy requirements and per-
mitting the use of smaller, more
space-saving motors.
Blower controllers:
performance as required
Bosch blower controllers adjust the
blower rotation speed and thus the
flow volume of the conditioned air.
They can be supplied in several line-
ar or pulsed (PWM) versions. They
ensure the best possible system reli-
ability because their protection func-
tions also include protection of the
motor. The infinitely-variable adjust-
ment of the blower speed improves
passenger comfort. The well-
thought-out design facilitates inte-
gration in air-conditioning systems
and offers new freedom for the de-
sign of A/C operator panels. PWM
blower controllers have bus interfac-
es, which simplifies system integra-
tion.
The Global Blower Module GBM with
AirMax1 high-efficiency fan wheel
Linear and pulsed
blower controllers
15. Climate control components and modules | 15
Pressure and Temperature Sensor
PTS: precise measurement for high
system efficiency
The Pressure and Temperature Sen-
sor PTS is used in air-conditioning
systems with CO2
as a refrigerant. It
measures the coolant values on the
high-pressure side downstream of
the compressor. This serves to pro-
tect the high-pressure components
of this circuit and to control cooling
generation in an efficient way. The
pressure sensor guarantees a perma-
nently high degree of measuring pre-
cision. The central positioning of the
temperature sensor element directly
in the refrigerant flow guarantees ex-
tremely precise, dynamic measure-
ment of the temperature.
The Pressure and
Temperature Sen-
sor ensures safety
in the CO2
circuit
Climate Control Sensor
CCS integrated in the
blower controller of the
Global Blower Module
GBM
Climate Control Sensor:
greater air-conditioning efficiency
The Climate Control Sensor CCS
from Bosch measures and monitors
the air quality inside the passenger
compartment. It permits the ideal
utilization of preconditioned air for
acclimatizing the passenger com-
partment and ensures the addition
of fresh air as required. This increas-
es the efficiency of the air condition-
ing by up to 30%, reduces fuel con-
sumption and cuts the output of CO2
by up to 2.5 grams per kilometer.
Bosch air-flap actuators:
light, compact, reliable
Air-flap actuators are used as drives
for air-recirculation, air-distribution
and air-mixing flaps in heating or air-
conditioning systems. They also per-
mit their automation. They are of
modular design and are available in
several different versions. Their great
range of uses permits their employ-
ment in virtually all heating and air
conditioning applications.
16. 16 | Wiper systems
One central requirement for driving safety is a clear view under all
weather conditions. Windshields of a variety of sizes and the vari-
ous types of rear windows require specifically designed wiper sys-
tems. And only the individual adaptation of the drive unit guaran-
tees the efficient, reliable cleaning of the glass surface. Bosch
offers an extensive range of efficient windshield and rear window
drive units for every window geometry and all installation situations.
The right wiper drive –
for every vehicle and every
windshield
Standard wiper drive units: quiet
in operation and light in weight
Our standard wiper drive units with
rotating technology have been opti-
mized regarding noise and weight,
and are equipped with waterproof
motors having a break-away moment
of 55 Nm. Fitted as series or parallel
drives, they are used for both tan-
dem- and opposed-pattern wiper
systems.
Wiper drive units with reversing
motors simply work harder
By contrast with rotary technology, a
reversing motor changes direction
with each wiping cycle. The wiping
angle can be precisely maintained
without any mechanical aids, and a
larger area of the windshield can be
wiped. Continuous angular speed
control ensures low-noise operation.
Further advantages are reduced
packaging-space requirements and
the possibility of the wiper blade’s
depressed parking position outside
the driver’s field of vision.
Dual-motor drive unit for limited
packaging space
The introduction of reversing motors
also paved the way for the applica-
tion of dual-motor drives. The two
compact, synchronized drive units
each drive a single wiper arm. This
opens up valuable packaging space
in the centre of the vehicle. Addition-
al reductions in weight and packag-
ing space are offered by direct drive
solution.
The dual-motor wiper drive for applications
with critical packaging-space situations
17. Wiper drives for front and rear windows | 17
Drive units for traditional wind-
shields
Alongside cost-favourable standard
drive units with series or parallel ar-
rangement, we also offer four-link
systems. The increased wipe area on
the front-seat passenger’s side ful-
fills the highest demands for field of
vision. Both configurations can also
be supplied with reversing motor.
Drive units for tall windshields
In the case of particularly tall wind-
shields, we recommend 4-bar-link
and, in particular, opposed-pattern
wiper systems. In connection with a
reversing motor, packaging space
can be reduced and an extended
parking position can be realized.
Even greater flexibility in application
and even smaller packaging-space
requirements are offered by dual-
motor drives.
Rear-window wiper drive units
for fixed glass applications
Our compact rear-window wiper
drives with integrated gear can be
installed without problems and are
available with wiping angles of up to
180° and two alternative gearbox po-
sitions. The basic drive unit can be
extended by additional functions
such as EMC protection, park posi-
tion accuracy or water guidance with
spray jets.
Rear-window drive units for rear
windows that can be opened sepa-
rately
For rear windows that can be
opened separately, we offer various
system solutions which can also be
extended to include the options
mentioned above. The most cost-fa-
vourable solution is fitting the drive
unit directly on the rear window by
means of a holding plate glued onto
the glass. Especially comfortable and
quiet: a two-part drive unit with sep-
arate wiper bearing mounted on the
glass.
Direct drive: light, powerful and space-saving The 4-bar-link wiper drive increases the field of vision for the front-
seat passenger
Fig. left: revers-
ing motor for
front wiper drives
requiring less
packaging space
Fig. right:
opposed-pattern
drive for large
windshields
18. 18 | Wiper systems
Windshield and rear-window wiper systems from Bosch work verita-
ble miracles in order to guarantee the driver a clear view of the road
at all times. Our wiper arms and wiper blades make an important
contribution here. In addition to perfect wiping functions, we set
great expectations with comfortable, low-noise operation and a
long working life. In the field of wiper-arm progress Bosch has been
in the forefront for decades, offering a wide range of innovative so-
lutions for every type of vehicle.
Wiper systems for a clear
view – ahead and to the rear
also available as 4-bar-link versions.
The 4-bar-link lift control increases
the area wiped and even cleans
parts of the windshield where a tra-
ditional wiper arm cannot reach. All
versions can also be optionally fitted
with integrated and heatable washer
jets.
Wiper arms for every requirement
In addition to traditional wiper arms
attached to a flat rod, we offer our
customers an integral wiper arm.
This optically attractive arm is partic-
ularly suited to cases involving con-
siderable esthetic design require-
ments. Both types of wiper arm are
Aerotwin wiper blades
With this wiper blade, which has al-
ready won several awards, the link-
age and bracket structure of tradi-
tional wiper blades has been
replaced by an Evodium spring strip.
The flat structure thus realized im-
proves aerodynamics, minimizes dis-
tracting wind noise and prevents ice
from forming on the wiper-blade
brackets. A further Aerotwin feature
is the even distribution of pressure
which thus ensures perfect wiping at
every point on the windshield.
This evenly-distributed pressure
avoids excessive wear at individual
points and, in combination with the
use of the proven two-material tech-
nology of the wiper-blade element,
contributes to a long working life.
Aerotwin wiper blades can be used
in all new passenger-car applica-
tions. Bosch offers individual adapta-
tion of the blade to the windshield.
Spoilers and adapters can also be
designed for specific applications.
From top to bottom:
4-bar-link wiper arm, integral wiper arm,
wiper arm with integrated water nozzles
19. The proven twin
wiper blade
Wiper arms and blades for windshields and rear windows | 19
Conventional wiper blades:
reliable, tried-and-proven products
The spring strip integrated into the
wiper-blade element of our conven-
tional wiper blades ensures even dis-
tribution of pressure and adaptation
to the curve of the windshield. The
hard-wearing two-component wiper-
blade element (Twin technology)
with its particularly long life increas-
es the excellent cleaning perform-
ance of the blades. These can be
adapted for OEM fitting to every new
vehicle and are available as accesso-
ries for almost all models of vehicle.
We offer wiper blades from 26 to
100 cm in length, the number of con-
tact points varying between four and
ten. If the vehicle manufacturer so
wishes, aerodynamic aids such as
spoilers can be integrated into the
wiper blade.
Rear-window wiper arms:
suitable for every use
Alongside traditional wiper arms
with the usual metal rod, we offer
extruded plastic wiper arms for spe-
cific applications that can cover the
wiper blade and fulfill the highest de-
sign requirements. Plastic and metal
wiper arms can be combined with all
available plastic wiper blades as well
as with the innovative Aerotwin wip-
er blade for design-oriented applica-
tions.
Bosch – the best choice when
replacing wiper blades
Our Twin wiper blades for windshield
and rear window are available from
dealers all over the world. 55 wiper-
blade types cover 98% of all brands
of passenger car with conventional
wiper arms on the market and 97%
of all commercial vehicles. In addi-
tion, we naturally also offer our link-
free Aerotwin wiper blades as well
as special Aerotwin sets for conven-
tional wiper arms.
The innovative
Aerotwin wiper blade
Bosch wiper blades for retrofitting: fast
wiper-blade replacement with integrated
Quick-Clip Adapter
20. Robert Bosch GmbH
Electrical Drives
Postfach 11 63
77813 Bühl
Germany
www.bosch.de/k
Printed in Germany
292000P088-C/CCB2-200909-En
