Starter Motors and Generators
Bosch eco-innovations – highly efficient
generators reduce CO2 emissions
High efficiency reduces emissions
Generators are the power stations on board every vehicle.
They reliably provide power to the safety, convenience,
assistance, and injection systems as well as to engine
management. They also recharge the car battery. To do
this, generators convert mechanical energy into
electrical energy. The higher the generator’s efficiency,
the lower the vehicle’s fuel consumption and hence its
CO2 emissions. To increase the efficiency, Bosch engineers took a close look at numerous generator details
and made improvements, especially in the area of
losses arising from rectification of the alternating
current generated.
The high-efficiency diodes developed in-house reduce
the generator’s CO2 emissions by up to 1.3 grams per
Product description
kilometer. In addition, compared to standard genera-
Lawmakers have mandated economical, low-
tors, this version delivers up to seven amperes more
emission vehicles, but drivers are looking for fun,
at low engine speeds. That is particularly important,
not just efficiency. Now Bosch has shown that these
since on-board power consumers need a reliable power
two goals can be reconciled thanks to their latest
supply even at low revs.
eco-innovations. Generators with high-efficiency
diodes and synchronous active rectification have
The generator with synchronous active rectification
now been officially recognized by the European
even offers up to ten amperes more than normal gene-
Union (EU). These technologically advanced com-
rators, reducing CO2 emissions by up to 2 grams per
ponents make ve­­hicles more efficient and more
kilometer. With this technology, the diodes are repla-
economical, so they are able to meet the Euro-
ced by high-performance transistors. Both generator
pean Commission’s strict CO2 targets.
versions are highly efficient and help make the vehicle
more eco-friendly – something the EU has confirmed
by recognizing them as eco-innovations.
EU recognizes particularly eco-friendly technologies
European regulations set an average emissions limit of
95 grams of CO2 per kilometer for new vehicles starting
in 2021. That equates to fuel consumption of just over
4 liters per 100 kilometers. In 2013, average CO2
emi­ssions from new vehicles were still 132.9 grams
per kilometer.
Starter Motors and Generators | Bosch eco-innovations – highly efficient generators reduce CO2 emissions
With the “eco-innovation” label, the EU recognizes
particularly eco-friendly technologies. Vehicle manufacturers can have these technologies count as CO2
credits toward calculating their fleet fuel economy
figures. The maximum permissible credit is 7 grams
per kilometer.
CO2 fleet target
Robert Bosch GmbH
Starter Motors and Generators
Postfach 30 02 40
70442 Stuttgart
Germany
www.bosch-mobility-solutions.com
Printed in Germany
292000P1FV-C/CCA2-201508-En
© 2015. Robert Bosch GmbH reserves all rights even in the event of industrial property rights.
We reserve all rights of disposal such as copying and passing on to third parties.