Bosch Engine Management Systems
perfectly fulfill the requirements of mobility
on two wheels
Robert Bosch GmbH
Gasoline Systems
Postfach 30 02 40
70442 Stuttgart
Germany
www.bosch-motorcycle.com
Printed in Germany
2 920 00P 1D4-C/CCA-201409-En
Bosch EMS for an economical, safe and enjoyable ride
Bosch offers engine and vehicle
manufacturers a comprehensive
portfolio and expertise that they
can access around the world. Bosch
is also active in two-wheeler mobility, with teams of experts working
intensively and exclusively on twowheeler developments.
The Bosch portfolio includes complete and customized solutions in
electronic engine management, covering everything from mass-mobility
two-wheelers to high-performance
bikes.
Electronic control unit Motronic
Broad portfolio
provide an EMS solution which is eco-
Bosch offers the full range of EMS tech-
nomical and fulfills these requirements.
nology customized especially for twowheelers. This includes components for
Bosch guarantees the optimum integration
fuel injection and supply, air manage-
of all components into the electronically
ment, ignition, and exhaust gas treat-
controlled EMS. These complete systems
ment as well as electronic control units.
offer top functionality and maximum system
benefits. Two-wheeler manufacturers need
In addition to these individual compo-
less time and effort for system integration
nents in a variety of versions, Bosch also
and quickly arrive at series production.
offers complete EMS solutions tailored
The Bosch EMS range of applications covers
specifically for each customer.
everything from scooters and light motorcycles to heavy high-performance bikes.
Customized solutions
Bosch adapts its EMS to the specific re-
Electronic control
quirements of markets around the world.
The electronic control unit Motronic is the
In developing the systems, Bosch applies
core of every EMS for two-wheelers. It is re-
its understanding of local market condi-
sistant to water, extreme temperatures, and
tions and manufacturer needs as well as
vibrations in harsh conditions.
the culture and passion of two-wheeler
riders.
No larger than a credit card, the electronic control unit processes the system infor-
Bosch can also provide tailor-made EMS
mation and controls all functions as a ho-
for any two-wheeler model. The manu-
listic system, from fuel supply to exhaust
facturer specifies the individual require-
gas treatment. Iontrol is easy to apply and
ments of the motorcycle type. These
is compatible with upcoming features
might include weight, performance, and
such as start/stop, on-board diagnostics
emission limits, to name a few. Bosch will
(OBD), ISO 26262, and knock control.
Engine Management Systems
Engineered with passion for motorcycles
Engine management systems (EMS):
tailor-made with passion for motorcycles
Fascinating digital connectivity
Bosch Engine Management Systems for
high-performance two-wheelers
Expertise from a single source:
Bosch, the professional partner for two-wheelers
with engine management systems (EMS)
Electronic engine control for powerful, economical and safe two-wheelers
System components
EMS don’t just make two-wheelers cleaner and more economical;
Engine management
Air management
Further Information can be found at
they also enable new comfort and safety functions. This technology
1
Electronic control unit Motronic
7
Electronic throttle body
2
Crankshaft speed sensor
8
Temperature sensor
www.bosch-motorcycle.com
3
Camshaft speed sensor
9
Canister purge valve
4
Knock sensor
10
Manifold air-pressure and
temperature sensor
has already been proven a million times over in passenger cars – now
motorcyclists too can enjoy a captivating experience on the road.
Already established for cars, electronic engine management is making
inroads into the two-wheeler sector. Two-wheeler manufacturers who
choose to adopt EMS today increase the value of their brands in the
eyes of potential buyers and build up a valuable technological head start.
Cleaner and more economical
ble to integrate convenient functions that
Around the world, statutory emissions
aren’t possible in a mechanical system:
standards for two-wheelers are changing
for example, automatic speed control or
at different rates. At the same time, cus-
multiple riding modes (eco, sport). Auto-
tomers are becoming more environmen-
matic control of engine parameters also
tally conscious and new, more efficient
improves engine behavior in a cold start,
technology is becoming even more at-
resulting in a smooth cold start and quiet
tractive.
engine operation.
Compared to carburetor engines, two-
EMS technology lays the foundations for
wheelers using EMS consume 7 percent
incorporating certain safety functions,
less fuel in the World Motorcycle Test
such as the MSC® motorcycle stability
Cycle (WMTC). In real-world driving cy-
control system, which identifies hazard-
cles, which are typical of urban traffic,
ous situations and minimizes the risk of
they save as much as 16 percent. Those
skidding.
savings translate into a 7 to 16 percent
reduction in CO2 emissions.
Fun and fascination
Those who choose to ride a motorcycle
What’s more, the stable system technol-
do so in large part because of the expe-
ogy minimizes the risk of breakdowns as
rience itself. EMS ensure that they have
well as maintenance and repair costs.
a more dynamic ride and fast throttle re-
Flex-fuel engines (gasoline/ethanol) can
sponse. EMS can also be combined with
also be operated with EMS.
a continuously variable transmission,
which enables faster acceleration.
Safer and more convenient
The more use a two-wheeler sees, the
Digital connectivity holds out the prom-
greater the demand for convenience.
ise of further fascinating functionality, for
Electronic engine control makes it possi-
example connections with smartphones.
Fuel supply and injection
5
Electric fuel pump and
pressure regulator
6
Fuel injector
Bosch EMS – the right solution for every two-wheeler
Ignition
11
Spark plug
Exhaust gas treatment
12
Lambda sensor
Comprehensive portfolio and extensive expertise
Bosch offers a comprehensive range of technology from a single source for two-wheelers with EMS technology. This includes components for fuel injection, air management,
ignition, fuel supply, exhaust gas treatment as well as electronic control units. In addition to individual components, Bosch also offers integrated complete EMS solutions.
Systems competence and comprehensive know-how
As a system provider, Bosch knows the precise technical demands placed on each of
the various components and how to reconcile these as part of a functioning whole.
This optimum system integration means that Bosch maximizes system benefits so as to
reduce fuel consumption and CO2 emissions as well as improving engine performance.
Driving innovation and technology
As a driver of innovation and a technology leader within the automotive sector, Bosch
is continuously fine-tuning the EMS technology for two-wheelers as well. Bosch brings
technical innovations to market in a way that is suitable to large-scale series production. The company’s absolute commitment to research and development helps it to
offer innovative system solutions for two-wheelers and consistently improve vehicle
characteristics.
Ensuring quality and reliability
The quality and reliability of Bosch EMS technology are major factors in bringing technically sophisticated two-wheelers to market. Bosch has extensive expertise in developing automotive systems and is able to transfer this expertise to its EMS technology
for two-wheelers.
Global presence
All around the globe, Bosch has experts in EMS technology on hand near to its
customers. This proximity to two-wheeler manufacturers makes for close, flexible
collaboration. Short distances save time and help reduce costs.
Long-term partnership
Bosch has teams of experts working intensively and exclusively on two-wheeler developments. As a solid partner to two-wheeler manufacturers, Bosch offers end-to-end
support throughout the entire lifecycle of vehicles with EMS technology.
Gasoline Systems
Electronic control unit Motronic
for two-wheelers
Electronic control unit for two-wheelers
Task
The electronic control unit (ECU) collates all requirements for the engine, prioritizes and then implements
them. Examples of requirements include driver demand
and exhaust-system requirements in relation to the
mixture composition.
Torque is used as the key criterion for implementing
all requirements. According to this criterion, the
air-fuel ratio is adjusted in such a way that the torque
is provided as economically and cleanly as possible.
It also allows active driving safety systems such as
Customer benefits
▶Cost-effective two-wheeler EMS (EPM family*)
▶Low weight and small size (EPM family*)
▶Fast and easy calibration
▶Easy maintainability at service
▶Good thermal conductivity and temperature
stability
▶Vibration resistance (EPM family*)
* EPM = ECU powertrain mold
Electronic engine management systems (EMS) are the
core of clean and economical technology which allows
two-wheelers to fulfill increasingly strict emissions
legislation. EMS from Bosch enable precise, central
control of all functions relevant for engine operation
leading to reduced fuel consumption and emissions,
higher safety and comfort, and a more enjoyable,
dynamic ride. Compared with a carburetor, EMS can
save up to 7% of fuel in World Motorcycle Test Cycle
(WMTC) and up to 16% in real-world driving cycles.
ABS and motorcycle stability control MSC® to intervene in the engine torque.
Gasoline Systems | Electronic control unit Motronic for two-wheelers
Function
Technical features
Microcontroller
32 bit
The electronic control unit is realized as printed circuit
Housing Molded (EPM family*)
with various available housing types. It is also able to
Thermal concept
Proper heat dissipation
manage upcoming features such as on board diagnosis
Connector
≤ 44 pins (EPM family*)
(OBD), start/stop function, ISO 26262 (road vehicles
Possible applications
1 or 2 cyl. with idle speed
actuator (ISA) or electronic throttle
control (ETC)(EPM family*)
functional safety), knock control and bluetooth
Emission legislation
Up to Euro 5
Software
Specific SW platform covering
complete two-wheeler functionality
Optional
software features
Digital knock control,
Flex fuel
Fault handling
With service interface
End-of Line (EoL) programming
Possible, including
data variant handling
communication with smartphones, enhancing connectivity and user experience.
* EPM = ECU Powertrain Mold
Robert Bosch GmbH
Gasoline Systems
Postfach 30 02 40
70442 Stuttgart
Deutschland
www.bosch-motorcycle.com
Printed in Germany
292000P1C3-C/CCA-201409-En
© Robert Bosch GmbH 2014. All rights reserved, also regarding any disposal, exploitation, reproduction,
editing, distribution, as well as in the event of applications for industrial property rights.
Gasoline Systems
Fuel-supply components
for two-wheelers
Fuel-supply components for two-wheelers
Task
The fuel pump is built into the fuel tank and supplies
the right amount of fuel from the tank to the fuel
injector. The integrated pressure regulator ensures
the required pressure limit of the fuel path.
Technical features fuel pump
Customer benefits
Commutator
Carbon or copper
Pump parts
Metal
Compatibility
Gasoline, ethanol, “bad fuel”
Lifetime
> 6,000 h
Flow rate
≥ 60 l/h @ 12 V, 450 kPa
Fuel pump
▶ Compact design, small size and low weight
▶ Low power consumption
Technical features pressure regulator
Regulator type
Coil spring
▶ Robustness: increased lifetime (up to 6,000 h)
Valve seat sealing
Rubber
▶ Compatible with a wide fuel range
Valve protection
By filtration
Housing
Metal
(gasoline, ethanol, “bad fuel”)
Size (diameter x length) 17 mm x 29 mm
Pressure regulator
Pressure range
Variable, 250–900 kPa
▶ Small size and low weight
▶ Lower power consumption due to smaller overflow
▶ For PFI and GDI systems with regulated or
non-regulated fuel supply (wide pressure range)
▶ Compatible with a wide fuel range
(gasoline, ethanol, “bad fuel”)
Electronic engine management systems (EMS) are the
core of clean and economical technology which allows
two-wheelers to fulfill increasingly strict emissions
legislation. EMS from Bosch enable precise, central
control of all functions relevant for engine operation
leading to reduced fuel consumption and emissions,
higher safety and comfort, and a more enjoyable,
dynamic ride. Compared with a carburetor, EMS can
save up to 7% of fuel in World Motorcycle Test Cycle
(WMTC) and up to 16% in real-world driving cycles.
© Robert Bosch GmbH 2014. All rights reserved, also regarding any disposal, exploitation, reproduction,
editing, distribution, as well as in the event of applications for industrial property rights.
Robert Bosch GmbH
Gasoline Systems
Postfach 30 02 40
70442 Stuttgart
Deutschland
www.bosch-motorcycle.com
Printed in Germany
292000P1C5-C/CCA-201409-En
Gasoline Systems
Mechanical throttle body assembly
for two-wheelers
Throttle body assembly for two-wheelers
Task
The air supply to the engine is as important as the fuel
supply for the combustion of the air-fuel mixture. The
air-to-fuel ratio, the air movement and the composition
of the intake air contribute to clean, economical and
dynamic engine operation.
In gasoline motorcycle engines, the air supply to the
cylinder is controlled by means of a throttle body,
which reduces or enlarges the intake manifold crosssection.
Function
Customer benefits
▶ Engineering and large scale manufacturing are
available worldwide
▶ Cost optimized solution due to modular design
The throttle body assembly is mechanically attached to
the throttle and can be equipped flexibly with various
components. An angular-position sensor for position
feedback is included in all variants.
Technical features
Electronic engine management systems (EMS) are the
core of clean and economical technology which allows
two-wheelers to fulfill increasingly strict emissions
legislation. EMS from Bosch enable precise, central
control of all functions relevant for engine operation
leading to reduced fuel consumption and emissions,
Platform
Modular design
Throttle diameter
22–44 mm
Idle air leakage
1–1.2 kg/h
Idle bypass
Not available, seal required
Options for integration
Throttle position sensor
Combined charge sensor
Fuel injector
Idle speed actuator
higher safety and comfort, and a more enjoyable,
dynamic ride. Compared with a carburetor, EMS can
save up to 7% of fuel in World Motorcycle Test Cycle
(WMTC) and up to 16% in real-world driving cycles.
Robert Bosch GmbH
Gasoline Systems
Postfach 30 02 40
70442 Stuttgart
Deutschland
www.bosch-motorcycle.com
Printed in Germany
292000P1C2-C/CCA-201409-En
© Robert Bosch GmbH 2014. All rights reserved, also regarding any disposal, exploitation, reproduction,
editing, distribution, as well as in the event of applications for industrial property rights.
Gasoline Systems
Electronic throttle body
for two-wheelers
Electronic throttle body for two-wheelers
Electric actuators allow high levels of precision in air
intake adjustment. In gasoline engines, the air supply
to the cylinder is controlled by means of a throttle
body which reduces or enlarges the intake manifold
cross-section.
Function
The electronic throttle body comprises an electrically
driven throttle body and a non-contacting angular-position sensor for position feedback.
Customer benefits
▶ Engineering and large scale manufacturing lines are available worldwide (Korea, China, Europe,
Latin America, NAFTA)
▶ Cost optimized solution due to modular design
▶ Best in class Hall IMC (delay time, temperature independent characteristic)
The electronic engine management system triggers the
throttle body electrically. Trigger input variables are
the accelerator grip position and the requirements
of systems that can influence engine torque, including
adaptive cruise control or active safety systems such
as the MSC® motorcycle stability control system.
▶ Smooth engine shutdown and minimal NVH (noise, vibration and harshness)
Electronic engine management systems (EMS) are the
core of clean and economical technology which allows
two-wheelers to fulfill increasingly strict emissions
legislation. EMS from Bosch enable precise, central
control of all functions relevant for engine operation
leading to reduced fuel consumption and emissions,
higher safety and comfort, and a more enjoyable,
Technical features
Platform design
Modular
Throttle diameter
32–62 mm
Ambient temperature
-40–120°C
Actuation time
t90 < 110 ms
Ecxess torque (ice breaking)
≤ 1.8 Nm
Idle air leakage (ø 57 mm)
< 3.5 kg/h
Target weight
≤ 600 g
Interfaces
Analog and SENT capable
Options
Water heating pipes
NiRo bearing, EMC package
(motor and sensor)
dynamic ride. Compared with a carburetor, EMS can
save up to 7% of fuel in World Motorcycle Test Cycle
(WMTC) and up to 16% in real-world driving cycles.
Task
The air supply to the engine cylinder is as important
as the fuel supply for the combustion of the air-fuel
mixture. The air-to-fuel ratio, the air movement and
the composition of the intake air contribute to clean,
economical and dynamic engine operation.
© Robert Bosch GmbH 2014. All rights reserved, also regarding any disposal, exploitation, reproduction,
editing, distribution, as well as in the event of applications for industrial property rights.
Robert Bosch GmbH
Gasoline Systems
Postfach 30 02 40
70442 Stuttgart
Deutschland
www.bosch-motorcycle.com
Printed in Germany
292000P1C9-C/CCA-201409-En
Gasoline Systems
Canister purge valve
for two-wheelers
Canister purge valve for two-wheelers
Task
Limits for evaporative HC emissions are introduced for
the two-wheeler volume segments in India, ASEAN,
Brazil, the European Union, Japan and China; respective motorcycles need to be equipped with an ACF
(“active charcoal filter”). ACF can be purged via
mechanical CPV (canister purge valve, “reed valve”) or
solenoid CPV. Solenoid CPV are required to meet tight
limits for HC emissions in the exhaust gas and to
improve the driving behavior.
Function
An active charcoal filter traps the hydrocarbon vapors
Customer benefits
▶ Favorable price-to-performance ratio
▶ Production locations in Europe, America,
and Asia
▶ Precise control of the air mass and small
from the tank. Compared to a mechanical canister
purge valve, the solenoid canister purge valve meters
the flow of vapor from the active charcoal filter to the
engine in accordance with the engine’s operating
state.
tolerances due to pressure equalization
▶ Modular design (plug, in- and outlet arrangement,
variable air flow rate)
▶ Compact design and low weight
Technical features
Flow rates
(Laval nozzles)
3.5–6.5 m3/h
Variants planned
Two-wheeler specific variants
with < 3.5 m3/h
Electronic engine management systems (EMS) are the
core of clean and economical technology which allows
two-wheelers to fulfill increasingly strict emissions
legislation. EMS from Bosch enable precise, central
control of all functions relevant for engine operation
leading to reduced fuel consumption and emissions,
higher safety and comfort, and a more enjoyable,
dynamic ride. Compared with a carburetor, EMS can
save up to 7% of fuel in World Motorcycle Test Cycle
(WMTC) and up to 16% in real-world driving cycles.
Robert Bosch GmbH
Gasoline Systems
Postfach 30 02 40
70442 Stuttgart
Deutschland
www.bosch-motorcycle.com
Printed in Germany
292000P1CA-C/CCA-201409-En
© Robert Bosch GmbH 2014. All rights reserved, also regarding any disposal, exploitation, reproduction,
editing, distribution, as well as in the event of applications for industrial property rights.
Gasoline Systems
Fuel injector
for two-wheelers
Fuel injector for two-wheelers
Task
The fuel is injected so that it forms a homogeneous
mixture with the air; this mixture is fed into the area of
the combustion chamber most favorable for combustion. The aim is to prevent excessive fuel condensation
on the wall of the intake manifold or intake valve.
Function
The fuel injector is installed in the intake manifold in
front of the intake valve. Its solenoid valve is used to
control the injection start and duration. Several
ultra-precisely manufactured orifices ensure fine fuel
atomization. The shape of the fuel spray is determined
Customer benefits
▶ Adaptable to different engine displacements
▶ Ready for future emission requirements
▶ Reduced weight
▶ Reduced size
▶ Reduced noise level
▶ Large dynamic flow rate
for each engine by the position of the injector and the
configuration and number of orifices.
For small engines in particular, the reduced size allows
more flexible mounting. A low-noise injector is relevant
for two-wheeler end users, as they are more exposed
to noise from the vehicle and from the environment.
▶ Various spray patterns
▶ Small droplet size
Technical features
▶ Functionality and manufacturing processes
Sealing
of well experienced international production
network (quality & reliability)
Electronic engine management systems (EMS) are the
core of clean and economical technology which allows
two-wheelers to fulfill increasingly strict emissions
Grommet sealing (o-ring and clip in concept phase)
ConnectorStandard Mini Trapez @ 30° angle
Optional
Other connectors available
Design
Adapted for smaller size and
two-wheeler specific mounting
Tip
Flat or extended
Two-wheeler specific
noise requirements met by
Smart combination of design
and software adaptations
legislation. EMS from Bosch enable precise, central
control of all functions relevant for engine operation
leading to reduced fuel consumption and emissions,
higher safety and comfort, and a more enjoyable,
dynamic ride. Compared with a carburetor, EMS can
save up to 7% of fuel in World Motorcycle Test Cycle
(WMTC) and up to 16% in real-world driving cycles.
Robert Bosch GmbH
Gasoline Systems
Postfach 30 02 40
70442 Stuttgart
Deutschland
www.bosch-motorcycle.com
Printed in Germany
292000P1C4-C/CCA-201409-En
© Robert Bosch GmbH 2014. All rights reserved, also regarding any disposal, exploitation, reproduction,
editing, distribution, as well as in the event of applications for industrial property rights.
Gasoline Systems
Knock sensor
for two-wheelers
Knock sensor for two-wheelers
Task
“Knocking” occurs when the air-fuel mixture selfignites prematurely. Sustained knocking combustion
causes damage primarily to the cylinder head gasket
and cylinder head. By introduction of knock control the
risk of knocking can be avoided with the help of a
knock sensor to detect knocking and then adjust the
ignition time accordingly. The aim of knock control is
to obtain the maximum energy yielded from all kinds of
qualities of fuel.
Function
The knock sensor is mounted on the crankcase and
Customer benefits
▶ Increase of torque and reaching maximum
engine performance
▶ Reduction of fuel consumption
measures the structure-borne noise using a piezoelectric measuring element. Knocking is detected with its
typical frequencies and transformed by the sensor into
electrical signals which are fed to the control unit.
(and subsequently CO2 emission)
▶ Engine protection from uncontrolled combustion
▶ Reliable engine operation for different fuel quality
Electronic engine management systems (EMS) are the
core of clean and economical technology which allows
two-wheelers to fulfill increasingly strict emissions
Technical features
Characteristics
Linear over a large frequency range
Temperature range
Standard
Optional
-40°C–130°C
≤ 150°C
Technology
Piezo ceramic ring
Types
Plug-in or cable type
legislation. EMS from Bosch enable precise, central
control of all functions relevant for engine operation
leading to reduced fuel consumption and emissions,
higher safety and comfort, and a more enjoyable,
dynamic ride. Compared with a carburetor, EMS can
save up to 7% of fuel in World Motorcycle Test Cycle
(WMTC) and up to 16% in real-world driving cycles.
Robert Bosch GmbH
Gasoline Systems
Postfach 30 02 40
70442 Stuttgart
Deutschland
www.bosch-motorcycle.com
Printed in Germany
292000P1CB-C/CCA-201409-En
© Robert Bosch GmbH 2014. All rights reserved, also regarding any disposal, exploitation, reproduction,
editing, distribution, as well as in the event of applications for industrial property rights.
Gasoline Systems
Temperature sensor
for two-wheelers
Temperature sensor for two-wheelers
Task
Temperature information is used to improve cold-start
capability and for engine cooling and protection.
Function
The temperature sensor measures the temperature of
the coolant, oil, or fuel with an NTC sensor element
(Negative Temperature Coefficient): Its electrical
resistance is reduced as the temperature increases.
Technical features
Customer benefits
▶ Helps controlling cold starting, warm-up and
fan control, etc.
▶ Media resistant (e.g. water, fuel, oil, battery acid)
▶ Wide temperature range
Application
Measures coolant,
oil or fuel temperature
Temperature range
Standard
Optional
-40°C–130°C
≤ 150°C
Supply voltage
5V
Sensor element
NTC (Negative Temperature
Coefficient)
Vibration proof
≤ a(sin) = 300 m/s2
Electronic engine management systems (EMS) are the
core of clean and economical technology which allows
two-wheelers to fulfill increasingly strict emissions
legislation. EMS from Bosch enable precise, central
control of all functions relevant for engine operation
leading to reduced fuel consumption and emissions,
higher safety and comfort, and a more enjoyable,
dynamic ride. Compared with a carburetor, EMS can
save up to 7% of fuel in World Motorcycle Test Cycle
(WMTC) and up to 16% in real-world driving cycles.
Robert Bosch GmbH
Gasoline Systems
Postfach 30 02 40
70442 Stuttgart
Deutschland
www.bosch-motorcycle.com
Printed in Germany
292000P1CC-C/CCA-201409-En
© Robert Bosch GmbH 2014. All rights reserved, also regarding any disposal, exploitation, reproduction,
editing, distribution, as well as in the event of applications for industrial property rights.
Gasoline Systems
Crankshaft speed sensor
for two-wheelers
Crankshaft speed sensor for two-wheelers
Task
The crankshaft speed sensor measures the speed,
position and, optionally, the direction of rotation of the
crankshaft. This data is used by engine management
systems for controlling injection and/or ignition timing.
Function
The sensor is a Hall or inductive sensor. The crankshaft
is fitted with a target wheel which the sensor scans
using a non-contact method. The reference point is
determined by a missing element in the target wheel.
Customer benefits
Technical features
▶ Robust and compact design
Technology
Inductive or Hall
▶ Large engine speed range
Temperature range -40°C–150°C
▶ High measurement accuracy
▶ High signal accuracy
▶ Large air gap range
▶ Contactless measurement
▶ Helps to reduce emissions and fuel consumption
▶ Compatible with start-stop and hybrid applications
Electronic engine management systems (EMS) are the
core of clean and economical technology which allows
two-wheelers to fulfill increasingly strict emissions
legislation. EMS from Bosch enable precise, central
control of all functions relevant for engine operation
leading to reduced fuel consumption and emissions,
higher safety and comfort, and a more enjoyable,
dynamic ride. Compared with a carburetor, EMS can
save up to 7% of fuel in World Motorcycle Test Cycle
(WMTC) and up to 16% in real-world driving cycles.
Robert Bosch GmbH
Gasoline Systems
Postfach 30 02 40
70442 Stuttgart
Deutschland
www.bosch-motorcycle.com
Printed in Germany
292000P1CD-C/CCA-201409-En
© Robert Bosch GmbH 2014. All rights reserved, also regarding any disposal, exploitation, reproduction,
editing, distribution, as well as in the event of applications for industrial property rights.
Gasoline Systems
Camshaft speed sensor
for two-wheelers
Camshaft speed sensor for two-wheelers
Task
The camshaft speed sensor measures the position of
the camshaft.
Function
The camshaft sensor is designed as a non-contacting
Hall sensor. Due to the true power on function (TPO)
the sensor is quick start capable: It provides a position
information immediately after engine start.
Technical features
Technology
Single-Hall
Power-on function
True power on (TPO) for rapid
starting capability
▶ High measurement accuracy
Installation
Various positions possible
▶ Robust design
Temperature range
Up to 150°C (max. 250 h at 160°C)
Customer benefits
▶ Large air gap range
▶ Contactless measurement
▶ Rapid starting capability with TPO function
▶ Compact design, small sensor diameter
▶ High electromagnetic compatibility
▶ Helps to reduce emissions and fuel consumption
▶ Resistant against mineral based oils
▶ Can be installed in various positions
Electronic engine management systems (EMS) are the
core of clean and economical technology which allows
two-wheelers to fulfill increasingly strict emissions
legislation. EMS from Bosch enable precise, central
control of all functions relevant for engine operation
leading to reduced fuel consumption and emissions,
higher safety and comfort, and a more enjoyable,
dynamic ride. Compared with a carburetor, EMS can
save up to 7% of fuel in World Motorcycle Test Cycle
(WMTC) and up to 16% in real-world driving cycles.
Robert Bosch GmbH
Gasoline Systems
Postfach 30 02 40
70442 Stuttgart
Deutschland
www.bosch-motorcycle.com
Printed in Germany
292000P1CE-C/CCA-201409-En
© Robert Bosch GmbH 2014. All rights reserved, also regarding any disposal, exploitation, reproduction,
editing, distribution, as well as in the event of applications for industrial property rights.
Gasoline Systems
Manifold air-pressure and temperature
sensor for two-wheelers
Air-pressure and temperature sensor
Task
The manifold air-pressure sensor with temperature
sensor measures the pressure and air temperature in
the intake manifold. The volume of air that reaches the
engine cylinder can be calculated from the measured
air pressure and the engine speed. This input variable
is used to calculate the amount of fuel that needs to
be injected.
The temperature sensor measures the intake air
temperature allowing the engine management to adapt
the injected fuel mass.
Customer benefits
▶ Compact, lightweight sensor
▶ High EMC (electromagnetic compatibility)
▶ Customer specific connector and mounting
▶ High accuracy, long term durability
Function
The micromechanical sensor contains a piezoresistive
sensor element which generates a measurable electrical voltage when pressure is applied. The air pressure
can be measured via the voltage.
▶ Fast response time
Technical features
Electronic engine management systems (EMS) are the
core of clean and economical technology which allows
two-wheelers to fulfill increasingly strict emissions
legislation. EMS from Bosch enable precise, central
control of all functions relevant for engine operation
Measurement of
Intake air pressure, boost pressure
Pressure range
115, 250, 300, and 400 kPa
Technology
Silicon micromechanics,
1-chip concept
OptionalIntegrated temperature sensor
Operating temperature
-40°C–140°C
OutputAnalog
leading to reduced fuel consumption and emissions,
higher safety and comfort, and a more enjoyable,
dynamic ride. Compared with a carburetor, EMS can
save up to 7% of fuel in World Motorcycle Test Cycle
(WMTC) and up to 16% in real-world driving cycles.
Robert Bosch GmbH
Gasoline Systems
Postfach 30 02 40
70442 Stuttgart
Deutschland
www.bosch-motorcycle.com
Printed in Germany
292000P1CF-C/CCA-201409-En
© Robert Bosch GmbH 2014. All rights reserved, also regarding any disposal, exploitation, reproduction,
editing, distribution, as well as in the event of applications for industrial property rights.
Gasoline Systems
Combined charge sensor
for two-wheelers
Combined charge sensor for two-wheelers
Task
The sensor monitors the position of the throttle,
intake air pressure, and intake air temperature. The
engine control uses this data to determine the cylinder
charge, which is the basis for the calculation of fuel
injection.
Function
The combined charge sensor is a combination sensor
for fuel injected gasoline engines with mechanical
throttle body. This sensor integrates the functionality
of throttle position sensor, intake manifold air pressure
sensor and manifold air temperature sensor in one
Customer benefits
housing.
▶ Reduced packaging effort
▶ Reduced interface in combination with throttle
housing
▶ Reduced effort for connector, wiring harness
Electronic engine management systems (EMS) are the
Technical features
Integrated
sensor elements
Throttle position (angle),
T-MAP (Temperature + Manifold Absolute Pressure)
Angle sensor
Linear output
Air-pressure sensor
Linear output
Temperature sensor
NTC
(Negative Temperature Coefficient)
core of clean and economical technology which allows
two-wheelers to fulfill increasingly strict emissions
legislation. EMS from Bosch enable precise, central
control of all functions relevant for engine operation
leading to reduced fuel consumption and emissions,
higher safety and comfort, and a more enjoyable,
dynamic ride. Compared with a carburetor, EMS can
save up to 7% of fuel in World Motorcycle Test Cycle
(WMTC) and up to 16% in real-world driving cycles.
Robert Bosch GmbH
Gasoline Systems
Postfach 30 02 40
70442 Stuttgart
Deutschland
www.bosch-motorcycle.com
Printed in Germany
292000P1C8-C/CCA-201409-En
© Robert Bosch GmbH 2014. All rights reserved, also regarding any disposal, exploitation, reproduction,
editing, distribution, as well as in the event of applications for industrial property rights.
Gasoline Systems
Lambda sensor
for two-wheelers
Planar switching-type lambda sensor/two-wheelers
Task
By measuring the oxygen content in the exhaust gas,
the ECU gets relevant information for controlling the
air/fuel ratio in the combustion chamber.
Function
The planar switching-type lambda sensor reacts to an
exhaust gas transition from lean to rich (and/or rich
to lean) by an immediate output signal jump. The goal
is to detect the switching point at lambda = 1, the so
called stoi­chiometric point. An exact adjustment to the
stoichiometric point enables the catalytic converter to
Customer benefits
▶ Reduced emissions for cold and warm engine
starts due to fast sensor readiness and high
work with highest efficiency. The result is the reliable
adherence to the strictest exhaust-gas and diagnostic
regulations.
signal robustness
▶ High functional reliability, robust design
Technical features
▶ High temperature resistance
Technology
Planar sensor element with
integrated central heater
Peak temperature robustness
Up to 1,030°C (250 h)
Permanent operating temp. 930°C
Resistance to environmental influences
Vibration, water, salt, oil
totally submersible
Application specific variants
Yes
▶ World wide manufacturing network
Electronic engine management systems (EMS) are the
core of clean and economical technology which allows
two-wheelers to fulfill increasingly strict emissions
legislation. EMS from Bosch enable precise, central
control of all functions relevant for engine operation
leading to reduced fuel consumption and emissions,
higher safety and comfort, and a more enjoyable,
dynamic ride. Compared with a carburetor, EMS can
save up to 7% of fuel in World Motorcycle Test Cycle
(WMTC) and up to 16% in real-world driving cycles.
Robert Bosch GmbH
Gasoline Systems
Postfach 30 02 40
70442 Stuttgart
Deutschland
www.bosch-motorcycle.com
Printed in Germany
292000P1CG-C/CCA-201409-En
© Robert Bosch GmbH 2014. All rights reserved, also regarding any disposal, exploitation, reproduction,
editing, distribution, as well as in the event of applications for industrial property rights.
Spark plugs for two-wheelers
Task
Spark plugs
Gasoline engines require an ignition spark to start the
combustion of the air-fuel mixture in the combustion
chamber. This spark is generated at the spark plug.
The main task of the spark plug is to ignite the
compressed air-fuel mixture inside the combustion
chamber.
Function
The air-fuel mixture in the combustion chamber is
ignited by an ignition spark. The spark plug requires an
ignition voltage of up to 30,000 Volts to generate the
spark. The ignition voltage from the ignition coil is
transferred to the spark plug to generate the spark.
Customer benefits

Smooth
operation

Consistent
service life

Reliable
performance over the entire
cold starting

Complete
combustion and thus low
fuel consumption
Technical features
Electrode temperature
450 °C - 900 °C
Ignition voltage
15 kV - 30 kV
Thread diameter
M 10, M 12, M 14
Robert Bosch GmbH
Automotive Aftermarket
Postfach 41 09 60
76225 Karlsruhe
Germany
www.bosch.com
© Robert Bosch GmbH 2014. All rights reserved, also regarding any disposal, exploitation, reproduction,
editing, distribution, as well as in the event of applications for industrial property rights.