Engine management systems for two-wheeler

A couple riding an ICE vehicle on the city street

Electronic engine management systems are the core of efficient technology which allows two-wheelers and powersports vehicles to fulfill new emission regulations. Bosch offers the full range of engine management systems' technologies specially designed for two-wheelers. This includes components for fuel injection and supply, air management, ignition and exhaust-gas treatment as well as engine control units.

full system range

full range of engine management systems' technologies specially designed for two-wheelers and powersports vehicles

up to 16%

reduction in CO2 emissions compared with carburetor engines. (1)

(1) (Bosch research 2012)

Euro 5/ BS6

fulfills emission regulations up to Euro 5 and BS6 (Bharat stage) including OBD I/II

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Core components of the engine management systems

Engine control unit for small bikes

The engine control unit for small bikes is a small and light engine control unit for small bikes, especially in emerging markets.

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Engine control unit for high-performance bikes

The engine control unit for high-performance bikes is a powerful and widely scalable engine control unit.

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Fuel injector two-wheeler

The fuel injector was adapted for smaller size engines and two-wheeler-specific mounting.

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Additional components

Lambda sensor mini heated

Small bikes and high-performance bikes - Lambda sensor measures the oxygen content in the exhaust gas and helps in optimizing the air/fuel-ratio. The lambda sensor mini heated was developed specially for the needs of two-wheelers. The M12 thread and the optimum protection tube design allows compact installation, with optimized heater power for two-wheelers . The planned life time is about 100.000 km.

Lambda sensor

Crankshaft speed sensor

Small bikes and high-performance bikes - 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. 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 pulse wheel. Due to its high accuracy, the crankshaft speed sensor helps reducing emissions and fuel consumption.

Camshaft speed sensor

Knock sensor

High-performance bikes - The knock sensor is mounted on the crankcase and measures the structure-borne noise using a piezoelectric sensing element. Knocking is detected with its typical frequencies and transformed by the sensor into electrical signals which are fed to the control unit. The knock sensor helps to reduce fuel consumption and, subsequently, CO2 emissions.

Temperature sensor

Small bikes and high-performance bikes - The temperature sensor measures the temperature of the coolant, oil or fuel. This information is used to improve cold-start capability and for engine cooling and protection. The temperature sensor helps controlling various functions, such as cold starting, for safer and more comfortable engine operation.

Fuel-supply module

Mechanical throttle body assembly (licensing only)

Electronic throttle body

High-performance bikes - The electronic throttle body comprises an electrically driven throttle body and a non-contacting angular-position sensor for position feedback. 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 motorcycle stability control (MSC) system. The design of the electronic throttle body is optimized to meet weight and size requirements for two-wheeler applications.

Manifold air-pressure and temperature sensor

High-performance bikes - The manifold air-pressure and temperature sensor measures the pressure and air temperature in the intake manifold. 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. The sensor ensures an optimized air-fuel mixture for more efficient combustion.

Throttle position sensor

Features of the electronic engine management systems from Bosch

Engine management systems from Bosch enable precise, central control of all functions relevant for engine operation leading to reduced emissions, higher safety, comfort, and a more enjoyable, dynamic riding. Electronic control allows fuel to be burnt efficiently. Engine management systems can precisely control the amount of fuel injected as well as the timing of ignition. The technology also offers the opportunity to manage the engine by monitoring vehicle feedback and adapting accordingly – based on the lambda value, the regulation of the injector ensures the optimum combination of air and fuel.

Bosch offers the full range of engine management systems technologies specially designed for two-wheelers. This includes components for fuel injection and supply, air management, ignition and exhaust-gas treatment as well as engine control units. Complete electronic engine control, in combination with sophisticated sensors, provides significant benefits over conventional carburetor systems, ranging from intelligently controlled fuel injection to improved emission values.

System benefits

System benefits for riders

Bosch engine management systems offer optimally coordinated system solutions especially for two-wheeler – from small bikes in emerging markets to high-performance bikes
Complete electronic engine control, in combination with sophisticated sensors, provides significant benefits over conventional carburetor systems, ranging from intelligently controlled fuel injection to improved emission values
Integrated Bosch systems offer a more enjoyable and dynamic two-wheeler and powersports experience
Engine management systems, the innovative core technology for powerful and efficient riding

Bosch - Your partner for two-wheeler & powersports

Two-wheeler and powersports experts worldwide for every region and market

Global presence | Bosch has experts with passion for two-wheeler and powersports on three continents at hand. The Two-Wheeler & Powersports business unit has locations in Japan (global headquarter), the U.S., India, Europe, and China. This proximity to two-wheeler and powersports manufacturers makes for close, flexible collaboration and provides the best service possible.

Tried and tested components connected to innovative system solutions

Systems and connectivity expertise | As a systems provider with more than 30 years of experience in the two-wheeler and powersports market, 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 to further reduce fuel consumption and CO, emissions plus improve engine performance, safety, and connectivity to make riding safer, more efficient and fun.

Optimal support for the entire lifecycle

Reliable partnership | Bosch has teams of experts working intensively and exclusively on two-wheeler and powersports technology developments. As a solid partner to two-wheeler and powersports manufacturers, Bosch offers end-to-end support throughout the entire lifecycle of vehicles with technologies of connectivity systems, assistance systems, powertrain systems and electrification.

Comprehensive technology for individual configurations and solutions

Comprehensive portfolio and know-how for vehicles, infrastructure, and services | Bosch offers a comprehensive range of technology for two-wheelers and powersports from a single source, by poling all relevant activities worldwide in one business unit. This includes components for fuel injection, air management, ignition, fuel supply, exhaust gas treatment, safety systems, infotainment, and connectivity for the wide range of vehicles, two-wheelers and powersports. In addition to individual components, Bosch also offers integrated complete solutions. As a partner to manufacturers, Bosch can draw not only on a comprehensive range of technology but also on years of experience and extensive expertise.

Adapting automotive expertise to sophisticated two-wheelers and powersports

Quality and reliability | The quality and reliability of Bosch technology are major factors in bringing technically sophisticated two-wheelers and powersports to the market. Bosch has extensive expertise in developing automotive systems and is able to transfer its expertise to its system solutions for two-wheelers and powersports.

 An innovative team of experts committed to improving two- wheelers and powersports 

Innovative strength and speed | As a driver of innovation and a technology leader within the mobility sector, Bosch is continuously fine-tuning technology for two-wheelers and powersports with technical innovations that are suitable to large-scale production. Bosch's absolute commitment to research and development allows it to offer innovative system solutions for two-wheelers and powersports, and consistently improve vehicle characteristics.

Engine management systems Boxberg riding event

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Two wheeler and powersports