New energy for marine applications

With the electric motors for motorboats and sailing yachts, Bosch Engineering offers a compact and powerful solution for the electrification of traction drives and work functions in mobile machinery. Bosch Engineering adapts high volume series proven automotive components specifically for the requirements of the marine market. As a result, high power densities combined with a high degree of product maturity now also available for smaller volume applications.

Electric motor SMG 180

Electric motor SMG 220

The SMG 230 delivers up to 80 kilowatts more power than a comparable 400-volt machine with identical weight or, with the same level of performance, boasts more compact dimensions and a much lower weight.

Electric motor SMG 230

Control unit with integrated DC/DC converter for electric drives. 
The inverter provides customized control for Bosch electric motors in mobile machinery. Simple configuration allows quick adaptation to a wide range of applications. For safety functions, high performance levels are achieved in accordance with the Machinery Directive.

Inverter InvCon 3.3

The fourth-generation inverter from Bosch Engineering was adopted from large-volume production for commercial vehicles and modified to meet the specific requirements of mobile machinery and marine. 
applications.

Inverter Gen4

Reliable hardware for controlling the propulsion as well as the energy and charging management. 
The electric drive control unit is a central processing unit for the control of the drive system, the high-voltage supply and the coordination of subsystems and auxiliary units. Software and hardware are specially designed for use in mobile machines like as mining, agricultural, material handling, construction and motorboats and sailing yachts.

Electric drive control unit (EDCU)

Compact coaxial reduction gearbox for electrified mobile applications. Especially in combination with the SMG 180 electric motor, the EDT180 enables highest speeds in your mobile machinery.

Electric drivetrain  transmission EDT180

Developed specifically for high-speed electric motors, eGFZ9125 
combines high power density with an efficiency of up to 98 % 
while optimizing noise. This enables the integration of a zero-emission drive into existing installation space requirements

ROTATRAC eGFZ9125 series 10

Bosch Engineering, a 100 percent subsidiary of Robert Bosch, is a development partner, who offers the adaptation of electronic systems for the mobility of tomorrow, based on proven and tested Bosch automotive series technology. The internationally positioned engineering experts provide tailor-made solutions within electronic systems and software for challenging applications, from concept development through series production.

Bosch Engineering GmbH

METSTRADE: Bosch Engineering presents new plug-and-play complete solution for electrified drive systems

Abstatt - The integration of an electric inboard motor into recreational boats or commercial vessels involves considerable engineering effort and requires a high level of understanding of the overall system. With a new complete system, the electric drive for marine applications (EDM), Bosch Engineering now allows shipbuilders, system integrators, and naval architects to quickly and easily implement the high-voltage electrification of boats and small ships. "The EDM is designed as a plug-and-play solution, for which we supply the complete electric inboard motor and additional system components from a single source. We thus provide a simple and efficient means of electrification using a clean, quiet, yet powerful drive," explains Philipp Kurek, who is responsible for off-highway and maritime solutions at Bosch Engineering.
Bosch Engineering delivers the EDM as a ready-to-install inboard motor, which combines the electric motor with gearbox, the inverter, the on-board charger, the heat exchanger, an E-box with control unit, and the necessary cooling pumps in a single compact unit. The scope of delivery of the system also includes the high- and low-voltage cabling, a charger inlet along with a display and control elements for the ship's cockpit. The EDM produces 160 hp (continuous) and weighs only around 180 kg. With the resulting high power density of around 0.7 kW/kg, it sets the benchmark for electric inboard motors in this performance class. For higher power requirements, two EDMs can also be coupled to form a twin drive system with two propellers.

The installation dimensions of the compact EDM unit are comparable to those of an inboard combustion engine with the same power output and offers great flexibility for mechanical integration. This enables easy integration into an existing hull design or replacement of the drive as a retrofit solution. For applications with particularly limited space, a variant is also available with which the inboard components are delivered separately rather than preassembled, meaning that they can be positioned freely in the engine compartment.

As well as cooling the integrated drive components, the thermal management of the EDM also ensures effective temperature control of the high-voltage battery. The high-voltage battery is not included in the scope of delivery. Instead, Bosch Engineering will recommend suitable solutions, and the customer is free to choose according to their individual requirements and the available installation space. The standardized communication interface of the EDM ensures software compatibility with the various high-voltage batteries available on the market. This provides great flexibility in selecting the optimum configuration of the overall system. The battery is charged via the EDM's integrated charger. This greatly simplifies the integration of the charging function into the ship's E/E architecture. The EDM also provides drive-related information and travel data for visualization on the supplied display. Other safety-relevant and time-efficient features of the EDM include intelligent system responses to unplanned failures or faults, guided troubleshooting using a diagnostic device, as well as optional connectivity via the cellular network. The latter enables functions such as software updates and monitoring of selected drive parameters over-the-air (OTA).

Bosch Engineering supports EDM customers from the initial installation concept to the eventual commissioning of the drive. In doing so, the company combines its extensive, long-standing expertise in automotive electrification and the motorization of marine applications. The system components of the EDM are sourced from Bosch's production for the automotive sector and satisfy the high quality standards of the passenger car and commercial vehicle segments.

In addition to the EDM, Bosch Engineering also offers the electric drive system platform (EDSP) for the electrification of maritime applications. The EDSP is a modular solution with which the various drive components, such as the electric motor, gearbox, inverter, and control unit, can be individually combined to suit specific requirements. The components can also be supplied as separate modules for shipbuilders who wish to perform the electrification themselves.
To allow larger and heavier marine applications to be equipped with an electric inboard motor in the future, Bosch Engineering plans to expand the solution to include additional performance classes.

The electric drive for marine applications (EDM) will be presented for the first time at METSTRADE, in Hall 7, Stand 07.218.

METSTRADE: powerful 800-volt electric drive from Bosch for applications on recreational and working boats

Abstatt – electric drives are becoming increasingly prevalent in the boat and ship sector. At METSTRADE, Bosch Engineering is unveiling a newly developed, high-performance electrification solution for electrical systems with voltages of up to 800 volts, which further extends the potential use cases of electric drives in maritime applications while also raising system efficiency. “With the latest generation of our electric motor and inverter with silicon carbide power modules, we offer a complete system that allows not only recreational boats but also larger sailing yachts and working boats to be operated with an efficient, quiet, yet still very powerful electric drive,” states Philip Kurek, who is responsible for off-highway and maritime solutions at Bosch Engineering.
The new electric motor SMG 230 is designed for system voltages of 400 to 800 volts. In an ideal voltage and temperature range, it offers a continuous power output of up to 200 kilowatts and around 250 newton meters of torque. Thanks to the 800-volt technology, the power density has also been increased significantly. The SMG 230 delivers 80 kilowatts more power than a comparable 400-volt machine with identical weight or, with the same level of performance, boasts more compact dimensions and a much lower weight.

The inverter with silicon carbide semiconductors, which is also designed for electrical voltages of up to 800 volts, is characterized by its impressive efficiency of more than 99 percent. The silicon carbide semiconductors in the power modules enable faster switching operations, meaning that significantly less energy is lost in the form of heat.

Bosch’s complete kit for the electrification of boat drives comprises electronic control units, inverters, electric motors, and transmissions for both 400- and 800-volt applications. This gives shipyards and system integrators maximum flexibility when adapting the electrification strategy to the respective requirements and allows them to integrate the relevant components quickly and easily into their ships. The system components are based on modern automotive technology and combine high robustness with utmost reliability. With its comprehensive kit for the electrification of ship drives, Bosch is making a crucial contribution to the ongoing reduction of greenhouse gas and noise emissions.

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Tailored to our electric motors, including supply of the 12 V electrical system

Inverter INVCON 3.3

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The inverter provides customized control for Bosch electric motors in marine applications. The configurable software and control parameters allow the flexible use in different use cases. The integrated DC/DC converter, the A/C compressor connection as well as the integrated torque and speed controller allow maximum functionality. The inverter is developed and tested according to Bosch high volume production process for highest reliability.

Inverter INVCON 3.3 OHW

Reliable and powerful marine electrification

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Inverter INVCON 3.3 OHW

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