Motorboats and sailing yachts

The electric drive for marine applications with the ready-to-install inboard motor EDM160 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.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.

Scope of delivery of the electric drive for marine applications

• Electric motor
• Gearbox
• Inverter
• DC/DC converter (400 V / 12 V)
• On-board charger
• Cooling system for the battery
• Cooling system for the drive
• E-box including control unit
• All necessary cables
• Charger inlet
• Upon request: display and thrust lever

Flexible with high-voltage battery selection

• The HV battery was deliberately omitted from the scope of delivery of the EDM. This ensures a high degree of flexibility, depending on the specific requirements of the application with regard to capacity, form factor, commercial aspects, etc.
• Bosch Engineering supports the EDM customer with the important matter of battery selection and will recommend suitable solutions.
• Thanks to a standardized communication interface, the EDM is compatible with various batteries available on the market.
• The battery charging and cooling functions are covered by the EDM.

The electric drive for marine applications is in its final development phase and will be available to selected pilot customers from Q2 2026.

• Everything from a single source: fully integrated plug-and-play solution (excl. battery) for reliable operation and convincing performance.
• Sophisticated drive system design: result of decades of experience and innovation in the field of drive technologies.
• Straightforward replacement of internal combustion engines: engineered for seamless integration and straightforward switch to zeroemission propulsion.
• Light and powerful: optimized for high efficiency and performance combined with low weight for maximum range.
• Compact dimensions and design: space-saving and flexible integration into diverse ship architectures.
• State-of-the-art control software: for precision maneuvering, optimum energy efficiency, and high operational reliability.
• High-quality volume-production components: tried-and-tested quality and robustness of our large-volume production in the passenger car and commercial vehicle sector.

The EDSP application is primarily intended for recreational craft, but commercial applications can also be made possible at the customer's request. The marine drive platform combines Bosch powertrains with third-party components such as battery packs, thrust levers, and displays. Along with comprehensive integration support, you also receive the necessary drive software, information on component wiring and configuration, as well as all the assistance that you need to put an electrically powered boat into operation.

Our Bosch components:

• Electric motors SMG180 and SMG220
  Compact and powerful
• Inverter INVCON 3.3
  Tailored to our electric motors, including supply of the 12 V electrical system
• Central drive control unit EDCU
  Reliable hardware for controlling the propulsion as well as the energy and charging management
• Reduction gear units EDT180 and eGFZ9125
  For combination with SMG180 and SMG220, available with different transmission ratios

The EDSP is being rolled out in and is currently in use by selected pilot customers.

• Predefined solution: less in-depth expertise required on the part of the customer.
• Sophisticated and flexible drive design: based on decades of experience and innovation in the field of drive technologies.
• Easier and faster projects: significant reduction in the time to market.
• Greatly reduced project costs: easier, faster, and more cost-effective integration into a wide range of marine applications, covering both planing and displacement craft.
• High flexibility: selection of third-party components such as battery packs, thrust levers, and displays.

We offer boat manufacturers, shipyards, and integrators rapidly available and cost-effective components with a high level of maturity and excellent performance figures. We are happy to advise you on the right component configuration for your application as well as in other areas such as system and software engineering.

Our Bosch components:

• Electric motors SMG180 and SMG220
  Compact and powerful
• Inverter INVCON 3.3
  Tailored to our electric motors, including supply of the 12 V electrical system
• Central drive control unit EDCU
  Reliable hardware for controlling the propulsion as well as the energy and charging management
• Reduction gear units EDT180 and eGFZ9125
  For combination with SMG180 and SMG220, available with different transmission ratios

Our drives, which are available in the power levels 90 kW, 140 kW and 360 kW, are characterized by a very high power density and robustness. The inverters impress with their very high efficiency. The 800 V inverter uses the latest silicon carbide technology. The 400 V inverter is equipped with a high-performance DC/DC converter to supply the 12 V devices. The gearboxes are optimally designed for the respective electric motors and operate quietly and with minimal maintenance. Our central drive control unit is also based on solutions from large-volume production and features robust, reliable and state-of-the-art marine-compliant functionality.

Our electric drive components are already being used in volume production applications, such as the daycruiser “1” manufactured by the Swedish boat builder X Shore, which uses a combination of our SMG220 motor-generator, Invcon 3.3 inverter, and eGFZ9125 transmission. Our drive solution allows the X Shore 1, a recreational boat with a length of 6.50 m and weight of 1,700 kg, to reach speeds of up to 55 km/h.

• Standardized components available from stock for the rapid implementation of your electrification strategy
• Tried-and-tested technologies from the automotive sector ensure high efficiency, reliability, and robustness
• Powertrains with excellent price-performance ratio thanks to the use of sophisticated volume-production and engineering processes from Bosch
• Modular solution enables flexible configuration of the electric powertrain
• High power density and excellent efficiency
• Compact dimensions facilitate geometric integration
• Quick and efficient engineering service based on in-depth expertise and long-term practical experience