Bosch presents new electric motor for boats
The new SMG 230 electric motor is designed for system voltages from 400 to 800 volts. With a continuous output of up to 200 kilowatts, the drive enables the electrification of larger boats and ships with a displacement of 20 to 30 tonnes. The motor achieves a torque of around 250 Newton metres. The power density has also been significantly increased thanks to the 800-volt technology. According to Bosch, the inverter with silicon carbide semiconductors, which is also designed for electrical voltages of up to 800 volts, is characterised by a high efficiency of more than 99 per cent.
“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,” said Philipp Kurek, responsible for the Off-Highway and Marine division at Bosch Engineering.
Bosch has been offering the EDSP marine drive platform for some time now, which boat manufacturers, shipyards and system integrators can use to realise the electrification of boat drives. Two smaller electric motors for boats are already being offered as part of the EDSP, namely the SMG 180 with 90 kW output and the SMG 220 with 140 kW output. Both electric motors are not only marketed for boats but also for off-highway applications.
One of the customers already using electric boat motors from Bosch is the Swedish electric boat manufacturer X Shore. They are working together with Bosch Engineering to improve the electric drive of their boats.
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