Torqeedo Gmbh

L-3 Communications Magnet-motor Gmbh

Jens Biebach

Marc Hartmeyer

Philipp Krieger

Kay Peschke

Frank Despineux

Friedrich Boebel

Harry Hohn

Lars Lay

Philip Flores

Harry Hoehn

Friedrich Böbel

Harry Höhn

A generator set for generating an alternating current, includes a primary power unit, an alternating current generator, and a secondary power unit. The alternating current generator is rotationally coupled to the primary power unit, and converts power provided by the primary power unit into an electric power. The secondary power unit is connectable to the alternating current generator so as to increase the power generated by the alternating current generator.

Generator set for generating an alternating current

A drive for a boat includes a housing that is arranged underwater during operation, and that houses an electric motor that drives a propeller. The housing includes a cooling section that includes a coolant duct.

Drive for a boat with electric motor

A system for operating a boat equipped with an electric drive includes a component controller. The component controller includes a component interface for connecting a system component of the electric drive, and a communication interface for connecting the component controller to a system bus of the drive control.

System for operating a boat equipped with an electric drive

Device for providing electrical power for an electrical consuming device and/or for charging a battery in a boat

A method for charging an auxiliary voltage source that provides power for at least one additional component, the additional component being in addition to an electric drive that is powered by a main voltage, is described. The method includes electrically connecting a protection and/or control circuit to the main voltage source via a DC-to-DC converter configured for power supply, and to the auxiliary voltage source via a reverse blocking valve. The method further includes electrically connecting the main voltage source to the auxiliary voltage source via a charging device. The method still further includes charging the auxiliary voltage source via the main voltage source.

Electric drive for a vehicle

An outboard engine for propelling a boat includes a propulsion unit with an electric motor, a propeller driven by means of the electric motor, a control unit for controlling the power of the electric motor, and a water detection means. The water detection means is adapted to detect whether the propeller is submersed in water. The power of the electric motor can be influenced via the control unit based on the detection.

Boat engine for propelling a boat

A boat has a battery located within an interior of a battery-housing, which includes a waste gas outlet that has a gas-permeable seal and a pressure relief valve. The battery housing is gastight and watertight with the exception of the waste gas outlet. The gas-permeable seal is water-impermeable and comprises a semi-permeable diaphragm that allows the passage of water vapor out from the interior of the battery housing, but prevents the passage of water vapor into the interior of the battery housing.

Boat with electric drive

A drive for a boat, in particular a sailing boat, comprising an electric motor configured for the operation in the first quadrant and in the fourth quadrant, a propeller connected to the electric motor, and a control device. The control device is configured to operate the electric motor in the fourth quadrant in such a way that flow energy transmitted via the propeller to the electric motor is regenerated into electrical power. The control device is further configured to operate the electric motor such that a product of the propeller's pitch and rotational speed is smaller than a relative flow speed between the water and the drive.

Drive for a boat and method for operating a drive for a boat

A boat having an electric motor coupled with an electrical store is disclosed. The electrical store includes a storage element, and positive and negative poles in current-conducting connection with the storage element. An isolating circuit element is operatively connected to a user activatable emergency stop switch. The isolating circuit element is configured to, upon activation of the emergency stop switch, isolate the current-conducting connection between the storage element and at least one of the poles.

Electric drive and emergency stop switch for boats

A boat is disclosed. The boat includes an electrical storage having a storage element electrically connected to a positive and a negative pole. The boat also includes a water sensor configured to determine whether one of the poles is in contact with water, and a disconnection device operatively connected to the water sensor and configured to interrupt the electrical connection between at least one of the poles and the storage element when the water sensor determines that one of the poles is in contact with water.

Electrical accumulator with water sensor

A circuit and a method for connecting a first electrical storage device and a second electrical storage device in parallel is disclosed. The first electrical storage device and the second electrical storage device have in each case a no-load voltage U, Uand an impedance Rand R, respectively, and have connecting terminals for charge withdrawal or charge supply. The no-load voltage Uof the first storage device is greater than the no-load voltage Uof the second storage device. In the case of a charge withdrawal, a charge is initially only withdrawn from the first storage device and the second storage device is connected in parallel with the first storage device when the difference of the voltage dropped across the connecting terminals of the first storage device and the no-load voltage Uof the second storage device is less than a predetermined differential add-on voltage.

Connecting electrical storage devices in parallel

A method for charging an auxiliary voltage source of a boat having an electric drive that is powered by a main voltage source of the boat, the auxiliary voltage source providing power for at least one additional component, is described. A protection and/or control circuit is electrically connected to the main voltage source via a DC-to-DC converter configured for power supply, and to the auxiliary voltage source via a switch or a reverse blocking valve. The auxiliary voltage source is charged via the main voltage source.

Boat with electric drive and emergency off switch

A method of controlling a DC/AC converter () comprises the steps of (a) providing a desired AC side reference value (V); (b) setting a reference correction value (V); (c) calculating an AC side reference signal (V) as a function of the desired AC side reference value (V) and the reference correction value (V); (d) obtaining an actual AC side signal (V); and (e) calculating a converter control signal (M) as a function of the AC side reference signal (V) and the actual AC side signal (V); wherein the setting of the reference correction value (V) is based on a relation of the desired AC side reference value (V) and the actual AC side signal (V).

Method of controlling a DC/AC converter

The invention relates to a boat with an electric drive that comprises electric components, especially an electric motor and an electric storage unit. The components are interconnected via an electric grid. At least one of the components is connected to the grid by means of a first connection means, the first connection means comprising first connection means main contacts for connecting the at least one component to the grid, and a second connection means being provided for connecting the electric storage unit to or disconnecting it from the grid. According to the invention, the first connection means comprises at least one pair of auxiliary contacts for connecting the at least one component to a monitoring line and said monitoring line is operatively connected to the second connection means.

Growing community of inventors

Tutzing, Germany

Jens Biebach