An intelligent energy module of an electrically assisted bicycle includes a battery management system, a controller and a motor. The battery management system includes a battery and an analog front end. The analog front end is electrically connected to the battery assembly. The controller includes a micro controller unit and a driver. The micro controller unit is electrically connected to the analog front end. The driver electrically connected to the micro controller unit. The motor is electrically connected to the driver and controlled by the driver. The battery assembly, the analog front end, the micro controller unit and the driver are disposed on a same circuit board.

The invention relates to a method (400) for discharging a high-voltage intermediate circuit (110) with a discharge circuit (120), wherein the high-voltage intermediate circuit (110) comprises an intermediate circuit capacitor (130), having the steps of: ascertaining (410) the voltage (U_ZK) of the high-voltage intermediate circuit (110); and actuating (420) the discharge circuit (120) on the basis of the ascertained voltage (U_ZK).

In an example embodiment, a system includes an inverter configured to operate in at least one of a charging mode or a drive mode, a cascaded direct current (DC)-DC converter, the DC-DC converter including a first portion of the inverter and at least one controller configured to selectively couple the first portion of the inverter to a first portion of the cascaded DC-DC converter during the charging mode, and selectively couple the inverter to a second portion of the cascaded DC-DC converter during the drive mode.

A connector device includes a motor-side connector 30 including a motor-side terminal 31, an inverter-side connector 60 including an inverter-side terminal 70, a motor case 10 including the motor-side connector 30, and an inverter case 50 including the inverter-side connector 60, the connectors 30, 60 being fitted together when the inverter case 50 is stacked on and fastened to the motor case 10 using bolts 120. When the fastening of the cases 10, 50 is completed, a predetermined gap is ensured between opposing surfaces 36B, 80A of the connectors 30, 60.

A power module for operating a vehicle, in particular an electric vehicle and/or a hybrid vehicle, comprising numerous semiconductor components, which form at least one topological switch; an input contact for supplying an input current to the semiconductor components; a control electronics for controlling the semiconductor components, to generate an output current based on the input current; an output contact for outputting the output current; wherein the control electronics is configured to set a gate current for one of the semiconductor components based on one or more status parameters for the semiconductor component.

Provided is a configuration in which, in an in-vehicle DC-DC converter, a limitation value of input power or output power can be determined according to the temperature of a power storage unit. In an in-vehicle DC-DC converter (1), a determination unit uses a scheme for determining whether or not input power of an input-side conductive path has reached an input power limitation value that is determined according to an input voltage of the input-side conductive path and a temperature range to which the temperature of an input-side power storage unit belongs, or a scheme for determining whether or not output power of an output-side conductive path has reached an output power limitation value that is determined according to an output voltage of the output-side conductive path and a temperature range to which the temperature of an output-side power storage unit belongs.

A utility cart includes a stored energy device that can be in the form of a Lithium Ion battery pack. The battery pack can include a main power output useful to drive high voltage components as well as the electric motor for motive power. The battery pack can also include one or more auxiliary outputs useful to provide auxiliary power to various other components. The auxiliary outputs can be either low and/or high voltage outputs. An auxiliary DC/DC output can be used to step down high voltage of the Lithium ion battery pack to lower voltages. A motor controller supply can also be provided as an auxiliary output to provide some power to a motor controller.

A high-voltage component for a high-voltage on-board electrical system of an at least partly electrically operated motor vehicle, including at least one housing device for at least one power electronics device of the high-voltage on-board electrical system, wherein the housing device at least partly provides at least one shielding device for reducing effects of electromagnetic interference, and wherein the shielding device includes at least one electrically non-conductive housing body of the housing device and at least one electrical discharge path arranged at least partly on and/or in the housing body and configured to connect to a vehicle reference potential.

A power converter apparatus for a vehicle includes: a cooling block provided with a refrigerant inlet and a refrigerant outlet, and with two cooling baths connected to the refrigerant inlet in parallel and each having a shape open to an outside, the cooling block being configured to allow refrigerants passing through the two cooling baths to be merged prior to being discharged through the refrigerant outlet; two cooling plates, wherein each of the two cooling plates covers an opening of an associated one of the cooling baths to provide a cooling chamber and includes a plurality of cooling fins protruding into the cooling chamber; and two cooling tubes, wherein each of the cooling tubes is coupled to the cooling block to provide a space for accommodating a power module between the cooling tube and an associated one of the cooling plates.

A method and a device test whether there is contact between a current collector and a contact wire of an overhead line. The current collector is located on a motor vehicle driven by an electric motor, and the contact wire extends in a direction of travel. The current collector has two contact regions oriented transversely to the direction of travel which are arranged one behind the other in the direction of travel and on each of which an end contact element is located. A pair of end contact elements located on the same side is connected to a measuring device and an electrical state variable is detected by the measuring device. Subsequently, it is determined in accordance with the detected state variable whether the pair of end contact elements is in contact with the overhead line.