A method of safely controlling a compaction machine, specifically a method of safely controlling a vibratory compaction machine includes at least one vibrating roller connected to at least one electric movement drive of the machine and at least one electric vibration drive, a central machine control unit, a battery system and a control unit of the battery system, according to which the central control unit of the machine overrides the control unit of the battery system. A compaction machine whose central control unit of the machine is data-connected to a control unit of the battery system which is hardwired to at least one control convertor of at least one electric drive of the machine.

A method for monitoring a failure in a high-voltage circuit of a vehicle includes obtaining a supply voltage of a high-voltage power supply device; obtaining component voltage(s) on one or more high-voltage components powered by the high-voltage power supply device; comparing the supply voltage with each component voltage; and determining that a failure exists in the high-voltage circuit when the voltage difference between the supply voltage and any one of the component voltage(s) exceeds a predetermined threshold. Also disclosed are a computer readable storage medium, an equipment for monitoring a failure in a high-voltage circuit of a vehicle, a high-voltage circuit system for a vehicle, and a vehicle comprising the high-voltage circuit system.

The available power surge capacity of a battery is detected. The available steady state regeneration energy capacity of the battery is also detected. The available battery generation power, available from an electric motor, is detected as well. The generation power available from the electric motor is applied to regenerate (or recharge) the battery based upon the available power surge capacity, and the available steady state capacity of the battery.

A device operates an electrical energy store for supplying components of an electrically operable motor vehicle, wherein operating limits are defined in each case for one or more characteristic variables of the energy store. A control unit prevents the operating limits from being exceeded during normal operation of the energy store. The device has an interface for receiving a user-side request message from an apparatus, the request message including change information about an intended shift in the operating limit of at least one of the characteristic variables. The device has a computing unit which is designed, upon receipt of the request message, to check and permit the shifting of the operating limit of at least one of the characteristic variables in accordance with at least one operational history which is stored for the energy store and which represents information derived from one or more of the characteristic variables of the energy store about past operating conditions of the energy store if at least one of the following conditions is satisfied: information determined from the at least one operational history and representing the current state of health satisfies a predetermined criterion; and/or a monetary transaction initiated by the computing unit in accordance with the current state of health has been completed.

A power conversion device includes a case including an upper case and a lower case; an inverter that is accommodated in a first partial case and is fixed to the first partial case, the first partial case being one of the upper case and the lower case; and a capacitor that is connected to the inverter by a positive electrode bus bar and a negative electrode bus bar, the capacitor being disposed in an internal space of a second partial case that is another of the upper case and the lower case. The first partial case includes a fastening portion that extends from an internal space of the first partial case to the internal space of the second partial case. In the internal space of the second partial case, the capacitor is fastened to the fastening portion.

A power conversion device includes a case including an upper case and a lower case; an inverter that is accommodated in a first partial case and is fixed to the first partial case, the first partial case being one of the upper case and the lower case; and a capacitor that is connected to the inverter by a positive electrode bus bar and a negative electrode bus bar, the capacitor being disposed in an internal space of a second partial case that is another of the upper case and the lower case. The first partial case includes a fastening portion that extends from an internal space of the first partial case to the internal space of the second partial case. In the internal space of the second partial case, the capacitor is fastened to the fastening portion.

The invention relates to a method for controlling the operation of an energy storage system (10) in a vehicle (30), preferably an electric or hybrid electric vehicle, said energy storage system (10) comprising at least two battery packs (12) connected in parallel, said energy storage system (10) being adapted to provide at least a nominal power functionality for propulsion of said vehicle (30) using an allowed operating extent of all of said battery packs (12) of said energy storage system (10), said allowed operating extent being a nominal working range of said battery packs (12); said method comprising disconnecting at least one battery pack (12); and setting said allowed operating extent for said remaining connected and active battery pack(s) (12) to an increased working range so as to enable said energy storage system (10) to provide said nominal power functionality to said vehicle (30), the method further comprising monitoring at least one accumulated parameter indicative of the operation of said energy storage system (10) from the time of disconnection of said at least one battery pack (12), and when said accumulated parameter reaches a threshold value, setting said allowed operating extent for said remaining battery pack(s) (12) to a decreased working range. The invention also relates to a control unit for controlling the operation of an energy storage system (10).

A system for reducing overdraw of power in a vehicle includes a power source having a battery and a fuel cell circuit. The system further includes an ECU that transmits a power limit signal to a vehicle controller, the power limit signal corresponding to an instantaneous maximum amount of power of the power source. The ECU also determines a battery allowed power corresponding to an amount of power available to be drawn from the battery to cause the SOC of the battery to remain above a lower SOC threshold. The ECU also determines a current battery power draw from the battery corresponding to an instantaneous amount of power being drawn from the battery. The ECU is designed to reduce the instantaneous maximum amount of power in the power limit signal when the current battery power draw is greater than the battery allowed power, reducing the current battery power draw.

A vehicle power supply system provides redundant high-voltage and low-voltage power supply for an electric vehicle or a hybrid-electric vehicle. The power supply system includes first and second high-voltage battery units. A positive terminal of the first unit is connected to a positive power distribution arrangement and a positive terminal of the second unit is connected to a negative terminal of the first high-voltage battery unit via an intermediate power distribution arrangement, and a negative terminal of the second unit is connected to a negative power distribution arrangement. The system has a first bypass line connecting the positive power distribution arrangement with the intermediate power distribution arrangement, and a second bypass line connecting the negative power distribution arrangement with the intermediate power distribution arrangement.

A system for an electrically-driven vehicle includes at least one first energy store, which is of an accumulator type, and at least one second energy store, of a type which differs from an accumulator type. The second energy store has an energy density lower than an energy density of the first energy store, and has a power density higher than a power density of the first energy store. The first energy store and the second energy store are designed to supply electrical energy for an electric drive of the vehicle.