The invention relates to a method for managing a battery comprising a plurality of battery cells, wherein a maximum value of a current that can be delivered by the battery is adjusted on the basis of a frequency distribution (44) of a root mean square current delivered by the battery. The invention further relates to a battery management system and a computer program for carrying out said method as well as to a motor vehicle comprising a battery which includes a battery management system of said type.

The rechargeable battery arrangement includes a first plurality of series-connected first charge storage cells, a second plurality of series-connected second charge storage cells, and a third plurality of series-connected third charge storage cells. The arrangement further includes a first converter having a first connection pair is connected to the third plurality of series-connected third charge storage cells, and a second connection pair, connected in series with the first plurality of series-connected first charge storage cells. A series connection consisting of the first plurality of first charge storage cells and the first converter is connected in parallel to the second plurality of second charge storage cells. Moreover, the first converter is configured to convert at least one of a voltage and a current supplied by the third plurality of series-connected third charge storage cells, and to output said voltage and/or current at the second connection pair. In addition, a lowest potential of the second plurality of series-connected second charge storage cells forms a first connection of the accumulator arrangement, and a highest potential of the second plurality of series-connected second charge storage cells forms a second connection of the accumulator arrangement.

When such an abnormality that a battery voltage system voltage is brought into an overvoltage state during regenerative control of a motor occurs, a booster converter is shut down, a system main relay is brought into a non-arc state and turned off. Then, an engine is started when an operation of the engine is stopped. The booster converter is used to determine turning-off of the system main relay, and a battery-less travel is started thereafter. In this way, inconvenience that possibly occurs by starting the battery-less travel at a time when abnormality of the system main relay being stuck to be on occurs can be avoided.

A motor driving control apparatus in the embodiment includes: a first controller configured to control powering and regeneration of a motor; a second controller configured to control the first controller; and assistant circuitry configured to activate the second controller in a stop state, when a counter electromotive force caused by the motor, which is rotated without control by the first controller, satisfies a predetermined condition, before a power-on instruction for the motor driving control apparatus is made or in a state where the power-on instruction for the motor driving control apparatus is not made.

The invention relates to a method for managing a battery comprising a plurality of battery cells, wherein a maximum value of a current that can be delivered by the battery is adjusted on the basis of a frequency distribution (44) of a root mean square current delivered by the battery. The invention further relates to a battery management system and a computer program for carrying out said method as well as to a motor vehicle comprising a battery which includes a battery management system of said type.

A system for providing deceleration in a hybrid vehicle having a hydraulic braking system and a regenerative braking system. The system includes a hydraulic braking sensor configured to determine a status of the hydraulic braking system. The system also includes a brake pedal unit configured to determine brake pedal data. The system also includes a battery configured to store energy generated by the regenerative braking system. The system also includes a processor configured to determine whether the hydraulic braking system is compromised. The processor is also configured to detect an emergency braking situation based on the brake pedal data. The processor is also configured to increase engine speed of the engine to induce engine braking, and increase the maximum charge limit of the battery to increase a regenerative braking capacity of the regenerative braking system when the hydraulic braking system is compromised and the emergency braking situation is detected.

A construction machine is disclosed having a body, one or more movement elements, and a control panel comprising a propulsion controller operable between a lower propulsion controller limit and an upper propulsion controller limit. The construction machine further comprises: a propulsion electric motor adapted to drive the one or more movement elements, one or more batteries adapted to power the propulsion electric motor, a control circuit adapted to receive a propulsion controller input indicative of a state of the propulsion controller between the lower propulsion controller limit and the upper propulsion controller limit, and to operate the propulsion electric motor in accordance with a propulsion variable based on the propulsion controller input. While operating the propulsion electric motor in accordance with the propulsion variable, the control circuit is further adapted to: receive a propulsion current signal indicative of an amount of current drawn by the propulsion electric motor, and in accordance with the propulsion current signal satisfying propulsion reduction criteria, reduce the propulsion variable by a propulsion reduction amount such that the propulsion variable is below a maximum propulsion variable.

An automobile having: a frame provided with a plurality of metal elements interconnected with one another; at least one drive wheel; at least one electric motor connected to the drive wheel; an electronic power converter which controls the electric motor; and a dissipator device, which is connected to the electronic power converter, is configured to dissipate electrical energy and has at least one electrical resistance which is configured to generate heat through Joule effect and is thermally coupled to at least one corresponding metal element of the frame to transmit heat, through conduction, to the corresponding metal element.

Main figure: FIG. 3

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.