Circuitry for balancing cells in a battery pack, the circuitry comprising: cell balancing circuitry configured to transfer energy between cells of the battery pack in synchronisation with a clock signal; and control circuitry configured to control a parameter of the clock signal based on a monitored parameter or information associated with the battery pack.

Balancing circuitry for balancing cells in first and second modules of a battery pack, wherein the first module comprises a first plurality of cells and the second module comprises a second plurality of cells, the balancing circuitry comprising: first cell balancing circuitry operative to balance the first plurality of cells of the first module; and second cell balancing circuitry operative to balance the second plurality of cells of the second module, wherein the second cell balancing circuitry is further operative to balance at least one cell of the first plurality of cells of the first module with at least one cell of the second plurality of cells of the second module.

A battery management device that manages a battery includes: multiple voltage detection circuits each connected to a corresponding one of a plurality of battery cells; and multiple discharge circuits each connected to a corresponding one of the battery cells. The battery management device causes the battery cell whose voltage difference from a reference voltage is equal to or greater than a predetermined first threshold and less than a second threshold that is greater than the first threshold to be discharged while a system of the vehicle is stopped, and causes the battery cell whose voltage difference is equal to or greater than the second threshold to be discharged at least either while the system is stopped or while the system is in operation.

A battery management device that manages a battery includes: multiple voltage detection circuits each connected to a corresponding one of a plurality of battery cells; and multiple discharge circuits each connected to a corresponding one of the battery cells. The battery management device causes the battery cell whose voltage difference from a reference voltage is equal to or greater than a predetermined first threshold and less than a second threshold that is greater than the first threshold to be discharged while a system of the vehicle is stopped, and causes the battery cell whose voltage difference is equal to or greater than the second threshold to be discharged at least either while the system is stopped or while the system is in operation.

A cell equalization system includes: a battery including a plurality of chargeable cells connected in series and mounted on a vehicle; a battery ECU configured to control the battery; an equalization circuit configured to perform equalization of remaining capacity variation of the plurality of cells; and an equalization control unit configured to control the equalization circuit. The battery ECU is configured to calculate the remaining capacity variation at startup of ECU in which the battery ECU changes from a sleep state to a startup state. The cell equalization system is configured to execute first equalization processing for performing the equalization when the battery ECU is in the startup state, and second equalization processing for performing the equalization when the battery ECU is in the sleep state.

A cell equalization system includes: a battery including a plurality of chargeable cells connected in series and mounted on a vehicle; a battery ECU configured to control the battery; an equalization circuit configured to perform equalization of remaining capacity variation of the plurality of cells; and an equalization control unit configured to control the equalization circuit. The battery ECU is configured to calculate the remaining capacity variation at startup of ECU in which the battery ECU changes from a sleep state to a startup state. The cell equalization system is configured to execute first equalization processing for performing the equalization when the battery ECU is in the startup state, and second equalization processing for performing the equalization when the battery ECU is in the sleep state.

One embodiment relates to a hybrid vehicle drive system for a vehicle including a first prime mover, a first prime mover driven transmission, a rechargeable power source, and a PTO. The hybrid vehicle drive system can include a control system for reducing or eliminating regenerative braking during a traction control or anti-lock braking event.

One embodiment relates to a hybrid vehicle drive system for a vehicle including a first prime mover, a first prime mover driven transmission, a rechargeable power source, and a PTO. The hybrid vehicle drive system can include a control system for reducing or eliminating regenerative braking during a traction control or anti-lock braking event.

In one embodiment, a system comprising a battery set comprising plural battery cells configured in a circuit; and a control system configured to switch current flow in the circuit from bi-directional flow to and from the battery set to mono-directional flow to or from the battery set based on an over-charging or over-discharging condition.

The invention relates to a method for reducing the overall power consumption of a parked vehicle, whereby said vehicle comprises a DC power network including two batteries connected in series and an equalizer circuit, whereby the equalizer circuit includes a DC/DC converter for converting an input voltage corresponding to the sum of the voltages of the two batteries into an output voltage to be applied to a first battery of the two batteries. The method consists in i) activating the DC/DC converter only when the State of Charge (SoC) of the first battery reaches a first level below the State of Charge (SoC) of the second battery; and u) keeping the DC/DC converter active until the State of Charge (SoC) of the first battery reaches a second level above the State of Charge (SoC) of the second battery.