B60L58/14

CONTROL SYSTEM AND METHOD FOR CONTROLLING ELECTRICAL POWER CONSUMPTION BY TRACTION MOTOR CAUSED BY WHEEL SLIP

A control system for controlling electrical power consumption from energy storage means by a traction motor of a vehicle caused by a wheel slip event includes: one or more electronic controllers configured to: receive a torque request for the traction motor; determine a current known prevailing speed value of the traction motor; determine a maximum allowable increase in speed of the traction motor of to occur during a latency period associated with the prevailing speed value of the current known speed of the traction motor; determine an electrical power consumption limit in dependence on the torque request, the current known prevailing speed value of the traction motor of the vehicle and the maximum allowable increase in speed of the traction motor; and control torque provision of the traction motor in dependence on the torque request and the electrical power consumption limit.

Lithium plating detection and mitigation in electric vehicle batteries

A vehicle includes a traction battery and a controller. The controller is programmed to, in response to dynamic resistance and capacity of the traction battery for a drive cycle differing from dynamic resistance and capacity of the traction battery for a previous drive cycle by threshold percentages, controlling the traction battery to reduce lithium plating.

Lithium plating detection and mitigation in electric vehicle batteries

A vehicle includes a traction battery and a controller. The controller is programmed to, in response to dynamic resistance and capacity of the traction battery for a drive cycle differing from dynamic resistance and capacity of the traction battery for a previous drive cycle by threshold percentages, controlling the traction battery to reduce lithium plating.

CONTROL METHOD, CONTROL DEVICE, AND NON-TRANSITORY COMPUTER READABLE STORAGE MEDIUM

A control method including, by a computer, acquiring a current SOC value of the battery, acquiring history information related to a past power consumption amount in the vehicle, inputting the history information having been acquired to a learned model, and acquiring prediction information related to the necessary power amount, determining whether the current SOC value is larger than an optimum SOC value determined in advance for suppressing deterioration of the battery, upon determination that the current SOC value is larger than the optimum SOC value, calculating a target value of an SOC value of the battery based on the current SOC value, the optimum SOC value, and the prediction information, and outputting, to the charge and discharge device, control information instructing to discharge power from the battery to an electrical device outside the vehicle until the SOC value of the battery reaches the target value.

CONTROL METHOD, CONTROL DEVICE, AND NON-TRANSITORY COMPUTER READABLE STORAGE MEDIUM

A control method including, by a computer, acquiring a current SOC value of the battery, acquiring history information related to a past power consumption amount in the vehicle, inputting the history information having been acquired to a learned model, and acquiring prediction information related to the necessary power amount, determining whether the current SOC value is larger than an optimum SOC value determined in advance for suppressing deterioration of the battery, upon determination that the current SOC value is larger than the optimum SOC value, calculating a target value of an SOC value of the battery based on the current SOC value, the optimum SOC value, and the prediction information, and outputting, to the charge and discharge device, control information instructing to discharge power from the battery to an electrical device outside the vehicle until the SOC value of the battery reaches the target value.

CURRENT BASED ANTI-CHATTER LATCH
20220332304 · 2022-10-20 ·

A vehicle includes a traction battery, an electric machine, a relay electrically between the traction battery and electric machine, and a controller. When closed, the relay completes an electrical circuit including the traction battery and electric machine. The controller selectively commands the relay to open based on a voltage across a coil of the relay and a current through the coil.

Modular Energy Storage System
20230071975 · 2023-03-09 ·

An energy storage system has at least one string of N modules, with each module including an energy storage device and a switching unit configured to for either serially connect the energy storage device into the string or to provide a short circuit. The energy storage system additionally includes a controller configured to perform (during on-load operation of the ESS) the steps of: changing the state of at least one switching unit of a module; measuring a current and a voltage at the energy storage device of the module, and determining characteristics of the energy storage device on a basis of at least a current through the string and change over time of the voltage measured before and after change of the state of the switching unit.

LONG CYCLE LIFE LITHIUM METAL AND ANODE-FREE CELLS

Methods and systems for providing controlling in a repeatable manner a plurality of anode-free or lithium metal cells in a power-supply system. The cells are connected in series in one or more high energy density hybrid modules connected in parallel. Each high energy density hybrid module includes a corresponding hybrid module controller (HMC) and has a corresponding bi-directional DC-DC-converter, and each cell of the plurality of cells is independently measurable by the HMC. The corresponding bi-directional DC-DC-converter is used to charge and discharge of the plurality of cells in a repeatable manner to be within a selected state of charge (SOC) range that corresponds to a defined cycle life and energy density requirement.

METHOD FOR DIAGNOSING FAILURE OF CURRENT BREAKING DEVICE AND ENERGY STORAGE APPARATUS
20230152376 · 2023-05-18 ·

A method for diagnosing failure of a current breaking device 21A included in a power supply system 12 of a vehicle 1 includes: a supply step of supplying power to a first electric load 11 and a first energy storage apparatus 13 by a power supply apparatus 14; a command step of commanding the current breaking device 21A to perform cutoff while power is supplied from the power supply apparatus 14 to the first electric load 11 and the first energy storage apparatus 13; and a determination step of measuring a charge current of a secondary battery 20A by a current sensor 21B while the cutoff is commanded to the current breaking device 21A, and determining presence or absence of failure of the current breaking device 21A based on a measured current value.

ENERGY MANAGEMENT SYSTEM FOR AN ENERGY STORAGE SYSTEM OF A VEHICLE

The present disclosure relates to an energy management system for an energy storage system of a vehicle, a vehicle comprising such an energy management system, an energy management method for an energy storage system of a vehicle and a computer program element for an energy management system of a vehicle.

The energy management system comprises a propulsion sensor unit, a heat sensor unit, an energy storage sensor unit, a navigation unit and a control unit. The propulsion sensor unit is configured to monitor at least one propulsion parameter of the vehicle. The heat sensor unit is configured to monitor at least one thermal parameter of the vehicle. The energy storage sensor unit is configured to monitor at least one state parameter of the energy storage system, wherein the state parameter comprises at least a current capacity of the energy storage system. The control unit is configured to receive navigation data based on a calculation of a route from a current position to a destination of the vehicle by the navigation unit. The control unit is configured to estimate an upcoming energy consumption based on the propulsion parameter, the thermal parameter and/or the navigation data. The control unit is further configured to adjust at least one of the thermal parameter and the propulsion parameter of the vehicle based on the current capacity of the energy storage system to reduce the upcoming energy consumption and/or a trip time of the vehicle to the destination.