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.

A vehicle includes a main battery; an auxiliary battery; a plurality of loads connected to the main battery and auxiliary battery; a main controller configured to determine a total amount of available power according to an amount of available power of each of the main battery and the auxiliary battery; and a plurality of load controllers communicatively connected to the main controller and configured to receive the total amount of available power from the main controller and determine whether to operate each of the loads electrically connected to the load controllers based on the received total amount of available power, wherein the plurality of load controllers are configured to control to operate a load requiring an operation among the plurality of loads, when the total amount of available power determined by the main controller is greater than or equal to an amount of power required for the operation of the load requiring the operation.

The disclosure is generally directed to systems and methods for adaptive prediction of electrified vehicle performance including receiving a set of goal parameters identifying a drivers performance requirements, receiving a set of fixed parameters related to course, vehicle and passenger status, receiving past energy consumption data for the electrified vehicle and the driver, generating an adaptive prediction of a future state of charge (SOC) of one or more electricity sources, and providing a dynamic control alteration based on the adaptive prediction, the dynamic control alteration as a function of the set of goal parameters. The adaptive prediction is based on the set of goal parameters, the set of fixed parameters and the past energy consumption data. The adaptive prediction includes updated parameters based on performance of the electrified vehicle.

An operating system for a vehicle having an electric vehicle (EV) drivetrain and a plurality of electrically-powered accessories is described. A controller determines, via a navigation system, a target off-road trail segment, and characterizes the subject vehicle, ambient conditions, and the target off-road trail segment to determine an estimated consumption of electric energy for the vehicle to operate over the target off-road trail segment. The EV drivetrain and the electrically-powered accessories are controlled during operation of the vehicle on the off-road trail segment based upon the estimated consumption of electric energy for the subject vehicle. This is done to minimize a likelihood of a low SOC event for the DC power source for the trail segment and to avoid a low battery state at a location that is distal from a charging station.

A motor controller is described that is coupled to a drive motor and a battery pack of a vehicle. The motor controller is configured to determine a maximum discharge current of the battery pack and a rotational velocity of the drive motor. Based on the determined rotational velocity of the drive motor, the motor controller is configured to identify a curve that defines a relationship between the maximum discharge current of the battery pack and a drive current limit of the motor controller. Based on the identified curve and the determined maximum discharge current of the battery pack, the motor controller is configured to determine the drive current limit of the motor controller. The motor controller is further configured to convert a discharge current from the battery pack to a drive current subject to the determined drive current limit and supply the drive current to the drive motor.

A motor controller is described that is coupled to a drive motor and a battery pack of a vehicle. The motor controller is configured to determine a maximum discharge current of the battery pack and a rotational velocity of the drive motor. Based on the determined rotational velocity of the drive motor, the motor controller is configured to identify a curve that defines a relationship between the maximum discharge current of the battery pack and a drive current limit of the motor controller. Based on the identified curve and the determined maximum discharge current of the battery pack, the motor controller is configured to determine the drive current limit of the motor controller. The motor controller is further configured to convert a discharge current from the battery pack to a drive current subject to the determined drive current limit and supply the drive current to the drive motor.

At least one power line is connected to a battery mounted at a vehicle. Plural ECUs are each connected to the at least one power line. A processor switches one ECU at a time of the plural ECUs from a second state to a first state by sending state switching signals to the plural ECUs. A power line to which plural ECUs are connected is a target power line. On the basis of current values of the target power line measured by a current measurement section when these plural ECUs are switched to the first state one at a time, the processor determines whether or not each ECU is in an abnormal condition.

At least one power line is connected to a battery mounted at a vehicle. Plural ECUs are each connected to the at least one power line. A processor switches one ECU at a time of the plural ECUs from a second state to a first state by sending state switching signals to the plural ECUs. A power line to which plural ECUs are connected is a target power line. On the basis of current values of the target power line measured by a current measurement section when these plural ECUs are switched to the first state one at a time, the processor determines whether or not each ECU is in an abnormal condition.

Method for controlling a battery system that includes a battery with at least one string of battery modules connected in series. Each battery module including a number of battery cells connected in parallel and/or in series. At least a number of battery modules including a power electronics unit connected in series via their respective power electronics unit. The power electronics unit having a DCDC converter operable at least in buck mode, boost mode, and bypass mode. The method includes specifying a DC link voltage for the battery; specifying a first distribution of the set DC link voltage for all modules; determining a state of charge and/or a temperature for all modules; determining a deviation of the state of charge and/or of the temperature of each module from an average value; specifying a second distribution of the set DC link voltage. The set voltage for each module is corrected depending on deviation of state of charge and/or of temperature of each module from the average value.

A controller generates a first command for battery array sensors to sense voltages of battery cell arrays of a traction battery, and generates a second command to sample a value of current through the traction battery at a time following the first command that is defined by durations of analog to digital conversion operations of some of the battery array sensors and an analog to digital conversion operation associated with sampling the value.