The disclosure provides a method of operating a system supported by an electric vehicle (EV). The method includes receiving input data from the input. When the input data is indicative of the EV being in a driving status, the method includes executing a first mode of operation causing a high voltage battery supported by the EV to supply power to one or more low voltage loads and to a motor. When the input data is indicative of the EV being connected to an alternating voltage source, the method includes executing a second mode of operation causing the motor and an inverter to behave as a two-phased interleaved PFC circuit. When the input data is indicative of the EV being connected to a direct voltage source, the method includes executing a third mode of operation causing the motor and the inverter to behave as a two-phased interleaved boost converter circuit.

Systems and methods for commanding an electric drive system for an electric or hybrid vehicle are described. In one example, the drive system is commanded by a controller that supplies a pulsed torque command that varies in magnitude as a function of time when a driver of a vehicle requests a constant driver demand torque.

The invention relates to a work machine comprising a frame, a propulsion structure, a load-handling apparatus, an electrical energy storage unit (10), a device (16) for evaluating state of charge configured to determine a value V which is representative of the state of charge of said electrical energy storage unit (10), and a control unit (14) which is configured to:

compare the value V with a threshold V.sub.1;

activate a mode (400) in which movement and handling operations are prohibited when the value V is lower than or equal to the threshold V.sub.1; and

activate a rescue mode (500) in which the operation of the propulsion structure is authorized when an authorization signal is sent by an authentication device (17) and when the mode in which movement is prohibited is active.

Systems and methods for commanding an electric drive system for an electric or hybrid vehicle are described. In one example, the drive system is commanded by a controller that supplies a pulsed torque command that varies in frequency as a function of time when a driver of a vehicle requests a constant driver demand torque.

A control apparatus includes an energy storage device, an inverter connected to the energy storage device, and a rotating electrical machine equipped with armature windings connected to the inverter. The control apparatus includes a switching power supply equipped with a switch and works to control a switching operation thereof to output a load current. The control apparatus is configured to use the load current to perform a plurality of control functions to control an operation of the machine. The apparatus also includes a restriction unit which performs a restriction task to restrict at least one of the control functions in response to a determination that an external charging control mode is entered which electrically charges the energy storage device using an external power supply or that an external power feeding control mode is entered which feeds electrical energy from the energy storage device to an external power receiving target.

Methods and systems are provided for a hybrid transmission. In one example, a method for a hybrid transmission, comprising, adjusting voltage on an inverter of an electric motor prior to disconnecting or connecting a battery contact in response to a transition between a first mode and a second mode. In the first mode, a battery and at least the electric motor are used to power rotation of a transmission output shaft. In the second mode, an engine and at least the electric motor are used to power rotation of the transmission output shaft. In one example, the adjusting is initiated in response to a request to transition between the first mode and the second mode. In one example, the method includes controlling current to the battery to within a non-zero threshold of zero in response to the request to transition the first mode to the second mode.

Described herein is an assistance system for an electric personal-mobility vehicle (1a) for a person with reduced mobility. The assistance system comprises sensors (50a) configured for supplying data on the current state of the electric vehicle (1a) and a processing system (60, 2, 3). During a path training step, the processing system monitors a control signal (S1; Da, Db) supplied by a user interface (10a) of the electric vehicle (1a) and drives at least one actuator (30) of the electric vehicle (1a) as a function of the control signal (S1; Da, Db). Moreover, the processing system acquires a plurality of positions of the electric vehicle (1a), processes such position data to generate data that define at least one allowed zone, and stores the at least one allowed zone in a memory (62). Instead, during a normal operating step, the processing system determines the current state of the electric vehicle (1a) as a function of the data supplied by the sensors (50a) and monitors the control signal (S1; Da, Db) supplied by the user interface (10a). On the basis of these data, the processing system estimates a future state of the electric vehicle (1a) and determines whether the future position of the vehicle is within at least one allowed zone stored in the memory (62). In the case where the future position is within at least one allowed zone, the processing system drives the at least one actuator (30) of the electric vehicle (1a) as a function of the control signal (S1; Da, Db). Instead, in the case where the future position is not within at least one allowed zone, the processing system may control the actuators for keeping the electric vehicle (1a) within at least one allowed zone and/or generate an alert signal.

A method for controlling an electric vehicle battery is provided. The electric vehicle includes a plurality of wheels, a driving motor for supplying power to the plurality of wheels, and a controller for controlling power supply to the driving motor and/or charging by the driving motor. The method includes selecting, by the controller, a battery among a first battery and a second battery according to revolutions per minute (RPM) and a power of the driving power. The method also includes controlling, by the controller the power supply and/or the charging by using the selected battery.

The present invention relates to a method (100) for controlling one or two electrically driven axles (1a, 1b) of a vehicle with electric motors (EM1, EM2), each connected to an output (2, 2a, 2b) via a respective power transmission path (3, 4), comprising the following steps: determining (101a) values for a speed and a torque applied to at least one mechanical component (5) of the power transmission paths (3, 4) and/or the electric motors (EM1, EM2); determining a value of a damage condition of the at least one mechanical component (5) resulting from damage inputs over a predefined period of time; and controlling (107) the electrically driven axles (1a, 1b) taking into account the damage condition of the at least one mechanical component (5).

The battery electric vehicle selects and executes a charge mode from a first charge mode in which power supplied from an external power source device to a first neutral point of a first motor is supplied to a power storage device via the first motor and a first inverter, and a second charge mode in which power supplied from the external power source device to a second neutral point of a second motor is supplied to the power storage device via the second motor and a second inverter, based on at least one of temperatures of the first and second motors and temperatures of the first and second inverters.