A method for operating a charging station, including establishing a communication link between the charging station and an electric vehicle; checking, via the communication link, whether a software stored on a processing unit of the electric vehicle has to be updated; and transmitting, as a function of the check, update data for updating the software via the communication link to the electric vehicle with the aid of the charging station so that the software may be updated based on the update data. A charging station, an electric vehicle, a method for operating an electric vehicle, and a computer program, are also described.

The disclosure is directed to methods and systems for provisioning mobile electric vehicles with various operational settings data transmitted over the air. A vehicle or its components may operate according to operational settings corresponding to operational settings data included in the vehicle components. A server that is remote to the vehicle may comprise operational settings data and may transmit operational settings data to the vehicle. The server may transmit operational settings data automatically, such as on a periodic basis, in response to a request, such as from a user or from a vehicle component or anytime new or updated operational settings data are available for the vehicle or its components.

Methods and systems are described for conserving energy used by an energy consuming device. In certain embodiments, an energy conservation system can be configured to deliver energy to the energy consuming device for a period, followed by a period where energy delivery is dampened and/or cut. By cycling the delivery of energy in this fashion, the energy conservation can achieve a pulsed efficiency.

A power system has a first converter; a second converter; a first controller for generating a first command and a second command, controlling the first converter on the basis of the first command, and transmitting the second command to a second controller; and the second controller for controlling the second converter on the basis of the second command. The first controller adjusts the first command to cancel at least one of shortage and excess of second current by first current. The second controller controls the second converter on the basis of the second command when the first command is smaller than first upper limit. The second controller controls the second converter on the basis of second upper limit when the first command reaches the first upper limit.

The present invention relates to an electrically driven single-axle tractor for coupling with, and powering of, various pieces of equipment, comprising: a frame; a drive axle, connected to the tractor frame, provided with one pair of wheels; a primary electric motor coupled to the drive axle; at least a secondary electric motor coupled to an equipment drive shaft for releasable coupling with a piece of equipment; and, at least one electrical energy source, as power supply of the primary and secondary electric motor. The invention also provides an assembly of such a tractor and a piece of equipment as well as a method for driving such a tractor.

An object of the present invention is to provide a hybrid working vehicle that enables enhancing efficiency of an engine. A hybrid control device (35) according to the present invention includes a required power arithmetic unit (35A) that operates power required for operation of the vehicle, specified rotational speed setting equipment (35B1) that sets first rotational speed and second rotational speed which specify an operating range of the engine (12) according to required power operated by the required power arithmetic unit (35A), variable speed control equipment (35B2) that variably controls rotational speed of the engine (12) according to required power operated by the required power arithmetic unit (35A1) and electrical storage device electric power control equipment (35C1) that executes control over supplying electric power according to a deficit of power of the engine (12) in an electrical storage device (29) for required power operated by the required power arithmetic unit (35A) to an electric motor (26) when rotational speed of the engine (12) variably controlled by the variable speed control equipment (35B2) is first rotational speed.

A hybrid vehicle comprises an internal combustion engine, a transmission, at least one driving wheel rotationally connected to the transmission, and a coupling arrangement arranged between the internal combustion engine and the transmission, and controllable between a first state in which a drive shaft of the engine is rotationally connected to the transmission and a second state in which the drive shaft of the engine is rotationally disconnected from the transmission. The vehicle further comprises an energy recovery device connected to the coupling arrangement via a flexible driving member for allowing recovery and storage of energy recovered from deceleration of the at least one driving wheel. The vehicle may further comprise a sensor for sensing a parameter value indicative of desired deceleration, and a control unit for controlling the coupling arrangement to the second state when the sensed parameter value indicates desired deceleration of the hybrid vehicle.

A charge/discharge system includes first and second electric chargers that supplies electric power to a motor generator and charges electric power generated by the motor generator, an electric power converter that complementarily performs charging/discharging between the first and second electric chargers, and a controller. The controller controls the electric power converter based on charging conditions of the first and second electric chargers such that electric power charged in the first electric charger is charged in the second electric charger, or electric power charged in the second electric charger is charged in the first electric charger.

A heterogeneous energy storage device and a method for controlling a heterogeneous energy storage device are provided. In one implementation, a heterogeneous energy storage device is provided. The heterogeneous energy storage device includes a first energy storage device, a second energy storage device and a capacitive device. The first energy storage device has a first energy capacity and a first power to energy ratio (P/E). The second energy storage device has a second total energy capacity and a second P/E ratio different from the first P/E ratio. The capacitive device is coupled in series with the first energy storage device, wherein the second energy storage device is coupled in parallel with the series combination of the capacitive device and the first energy storage device. In another implementation, a method of controlling a heterogeneous energy storage device including a first energy storage device and a second energy storage device is provided. In this implementation, the method includes: providing a capacitive device in series with the first energy storage; coupling the second energy storage device in parallel with the series combination of capacitive device and the first energy storage device, wherein the capacitive device provides DC decoupling between the first energy storage device and the second energy storage device.

A hybrid energy storage module (HESM) configured to be used on an aircraft to provide electrical energy may include a battery and an ultracapacitor each configured to receive the electrical energy, store the electrical energy, and discharge the electrical energy, a power bus in electronic communication with the battery and the ultracapacitor, and a controller coupled to the battery and the ultracapacitor and configured to control charging and discharging of the battery and of the ultracapacitor such that a measured voltage of the power bus is adjusted based upon at least one of a battery state of charge (SOC) or an ultracapacitor SOC.