A system and method for an electric vehicle (EV) battery resource sharing system is provided. One embodiment has a plurality of battery modules and a plurality of battery exchange facilities. Each different EV contains a battery swap cabinet that is configured to releasably secure at least one of the plurality of battery modules within the EV. A user of an EV, while at the battery exchange facility, exchanges a discharged first battery module for a second battery module that has been recharged. The battery exchange facility releases the recharged second battery module to the user after a payment has been made by the user. The battery exchange facility subsequently recharges the discharged first battery module after the user has placed the discharged first battery module into the battery exchange facility.

A portable energy-saving and environment-friendly electric vehicle is light in weight, small in volume, convenient in electricity charging, and can be disassembled for portability in a backpack. The backpack is further furnished with a crank-handle generator to enable manpower electricity generation and working out simultaneously. This energy-saving and environment-friendly electric vehicle is mainly comprised of two adjustable skateboards and a support rod for adjusting speed and connecting a battery set. The battery set can be conveniently replaced roadside or at other locations. In a situation of power loss, manpower can be used to charge the battery set. Thus, the situation of power loss fully disabling the electric vehicle can be met. In addition, the battery set associated with the generator is reliable for charging mobile phones and computers.

A portable energy-saving and environment-friendly electric vehicle is light in weight, small in volume, convenient in electricity charging, and can be disassembled for portability in a backpack. The backpack is further furnished with a crank-handle generator to enable manpower electricity generation and working out simultaneously. This energy-saving and environment-friendly electric vehicle is mainly comprised of two adjustable skateboards and a support rod for adjusting speed and connecting a battery set. The battery set can be conveniently replaced roadside or at other locations. In a situation of power loss, manpower can be used to charge the battery set. Thus, the situation of power loss fully disabling the electric vehicle can be met. In addition, the battery set associated with the generator is reliable for charging mobile phones and computers.

A system and method for an electric vehicle (EV) battery resource sharing system is provided. One embodiment has a plurality of battery modules and a plurality of battery exchange facilities. Each different EV contains a battery swap cabinet that is configured to releasably secure at least one of the plurality of battery modules within the EV. A user of an EV, while at the battery exchange facility, exchanges a discharged first battery module for a second battery module that has been recharged. The battery exchange facility releases the recharged second battery module to the user after a payment has been made by the user. The battery exchange facility subsequently recharges the discharged first battery module after the user has placed the discharged first battery module into the battery exchange facility.

A system and method for an electric vehicle (EV) battery resource sharing system is provided. One embodiment has a plurality of battery modules and a plurality of battery exchange facilities. Each different EV contains a battery swap cabinet that is configured to releasably secure at least one of the plurality of battery modules within the EV. A user of an EV, while at the battery exchange facility, exchanges a discharged first battery module for a second battery module that has been recharged. The battery exchange facility releases the recharged second battery module to the user after a payment has been made by the user. The battery exchange facility subsequently recharges the discharged first battery module after the user has placed the discharged first battery module into the battery exchange facility.

The present invention relates to an energy storage module system and, more specifically, to a hybrid energy storage module system selectively using, according to the amount of power required in a load, a lithium battery and a lead storage battery by mutually supplementing the lithium battery and the lead storage battery. According to the present invention, the hybrid energy storage module system is an energy storage module system for supplying power necessary for the driving of a load and comprises an energy storage device, a first sensing unit and a second sensing unit, and a controller. The energy storage device includes at least one lithium battery module and at least one lead storage battery module. In addition, the energy storage device includes a switching network configured so as to connect the lithium battery module and the lead storage battery module in different arrangement modes. The energy storage device is connected to both ends of a load and supplies power. The switching network can include a path for connecting the lithium battery module and the lead storage battery module, and a plurality of switches provided on the path. The first sensing unit is configured so as to measure the temperature and the voltage of the lithium battery modules, and the second sensing unit is configured so as to measure the temperature and the voltage of the lead storage battery module. The controller controls the switching network in order to change the arrangement modes of the lithium battery module and the lead storage battery module of the energy storage device.

An electric bike is described and includes an air speed sensor to sense air speed at the bike, an electric motor to impart motive force to the bike, and a controller operatively connected to the motor, the controller to control the electric motor using the air speed sensed by the air speed sensor. The controller includes a set electric-motor parameter for the output power of the motor. The electric-motor parameter can be bike speed. The controller can also use ground inclination to determine the power to be output by the motor to assist in powering the bike. The controller can use ground inclination to determine the power to be output by the motor to charge a battery in the bike. The controller can set the power of motor assist to be greater in a greater headwind than in a lighter headwind. The controller uses rider weight and rider height as parameters for controlling the motor.

A wireless sensor network sensor network charging method for multi-charge nodes, including the following steps: (1) establishing a WSNs model; (2) dividing field ranges of charging trolleys; and (3) charging the charging trolleys: (a) initializing: l=0 and j=0, wherein l is the total number of received alarm nodes, and j is the serial number of an alarmed node; (b) receiving an alarm signal, updating values of l and j, generating a shortest charging path s.sub.l, and computing an energy discriminate vector; (c) if a vector element satisfies Q.sub.lj≦5% B and j=1, 2, . . . , l, then executing a charging task on l alarm nodes according to the shortest charging path s.sub.l corresponded thereby, otherwise, returning to continuously update the values of l and j; (d) executing the charging task; and (e) determining whether the charging trolleys are required to go back to a parking lot for recharging, enabling the charging trolleys to go back to the parking lot for recharging if yes, and otherwise, returning to continuously update the values of l and j and the vector element Q.sub.lj.

Systems, devices, and methods for a transformer including: a first drive winding (206) wound on a first core; a second drive winding wound on a second core; a sense winding wound across the first and second cores; and a compensation winding wound across the first and second cores; where one or more utility lines are threaded through a middle of the first and second cores, a common mode current in the one or more utility lines causes one or more pulses to appear on the sense winding, a current on the compensation winding is adjusted until the one or more pulses on the sense winding are cancelled out, and the common mode current on the one or more utility lines is the adjusted current on the compensation winding multiplied by a turn ratio between the compensation winding and the sense winding.

A system for recharging power storage devices on a watercraft is disclosed herein. The system for recharging power storage devices on a watercraft includes a shell, at least one linear-channel fixedly mounted inside the shell, a turbine having at least one rotor and at least one shaft connected to the rotor, and a generator. The system for recharging power storage devices on a watercraft is useful for converting the rotational energy provided by the water flowing past the turbine rotor into electrical energy to charge a power storage device on a watercraft.