An electric power generation system is disclosed that provides an AC electric power output with the target waveform period. A sequence of values is established that each represent electric current of the output for a corresponding one of a number of sequential time segments. A processor executes operating logic to process the values for each respective one of the time segments that includes: determining a difference between a first one of the values and the second one of the values for the respe...

A Partial-Powered Series Hybrid Driving System enables an engine to run with high power and high speed for normal or high load driving. If the load is driven under low-power, low-speed light loading conditions, the present system operates in a series hybrid driving configuration to improve efficiency and reduce pollution by the engine.

A method and apparatus are disclosed for controlling a hybrid energy system including at least an energy source having a maximum energy output and an energy storage device. The method includes determining a first amount of energy indicative of an amount of energy associated with the current operating condition of the energy source and determining a second amount of energy indicative of energy associated with the energy storage device. The method also includes estimating a third amount of energy ...

A system and for generating power associated with a hybrid vehicle or electrically propelled vehicle comprises a mode selector for selecting at least one of an operational mode and a power generation mode. A controller activates one or more switches to disconnect an inverter output from a drive electrical path to a drive motor and to connect the inverter output to a power generation path if the vehicle is in the power generation mode. An inverter inverts a direct voltage signal to an alternating...

A motor (MG1) is connected to a sun gear (31) of a first planetary gear (P1) of a power distribution/unification mechanism (30), an engine (EG1) is connected to a carrier (34) of the first planetary gear (P1) and a ring gear (37) of a second planetary gear (P2), an engine (EG2) is connected to a ring gear (32) of the first planetary gear (P1) and a carrier (39) of the second planetary gear (P2), and a motor (MG2) and a drive shaft (65) are connected to a sun gear (36) of the second planetary gea...

A series-parallel dual power hybrid driving system is characterized by integrating the advantages of a series-connected hybrid driving system and the advantages of a parallel-connected hybrid driving system. It permits an engine to run at high power and high speed for normal or high load driving. Under low-power, low-speed light loading conditions the system operates in a series hybrid driving configuration to avoid low efficiency and high pollution by the engine.

A drive unit is provided including a synchronous machine, a pulse counter unit for detecting a rotor position during the running operation of the synchronous machine, and a control unit. The control unit is constructed such that, with the start of the operation of the synchronous machine, the stator winding of the synchronous machine is energized such that the rotor aligns itself corresponding to a magnetic preference direction parallel to the direction of the magnetic stator field generated by ...

In a power control device for a vehicle, a monitoring control device 2 disposed separately from a power converter 1 judges normality/abnormality of the power converter 1, and sets an abnormality-occurrence electric generation switching signal 4 to ON/OFF, whereby a first electric generation control function corresponding to an output of power element driving signal generating means is forcedly stopped, and also a second electric generation control function based on a diode rectifying mode of a p...

Certain exemplary embodiments can include a system comprising an electric drive system for a machine. The system can include a rectifier adapted to convert AC power from an alternator to DC power. The system can include an inverter adapted to receive DC power from the rectifier and provide power to a traction motor and/or auxiliary devices. Certain exemplary embodiments can include a system and method for dissipating excess energy from a machine.

A drive apparatus for a hybrid vehicle is provided with a first motor generator, a power splitting mechanism portion, and a second motor generator. The first motor generator functions mainly as a generator. The power splitting mechanism portion divides the power generated by the engine into power for the first motor generator and power for driven wheels. The second motor generator has an outside diameter that is smaller than the outside diameter of the first motor generator and is arranged on th...