Abstract: There is provided a method of using an electric machine. To generate torque, electricity is provided to stator coils on a plurality of salient poles of a stator arranged around a rotor having a plurality of salient poles to pull the rotor salient poles in the circumferential direction. To generate electricity, the method comprises rotating the rotor and generating a magnetic field on a magnetizing member. The magnetizing member is arranged coaxially with the rotor and offset from the rotor in the axial direction. The method further comprise conducting the generated magnetic field to the salient poles of the rotating rotor to induce alternating magnetic flux on the stator coils, and recovering electricity generated by the induced alternating magnetic flux from the stator coils. The generated magnetic field does not change its configuration when the rotor rotates except for distances between the closest pairs of rotor salient poles and stator salient poles.

Abstract: A hybrid electric vehicle and method for controlling a hybrid electric vehicle are disclosed. The method may include determining a vehicle operating condition of a hybrid electric vehicle, determining at least a phase of a primary alternating current, determining at least a phase of a driving current to be supplied to a motor of the hybrid electric vehicle on the basis of said operating condition, determining whether or not a phase of said primary alternating current is the same as a phase of a driving current, and supplying at least part of said primary alternating current from a generator to the motor via a second feed circuit when the phase of said primary alternating current is the same as the phase of said driving current.

Abstract: A control system and method for a hybrid electric vehicle. One example control system includes a current calculating module to calculate a current, the current being at least one of a current to drive a motor of the vehicle and a current generated by the motor, and a feed controller to selectively implement a first mode when the calculated current is below a predetermined current value and to selectively implement a second mode when the calculated current is more than the predetermined current value, wherein either the first feed circuit or the second feed circuit is used in the first mode and both the first feed circuit and the second feed circuit are used in the second mode.

Abstract: A hybrid electric vehicle includes, in one example, a motor-generator driven by an engine to generate alternating current, wherein the motor-generator is further configured to start the engine, a motor for driving the vehicle, a diode rectifier to rectify alternating current generated by the motor-generator, an inverter connected to a feed circuit between the diode rectifier and the motor to convert direct current in the feed circuit into alternating current, a power supply connected to a line connecting the diode rectifier with the inverter, a first feed circuit to supply current to the motor to drive the vehicle through the diode rectifier and the inverter in series a second feed circuit to connect the motor-generator with the power supply while bypassing at least the diode rectifier, and an alternating current converter provided in the second feed circuit.

Abstract: There is provided a method of controlling a power-train of a hybrid electric vehicle comprising an internal combustion engine, a first electric machine directly driven by the internal combustion engine for generating electricity, and a second electric machine driven at least partly with the electricity for driving the vehicle wheel. The method comprises adjusting the speed and adjusting the torque of the internal combustion engine, while substantially maintaining the intake manifold pressure, in response to a change of the desired electricity from the first electric machine. According to the method, the higher engine efficiency can be maintained, because the engine intake manifold pressure is maintained during adjusting the engine speed and torque. The engine speed may be adjusted corresponding to a speed of the first electric machine with higher efficiency and the desired output electricity. Therefore, both the engine and the first electric machine may achieve the respective higher efficiencies.

Abstract: Disclosed is a hybrid vehicle control system, which comprises a current conversion device for changing an amplitude or a frequency of an alternating current generated by a generator, unit for determining a required output of a vehicle-driving motor in conformity to a required vehicle-driving force, unit for determining a current waveform to be supplied to the vehicle-driving motor, in conformity to the required output of the vehicle-driving motor, and controllably determine a strategy of how to supply an AC electric power, and a bypass line adapted to bypass the current conversion device. When there is a waveform difference between a current waveform required for the vehicle-driving motor and a current waveform output from the generator, an AC electric power is supply to the vehicle-driving motor after eliminating the waveform difference through the current conversion device.

Abstract: A control system for a hybrid vehicle, which comprises member for determining a required output of a vehicle-driving motor in conformity to a required vehicle power, a member for determining a required output of a generator in conformity to the required output of the vehicle-driving motor, a member for determining a required output of an engine in conformity to the required output of the generator, a battery for storing an electric energy generated by the generator and charged thereinto through an inverter, and discharging the stored electric energy to the vehicle-driving motor through the inverter, and a member for, in response to occurrence of a waveform difference between a required current waveform of the vehicle-driving motor and an output current waveform of the generator due to a change in the required output of the vehicle-driving motor, to perform a waveform-difference correction operation in a direction for eliminating the waveform difference.

Abstract: A hybrid vehicle includes: first and second rotary electric machines; a matrix converter connecting the first and second rotary electric machines to each other to provide AC to AC power conversion between both the rotary electric machines; a battery connected to an electrical path branched off between the matrix converter and the second rotary electric motor; an inverter interposed among the battery, the matrix converter and the second rotary electric machine to convert AC power to DC power and vice versa; and a controller. The controller activates the first rotary electric machine with power fed from the battery and restrains the change in torque output of the second rotary electric machine at the activation of the first rotary electric machine.

Abstract: Disclosed is a hybrid system of vehicle capable of accurately generating an engine output in conformity to a required vehicle driving power and suppressing an electric power loss even when a battery is used for correcting electric power to prevent occurrence of overshoot or undershoot. The hybrid system of vehicle is designed to drive a generator by an engine and supply an electric power generated by the generator directly to a wheel-driving electric motor so as to drive the motor. The hybrid system of vehicle comprises required motor output setting means for setting a required output of the motor depending on a required vehicle driving power, required generator output setting means for setting a required output of the generator depending on the required motor output set by the required motor output setting means, and engine output setting means for setting an output of the engine depending on the required generator output set by the required generator output setting means.

Abstract: There is provided a method of controlling a power-train of a hybrid electric vehicle comprising an internal combustion engine, a first electric machine directly driven by the internal combustion engine for generating electricity, and a second electric machine driven at least partly with the electricity for driving the vehicle wheel. The method comprises adjusting the speed and adjusting the torque of the internal combustion engine, while substantially maintaining the intake manifold pressure, in response to a change of the desired electricity from the first electric machine. According to the method, the higher engine efficiency can be maintained, because the engine intake manifold pressure is maintained during adjusting the engine speed and torque. The engine speed may be adjusted corresponding to a speed of the first electric machine with higher efficiency and the desired output electricity. Therefore, both the engine and the first electric machine may achieve the respective higher efficiencies.

Abstract: An internal combustion engine combusts a first fuel or a second fuel. A method for controlling the engine comprises supplying first fuel to at least one combustion chambers of the internal combustion engine, stopping the supply of the first fuel to the combustion chamber in response to an engine operating condition, and fueling with the second fuel to the at least one combustion chamber after a predetermined period, so as to maintain an engine speed within a predetermined range.

Abstract: There is provided a method of using an electric machine. To generate torque, electricity is provided to stator coils on a plurality of salient poles of a stator arranged around a rotor having a plurality of salient poles to pull the rotor salient poles in the circumferential direction. To generate electricity, the method comprises rotating the rotor and generating a magnetic field on a magnetizing member. The magnetizing member is arranged coaxially with the rotor and offset from the rotor in the axial direction. The method further comprise conducting the generated magnetic field to the salient poles of the rotating rotor to induce alternating magnetic flux on the stator coils, and recovering electricity generated by the induced alternating magnetic flux from the stator coils. The generated magnetic field does not change its configuration when the rotor rotates except for distances between the closest pairs of rotor salient poles and stator salient poles.

Abstract: There is described a method for controlling a hybrid electric vehicle power-train comprising an internal combustion engine, an electric machine and a transmission, the transmission having a gear set with three rotational elements rotationally coupled to the internal combustion engine, the electric machine and the vehicle driving wheel, a rotational speed of any one of the three rotational elements being mechanically defined by the rotational velocity of the remainder of the three rotational elements. The method comprises adjusting the torque of the electric machine to change the speed of the internal combustion engine and to control the velocity of the electric machine above a predetermined value, and decreasing the torque of the internal combustion engine while substantially maintaining the intake manifold pressure of the internal combustion engine in response to a decrease in the demanded engine output.

Abstract: There is described a method for controlling a hybrid electric vehicle power-train comprising an internal combustion engine, an electric machine and a transmission, the transmission having a gear set with three rotational elements rotationally coupled to the internal combustion engine, the electric machine and the vehicle driving wheel, a rotational speed of any one of the three rotational elements being mechanically defined by the rotational velocity of the remainder of the three rotational elements. The method comprises adjusting the torque of the electric machine to change the speed of the internal combustion engine and to control the velocity of the electric machine above a predetermined value, and decreasing the torque of the internal combustion engine while substantially maintaining the intake manifold pressure of the internal combustion engine in response to a decrease in the demanded engine output.

Abstract: An internal combustion engine combusts a first fuel or a second fuel. A method for controlling the engine comprises supplying first fuel to at least one combustion chambers of the internal combustion engine, stopping the supply of the first fuel to the combustion chamber in response to an engine operating condition, and fueling with the second fuel to the at least one combustion chamber after a predetermined period, so as to maintain an engine speed within a predetermined range.

Abstract: An automotive driving control system comprises a stepless transmission provided between the engine and the driving wheels, a transmission controller for controlling the transmission ratio of the stepless transmission, a throttle valve driver for driving the throttle valve of the engine, and a controller for controlling the transmission controller and the throttle valve driver. The controller controls the transmission controller and the throttle valve driver according to the amount of depression of the accelerator pedal.

Abstract: An automotive driving control system comprises a stepless transmission provided between the engine and the driving wheels, a transmission control for controlling the transmission ratio of the stepless transmission, a throttle valve driver for driving the throttle valve of the engine, an accelerator position sensor for detecting the amount of depression of the accelerator pedal, and a control for controlling the transmission control and the throttle valve driver. The control controls the transmission control and the throttle valve driver to respectively control the opening degree of the throttle valve and the transmission ratio of the stepless transmission so that engine output corresponding to the amount of depression of the accelerator pedal is obtained. There is further provided an acceleration requirement detector for detecting an acceleration requirement by way of change in the amount of depression of the accelerator pedal, the rate of change of the same (i.e.

Abstract: An automotive driving control system comprises a stepless transmission provided between the engine and the driving wheels, a transmission controller for controlling the transmission ratio of the stepless transmission, a throttle valve driver for driving the throttle valve of the engine, an operating state detector for detecting a particular operating state of the engine such as "knock" or resonance with the vehicle body, and a controller for controlling the transmission controller and the throttle valve driver. The controller controls the transmission controller and the throttle valve driver to respectively control the transmission ratio of the stepless transmission and the opening degree of the throttle valve so as to obtain that engine output which corresponds to the amount of depression of the acceleration pedal.