Abstract: In an axial gap type rotating electric machine, a rotor (23) is arranged in an axial direction of the rotating electric machine and includes a plurality of permanent magnets magnetized in a circumferential direction of the rotating electric machine with respect to a revolution axis thereof and magnetized in a radial direction thereof with respect to the revolution axis thereof and a stator (25) is arranged in the axial direction thereof and includes a plurality of stator elements (24-1, 24-2), each stator element being constituted by a stator coil (33) and a stator tooth (34) and being opposed against the rotor via an axial gap provided in the axial-direction thereof and the stator further including other stator elements (24-3) arranged to be opposed against at least one of an outer circumferential portion of the rotor in the radial direction and an inner circumferential portion thereof in the radial direction.

Abstract: In a hybrid transmission and its assembling method, a differential unit is constituted by a single pinion planetary gear set and a double pinion planetary gear set holding a carrier in common to the single planetary gear set and having five rotary members from among which, when revolution states of two rotary members are determined, those of the other rotary members are determined, an input end from a prime mover is coupled to a ring gear of the double pinion planetary gear set, an output end to a drive system that is coupled to the common carrier, a first motor/generator that is coupled to a sun gear of the double pinion planetary gear set, a second motor/generator that is coupled to a sun gear of the single pinion planetary gear set, and a brake enabled to brake a ring gear of the single pinion planetary gear set.

Abstract: In a hybrid transmission and its assembling method, a differential unit is constituted by a single pinion planetary gear set and a double pinion planetary gear set holding a carrier in common to the single planetary gear set and having five rotary members from among which, when revolution states of two rotary members are determined, those of the other rotary members are determined, an input end from a prime mover is coupled to a ring gear of the double pinion planetary gear set, an output end to a drive system that is coupled to the common carrier, a first motor/generator that is coupled to a sun gear of the double pinion planetary gear set, a second motor/generator that is coupled to a sun gear of the single pinion planetary gear set, and a brake enabled to brake a ring gear of the single pinion planetary gear set.

Abstract: An axial gap motor is described which comprises a rotor shaft rotatable about its axis in case. A rotor is fixed to the rotor shaft to rotate therewith. The rotor includes a plurality of magnets. A stator is disposed about the rotor shaft at a position to coaxially face the rotor. The stator includes a plurality of coils. The magnets of the rotor have each opposed pole faces that extend in a direction other than a direction that is perpendicular to the axis of the rotor shaft.

Abstract: A hybrid transmission for a four-wheel drive hybrid vehicle. A simple planetary gearset as a front planetary gearset and a double-pinion planetary gearset as a rear planetary gearset are mounted in a rear section of a transmission housing. A pair of motor/generators are mounted in a front section of the transmission housing nearer to an engine. A first planet-pinion carrier is connected to a second planet-pinion carrier, and to an engine input shaft via an engine clutch. A tubular first ring gear is connected to a first output shaft for driving a front axle. A second ring gear is connected to a second output shaft for driving a rear axle. The second output shaft extends through a bore of the first output shaft. A first sun gear is connected to the first motor/generator. A second sun gear is connected to the second motor/generator.

Abstract: A hybrid transmission for a hybrid vehicle is comprised of a two-degree-of-freedom differential mechanism and a brake. The differential mechanism includes at least five rotating members wherein four of the rotating members are connected to an input from a main power source, an output to a driveline, first and second mover/generators, respectively. The brake is connected to one of the rotating members and is capable of being put in an engaged state to brake the one of the rotating members. The hybrid transmission is set so that an absolute value of a revolution speed of the rotating member connected to the output is greater than an absolute value of a revolution speed of the rotating member connected to the input when the brake is put in the engaged state.

Abstract: A shift control device includes a controller and a differential mechanism including four rotating elements. Each of the elements is connected to an engine, two motor/generators and an output. The controller is programmed to calculate a target driving power; make a judgment as to whether the target driving power is less than or equal to a driving power wherein the engine is driven under optimum fuel efficiency; when the judgment shows that the target driving power is larger than the driving power, calculate an engine's speed and torque wherein the target driving power is realized such that the engine is driven for maximum load; and control the engine under the engine's speed and torque.

Abstract: In a hybrid automatic transmission of a hybrid electric vehicle equipped with a differential device having two-degree-of-freedom and at least four rotating members respectively connected to a prime mover as an input element, a drive train as an output element, and first and second motor-generators. A specified relationship among inertias of rotating systems relating to the prime mover, output element, and first and second motor-generators, a first lever ratio of a distance between an input element and the first motor-generator to a distance between the input and output elements, and a second lever ratio of a distance between the output element and the second motor-generator to the distance between the input and output elements is determined, so that a center of gravity of a lever on an alignment chart of the hybrid transmission is laid out on the output element or between the output element and the second motor-generator.

Abstract: In control apparatus and method for taking failure countermeasure for a hybrid vehicular drive system, on a lever diagram of a planetary gear mechanism, a revolution speed order is a first motor/generator, an engine, the output member, and a second motor/generator, high-brake and low-brake are arranged at one and the other ends of the lever diagram, respectively, with the output member as an intermediate position on the lever diagram, an output abnormality of each of the engine, the first motor/generator, and the second motor/generator which are drive sources is detected, and, with one of the first and second clutching sections clutched, a vehicular run using at least one of the drive sources whose output is detected to be normal is enabled when the drive source output abnormality detecting section detects that the output abnormalities in any one or two of the drive sources occur.

Abstract: The motor/generator according to this invention is provided with a first rotor (23), a second rotor (21) and a stator (22) provided with a plurality of stator coils (1-6). The first rotor (23) is provided with magnetic poles by a magnet. The second rotor (21) is provided with magnetic poles by a magnet and a plurality of rotor coils (A-D). The motor/generator functions as a magnetic coupling by creating an equal number of magnetic poles in the first rotor (23) and the second rotor (21). When the first rotor (23) and the second rotor (21) are rotated by supplying a polyphase alternating current to the stator coils (1-6), a part of the rotor coils (A-D) are excited and the number of magnetic poles of the second rotor (21) is varied to allow independent rotation of the first rotor (23) and the second rotor (21).

Abstract: A hybrid transmission for a hybrid vehicle is comprised of a two-degree-of-freedom differential mechanism and a brake. The differential mechanism includes at least five rotating members wherein four of the rotating members are connected to an input from a main power source, an output to a driveline, first and second mover/generators, respectively. The brake is connected to one of the rotating members and is capable of being put in an engaged state to brake the one of the rotating members. The hybrid transmission is set so that an absolute value of a revolution speed of the rotating member connected to the output is greater than an absolute value of a revolution speed of the rotating member connected to the input when the brake is put in the engaged state.

Abstract: A control device for a rotating electrical machine system having a plurality of rotating electrical machines is provided with a single current control circuit and a controller. The controller sets an operating point of at least one rotating electrical machine of the plurality of rotating electrical machines, and sets the current for each rotating electrical machine so that one of the efficiency of the current control circuit and the overall efficiency with respect to all the rotating electrical machines. The controller controls the current control circuit so that the current control circuit supplies a composite current to all rotating electrical machines, the composite current combining the set current for each rotating electrical machine.

Abstract: In a hybrid automatic transmission of a hybrid electric vehicle equipped with a differential device having two-degree-of-freedom and at least four rotating members respectively connected to a prime mover as an input element, a drive train as an output element, and first and second motor-generators. A specified relationship among inertias of rotating systems relating to the prime mover, output element, and first and second motor-generators, a first lever ratio of a distance between an input element and the first motor-generator to a distance between the input and output elements, and a second lever ratio of a distance between the output element and the second motor-generator to the distance between the input and output elements is determined, so that a center of gravity of a lever on an alignment chart of the hybrid transmission is laid out on the output element or between the output element and the second motor-generator.

Abstract: A shift control device includes a controller and a differential mechanism including four rotating elements. Each of the elements is connected to an engine, two motor/generators and an output.

Abstract: In a hybrid transmission and its assembling method, a differential unit is constituted by a single pinion planetary gear set and a double pinion planetary gear set holding a carrier in common to the single planetary gear set and having five rotary members from among which, when revolution states of two rotary members are determined, those of the other rotary members are determined, an input end from a prime mover is coupled to a ring gear of the double pinion planetary gear set, an output end to a drive system that is coupled to the common carrier, a first motor/generator that is coupled to a sun gear of the double pinion planetary gear set, a second motor/generator that is coupled to a sun gear of the single pinion planetary gear set, and a brake enabled to brake a ring gear of the single pinion planetary gear set.

Abstract: A drive circuit for a motor/generator, having a first rotating electrical machine which is mainly used as a motor and a second rotating electrical machine which is mainly used as a generator, is characterized in that a booster circuit is disposed at a position where the current for rotating the first rotating electrical motor cancels out with the current generated by the second rotating electrical machine. In this manner, the booster circuit comprising small capacity elements can be used in the drive circuit for the motor/generator.

Abstract: A control device for a rotating electrical machine system having a plurality of rotating electrical machines is provided with a single current control circuit and a controller. The controller sets an operating point of at least one rotating electrical machine of the plurality of rotating electrical machines, and sets the current for each rotating electrical machine so that one of the efficiency of the current control circuit and the overall efficiency with respect to all the rotating electrical machines. The controller controls the current control circuit so that the current control circuit supplies a composite current to all rotating electrical machines, the composite current combining the set current for each rotating electrical machine.

Abstract: An inverter (23) generates a composite current comprising an electrical current for a first rotor (4) and an electrical current for a second rotor (3). A microprocessor (22) controls the inverter (23) so that the average value of the composite current is smaller than the sum of the average values of the respective currents.

Abstract: An inverter (23) generates a composite current comprising an electrical current for a first rotor (4) and an electrical current for a second rotor (3). A microprocessor (22) controls the inverter (23) so that the average value of the composite current is smaller than the sum of the average values of the respective currents.

Abstract: A drive circuit for a motor/generator, having a first rotating electrical machine which is mainly used as a motor and a second rotating electrical machine which is mainly used as a generator, is characterized in that a booster circuit is disposed at a position where the current for rotating the first rotating electrical motor cancels out with the current generated by the second rotating electrical machine. In this manner, the booster circuit comprising small capacity elements can be used in the drive circuit for the motor/generator.