Class / Patent application number | Description | Number of patent applications / Date published |
475002000 | Condition responsive motor control | 9 |
20110111905 | SINGLE PLANETARY HYBRID POWERTRAIN WITH AT LEAST THREE ELECTRICALLY-VARIABLE OPERATING MODES - A hybrid powertrain has an engine, an input member, an output member, and a stationary member, and includes a single planetary gear set having a first, a second, and a third member. The input member is connected for common rotation with the engine. The output member is connected for common rotation with the second member. A first and a second motor/generator are provided, as well as five torque-transmitting mechanisms, including only one brake. The torque-transmitting mechanisms are engagable in different combinations to establish at least two electric-only operating mode, at least two engine-only operating mode, and at least three electrically-variable operating modes. In one embodiment, an electric torque converter operating mode is provided, and may be the default mode in case of motor/generator failure. | 05-12-2011 |
20110136607 | SYNCHRONIZER IN ELECTRO-MECHANICAL TRANSMISSION - An electro-mechanical transmission includes a plurality of transmission components and at least one synchronizer configured to selectively engage and disengage at least two of the transmission components to effect operation in a speed range in the transmission. The synchronizer further includes a plurality of input components associated with one of the transmission components and a plurality of output components including a clutching mechanism configured to engage to at least one of the input components when the synchronizer is activated and disengage from the input component when the synchronizer is deactivated. | 06-09-2011 |
20130345007 | CONTINUOUSLY VARIABLE TRANSMISSION FOR MOTOR VEHICLES - A continuously variable transmission for transferring drive torque from a powertrain to a driveline in a motor vehicle includes a planetary gearset, a reaction motor, and a control system. The planetary gearset includes a sun gear driven by the powertrain, a ring gear driven by the reaction motor, a carrier driving the driveline, and pinion gears meshed with the sun gear and the ring gear. The control system controls the reaction motor to vary the speed of the ring gear and define a gear ratio between the sun gear and the carrier based on the ring gear speed. | 12-26-2013 |
20140274522 | HYDRAULIC HYBRID SYSTEM - A hydraulic hybrid system for implementation in a machine. The system includes a hydraulic system, an energy source, an output, and a transmission. The hydraulic system includes a primary hydraulic pump/motor (primary motor) that is hydraulically coupled to a reservoir and a variable-volume accumulator assembly. The primary motor is configured to charge an accumulator of the variable-volume accumulator assembly with a working fluid when mechanically driven. The storage volume of variable-volume accumulator assembly varies based on a kinetic output condition of the machine. The energy source is configured to produce primary kinetic energy. The output is configured to receive at least a first portion of the primary kinetic energy. The transmission is coupled between the energy source and the output and selectively coupled to the primary motor. The transmission is configured to mechanically drive the primary motor using a second portion of the primary kinetic energy. | 09-18-2014 |
20150087457 | DRIVE CONTROL DEVICE FOR HYBRID VEHICLE - A drive control device for a hybrid vehicle is provided with a differential device including four rotary elements; and an engine, first and second electric motors and an output rotary member which are respectively connected to the four rotary elements. One of the four rotary elements is constituted by a rotary component of a first differential mechanism and a rotary component of a second differential mechanism selectively connected through a clutch, and one of the rotary components is selectively fixed to a stationary member through a brake. The hybrid vehicle is selectively placed in a plurality of drive modes according to respective combinations of engaged and released states of the clutch and the brake. The drive control device comprises: a drive mode determining portion configured to switch the drive mode on the basis of a temperature condition of a drive system of the hybrid vehicle, the drive mode determining portion switching the drive system to a drive mode in which the clutch is placed in the engaged state, when a temperature of the drive system has become equal to or higher than a predetermined threshold value. | 03-26-2015 |
20150291256 | HUBS INCORPORATING A VARIABLE RATIO TRANSMISSION SYSTEM - A hub comprises a cylindrical, hollow hub member which is mounted to rotate about its axis and accommodated in whose interior is a continuously variable ratio transmission system having an input, which is mounted to rotate about the axis, and an output mounted to rotate with the hub member. The transmission system comprises a single epicyclic gearset including a sun gear in mesh with a plurality of planet gears mounted to rotate about respective planet shafts carried by a common carrier, which is mounted to rotate with the input about the axis. The planet gears are in mesh with an annulus gear, which is connected to rotate with the rotors of first and second electric motor/generators, respectively. The electrical connections of the stators of the two motor/generators are connected by a controller arranged to control the transmission of power from one motor/generator to the other. The hub further includes a one-way clutch, which includes a drive member, which is constituted by the common carrier and a driven member, which is connected to rotate with the hub member. The one-way clutch is arranged to connect the hub member to rotate with the carrier as soon as the carrier rotates faster than the hub member. | 10-15-2015 |
20150367839 | VEHICLE DRIVE APPARATUS - A vehicle drive apparatus includes: an engine; a rotary machine; an output member coupled to a drive wheel of a vehicle; a differential mechanism configured to couple the engine, the rotary machine, and the output member together to be differentially rotatable via a plurality of differentially rotatable rotational elements; and an elastic member configured to couple a rotation shaft of the rotary machine to the rotational element of the differential mechanism to be relatively rotatable. | 12-24-2015 |
20160091061 | METHOD AND DEVICE FOR STARTING A DRIVE TRAIN - In a method and a drive for starting a drive train, with a drive shaft ( | 03-31-2016 |
20160137050 | HYBRID VEHICLE - A hybrid vehicle uses a first motor, a second motor and an engine as driving force sources and includes a gear transmission mechanism and an oil supply mechanism. The gear transmission mechanism transmits torque, output from the first motor, to a drive shaft side. The oil supply mechanism is driven by power other than power of the engine to supply oil to the gear transmission mechanism. When the hybrid vehicle is caused to travel by using the torque output from at least the first motor in a state where operation of the engine is stopped, and when an estimated amount of oil that is supplied from the oil supply mechanism to the gear transmission mechanism is smaller than or equal to a predetermined amount, an electronic control unit limits an operation state of the first motor such that load on the gear transmission mechanism decreases. | 05-19-2016 |