Patent application number | Description | Published |
20080207387 | PLANETARY GEAR TYPE MULTISTAGE TRANSMISSION FOR VEHICLE - The transmission | 08-28-2008 |
20080261749 | MULTISTAGE TRANSMISSION - With the automatic transmission | 10-23-2008 |
20120316028 | POWER TRANSMISSION CONTROLLING APPARATUS - A power transmission controlling apparatus of a vehicle includes a clutch capable of connecting/disconnecting power transmission between an engine and a motor/generator, and a torque converter enabling power transmission between the engine or/and the motor/generator and an automatic transmission. When the engine is started by motoring torque with engagement of the clutch during rotation of the motor/generator, the power transmission controlling apparatus sets a torque compensation amount by the motor/generator based on an estimated torque capacity of the clutch, and suppresses torque fluctuations on a power transmission path accompanying engagement of the clutch by power of the motor/generator containing the torque compensation amount. The power transmission controlling apparatus corrects the torque capacity or the torque compensation amount based on input torque of the torque converter. | 12-13-2012 |
20130035202 | POWER TRANSMISSION DEVICE - A power transmission device has a rigid body that includes a contact portion coming into contact with the first or second friction member and that moves the contact portion from a position of contact with the first or second friction member to a position of no contact with the first and second friction members, an elastic body that applies to the rigid body a force moving the contact portion to a position of contact with the first or second friction member, a first pushing mechanism that applies to the rigid body a pressure of liquid moving the contact portion to a position of contact with the first or second friction member, and a second pushing mechanism that applies to the rigid body a pressure of liquid moving the contact portion to a position of no contact with the first and second friction members. | 02-07-2013 |
20130196817 | VEHICLE DRIVE DEVICE - A vehicle drive device comprising: an engine; a hydraulic transmission device constituting a portion of a power transmission path between the engine and drive wheels; and an electric motor, the engine and the hydraulic transmission device disposed to rotate around one axial center, the electric motor disposed with a rotation axial center different from the one axial center, the electric motor coupled to an input-side rotating element of the hydraulic transmission device receiving input of a drive force from the engine, the input-side rotating element being rotatable around the one axial center, the electric motor coupled to the input-side rotating element via an electric motor coupling rotating element coupled relatively non-rotatably to the input-side rotating element, a hydraulic pump rotationally driven by the input-side rotating element of the hydraulic transmission device disposed such that a rotor of the hydraulic pump rotates around the one axial center, and a coupling portion of the electric motor coupling rotating element for the input-side rotating element inserted into a pump-cover through-hole formed on an internal side of the pump-cover through-hole of the hydraulic pump in a radial direction, along with a portion of the input-side rotating element, and coupled relatively non-rotatably to the input-side rotating element in the pump-cover through-hole, in order to couple the input-side rotating element to the rotor. | 08-01-2013 |
20130277163 | VEHICLE POWER TRANSMISSION DEVICE - Providing a vehicle power transmission device including a hydraulic power transmission device and enabling a shorter entire axial length. | 10-24-2013 |
20130284554 | VEHICLE POWER TRANSMISSION DEVICE - It is provided a vehicle power transmission device having a hydraulic power transmission device and a power transmission mechanism in a power transmission path between an engine and drive wheels, the hydraulic power transmission device including an input-side rotating member disposed with a plurality of pump blades and an output-side rotating member disposed with a plurality of turbine blades receiving a fluid flow from the pump blades, the power transmission mechanism transmitting power input to an input shaft from the hydraulic power transmission device to a subsequent stage, the output-side rotating member being coupled by relatively non-rotatable fitting to the input shaft on the power transmission mechanism side relative to the pump blades and the turbine blades in an axial center direction of the hydraulic power transmission device, the hydraulic power transmission device being a torque converter having a stator coupled via a one way clutch to a tubular stator shaft concentric with the input shaft and having a diameter larger than the input shaft, a tubular coupling shaft having a diameter larger than the input shaft being disposed to project from an inner circumferential edge portion of an inner race of the one way clutch in the axial center direction, and the stator shaft being coupled by relatively non-rotatable fitting to the tubular coupling shaft of the inner race at a position partially or entirely overlapping with a coupling portion of the output-side rotating member to the input shaft when viewed in the direction orthogonal to the axial center. | 10-31-2013 |
20130288853 | CONTROL DEVICE OF HYBRID VEHICLE (AS AMENDED) - It is provided a control device of a hybrid vehicle having a clutch in a power transmission path between an engine and a motor generator, the clutch controlling power transmission through the power transmission path depending on an engagement state, the hybrid vehicle interrupting the power transmission through the power transmission path by releasing the clutch during EV running while only the motor generator is used as a drive source for running, during the EV running while a release instruction for the clutch is output, if the engine being driven, a rotation speed of the engine is maintained within a predetermined rotation speed difference from a rotation speed of the motor generator. | 10-31-2013 |
20130306423 | VEHICLE POWER TRANSMISSION DEVICE - It is provided a vehicle power transmission device having a torque converter and a power transmission mechanism in a power transmission path between an engine and drive wheels, the torque converter including an input-side rotating member disposed with a plurality of pump blades, an output-side rotating member disposed with a plurality of turbine blades receiving a fluid flow from the pump blades, and a stator disposed with a stator blade disposed between the pump blades and the turbine blades, the power transmission mechanism transmitting power input to an input shaft from the torque converter to a subsequent stage, within a circulation flow passage allowing circulation of fluid in the torque converter, a circulation outward passage allowing the fluid to flow toward the inside of the torque converter at the time of the circulation being made up of a gap between the input shaft of the power transmission mechanism and a tubular stator shaft coupled via a one way clutch to the stator, and the stator shaft being concentric with the input shaft and has a diameter larger than the input shaft, the torque converter including a lockup clutch selectively coupling the input-side rotating member to the output-side rotating member, the lockup clutch having a release-side chamber consisting of a portion of the circulation outward passage and having an inner pressure increased by supply of the fluid when the lockup clutch is released, the lockup clutch being disposed on a side opposite to the stator shaft relative to the output-side rotating member, the circulation outward passage including a through-hole penetrating the output-side rotating member in an axial center direction of the torque converter to be in communication with a gap between the input shaft of the power transmission mechanism and the stator shaft, and a gap in the axial center direction between the stator and the output-side rotating member being oil-tightly sealed on an outer circumferential side of the through-hole. | 11-21-2013 |
20130331228 | CONTROL DEVICE OF HYBRID VEHICLE (AS AMENDED) - It is provided a control device of a hybrid vehicle having an engine, an electric motor, a clutch disposed in a power transmission path between the engine and the electric motor, and a hydraulic power transmission device with a lockup clutch disposed in a power transmission path between the electric motor and drive wheels, the control device being configured to engage the clutch and provide slip control of the lockup clutch when the engine is started from motor running using the electric motor, and to lower an engagement pressure of the lockup clutch as compared to the case of an engine start caused by an acceleration request from a driver if the start of the engine is an engine start caused by a request from a hybrid system. | 12-12-2013 |
20140162839 | CONTROL DEVICE OF HYBRID VEHICLE - In a case of engagement when a clutch K | 06-12-2014 |
20140172217 | VEHICLE TRAVEL CONTROL APPARATUS - A vehicle running control device in a vehicle includes a power connecting/disconnecting device interrupting power transmission between an engine and drive wheels, the vehicle running control device providing free-run control of interrupting the power transmission with the power connecting/disconnecting device and stopping the engine during inertia running, the vehicle running control device being configured to determine a target vehicle deceleration at the start of the free-run control based on a vehicle speed and to estimate an estimated vehicle deceleration when the free-run control is started, before starting the free-run control, and when the estimated vehicle deceleration is closer to the target vehicle deceleration at the start of the free-run control, the free-run control being more easily provided. | 06-19-2014 |
20140195135 | VEHICLE DRIVE CONTROL DEVICE - A vehicle drive control device performs acceleration/deceleration running by alternately repeating acceleration running and deceleration running, wherein it compares between an efficiency of the motor at a first operation point determined by a rotation speed and a torque of a motor and an efficiency of the motor at a second operation point for outputting a higher torque than the first operation point, and if a difference between the efficiencies is greater than a determination value, the acceleration running at the second operation point and the deceleration running being repeated, the second operation point being set a maximum efficiency line of the motor with the rotation speed and the torque of the motor as parameters to perform the acceleration running, and if acceleration during the acceleration running becomes larger than an acceleration limit value, a rotating machine acting at least as an electric generator generating electricity to charge a battery. | 07-10-2014 |
20140216375 | VEHICLE ENGINE CONTROL DEVICE - A control device of a vehicle engine comprises: an electric motor rotationally driving an engine to start the engine; a variable valve timing mechanism varying a valve timing of an intake valve of the engine; and an intermediate lock mechanism mechanically locking the valve timing at an intermediate position between a most delayed position and a most advanced position of the valve timing, if an output limitation of the electric motor is predicted at restart of the engine, the valve timing at the time of stop of the engine being locked at the intermediate lock position by the intermediate lock mechanism. | 08-07-2014 |
20140256506 | VEHICLE POWER TRANSMISSION DEVICE - A vehicle power transmission device having a torque converter in a power transmission path between an engine and drive wheels, the torque converter including an input-side rotating member disposed with a plurality of pump blades, an output-side rotating member disposed with a plurality of turbine blades receiving a fluid flow from the pump blades, and a stator disposed with a stator blade disposed between the pump blades and the turbine blades, the vehicle power transmission device includes: a case including a first chamber and a second chamber separated by a bulkhead disposed on an opposite side of the torque converter to the engine, the first chamber housing the torque converter, the second chamber being formed on an opposite side of the bulkhead to the torque converter, the first chamber and the second chamber being oil-tightly isolated from each other by an oil seal oil-tightly sealing a gap between an inner circumferential surface of the bulkhead and an outer circumferential surface of a cylindrical rotation shaft projected from the input-side rotating member toward the second chamber, the vehicle power transmission device being disposed with a thrust bearing between a side wall portion of the input-side rotating member closer to the bulkhead and the stator, the thrust bearing being disposed to partially or entirely overlap with the oil seal when viewed in a direction orthogonal to an axial center of the torque converter. a one way clutch being disposed between the stator and a non-rotating member which supports the stator, and a portion of the one way clutch protruding toward the second chamber as compared to the stator and an inner race of the one way clutch, the input-side rotating member having an annular projecting portion formed by projecting a portion at a radial position corresponding to the thrust bearing toward the bulkhead over entire circumference in the side wall portion of the input-side rotating member closer to the bulkhead, and the annular projecting portion containing the thrust bearing and a portion of the one way clutch. | 09-11-2014 |
20140336893 | VEHICLE CONTROL DEVICE - A vehicle control device includes: an engine and a first motor generator from both of which a driving force for traveling is output to drive wheels; and an electricity storage device that storages electric power for driving the first motor generator. When a vehicle weight is in a reference state at a time of deceleration braking, the first motor generator is mainly caused, out of the first motor generator and the engine, to generate a braking force, and when the vehicle weight is greater than that in the reference state, the engine is mainly caused, out of the first motor generator and the engine, to generate the braking force. Thus, a sufficient braking force can be obtained while an input limit of the electricity storage device is prevented from being reached. | 11-13-2014 |
20140379189 | VEHICLE CONTROL DEVICE - A control device of a vehicle comprises: an electric motor connected to a drive force transmission path through a first connecting/disconnecting device connecting/interrupting power transmission; and an engine connected to the electric motor through a second connecting/disconnecting device connecting/interrupting power transmission, the control device of a vehicle disconnecting the first connecting/disconnecting device or the second connecting/disconnecting device during running to perform coasting with the engine separated, when performing coasting, a determination whether a vehicle speed is equal to or lower than a predetermined determination vehicle speed implemented, the engine separated by disconnecting the second connecting/disconnecting device with the first connecting/disconnecting device kept connected at a low vehicle speed where the vehicle speed is equal to or lower than the predetermined determination vehicle speed, and the engine separated by disconnecting the first connecting/disconnecting device at a high vehicle speed where the vehicle speed is higher than the predetermined determination vehicle speed. | 12-25-2014 |
20150039167 | CONTROL DEVICE FOR HYBRID VEHICLE - A control device of a hybrid vehicle including an electric motor and an engine as drive force sources, the hybrid vehicle being configured to execute engine running using the engine as the drive force source for running and motor running using the electric motor as the drive force source for running with the engine stopped, the control device having a predefined running performance oriented running mode such as a sport running mode and a predefined large drive force running mode with a lower requirement degree of start acceleration performance as compared to the running performance oriented running mode, in the predefined running performance oriented running mode, the motor running being inhibited, the engine running being performed in an operation range in which the motor running is normally performed, and the engine being retained in an operating state at the time of vehicle stop, and in the predefined large drive force running mode, the motor running being inhibited, the engine running being performed in the operation range in which the motor running is normally performed, and the engine being stopped at the time of vehicle stop. | 02-05-2015 |