Patent application number | Description | Published |
20110093173 | VEHICLE GEAR SHIFT CONTROL DEVICE AND GEAR SHIFT CONTROL METHOD - In a gear shift control device for a vehicle that shifts a transmission having a plurality of gears based on a shift line set in a shift map, an upshift line for shifting to the highest gear, and a downshift line that is located in a high vehicle speed region on the side of a higher vehicle speed than the upshift line are set in the shift map. The downshift line is used when shifting from the highest gear to a prescribed gear that has a larger gear ratio than the highest gear. | 04-21-2011 |
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 |
20130111891 | VEHICLE DRIVE DEVICE - A vehicle drive includes a speed change mechanism connected to a rotary electric machine; an output member connected to the speed change mechanism and wheels; an engagement device changes a state of engagement between an input member connected to an engine and the speed change mechanism; a hydraulic pump driven by the engine or the rotary electric machine; a first pressure control device that controls pressure supplied from the pump and supplies the pressure to the speed change mechanism; a second, separate hydraulic pressure control device that controls the pressure supplied from the pump and supplies the pressure to the engagement device; and a case that houses the rotary electric machine, speed change mechanism, engagement device, and pump. At least the engagement device is housed in a space formed by the case, and the second hydraulic pressure control device is provided at a part of the case forming the space. | 05-09-2013 |
20140209059 | ENGINE START CONTROL APPARATUS FOR HYBRID VEHICLE - In a hybrid vehicle, when using an ignition start to start a direct injection engine while any one of the cylinders has stopped near top dead center, engine revolutions are raised by producing a first explosion in a first cylinder, which is situated before a second cylinder in an ignition sequence and is in an expansion stroke and in which an exhaust value is not open, by directly injecting fuel into the first cylinder and igniting the fuel. Furthermore, assistance in increasing the engine revolutions is started by transmitting assist torque output from a motor-generator to the direct injection engine via a clutch, in a peak section immediately after the start of increase in the engine revolutions. The stopped direct injection engine can be started using a sufficient required assist torque, namely, electrical energy, whereby the electrical energy for engine starting that is always reserved in a battery (accumulator apparatus) is reduced and therefore a travel range is increased and vehicle fuel consumption is improved appropriately. | 07-31-2014 |
20140230423 | VEHICLE DRIVE DEVICE - A vehicle drive device for a rotary electric machine. A case of the device includes a support wall portion that extends in a radial direction of the rotary electric machine at a location between the rotary electric machine and the fluid coupling in the axial direction. A first bearing and a second bearing that is separate from the first bearing are disposed at different positions in the radial direction from each other, the first bearing being configured to support the rotor member in the radial direction so as to be rotatable with respect to the support wall portion, and the second bearing being configured to support the coupling input member in the radial direction so as to be rotatable with respect to the support wall portion. | 08-21-2014 |
20140277890 | CONTROL DEVICE FOR HYBRID VEHICLE - Provided is a control device for a hybrid vehicle capable of attaining an assist torque generated by a clutch mechanism at an appropriate timing, upon starting the engine. Since an electronic control device outputs an engagement command for engaging a clutch (clutch mechanism) at a time preceding an (ignition) start command time for igniting an engine by a preceding-sending time, the clutch becomes engaged when the engine speed starts to increase, and the assist torque generated by the clutch mechanism can thus be obtained at an appropriate timing. Because the engine speed that was once increased upon starting the engine is not decreased, the energy that was consumed for starting the engine can be effectively used. | 09-18-2014 |
20140305389 | VEHICLE DRIVE DEVICE - A vehicle drive includes a speed change mechanism connected to a rotary electric machine; an output member connected to the speed change mechanism and wheels; an engagement device changes a state of engagement between an input member connected to an engine and the speed change mechanism; a hydraulic pump driven by the engine or the rotary electric machine; a first pressure control device that controls pressure supplied from the pump and supplies the pressure to the speed change mechanism; a second, separate hydraulic pressure control device that controls the pressure supplied from the pump and supplies the pressure to the engagement device; and a case that houses the rotary electric machine, speed change mechanism, engagement device, and pump. At least the engagement device is housed in a space formed by the case, and the second hydraulic pressure control device is provided at a part of the case forming the space. | 10-16-2014 |
20140305721 | VEHICLE DRIVE DEVICE - A vehicle drive includes a speed change mechanism connected to a rotary electric machine; an output member connected to the speed change mechanism and wheels; an engagement device changes a state of engagement between an input member connected to an engine and the speed change mechanism; a hydraulic pump driven by the engine or the rotary electric machine; a first pressure control device that controls pressure supplied from the pump and supplies the pressure to the speed change mechanism; a second, separate hydraulic pressure control device that controls the pressure supplied from the pump and supplies the pressure to the engagement device; and a case that houses the rotary electric machine, speed change mechanism, engagement device, and pump. At least the engagement device is housed in a space formed by the case, and the second hydraulic pressure control device is provided at a part of the case forming the space. | 10-16-2014 |
20140311425 | VEHICLE DRIVE DEVICE - A vehicle drive includes a speed change mechanism connected to a rotary electric machine; an output member connected to the speed change mechanism and wheels; an engagement device changes a state of engagement between an input member connected to an engine and the speed change mechanism; a hydraulic pump driven by the engine or the rotary electric machine; a first pressure control device that controls pressure supplied from the pump and supplies the pressure to the speed change mechanism; a second, separate hydraulic pressure control device that controls the pressure supplied from the pump and supplies the pressure to the engagement device; and a case that houses the rotary electric machine, speed change mechanism, engagement device, and pump. At least the engagement device is housed in a space formed by the case, and the second hydraulic pressure control device is provided at a part of the case forming the space. | 10-23-2014 |
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 |
20140336904 | VEHICLE CONTROL DEVICE - A vehicle control device includes a direct-injection engine and an electric rotating machine connected to the engine, wherein the vehicle control device stops the engine after opening a throttle while maintaining an engine speed by the electric rotating machine at the time there is a request to stop the engine. The engine speed is preferably maintained by an output torque of the electric rotating machine at the time fuel supply to the engine is stopped and the throttle is opened. At the time the throttle is opened while fuel is continuously supplied to the engine, it is preferable to maintain the engine speed by allowing the electric rotating machine to generate electric power. | 11-13-2014 |
20140342873 | VEHICLE CONTROL APPARATUS - To provide a vehicle control apparatus which can suppress a shock in a clutch from being generated at a time of starting an engine by a motor in a vehicle having the clutch provided therein between the engine and the motor, thereby improving a drivability of the vehicle. Provided is a vehicle control apparatus, comprising: an engine, a motor generator connected to vehicle wheels of a vehicle, and a clutch that switches a transmission state between a disengaging state and an engaging state, in which the vehicle control apparatus switches the clutch in the engaging state to start the engine by the motor generator. When the engine is started by the motor generator, the vehicle control apparatus constantly keeps the compensation torque of the motor generator smaller than the clutch torque of the clutch. | 11-20-2014 |
Patent application number | Description | Published |
20080207374 | Drive apparatus - A hybrid drive unit that includes an input shaft connected to an engine; an output shaft connected to wheels; a first rotary electric machine; a second rotary electric machine connected to the output shaft; a power distribution device that distributes a rotational driving force of the input shaft to the output shaft and to the first rotary electric machine; a second rotary electric machine fixing device that selectively fixes a rotor of the second rotary electric machine; and a transmission cutoff device capable of cutting off transmission of rotation between the output shaft and the second rotary electric machine at least in a state when the rotor of the second rotary electric machine is fixed. | 08-28-2008 |
20100012407 | POWER OUTPUT APPARATUS AND HYBRID VEHICLE - A hybrid vehicle includes an engine, motors, and a power distribution and integration mechanism that are coaxially arranged with respect to each other. The hybrid vehicle also includes a transmission including a transmission differential rotation mechanism that is a single pinion planetary gear mechanism having a sun gear, a ring gear, and a carrier that is connected to a drive shaft, and that is configured such that these three elements can differentially rotate with each other; and a clutch capable of selectively coupling one of or both of the carrier and the sun gear of the power distribution and integration mechanism with the sun gear of the transmission differential rotation mechanism. | 01-21-2010 |
20100018789 | COUPLING DEVICE, AND POWER OUTPUT APPARATUS AND HYBRID VEHICLE INCLUDING COUPLING DEVICE - A clutch included in a transmission includes a first engaging portion provided in a first motor shaft, a second engaging portion provided in a carrier shaft spaced apart from the first engaging portion in an axial direction, a third engaging portion provided in sun gear shaft so as to surround the first and second engaging portions, a first movable engaging member that can engage with both the first and third engaging portions and is movable in an axial direction, a second movable engaging member that can engage with both the second and third engaging portions and is movable in an axial direction and first and second actuators that move the movable engaging members in an axial direction. | 01-28-2010 |
20100044128 | POWER OUTPUT APPARATUS AND HYBRID VEHICLE - The hybrid vehicle includes an engine, two motors, and a power distribution integration mechanism arranged coaxially with one another and a transmission. The transmission includes a transmission shaft extended in parallel with a first motor shaft and a second motor shaft, a first coupling gear train in combination with a second coupling gear train and a clutch arranged to selectively connect a ring gear and a sun gear of the power distribution integration mechanism to the transmission shaft, a deceleration mechanism connected with the transmission shaft and arranged to decelerate power from the transmission shaft and output the power of the reduced speed from a carrier, and a clutch arranged to selectively connect the carrier and the ring gear to a driveshaft. | 02-25-2010 |
20100051360 | COUPLING DEVICE, AND POWER OUTPUT APPARATUS AND HYBRID VEHICLE INCLUDING COUPLING DEVICE - A clutch includes a first engaging portion of a first motor shaft, a second engaging portion of a carrier shaft, a third engaging portion of a sun gear shaft having a flange portion facing the second engaging portion, a first movable engaging member that can engage with both the first and third engaging portions, and a second movable engaging member including a sliding portion slidably supported by the sun gear shaft, an engaging portion that can engage with the second engaging portion on the side closer to the carrier shaft than the flange portion, and a connecting portion that connects the sliding portion and the engaging portion and has a projecting piece inserted into a hole portion of the flange portion, and actuators. | 03-04-2010 |
20110160947 | CONTROL DEVICE OF A HYBRID VEHICLE - A control device of a hybrid vehicle includes: a map defined by an accelerator opening degree and a vehicle speed and in which an infinite variable speed mode and a fixed speed change mode are set; and a control means which switches the speed change mode in accordance with the movement of the vehicle operation point on the map. The fixed speed change mode area includes: a first fixed speed change mode area in which the reaction torque becomes equal to or smaller than the maximum rating torque of the motor generator, and a second fixed speed change mode area in which the reaction torque becomes larger than the maximum rating torque. The control means differentiates the speed change mode switching method in accordance with which one of the first and the second fixed speed change mode areas the vehicle operation point locates in or moves to. | 06-30-2011 |
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 |
Patent application number | Description | Published |
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 |
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 |
20140129066 | CONTROL APPARATUS FOR HYBRID VEHICLE - A control apparatus for a hybrid vehicle which is provided with an engine and an electric motor each functioning as a drive power source, and a clutch selectively connecting the engine and the electric motor to each other, said control apparatus being configured to switch a drive mode of the hybrid vehicle between an engine-driven running with at least said engine of the drive power source consisting of the engine and said electric motor used as the drive power source and with said clutch placed in a fully engaged state, and an electric-motor-driven running with said electric motor used as the drive power source and with said clutch placed in a released state, includes: a clutch temperature calculating portion configured to calculate, during said engine-driven running, an estimated temperature of said clutch upon a next engaging action of the clutch for switching of said drive mode from the following electric-motor-driven running back to the engine-driven running; and a switching control portion configured to continue the engine-driven running while inhibiting a releasing action of said clutch if said estimated temperature of the clutch calculated by said clutch temperature calculating portion is not lower than a predetermined overheat threshold value. | 05-08-2014 |
20140162839 | CONTROL DEVICE OF HYBRID VEHICLE - In a case of engagement when a clutch K | 06-12-2014 |
20140163840 | DEVICE FOR CONTROLLING VEHICLE ENGINE STARTING - A vehicle engine start control device in a vehicle includes a direct injection engine directly injecting fuel into a cylinder as a drive power source for running. The vehicle engine start control device is configured to start rotation of the direct injection engine when the direct injection engine is started from a stop state of the direct injection engine in which a first cylinder of a plurality of cylinders is in an expansion stroke while a second cylinder next to the first cylinder in an ignition order is located at a top dead center. Further, the device directly injects fuel into the second cylinder and ignites the fuel while a piston of the second cylinder is moving away from the top dead center toward a bottom dead center in a first expansion stroke in the second cylinder after the start of the rotation. | 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 |
20140172219 | ENGINE STOP CONTROL DEVICE FOR HYBRID VEHICLE - An engine stop control device of a hybrid vehicle has a direct injection engine directly injecting fuel into a cylinder, a clutch connecting/disconnecting the direct injection engine to/from a power transmission path, and a rotating machine at least acting as an electric motor. The hybrid vehicle uses the direct injection engine and the rotating machine as a drive power source for running, and the once interrupted clutch is temporarily connected at the time of the engine stop or immediately after the engine stop when the clutch is interrupted to stop the direct injection engine during running. | 06-19-2014 |
20140180522 | HYBRID VEHICLE CONTROL DEVICE - A control device of a hybrid vehicle has an engine and an electric motor used as a drive source and an electric storage device supplying electric energy to the electric motor, the control device of a hybrid vehicle selectively performing electric motor running using the electric motor as the drive source and engine running using the engine as the drive source, the control device being configured to raise a rotation speed of the engine by directly injecting fuel into a cylinder of the engine and causing an explosion when the engine is started, and after raising the rotation speed of the engine, the electric motor assisting the raising of the rotation speed of the engine, the control device including a clutch mechanism disposed between the engine and the electric motor, the clutch mechanism separating the engine and the electric motor from each other during the electric motor running, after raising the rotation speed of the engine, the electric motor assisting the raising of the rotation speed of the engine via the clutch mechanism to provide a start assist, the control device being configured to synchronize a rotation speed of the clutch mechanism after the start of the engine is completed, and after the synchronization is completed, the clutch mechanism being engaged. | 06-26-2014 |
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 |
20140244091 | VEHICLE DRIVE APPARATUS CONTROL APPARATUS - A control device of a vehicle drive device comprises an engine and an electric motor acting as a drive force source for running, a mechanical oil pump driven by at least one of the engine and the electric motor, a hydraulic power transmission device transmitting power of the engine and the electric motor to drive wheels, and an engagement device interposed between the hydraulic power transmission device and the drive wheels, the engagement device transmitting power input from the hydraulic power transmission device to the drive wheels when engaged, if the electric motor drives the mechanical oil pump while an operation of the engine is stopped, the control device executing neutral control of putting the engagement device into a slip state or a released state to suppress power transmission between the hydraulic power transmission device and the drive wheels, the hydraulic power transmission device including a lockup clutch mechanically coupling input and output members of the hydraulic power transmission device when engaged, the lockup clutch being engaged during executing of the neutral control, and if it is determined that the engine is likely to be restarted after a stop of operation while the vehicle is kept stopped, the lockup clutch being released. | 08-28-2014 |
20140249710 | ENGINE START CONTROL APPARATUS FOR HYBRID VEHICLE - A control device of a hybrid vehicle for starting an engine, the hybrid vehicle has a direct injection engine directly injecting fuel into a cylinder, a clutch connecting/disconnecting the direct injection engine to/from a power transmission path, and a rotating machine acting at least as an electric motor, the hybrid vehicle is configured to run by concurrently or separately using the direct injection engine and the rotating machine as a drive force source, the hybrid vehicle is configured to execute ignition start of the direct injection engine in which the direct injection engine is started by injecting and igniting fuel in a cylinder with a piston stopped in an expansion stroke during stop of the direct injection engine, and an engine torque is reduced based on a speed difference between an engine rotation speed and a rotation speed of a power transmission path side across the clutch when the speed difference is smaller as compared to the speed difference is larger such that the engine torque is reduced as the engine rotation speed comes closer to the rotation speed of the power transmission path side in a process of increasing the engine rotation speed, when the clutch is connected after the ignition start of the direct injection engine is performed. | 09-04-2014 |
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 |
20140303823 | HYBRID VEHICLE CONTROL APPARATUS - The hybrid vehicle has a motor generator disposed in a power transmission path and performing as an electric motor and an electric generator, a direct injection engine configured to execute an ignition start in which fuel is injected into any cylinder with a piston stopped in an expansion stroke and ignited for the start, and an engine connecting/disconnecting clutch of friction engagement type directly connecting and interrupting the direct injection engine to/from the motor generator. The control device of the hybrid vehicle has an MG creep mode in which the motor generator is used as an electric motor and rotationally driven at a predetermined first rotation speed to generate a creep torque while the engine connecting/disconnecting clutch is interrupted and the direct injection engine is stopped, and a charging creep mode in which the direct injection engine is operated at a predetermined second rotation speed higher than the first rotation speed to generate the creep torque with the motor generator used as an electric generator to charge a battery while the engine connecting/disconnecting clutch is connected, the control device performs the ignition start of the direct injection engine during the MG creep mode and provides connection control of the engine connecting/disconnecting clutch after a rotation speed of the direct injection engine exceeds a rotation speed of the motor generator to raise the rotation speed of the motor generator and directly connect the direct injection engine to the motor generator when a transition is made from the MG creep mode to the charging creep mode. | 10-09-2014 |
20150027273 | VEHICLE DRIVE DEVICE - A vehicle drive device in which a friction engagement device, a rotary electric machine, and a speed change device are provided on a power transfer path that connects between an input member drivably coupled to an internal combustion engine and an output member drivably coupled to wheels, the elements provided in this order from the input member side. The disclosed combination achieves a variety of benefits, such as suppressing a steep rise in hydraulic pressure due to pressure discharged from a hydraulic control device, while maintaining a decreased size. | 01-29-2015 |
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 |
20150072829 | VEHICLE CONTROL APPARATUS - A control device of a vehicle including an engine, an electric motor, and a clutch configured to achieve a mechanically directly-coupled state of a power transmission path between the engine/the electric motor and drive wheels, the control device causing the clutch to be slip-engaged or released when the engine is started during motor running in which only the electric motor is used as a drive force source for running with the clutch engaged, the control device being configured such that when the clutch is engaged during the motor running, an engagement pressure is made lower than an engagement pressure when the clutch is engaged during engine running in which at least the engine is used as a drive force source for running, and in the case of running with the clutch engaged, the engagement pressure of the clutch is constantly adjusted based on output torque of the electric motor during the motor running, while the engagement pressure of the clutch is not adjusted during the engine running. | 03-12-2015 |