JP2011255706A - Drive device for hybrid vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a drive device for hybrid vehicle, which is equipped with an internal combustion engine and at least one rotating electric machine and improves energy efficiency by charging an energy source of the rotating electric machine during both braking and running.SOLUTION: A sun gear (a first element) 22a composed of any of three elements of a planetary gear mechanism 22 is connected to a first input shaft 14 into which a driving force output from an internal combustion engine (an engine) 12 is input, a ring gear (a second element) 22c is connected to a second input shaft 20 into which a driving force output from a motor generator 16 is input, and a carrier (a third element) 22b is connected to an output shaft 24. Between the first input shaft 14 and the second input shaft 20, there are provided a speed-increasing mechanism 26 which increases the rotation input from the first input shaft 14 for transmission and 2WAYC (fixing means) 44 which can fix the sun gear 22a.

Description

  The present invention relates to a drive device for a hybrid vehicle.

A technique described in Patent Document 1 is known as a drive device for a hybrid vehicle. In the technology, an internal combustion engine, a rotating electrical machine, a transmission, and a planetary gear mechanism are provided, the internal gear engine is an element that stops in an underdrive state of the planetary gear mechanism; The output shaft of the transmission is configured to be connected.

JP-A-5-319110

  Although the technology described in Patent Document 1 is configured as described above, it is intended to increase driving force when traveling in urban areas and increase cruising distance when traveling in suburbs. Since charging to the energy source of the rotating electrical machine is performed only during regeneration at the time of deceleration, the cruising distance cannot be made sufficiently large, which is inconvenient in terms of energy efficiency.

  Accordingly, an object of the present invention is to solve the above-mentioned disadvantages and to provide an internal combustion engine and at least one rotating electrical machine, and to charge the energy source of the rotating electrical machine during traveling as well as during deceleration to improve energy efficiency. An object of the present invention is to provide a drive device for a hybrid vehicle.

  In order to achieve the above object, according to a first aspect of the present invention, there is provided a first drive source composed of an internal combustion engine, a first input shaft to which a drive force output from the first drive source is input, and at least one A second drive source comprising a plurality of rotating electrical machines, a second input shaft to which a drive force output from the second drive source is input, and at least three elements comprising a sun gear, a carrier, and a ring gear, 1. Driving of a hybrid vehicle including a planetary gear mechanism that inputs and outputs the driving force of the first and second driving sources from a second input shaft, and an output shaft that connects the output of the planetary gear mechanism to an axle. In the apparatus, a first element composed of any one of the three elements of the planetary gear mechanism is used as the first input shaft, a second element is used as the second input shaft, and a third element is used as the output shaft. Connecting the first input shaft and the second input shaft. Wherein with the first and accelerating the rotation input from the input shaft providing a speed increasing mechanism that transmits and composed as provided fixing means fixable to the first element.

  In the hybrid vehicle drive device according to claim 2, the fixing means is constituted by a mechanical clutch.

  The hybrid vehicle drive device according to claim 3 is configured to connect an electric motor to the first input shaft.

  In the first aspect, the first element consisting of any one of the three elements of the planetary gear mechanism is connected to the first input shaft to which the driving force output from the first driving source consisting of the internal combustion engine is input. The second element is connected to a second input shaft to which a driving force output from a second drive source made of a rotating electric machine is input, and the third element is connected to an output shaft that connects the output of the planetary gear mechanism to the axle, A speed increasing mechanism for increasing and transmitting the rotation input from the first input shaft is provided between the first input shaft and the second input shaft, and a fixing means capable of fixing the first element is provided. Therefore, the rotation output from the internal combustion engine during high-speed traveling can be accelerated by the speed increasing mechanism and input to the rotating electrical machine, thereby driving the rotating electrical machine to generate electric power. Can also charge the energy source of rotating electrical machines Thereby improving the efficiency.

  In addition, at the time of deceleration, it is driven from the side of the driving wheel attached to the axle, but since the third element of the planetary gear mechanism is connected to the output shaft that is connected to the axle, the driving force input from the driving wheel side is second. It is possible to transmit to the rotating electrical machine via the elements, and similarly, the rotating electrical machine can be driven to generate electric power.

  In the hybrid vehicle drive device according to claim 2, since the fixing means is constituted by a mechanical clutch, in addition to the above-described effects, the responsiveness can be improved as compared with the case of using a hydraulic clutch. it can.

  In the hybrid vehicle drive device according to claim 3, since the electric motor is connected to the first input shaft, the rotating electric machine fails or the remaining capacity of the energy storage source of the rotating electric machine is insufficient. In addition, the internal combustion engine can be started reliably.

1 is a schematic diagram schematically showing a drive device for a hybrid vehicle according to a first embodiment of the present invention. It is a skeleton figure of the drive device of the hybrid vehicle shown in FIG. FIG. 2 is an explanatory diagram showing a list of operations of the drive device according to the traveling state of the hybrid vehicle shown in FIG. 1. It is explanatory drawing which shows the action | operation of the drive device according to the driving | running | working state of the hybrid vehicle shown in FIG. 3 with a speed diagram. It is explanatory drawing which shows the action | operation of the drive device according to the driving | running | working state of the hybrid vehicle which concerns on 2nd Example of this invention with a velocity diagram. It is explanatory drawing which shows the action | operation of the drive device according to the driving state of the hybrid vehicle which concerns on 3rd Example of this invention with a velocity diagram.

  DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments for implementing a hybrid vehicle drive device according to the present invention will be described with reference to the accompanying drawings.

  FIG. 1 is a schematic diagram schematically showing a drive device for a hybrid vehicle according to a first embodiment of the present invention, FIG. 2 is a skeleton diagram of the drive device shown in FIG. 1, and FIG. 3 is a traveling state of the hybrid vehicle shown in FIG. It is explanatory drawing which shows operation | movement of the apparatus according to this as a list.

  In the following, reference numeral 10 denotes a drive device for a hybrid vehicle. The drive device 10 includes an internal combustion engine (first drive source) 12, a first input shaft 14 to which a driving force output from the internal combustion engine 12 is input, The rotary electric machine (second drive source) 16, the second input shaft 20 to which the driving force output from the rotary electric machine 16 is input, and the first and second input shafts 14 and 20 to the first and second drive sources 12. , 16 and a planetary gear mechanism 22 that inputs and outputs the driving force, and an output shaft 24 that couples the output of the planetary gear mechanism 22 to an axle to which driving wheels are attached via a reduction gear and a differential mechanism.

  Specifically, the driving device 10 includes an automatic transmission, and is mounted on a hybrid vehicle (not shown; hereinafter referred to as “vehicle”), and transmits driving force from the axle to the driving wheel by shifting by the internal combustion engine 12 and the rotating electrical machine 16. And drive the vehicle.

  The internal combustion engine (hereinafter referred to as “engine”) 12 is a spark ignition type gasoline engine using gasoline as fuel (or a compression ignition type diesel engine using light oil as fuel), and ignites (ignitions) a mixture of fuel and air. When done, it burns and drives a piston (not shown).

  The drive of the piston is converted into rotation of the crankshaft, and the output of the engine 12 output from the crankshaft is input to the drive device 10 via a flywheel (not shown) with a damper and the first input shaft 14.

  The rotating electrical machine 16 includes a DC brushless electric motor, and includes a stator 16a fixed to the apparatus housing 10a and a rotor 16b disposed so as to be relatively rotatable with respect to the stator 16a. It functions as a generator when it is rotated by the engine 12 (or drive wheels).

  Thus, in this specification, “rotary electric machine” 16 means a device having both functions of an electric motor (motor) and a generator (generator). Hereinafter, the rotating electrical machine 16 is referred to as a “motor / generator” and is denoted as “MG” in FIG.

  The planetary gear mechanism 22 includes at least three elements including a sun gear 22a, a pinion gear carrier (planetary carrier; hereinafter referred to as “carrier”) 22b, and a ring gear 22c. The carrier 22b includes a single pinion gear, and the rotation of the sun gear 22a is reversed by the pinion gear and transmitted to the ring gear 22c.

  As shown in the figure, the second input shaft 20 to which the driving force output from the motor / generator 16 is input is arranged in parallel and coaxially with the first input shaft 14.

  That is, the second input shaft 20 is passed through the rotor 16b of the motor / generator 16 and fixed to the rotor 16b by spline coupling or the like, and is output from the motor / generator 16 by rotating together with the rotor 16b of the motor / generator 16. A driving force is input. One end of the second input shaft 20 is connected to the ring gear 22c of the planetary gear mechanism 22, and a gear 20a is formed at the other end.

  A speed increasing mechanism 26 is disposed between the first input shaft 14 and the second input shaft 20.

  The speed increasing mechanism 26 is adjacent to the drive gear 26a fixed to the first input shaft 14, the driven gear 26b fixed to the intermediate shaft 30 and meshing with the drive gear 26a, and the driven gear 26b having a smaller number of teeth. It consists of a second drive gear 26c fixed to the intermediate shaft 30 and a gear 20a of the second input shaft 20 that meshes with the second drive gear 26c.

  The driven gear 26 b is fixed to the second input shaft 20 via an OD (Over Drive) clutch 32. The OD clutch 32 is a hydraulic clutch that is turned on when hydraulic pressure is supplied, and engages (fixes) the driven gear 26b to the intermediate shaft 30.

  When the OD clutch 32 is turned on and the driven gear 26b is engaged with the intermediate shaft 30, the output of the engine 12 is transmitted through the first input shaft 14, the drive gear 26a, the driven gear 26b, the second drive gear 26c, and the gear 20a. The motor / generator 16 is driven by being connected to the generator 16.

  The drive device 10 includes an EOP (electric oil pump) 34. The EOP 34 operates when its electric motor (not shown) is energized, pumps hydraulic oil (oil) from a reservoir (not shown), supplies it as an oil pressure to the OD clutch 32, and lubricates the planetary gear mechanism 22 and the like. To supply.

  Of the three elements of the planetary gear mechanism 22, when the sun gear (S) 22a is the first element, the ring gear (R) 22c is the second element, and the carrier (C) 22b is the third element, as shown in the figure The sun gear 22 a is connected to the first input shaft 14, the ring gear 22 c is connected to the second input shaft 20, and the carrier 22 b is connected to the output shaft 24.

  Thus, the sun gear 22a is connected to the first input shaft 14 to which the driving force of the engine 12 is input and is rotated by the driving force of the engine 12. The ring gear 22c is connected to the second input shaft 20 to which the driving force of the motor / generator 16 is input and is rotated by the driving force of the motor / generator 16 and drives the motor / generator 16 according to the running state. To generate electricity.

  The planetary gear mechanism 22 has three elements including a sun gear 22a, a carrier 22b, and a ring gear 22c. In this specification, the first element, the second element, and the third element do not necessarily include the sun gear 22a, the ring gear 22c, and the carrier 22b. It is not shown. Previously, “the first element consisting of any of the three elements is described as“ ... ”means that.

  The ring gear 22 c of the planetary gear mechanism 22 is connected to the rotor 16 b of the motor / generator 16 via the second input shaft 20 and is also a speed increasing mechanism 26 disposed between the first input shaft 14 and the second input shaft 20. It is connected to the engine 12 via.

  Accordingly, the ring gear 22c of the planetary gear mechanism 22 is rotated by the driving force when the driving force is input from the motor / generator 16. The rotor 16b of the motor / generator 16 is rotated by a driving force input from the engine 12 via the speed increasing mechanism 26 when the OD clutch 32 is turned on.

  The motor / generator 16 operates as a generator according to the rotation of the rotor 16b to generate electric power. The generated electric power (electric energy) is stored in a battery (energy storage source) 40 via a PDU (power drive unit) 36.

  The first input shaft 14, the second input shaft 20, and the intermediate shaft 30 are rotatably supported on the apparatus housing 10a via bearings 42, and the first input shaft 14 is electromagnetic 2WAYC (two-way clutch, mechanical type). Clutch) 44 is arranged.

  The 2WAYC 44 includes two 1WAYCs (one-way clutches). When the solenoid is energized, the first input shaft 14 is fixed to the device housing 10a to lock its rotation, in other words, when it is energized. Realizes a one-way function with forward and reverse rotation.

  As shown in FIG. 1, the engine 12 includes a starter motor (electric motor) 12a. The starter motor 12a operates by being supplied with electric energy from a battery (energy storage source) 12b of the engine 12, and cranks the engine 12. That is, the starter motor 12 a is connected to the first input shaft 14.

  Although not shown, a vehicle speed sensor is arranged near the drive shaft of the vehicle to output a signal indicating the vehicle speed, and a voltage / current sensor is arranged in the battery 40 to store the SOC of the electric power stored in the battery 36. A signal indicating (State of Charge) is output. A rotational speed sensor composed of a resolver is disposed on the second input shaft 20 and outputs a signal indicating the rotational speed of the second input shaft 20.

  The outputs of these sensors are sent to an ECU (Electronic Control Unit; hereinafter referred to as “MOTECU”) 46 that controls the operation of the motor / generator 16 and the like. The MOTECU 46 includes a microcomputer.

  Further, as shown in FIG. 1, there are provided an ENGECU 50 for controlling the operation of the engine 12 and a BAT ECU 52 for controlling the operation of the battery 40, which are similarly composed of an electronic control unit including a microcomputer. In FIG. 2, illustration of the MOTECU 46 and the like is omitted.

  The MOTECU 46, the ENGECU 50, and the BAT ECU 52 are connected via a bus 54 and configured to be able to communicate with each other. The MOTECU 46 receives an engine speed, that is, a signal indicating the speed of the first input shaft 14 from the ENGECU 50.

  The MOTECU 46 controls the operation of the motor generator 16 and the PDU 36 according to the running state of the vehicle, drives and stops the EOP 34, and controls the engagement (on) and release (off) operations of the OD clutch 32.

  The MOTECU 46 controls the operation of the 2WAYC 44 by exciting and demagnetizing the solenoid. Specifically, the MOTECU 46 performs FWD-D shown in FIG. 3 (during forward travel in the D range), that is, when the motor / generator 16 is driven to travel forward, the motor / generator 16 causes the planetary gear mechanism 22 to When the ring gear 22c rotates in the forward direction, the sun gear 22a rotates in reverse. Therefore, the solenoid is excited to lock the reverse rotation of the sun gear 22a.

  Further, when the ring gear 22c of the planetary gear mechanism 22 is reversely rotated by the motor / generator 16 during the RVS (reverse travel), the MOTECU 46 excites the sun gear 22a so that the solenoid is excited to lock the forward rotation of the sun gear 22a. Realize a fixed ratio. Thus, the MOTECU 46 functions as a control device for the drive device 10 of the hybrid vehicle.

  FIG. 4 is an explanatory diagram showing the operation of the drive device 10 by the MOTECU 46 in accordance with the traveling state of the hybrid vehicle shown in FIG.

  In the velocity diagram of FIG. 4, the three vertical axes correspond to the three elements of the planetary gear mechanism 22, that is, the sun gear (22 a), the carrier (22 b), and the ring gear (22 c). The number of rotations in the FWD-D (forward) direction and the downward length indicate the number of rotations in the RVS (reverse) direction.

  The distance between the SCs is proportional to the reciprocal of the number of teeth of the sun gear 22a, and the distance between the CRs is proportional to the reciprocal of the number of teeth of the ring gear 22c. Note that the fact that the carrier 22b is shown in the center means that the rotation of the sun gear 22a and the ring gear 22c is reversed by the carrier 22b.

  With reference to FIG. 3 and FIG. 4, the operation of the drive device 20 by the MOTECU 46 according to the traveling state of the vehicle will be described.

  Outlined with reference to FIG. 4, the MOTECU 46 drives the motor / generator 16 to start the vehicle with the output of the motor / generator 16 as indicated by “EV traveling” in the figure. The engine 12 is started by the generator 16 and the electric continuously variable transmission control is performed so as to shift to the traveling indicated as “hybrid traveling” in the drawing and to obtain a desired ratio (speed ratio).

  This will be described in detail below.

  In FWD-D (during forward travel), the MOTECU 46 drives the motor / generator 16 as described above, and excites the 2WAYC 44 connected to the sun gear 22a (shown by a circle) to lock the reverse rotation described above. The vehicle is started by the output of the generator 16. In order to save electric energy, the excitation of the 2WAYC 44 is short.

  Next, when the traveling speed of the vehicle reaches a certain vehicle speed, the MOTECU 46 supplies hydraulic pressure to the OD clutch 32 to engage it, and transmits torque from the motor / generator 16 to the engine 12 via the speed increasing mechanism 26. Start.

  Next, the MOTECU 46 controls the motor / generator 16 to decelerate so that the ring gear rotational speed is determined by the engine rotational speed and the carrier rotational speed.

  In this case, the inertia of each part after the engine 12 is started becomes vehicle body> engine 12> motor / generator 16, and the change in the rotational speed of the portion where the inertia is small becomes large. Therefore, the rotational speed of the motor / generator 16 is shown in FIG. It changes as shown by the broken line a.

  The operation of the driving device 10 in the above-described FWD-D (forward travel) is the same in the case of RVS (reverse travel).

  Further, the MOTECU 46 increases the rotational speed of the motor / generator 16 to the OD side when the vehicle speed increases and becomes higher. At this time, when the SOC (remaining capacity) of the battery 40 is low, the MOTECU 46 engages the OD clutch 32 in the vicinity of the OD fixed ratio (for example, 0.7).

  As a result, the rotation of the engine 12 is accelerated by the speed increasing mechanism 26 and transmitted to the motor / generator 16 via the second input shaft 20. At this time, if the increased rotation of the engine 12 exceeds the OD equivalent value, it is used to drive the motor / generator 16 to generate power.

  That is, by providing the speed increasing mechanism 26, the rotation output from the engine 12 during high speed traveling can be increased by the speed increasing mechanism 26 and input to the motor generator 16, thereby driving the motor generator 16. Can be generated.

  Further, at the time of deceleration, for example, at the time of braking, the engine 12 is stopped and F / C (fuel cut) is performed, and the planetary gear mechanism 22 is driven from the drive wheel side attached to the axle.

  In that case, since the carrier 22c of the planetary gear mechanism 22 is connected to the output shaft 24 that is connected to the axle, the driving force input from the driving wheel side can be transmitted to the motor / generator 16 via the carrier 22c. Accordingly, the motor / generator 16 can be similarly driven to generate electric power.

  In FIG. 3, power generation in the N range is an emergency case in which the remaining capacity SOC of the battery 40 becomes zero or almost zero. At that time, the driver is given a foot Brk (brake) or P-Brk (parking brake) (see FIG. 3). While the engine 12 is operated, the engine 12 is driven, the speed increasing mechanism 26 increases the speed, and the motor / generator 16 is driven to generate electric power.

  In addition, by operating the starter motor (electric motor) 12a, the engine 12 can be reliably started even when the motor / generator 16 fails or when the remaining capacity SOC of the battery 40 of the motor / generator 16 is insufficient. Can do.

  In the hybrid vehicle driving apparatus 10 according to this embodiment, a driving force output from the engine 12 is input to the sun gear (first element) 22a including any one of the three elements of the planetary gear mechanism 22. The ring gear (second element) 22c is input to the first input shaft 14, the second input shaft 20 to which the driving force output from the motor / generator 16 is input, and the carrier (third element) 22b is output to the output shaft 24. A speed increasing mechanism 26 that increases the speed of rotation input from the first input shaft 14 and transmits the rotation is provided between the first input shaft 14 and the second input shaft 20, and 2WAYC that can fix the sun gear 22a. Since the (fixing means) 44 is provided, the rotation output from the engine 12 during high-speed traveling or the like is accelerated by the speed increasing mechanism 26 and input to the motor / generator 16. By driving the motor generator 16 can be generated, thus it is possible to improve the energy efficiency can be charged to the energy source of the motor generator 16 also during running in addition to the deceleration.

  In addition, when the vehicle is decelerated, it is driven from the side of the drive wheel attached to the axle, but since the carrier 22b of the planetary gear mechanism 22 is connected to the output shaft 24 that is connected to the axle, the driving force input from the drive wheel side is supplied to the planetary gear. It can be transmitted to the motor / generator 16 via the mechanism 22 and the second input shaft 20, and similarly, the motor / generator 16 can be driven to generate electric power.

  Further, since the engine 12 is started after the motor / generator 16 is driven to start, the fuel consumption can be reduced as compared with the case where the engine 12 is started at the time of starting to run.

  Further, since the motor / generator 16 is driven to travel backward, the fuel consumption can be reduced as compared with the case where the engine 12 travels. Furthermore, since the vehicle speed during reverse travel is generally low and the vehicle starts from a stopped state, fuel consumption can be reduced as compared with the case where the engine 12 travels. Further, since the motor / generator 16 is driven forward and travels in the same direction except for the rotation direction of the motor / generator 16, the vehicle turns smoothly.

  Further, since the 2WAYC 44 is constituted by a mechanical clutch, the responsiveness can be improved as compared with the case of using a hydraulic clutch. Furthermore, compared to the case of using 1WAYC (one-way clutch), the RVS can be driven at a stable ratio.

  Since the starter motor (electric motor) 12a to which electric energy is supplied from the battery 12b of the engine 12 is connected to the first input shaft 14, the motor / generator 16 fails or the battery 40 of the motor / generator 16 is connected. Even when the remaining capacity SOC is insufficient, the engine 12 can be reliably started.

  FIG. 5 is an explanatory diagram showing the operation of the driving device 10 according to the traveling state of the hybrid vehicle according to the second embodiment of the present invention in a speed diagram.

  The description will focus on the differences from the first embodiment. In the second embodiment, the motor / generator 16 is connected to the carrier 22b of the planetary gear mechanism 22 and the ring gear 22c is connected to the output shaft 24. I tried to do it.

  In the driving apparatus 10 for the hybrid vehicle according to the second embodiment, a driving force output from the engine 12 is input to the sun gear (first element) 22a including any one of the three elements of the planetary gear mechanism 22. The carrier (second element) 22b is input to the first input shaft 14, the second input shaft 20 to which the driving force output from the motor / generator 16 is input, and the ring gear (third element) 22c is output to the output shaft 24. And a speed increasing mechanism 26 that speeds up and transmits the rotation input from the first input shaft 14 between the first input shaft 14 and the second input shaft 20, and can fix the sun gear 22a. Since the 2WAYC (fixing means) 44 is provided, the rotation output from the engine 12 is similarly accelerated by the speed increasing mechanism 26 and input to the motor / generator 16 during high speed traveling, etc. Accordingly by driving the motor generator 16 can be generated, thus it is possible to improve the energy efficiency can be charged to the energy source of the motor generator 16 also during running in addition to the deceleration.

  Further, during deceleration, the driving force input from the driving wheel side can be transmitted to the motor / generator 16 via the planetary gear mechanism 22 and the second input shaft 20, and the motor / generator 16 is similarly driven to generate electric power. be able to. The remaining configuration and effects are not different from those of the first embodiment.

  FIG. 6 is an explanatory diagram showing the operation of the drive device 10 according to the traveling state of the hybrid vehicle according to the third embodiment of the present invention in a speed diagram.

  The description will focus on differences from the first embodiment. In the third embodiment, the engine 12 is connected to the ring gear 22c of the planetary gear mechanism 22, and the motor / generator 16 is connected to the sun gear 22a. The carrier 22b is connected to the output shaft 24.

  In the driving apparatus 10 for the hybrid vehicle according to the third embodiment, a driving force output from the engine 12 is input to the ring gear (first element) 22c including any one of the three elements of the planetary gear mechanism 22. The sun gear (second element) 22a is input to the first input shaft 14, the driving force output from the motor / generator 16 is input to the second input shaft 20, and the carrier (third element) 22b is output to the output shaft 24. And a speed increasing mechanism 26 that speeds up and transmits the rotation input from the first input shaft 14 between the first input shaft 14 and the second input shaft 20, and can fix the sun gear 22a. Since the 2WAYC (fixing means) 42 is provided, the rotation output from the engine 12 is similarly accelerated by the speed increasing mechanism 26 and input to the motor / generator 16 at the time of high speed traveling, etc. Accordingly by driving the motor generator 16 can be generated, thus it is possible to improve the energy efficiency can be charged to the energy source of the motor generator 16 also during running in addition to the deceleration.

  Further, during deceleration, the driving force input from the driving wheel side can be transmitted to the motor / generator 16 via the planetary gear mechanism 22 and the second input shaft 20, and the motor / generator 16 is similarly driven to generate electric power. be able to. The remaining configuration and effects are not different from those of the first embodiment.

  As described above, in the first to third embodiments, the first drive source including the engine (internal combustion engine) 12 and the first input shaft 14 to which the drive force output from the first drive source is input. A second drive source composed of at least one motor / generator (rotary electric machine) 16, a second input shaft 20 to which a drive force output from the second drive source is input, at least a sun gear, a carrier, and a ring gear. A planetary gear mechanism 22 that inputs and outputs the driving force of the first and second drive sources from the first and second input shafts 14 and 20, and the planetary gear mechanism 22 In a hybrid vehicle drive device 10 including an output shaft 24 that connects an output to an axle, a first element that is one of the three elements of the planetary gear mechanism 22 is connected to the first input shaft 14 and a second Elements of the second input A third element is connected to the shaft 20 to the output shaft 24, and the rotation input from the first input shaft is accelerated and transmitted between the first input shaft 14 and the second input shaft 20. The speed increasing mechanism 26 is provided, and a 2WAYC (fixing means) 44 capable of fixing the first element is provided.

  The 2WAYC (fixing means) 44 is constituted by a mechanical clutch.

  Further, a starter motor (electric motor) 12 a is connected to the first input shaft 14.

  In the above description, the rotation of the sun gear 22a of the planetary gear mechanism 22 is locked using the 2WAYC 44. However, instead of the 2WAYC44, two 1WAYCs (one-way clutches) may be used, or a brake clutch may be used.

  Further, although the starter motor (electric motor) 12a is used, a motor / generator (rotary electric machine) may be used instead. Further, although the energy source of the starter motor 12a is the battery 12b of the engine 12, the battery 40 of the motor / generator 16 may be used.

  DESCRIPTION OF SYMBOLS 10 Drive apparatus of hybrid vehicle, 12 Internal combustion engine (engine), 12a Starter motor (electric motor), 12b Battery (energy storage source), 14 1st input shaft, 16 Rotating electric machine (motor generator), 20 2nd input shaft, 22 planetary gear mechanism, 22a sun gear (S), 22b carrier (C), 22c ring gear (R), 24 output shaft, 26 speed increasing mechanism (26a drive gear, 26b driven gear, 26c second driven gear, 20a gear), 30 Intermediate shaft, 32 OD clutch, 34 EOP (electric oil pump), 36 PDU, 40 battery (energy storage source), 44 2WAYC (fixing means), 46 MOTECU, 50 ENGECU, 52 BAT ECU, 54 bus

Claims (3)

  A first drive source comprising an internal combustion engine; a first input shaft to which a drive force output from the first drive source is input; a second drive source comprising at least one rotating electrical machine; and the second drive source. A first input shaft to which the driving force output from the first input shaft is input, and at least three elements including a sun gear, a carrier, and a ring gear, and driving the first and second drive sources from the first and second input shafts. In a hybrid vehicle drive device including a planetary gear mechanism that inputs and outputs force, and an output shaft that couples the output of the planetary gear mechanism to an axle, a driving device that includes any one of the three elements of the planetary gear mechanism. The first element is connected to the first input shaft, the second element is connected to the second input shaft, the third element is connected to the output shaft, and between the first input shaft and the second input shaft. Accelerates and transmits rotation input from the first input shaft That together provide a speed increasing mechanism, the driving apparatus for a hybrid vehicle, characterized in that a fixing means fixable to the first element.   2. The drive apparatus for a hybrid vehicle according to claim 1, wherein the fixing means comprises a mechanical clutch.   The hybrid vehicle drive device according to claim 1, wherein an electric motor is connected to the first input shaft.

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