JP2006211900A - Hybrid power driving mechanism - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a hybrid power driving mechanism with a structure that is simplified, reduced weight and cost, and in addition, capable of improving fuel economy. <P>SOLUTION: The hybrid power driving mechanism is constituted of an engine power source motive shaft 1A, a driven shaft 1B, a mechanism 1 for both the generator and the motor, consisting of a stator equivalent part 1C and a rotor equivalent part 1D, a motor serving also as a generator 2, consisting of a stator equivalent part 2A and a rotor equivalent part 2B, a storage battery 3, and an apparatus 4 for stopping the rotation of the engine power source motive shaft, when an engine is not in operation. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a hybrid power transmission mechanism, and more particularly to a hybrid power transmission mechanism applicable to automobiles, railway vehicles, ships, and the like.

  Various conventional hybrid power transmission mechanisms from high to low fuel efficiency have been proposed and have recently been put into practical use, for example, as hybrid power vehicles. What is put into practical use as a hybrid-powered vehicle is an example of a high fuel efficiency performance. Specifically, it is used to transmit power to a power generation mechanism between a power source driving shaft and a driven shaft. A power split mechanism configured by combining gear members is provided.

  By the way, when the power split mechanism is provided between the motor power source driving shaft and the driven shaft as in the conventional hybrid power transmission mechanism, the structure is complicated, the weight is increased, and the cost is increased. There was a problem.

  In view of the problems of the hybrid power transmission mechanism provided with the conventional power split mechanism, the present invention can simplify the structure, reduce the weight, reduce the cost, and further improve the fuel efficiency. An object of the present invention is to provide a hybrid power transmission mechanism.

  In order to achieve the above object, the hybrid power transmission mechanism of the present invention has a rotational speed between the motor power source driving shaft and the driven shaft without using a power split mechanism between the motor power source driving shaft and the driven shaft. It is characterized by providing a power generation mechanism that can generate power with a difference.

  In this case, by generating power with the difference in rotational speed between the motor power source driving shaft and the driven shaft, the shaft torque required for the power generation is generated equally between the motor power source driving shaft and the driven shaft. Can do.

  Further, the stator equivalent part of the power generation mechanism can be fixed to the motor power source driving shaft and the rotor equivalent part to the driven shaft.

  Further, the rotor equivalent portion of the power generation mechanism can be fixed to the motor power source driving shaft, and the stator equivalent portion can be fixed to the driven shaft.

  Further, the power generation mechanism can be a power generation mechanism / electric mechanism, and the stator equivalent portion of the power generation mechanism / electric mechanism can be fixed to the motor power source driving shaft and the rotor equivalent portion to the driven shaft.

  Further, the power generation mechanism may be a power generation mechanism / electric mechanism, and the rotor equivalent portion of the power generation mechanism / electric mechanism may be fixed to the motor power source driving shaft and the stator equivalent portion to the driven shaft.

  An electric motor / generator linked to the driven shaft can be provided.

  Further, the generator / electric mechanism and the electric motor / generator are integrated so that the stator equivalent portion of the electric generator / electric mechanism fixed to the driven shaft is also used as the rotor equivalent portion of the electric motor / generator. be able to.

  Moreover, a permanent magnet can be used for the rotor equivalent part of the said motor / generator.

In the hybrid power transmission mechanism of the present invention, power is generated with a difference in rotational speed between the motor power source driving shaft and the driven shaft without using a power split mechanism between the motor power source driving shaft and the driven shaft. Since the power generation mechanism is provided, when the motor is operated, the shaft torque required for the power generation is generated by generating the power with the rotational speed difference between the motor power source driving shaft and the driven shaft. It can be generated equally on the driving shaft and the driven shaft.
In this case, the shaft torque required for the power generation, that is, the power generation load shaft torque generated on the motor power source driving shaft and the driven shaft changes the power generated by the power generation, that is, the power generation load power exerted on the power generation mechanism. Can be controlled.
As a result, as the rotational speed of the motor power source driving shaft is increased to increase the rotational speed difference between the motor power source driving shaft and the driven shaft, the power generated by the power generation mechanism can be increased and It is possible to increase the power generation load shaft torque generated in the power source driving shaft and the driven shaft.
In other words, the power generation mechanism of the hybrid power transmission mechanism can have a function of a variable transmission torque shaft coupling between the motor power source driving shaft and the driven shaft, more specifically, a function like a kind of clutch. it can.
According to the hybrid power transmission mechanism of the present invention, when the power generation mechanism generates power with the power of the motor that rotationally drives the motor power source driving shaft, shaft torque is generated in the driven shaft, which corresponds to the shaft torque. Accordingly, the electric capacity of the power generation mechanism (power generation mechanism / electric mechanism) can be reduced.
Further, since a power split mechanism such as a conventional hybrid power transmission mechanism is not required, the structure can be simplified, the weight can be reduced, the cost can be reduced, and the fuel efficiency can be improved.

  Further, by providing the storage battery, a part or all of the generated load power exerted on the power generation mechanism can be stored in the storage battery.

In addition, by providing an electric motor / generator linked to the driven shaft, a part or all of the generated load power on the electric power generation mechanism is supplied to the electric motor / generator, and both the electric power generation mechanism and the electric motor / generator are driven. A shaft torque can be generated on the shaft, and thereby a larger shaft torque can be generated on the driven shaft.
In this case, the power supplied from the generator mechanism to the motor / generator increases as the rotational speed of the motor power source driving shaft is increased to increase the rotational speed difference between the motor power source driving shaft and the driven shaft. Therefore, it is possible to increase both the power generation load shaft torque generated by the power generation mechanism on the driven shaft and the shaft torque generated by the motor / generator on the driven shaft.
Thereby, a larger shaft torque can be generated in the driven shaft.
Also, in this case, the power generation load shaft torque generated on the motor power source driving shaft and the driven shaft can be reduced to zero by setting the power generation load power applied to the power generation mechanism to zero. The power of the storage battery can be supplied to the machine, and the shaft torque in the direction opposite to the rotational direction of the motor power source driving shaft can be generated on the driven shaft (in the case of an automobile, it can be moved backward when the motor is operating, A gear transmission can be dispensed with.)

  Further, by causing the power generation mechanism to function as an electric mechanism and supplying the electric power of the storage battery to the electric mechanism, the rotational speed of the driven shaft can be made higher than the rotational speed of the motor power source driving shaft (automobile) Speaking of which, it can be overdriven and high top.)

  In addition, this hybrid power transmission mechanism is of a type that cannot generate sufficient loadable shaft torque when the motor is at a low rotational speed, and generates a power generation load on the power generation mechanism when the motor is at a low rotational speed. By making the electric power zero or small, it is possible to increase the rotational speed of the motor without difficulty, thereby preventing the motor from becoming unreasonable. Equipment can be dispensed with.)

  Also, by supplying the electric power of the storage battery to the motor / generator and increasing the rotational speed of the driven shaft, the rotational speed of the motor can be increased reasonably, so that the motor does not become unreasonable. Can be made.

  In addition, by providing a gear-type transmission on the motor power source driving shaft or driven shaft, it is possible to prevent the motor from being forced and to generate a variety of shaft torques on the driven shaft. (Speaking of automobiles, it can be applied to racing cars and sports cars.)

  In addition, since this hybrid power transmission mechanism is provided with a power generation mechanism, when the motor is not operated, a motor power source driving shaft rotation stop device is provided when the motor is inactive, and the power generation mechanism functions as an electric mechanism. After that, by supplying the electric power of the storage battery to the electric mechanism, it is possible to generate axial torque in the rotational direction in the forward and reverse directions on the driven shaft.

  Further, by supplying the electric power of the storage battery to the motor / generator, it is possible to generate axial torque in the forward and reverse rotational directions on the driven shaft.

  Moreover, by supplying the electric power of the storage battery to the electric mechanism and the electric motor / generator, both the electric mechanism and the electric motor / generator can generate axial torques in the forward and reverse rotational directions on the driven shaft. (Since it is possible to move forward and backward in the case of an automobile, a gear transmission can be eliminated.)

Further, this hybrid power transmission mechanism, when starting the motor, when the driven shaft is rotating (running in the case of an automobile), when the motor is not operating, A shaft torque for starting the motor can be generated in the motor power source driving shaft by canceling the function and applying power to the power generation mechanism to generate power.
On the other hand, when the driven shaft is not rotating (stopping in the case of an automobile), the function of the motor power source driving shaft rotation stop device is canceled when the motor is inactive, and the power generation mechanism is made to function as an electric mechanism. In addition, by supplying the electric power of the storage battery to the electric mechanism, it is possible to generate shaft torque for starting the motor on the motor power source driving shaft.
As a result, the motor for exclusive use of starting the engine can be eliminated.

  Further, this hybrid power transmission mechanism reduces the rotational speed of the motor power source driving shaft when the driven shaft is rotating (running in the case of an automobile) and when the motor is operating. In addition, when the motor is not operated, the motor power source driving shaft rotation stop device is operated when the motor is not operated, and the generator mechanism is connected to the motor power source driving shaft and the driven shaft. By generating electric power with a difference in rotational speed, the kinetic energy of the driven shaft system can be reduced by an amount corresponding to the amount of electric power generated.

  Further, the kinetic energy of the driven shaft system can be reduced by causing the motor / generator to generate power.

In addition, the kinetic energy of the driven shaft system can be reduced by causing the power generation mechanism and the motor / generator to generate power simultaneously.
As a result, both the power generation mechanism and the motor / generator can function as a regenerative brake.

In addition, this hybrid power transmission mechanism integrates the generator / electric mechanism and the electric motor / generator, and the stator equivalent portion of the electric generator / electric mechanism fixed to the driven shaft is equivalent to the rotor of the electric motor / generator. Can also be used as a part.
Thus, the structure of the hybrid power transmission mechanism can be simplified by integrating the power generation mechanism / electric mechanism and the motor / generator.

Furthermore, this hybrid power transmission mechanism can use a permanent magnet for the rotor equivalent part of the motor / generator.
Thus, by using a permanent magnet for the rotor equivalent part of the motor / generator, the motor / generator can be an AC synchronous motor (DC brushless motor), and the structure of the hybrid power transmission mechanism can be further simplified. can do.

  DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the hybrid power transmission mechanism of the present invention will be described below with reference to the drawings of the embodiments shown in FIGS.

FIG. 1 shows a first embodiment of the hybrid power transmission mechanism of the present invention.
This hybrid power transmission mechanism includes a motor power source driving shaft 1A, a driven shaft 1B, a stator equivalent portion (referred to as an outer side portion in this specification) 1C and a rotor equivalent portion (in this specification, (Refers to the center side portion.) A generator / electric mechanism 1 comprising 1D, an electric motor / generator 2 comprising a stator equivalent part 2A and a rotor equivalent part 2B, a storage battery 3, and a motor power when the engine is inactive. The power source shaft rotation stopping device 4 is configured.
In this embodiment, the stator equivalent portion 1C of the power generation mechanism / electric mechanism 1 is fixed to the motor power source driving shaft 1A, and the rotor equivalent portion 1D is fixed to the driven shaft 1B.
Thereby, this hybrid power transmission mechanism can exhibit the function.
In this case, a permanent magnet can be used for the rotor equivalent portion 2B of the electric motor / generator 2, whereby the electric motor / generator can be an AC synchronous electric motor (DC brushless motor), and the hybrid power transmission mechanism The structure can be further simplified.

FIG. 2 shows a second embodiment of the hybrid power transmission mechanism of the present invention.
In this embodiment, the rotor equivalent part 1D of the power generation mechanism / electric mechanism 1 is fixed to the motor power source driving shaft 1A, and the stator equivalent part 1C is fixed to the driven shaft 1B.
Thereby, this hybrid power transmission mechanism can exhibit the function.
In this case, a permanent magnet can be used for the rotor equivalent portion 2B of the electric motor / generator 2, whereby the electric motor / generator can be an AC synchronous electric motor (DC brushless motor), and the hybrid power transmission mechanism The structure can be further simplified.

FIG. 3 shows an embodiment in which the hybrid power transmission mechanism of the present invention is applied to a four-wheeled vehicle 10.
The four-wheeled vehicle 10 includes a power generation mechanism / electric mechanism 1, an electric motor / generator 2, a storage battery 3, a motor power source driving shaft rotation restraint device 4, a motor 5, and a free shaft when the motor is inactive. The joint 6, the differential gear device 7, and the wheel 8 constitute the main part.
Thereby, it can be set as the hybrid power four-wheeled vehicle of two-wheel drive two-wheel regenerative braking.

FIG. 4 shows an embodiment in which the hybrid power transmission mechanism of the present invention is applied to a four-wheeled vehicle 10.
The four-wheeled vehicle 10 includes a power generation mechanism / electrical mechanism 1, an electric motor / generator 2 disposed so as to be interlocked with the wheels 8, a storage battery 3, and a motor power source driving shaft rotation stopping device when the motor is inactive. 4, the motor 5, the universal shaft joint 6, the differential gear device 7, and the wheel 8 constitute the main part.
Thereby, it can be set as the hybrid power four-wheeled vehicle of four-wheel drive four-wheel regenerative braking.

FIG. 5 shows an embodiment in which the hybrid power transmission mechanism of the present invention is applied to a four-wheeled vehicle 10.
The four-wheeled vehicle 10 includes a power generation mechanism / electrical mechanism 1, an electric motor / generator 2 disposed so as to be interlocked with the wheels 8, a storage battery 3, and a motor power source driving shaft rotation stopping device when the motor is inactive. 4, the motor 5, the universal shaft joint 6, the differential gear device 7, and the wheel 8 constitute the main part.
Thereby, it can be set as the hybrid power four-wheeled vehicle of four-wheel drive four-wheel regenerative braking.

FIG. 6 shows an embodiment in which the hybrid power transmission mechanism of the present invention is applied to a four-wheeled vehicle 10.
The four-wheeled vehicle 10 includes a power generation mechanism / electrical mechanism 1, an electric motor / generator 2 disposed so as to be interlocked with the wheels 8, a storage battery 3, and a motor power source driving shaft rotation stopping device when the motor is inactive. 4, the motor 5, the universal shaft joint 6, the differential gear device 7, the wheel 8, and the gear-type transmission device 9 (which can generate a variety of shaft torques on the driven shaft). It can be applied to racing cars and sports cars.)
Thereby, it can be set as the hybrid power four-wheeled vehicle of four-wheel drive four-wheel regenerative braking.

FIG. 7 shows a modified embodiment of the second embodiment of the hybrid power transmission mechanism of the present invention.
This hybrid power transmission mechanism is configured by integrating the power generation mechanism / electric mechanism 1 and the motor / generator 2 of the hybrid power transmission mechanism of the second embodiment, and includes a motor power source driving shaft 1A and a driven The shaft 1B, the rotor equivalent part 1D of the power generation mechanism / electric mechanism 1, the stator equivalent part 1C of the power generation mechanism / electric mechanism 1 (also used as the rotor equivalent part 2B of the motor / generator 2), and the motor / generator 2 The stator equivalent part 2A, the storage battery 3, and the motor power source driving shaft rotation stopping device 4 when the motor is inactive are configured.
As a result, the hybrid power transmission mechanism can achieve the above functions, and the structure of the hybrid power transmission mechanism can be simplified by integrating the power generation mechanism / electric mechanism 1 and the motor / generator 2. Can do.
In this case, a permanent magnet can be used for the rotor equivalent portion 2B of the motor / generator 2 (also used as the stator equivalent portion 1C of the power generation mechanism / electric mechanism 1), whereby the motor / generator 2 is AC-synchronized. An electric motor (DC brushless motor) can be used, and the structure of the hybrid power transmission mechanism can be further simplified.

  As mentioned above, although the hybrid power transmission mechanism of the present invention has been described based on a plurality of embodiments, the present invention is not limited to the configurations described in the above embodiments, and the configurations thereof are appropriately made within the scope not departing from the gist thereof. Can be changed.

  The hybrid power transmission mechanism of the present invention can be suitably used for automobile applications because the structure is simple, the weight is reduced, the cost is reduced, and the fuel efficiency can be improved. It can also be used for applications such as railway vehicles and ships.

It is explanatory drawing which shows 1st Example of the hybrid power transmission mechanism of this invention. It is explanatory drawing which shows 2nd Example of the hybrid power transmission mechanism of this invention. It is explanatory drawing which shows one Example which applied the hybrid power transmission mechanism of this invention to the four-wheeled vehicle. It is explanatory drawing which shows one Example which applied the hybrid power transmission mechanism of this invention to the four-wheeled vehicle. It is explanatory drawing which shows one Example which applied the hybrid power transmission mechanism of this invention to the four-wheeled vehicle. It is explanatory drawing which shows one Example which applied the hybrid power transmission mechanism of this invention to the four-wheeled vehicle. It is explanatory drawing which shows the deformation | transformation Example of 2nd Example of the hybrid power transmission mechanism of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Power generation mechanism and electric mechanism 1A Motor power source drive shaft 1B Drive shaft 1C Stator equivalent part 1D Rotor equivalent part 2 Motor / generator 2A Stator equivalent part 2B Rotor equivalent part 3 Storage battery 4 Activation when the motor is inactive Power source drive shaft rotation restraint device 5 Engine 6 Universal shaft joint 7 Differential gear device 8 Wheel 9 Gear-type transmission 10 Four-wheeled vehicle

Claims (10)

  Provided a power generation mechanism that can generate power with a difference in rotational speed between the motor power source driving shaft and the driven shaft without using a power split mechanism between the motor power source driving shaft and the driven shaft. Hybrid power transmission mechanism characterized by   By generating power with a difference in rotational speed between the motor power source driving shaft and the driven shaft, the shaft torque required for the power generation is generated equally between the motor power source driving shaft and the driven shaft. The hybrid power transmission mechanism according to claim 1.   The hybrid power transmission mechanism according to claim 1 or 2, wherein a stator equivalent portion of the power generation mechanism is fixed to an engine power source driving shaft and a rotor equivalent portion is fixed to a driven shaft.   3. The hybrid power transmission mechanism according to claim 1, wherein the rotor equivalent portion of the power generation mechanism is fixed to the motor power source driving shaft and the stator equivalent portion is fixed to the driven shaft.   The power generation mechanism is a power generation mechanism / electric mechanism, and a stator equivalent portion of the power generation mechanism / electric mechanism is fixed to an engine power source driving shaft and a rotor equivalent portion is fixed to a driven shaft. Or the hybrid power transmission mechanism of 2.   2. The power generation mechanism is a power generation mechanism / electric mechanism, and a rotor equivalent portion of the power generation mechanism / electric mechanism is fixed to an engine power source driving shaft, and a stator equivalent portion is fixed to a driven shaft. Or the hybrid power transmission mechanism of 2.   6. The hybrid power transmission mechanism according to claim 1, further comprising an electric motor / generator interlocked with a driven shaft.   The hybrid power transmission mechanism according to claim 1, 2, 4, or 6, further comprising an electric motor / generator interlocked with the driven shaft.   The generator / electric mechanism and the electric motor / generator are integrated, and the stator equivalent part of the electric generator / electric mechanism fixed to the driven shaft is also used as the rotor equivalent part of the electric motor / generator. The hybrid power transmission mechanism according to claim 8, characterized in that:   10. The hybrid power transmission mechanism according to claim 7, 8 or 9, wherein a permanent magnet is used in a rotor equivalent portion of the electric motor / generator.

Images