PROBLEM TO BE SOLVED: To provide a two-motor vehicle drive device for a four-wheel drive vehicle that is capable of miniaturizing a driving source while improving traveling performance by amplifying and distributing a torque difference between front and rear axles through use of two electric motors.SOLUTION: The two-motor vehicle drive device is provided with: two electric motors 2 and 3 that are mounted on a vehicle so as to be independently controllable; a torque distribution device 30 that distributes torque from the electric motors 2 and 3 to a front wheel axle output unit 15B and a rear wheel axle output unit 15A by amplifying a torque difference; and reduction gear strings 12 and 13 that transmit the torque output from motor output shafts 2a and 3a of the electric motors 2 and 3 to an input unit of the torque distribution device 30. The torque distribution device 30 has: planetary gear mechanisms 30A and 30B having three elements and two degrees of freedom arranged on the same axis; two coupling members 31 and 32 that couple two elements between the two planetary gear mechanisms 30A and 30B; two input units that receive the torque from the electric motors 2 and 3; and two output units that output the distributed torque.SELECTED DRAWING: Figure 1

    【課題】2つの電動モータを用い、前後車軸間のトルク差を増幅して配分することで、走行性能の向上を図りつつ駆動源の小型化が可能な四輪駆動車用の2モータ車両駆動装置を提供する。【解決手段】車両に搭載され独立して制御可能な2つの電動モータ2、3と、電動モータ2、3からのトルクを前輪車軸用の出力部15Bと後輪車軸用の出力部15Aにトルク差を増幅して配分するトルク配分装置30と、電動モータ2、3のモータ出力軸2a、3aから出力されるトルクをトルク配分装置30の入力部に伝達する減速ギヤ列12、13とを備え、トルク配分装置30は、同軸上に並ぶ2つの3要素2自由度の遊星歯車機構30A、30Bと、2つの遊星歯車機構30A、30Bの間で2要素を結合する2つの結合部材31、32と、電動モータ2、3のトルクを受け取る2つの入力部と、配分されたトルクを出力する2つの出力部とを有する。【選択図】図1


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    Title :

    TWO-MOTOR VEHICLE DRIVE DEVICE FOR FOUR-WHEEL DRIVE VEHICLE


    Additional title:

    四輪駆動車用の2モータ車両駆動装置


    Contributors:
    HIRAI ISAO (author)

    Publication date :

    2017-11-24


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / F16H Getriebe , GEARING




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