To provide a left and right wheel drive device which reduces unintended torque difference between left and right wheels.SOLUTION: In a left and right wheel drive device 15 comprising a first motor 1 and a second motor 2 which drive left and right wheels of a vehicle, and a gear mechanism 8 which amplitudes a torque difference therebetween and transmits to the left and right wheels, a mechanical pump 3 is provided on a power transmission path between the first motor 1 and the gear mechanism 8. A refrigerant discharged from the pump 3 is introduced into the first motor 1 via a first refrigerant passage 4, and is introduced into the second motor 2 via a second refrigerant passage 5. A calculation part 11, which calculates a loss torque derived from operation of the pump 3 and a torque addition value of the first motor 1 on the basis of the number of revolutions of the first motor 1, is provided. Further, a control part 12, which controls the first motor 1 so as to generate a torque in which the torque addition value is added to a request torque of the first motor 1, is provided.SELECTED DRAWING: Figure 1

    【課題】左右輪駆動装置に関し、左右輪の意図しないトルク差を減少させる。【解決手段】車両の左右輪を駆動する第一モーター1,第二モーター2とそのトルク差を増幅して左右輪の伝達する歯車機構8とを具備する左右輪駆動装置15において、第一モーター1と歯車機構8との間の動力伝達経路に機械式のポンプ3を設ける。ポンプ3から吐出された冷媒は、第一冷媒通路4を介して第一モーター1に導入されるとともに、第二冷媒通路5を介して第二モーター2に導入される。第一モーター1の回転数に基づき、ポンプ3の動作に由来する損失トルクと第一モーター1のトルク加算値とを算出する算出部11を設ける。また、第一モーター1の要求トルクにトルク加算値を加算したトルクが発生するように、第一モーター1を制御する制御部12を設ける。【選択図】図1


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    Title :

    LEFT AND RIGHT WHEEL DRIVE DEVICE


    Additional title:

    左右輪駆動装置


    Contributors:

    Publication date :

    2020-09-17


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / F16H Getriebe , GEARING / H02P CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS , Steuern oder Regeln von elektrischen Motoren, elektrischen Generatoren, dynamoelektrischen Umformern



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