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Power transmission system for vehicle and vehicle comprising the same

  • US 9,944,165 B2
  • Filed: 10/29/2014
  • Issued: 04/17/2018
  • Est. Priority Date: 01/30/2014
  • Status: Active Grant
First Claim
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1. A power transmission system for a vehicle, comprising:

  • an engine unit;

    a plurality of input shafts comprising a first input shaft, a second input shaft fitted over the first input shaft, and a third input shaft fitted over the second input, wherein the engine unit is configured to selectively engage with one of the input shafts when the engine unit transmits power to the one of the input shafts;

    a plurality of driving gears, wherein each of the driving gears is disposed respectively on each of the input shafts, wherein three of the plurality of driving gears disposed on the first, second, and third input shafts respectively;

    an output shaft configured to transfer the power from the input shafts;

    one or more linked gears rotatable at a different speed relative to the output shaft, wherein the one or more linked gears comprise a triple-linked gear, the triple-linked gear comprising a first gear part, a second gear part, and a third gear part, wherein the first gear part, the second gear part and the third gear part are configured to mesh with the three of the plurality of driving gears respectively, wherein the first gear part, the second gear part, and the third gear part are linked together;

    an output unit coupled on the output shaft and configured to transmit the power to front wheels of the vehicle;

    a synchronizer disposed on the output shaft, and configured to be selectively engaged with one of the plurality of input shafts via at least one of the one or more linked gears;

    a first motor generator configured to perform power transmission with at least one of the input shafts and the output shaft;

    one or more second motor generators configured to drive at least one of the front wheels of the vehicle; and

    one or more third motor generators configured to drive two rear wheels of the vehicle, wherein the second motor generators and the third motor generators are wheel-side motors.

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