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An electromechanical transmission for use with a motor vehicle having an internal combustion engine includes a planetary gear assembly, an electric drive, a changeover gear assembly, and a driven shaft. A planetary gear assembly includes an input shaft and first and second output shafts, wherein the

An electromechanical transmission for use with a motor vehicle having an internal combustion engine includes a planetary gear assembly, an electric drive, a changeover gear assembly, and a driven shaft. A planetary gear assembly includes an input shaft and first and second output shafts, wherein the input shaft is coupled to a crankshaft of the internal combustion engine. The electric drive includes first and second rotors connected to two of the input shaft and two output shafts of the planetary gear assembly, respectively. A changeover gear assembly includes first and second gear shafts connected to the two output shafts of the planetary gear, respectively. The changeover gear assembly also includes a first gear wheel pair rotatably mounted to the first gear shaft and a second gear wheel pair rotatably mounted to the second gear shaft. The changeover gear assembly further includes a shifting mechanism operatively associated with each gear shaft and the corresponding gear wheel pair. A driven shaft is coupled to each of the gear shafts via gear engagement.

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An electromechanical transmission for use with a motor vehicle having an internal combustion engine includes a planetary gear assembly, an electric drive, a changeover gear assembly, and a driven shaft. A planetary gear assembly includes an input shaft and first and second output shafts, wherein the

An electromechanical transmission for use with a motor vehicle having an internal combustion engine includes a planetary gear assembly, an electric drive, a changeover gear assembly, and a driven shaft. A planetary gear assembly includes an input shaft and first and second output shafts, wherein the input shaft is coupled to a crankshaft of the internal combustion engine. The electric drive includes first and second rotors connected to two of the input shaft and two output shafts of the planetary gear assembly, respectively. A changeover gear assembly includes first and second gear shafts connected to the two output shafts of the planetary gear, respectively. The changeover gear assembly also includes a first gear wheel pair rotatably mounted to the first gear shaft and a second gear wheel pair rotatably mounted to the second gear shaft. The changeover gear assembly further includes a shifting mechanism operatively associated with each gear shaft and the corresponding gear wheel pair. A driven shaft is coupled to each of the gear shafts via gear engagement. /222; US-5248141, 19930900, Kelly, 273/081.B; US-5261665, 19931100, Downey, 273/081.B; US-D345192, 19940300, Solheim, D21/222; US-5322290, 19940600, Minami, 273/187.5; US-5348303, 19940900, Swissheim, 273/187.5; US-D357295, 19950400, Solheim, D21/222; US-5511790, 19960400, Duran, 473/201; US-D376400, 19961200, Nakazaki, D21/222; US-D391330, 19980200, Solheim et al., D21/222; US-5795242, 19980800, Ree, 473/303; US-6234920, 20010500, Wang, 473/523; US-20010046905, 20011100, Huang, 473/300; US-20010055994, 20011200, Kwitek, 473/300; US-20020061787, 20020500, Huang, 473/300