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At a time of backward movement, a ring gear shaft, and thus a front axle, is disconnected from a planetary gear by a clutch, and a carrier and a ring gear, and thus, a crank shaft and a sun gear shaft, are connected to each other by the clutch, whereby a hybrid motor vehicle is constructed as a seri

At a time of backward movement, a ring gear shaft, and thus a front axle, is disconnected from a planetary gear by a clutch, and a carrier and a ring gear, and thus, a crank shaft and a sun gear shaft, are connected to each other by the clutch, whereby a hybrid motor vehicle is constructed as a series-type hybrid electric motor vehicle, thereby outputting a torque in accordance with a depressed amount of an accelerator pedal to the front axle and a rear axle by a motor MG2 and a motor MG3 at a suitable torque distribution for backward movement. When a state of charge of a battery is small, power is generated by a motor MG1 using a power obtained by driving an engine so as to be supplied to the motor MG2 and the motor MG3.

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At a time of backward movement, a ring gear shaft, and thus a front axle, is disconnected from a planetary gear by a clutch, and a carrier and a ring gear, and thus, a crank shaft and a sun gear shaft, are connected to each other by the clutch, whereby a hybrid motor vehicle is constructed as a seri

At a time of backward movement, a ring gear shaft, and thus a front axle, is disconnected from a planetary gear by a clutch, and a carrier and a ring gear, and thus, a crank shaft and a sun gear shaft, are connected to each other by the clutch, whereby a hybrid motor vehicle is constructed as a series-type hybrid electric motor vehicle, thereby outputting a torque in accordance with a depressed amount of an accelerator pedal to the front axle and a rear axle by a motor MG2 and a motor MG3 at a suitable torque distribution for backward movement. When a state of charge of a battery is small, power is generated by a motor MG1 using a power obtained by driving an engine so as to be supplied to the motor MG2 and the motor MG3. nt application Ser. No. 09/938,176, Coon, filed Aug. 23, 2001. U.S. patent application Ser. No. 09/938,168, Coon, filed Aug. 23, 2001. U.S. patent application Ser. No. 09/904,735, Badrak et al., filed Jul. 13, 2001. PCT International Search Report, International Application No. PCT/GB02/03936, Dated Oct. 24, 2002. U.S. patent application Ser. No. 09/470,176, Metcalfe et al., filed Dec. 22, 1999. U.S. patent application Ser. No. 09/470,154, Metcalfe et al., filed Dec. 22, 1999. U.S. patent application Ser. No. 09/469,690, Abercrombie, filed Dec. 22, 1999. U.S. patent application Ser. No. 09/469,643, Metcalfe et al., filed Dec. 22, 1999. U.S. patent application Ser. No. 09/469,526, Metcalfe et al., filed Dec. 22, 1999. U.S. patent application Ser. No. 09/469,681, Metcalfe et al., filed Dec. 22, 1999. U.S. patent application Ser. No. 09/462,654, Metcalfe, filed Dec. 19, 2000.