Patent ID: 8172018
Filing Date: 2012-05-08
Classification: B60K,B60L,B60W,F16H,Y02T

Abstract:
1. A control apparatus for a vehicular power transmitting system provided with a power distributing device for distributing a drive force generated by a main drive power source to a first electric motor and a power transmitting member, a second electric motor connected through a step-variable transmission to a power transmitting path between said power transmitting member and a drive wheel, and an electric-energy storage device for storing an electric energy generated by said first electric motor and/or said second electric motor and for supplying the electric energy to the first electric motor and/or the second electric motor, said control apparatus including comprising: second-electric-motor-torque-reduction control means for implementing a torque reduction control for reducing an output torque of said second electric motor during a shifting action of said step-variable transmission; second-electric-motor-torque-reduction-control limiting means for limiting a torque reduction amount of said second electric motor in the torque reduction control by said second-electric-motor-torque-reduction control means, according to an upper limit of a charging/discharging amount of said electric-energy storage device; and first-electric-motor-torque reduction control means for implementing a torque reduction control for reducing, an output torque of said first electric motor, and wherein said second-electric-motor-torque-reduction-control limiting means is configured such that when at least one of operating states of said step-variable transmission and said electric-energy storage device satisfies a predetermined condition, a degree of limitation of the torque reduction amount of the second electric motor by said second-electric-motor-torque-reduction-control limiting means is reduced with respect to that when at least one of said operating states does not satisfy said predetermined condition, while the output torque of said first electric motor is reduced by said first-electric-motor-torque-reduction control means.