Patent ID: 6371877
Filing Date: 2002-04-16
Classification: B60K,B60W,F02N,F16H,Y02T,Y10T

Abstract:
Starterâ€”generator system, which is arranged in use between an internal-combustion engine and a transmission, comprising:a stator fixed to a case and a rotor forming an electric starter-generator machine, and a planetary drive which is in a driving connection with a shaft train which connects an internal-combustion engine and a transmission, said planetary drive including: (i) a ring gear, (ii) a planet carrier with planet gears, (iii) a sun gear non-rotatably connected with the rotor, (iv) a first controllable locking device operable to interlock the ring gear with respect to the case for case interlocking operations during a portion of startup of said engine, and (v) a second controllable locking device operable to interlock the ring gear with gear for planetary drive interlocking operations during another portion of startup of said engine, wherein said starter-generator system is operable in a plurality of operating modes including a centrifugal mass starting operation mode having a first starting phase with said planetary drive out of driving connection with the shaft train and with parts of the planetary drive forming a centrifugal mass accelerated with the rotor and a second starting phase with the accelerated centrifugal mass in driving connection with the shaft train.