Patent ID: 7811190
Filing Date: 2010-10-12
Classification: B60K,B60L,B60W,F16H,Y02T

Abstract:
1. A vehicular drive system including a differential portion operable to distribute a drive force received by an input rotary member to a first electric motor and a power transmitting member, a second electric motor disposed in a power transmitting path between said power transmitting member and a drive wheel of a vehicle, a transmission portion disposed between said power transmitting member and said drive wheel, and a drive linkage through which said transmission portion is connected to said power transmitting member, said vehicular drive system comprising: said first electric motor, differential portion and second electric motor being disposed on a first axis about which said input rotary member is rotated; said transmission portion being disposed on a second axis parallel to said first axis; a cap-shaped first casing portion covering one axial portion of said first electric motor; a cylindrical second casing portion disposed adjacent to said first casing portion and cooperating with said first casing portion to define a first accommodating chamber in which said first electric motor is accommodated; a cylindrical third casing portion disposed adjacent to and on one side of said second casing portion remote from said first casing portion, and cooperating with said second casing portion to define a second accommodating chamber in which said differential portion and said second electric motor are accommodated, and a third accommodating chamber in which said transmission portion is accommodated; a cap-shaped fourth casing portion disposed adjacent to said third casing portion and cooperating with said third casing portion to define a fourth accommodating chamber in which said drive linkage is accommodated; and said first, second, third and fourth casing portions are connected to each other to constitute a housing of the vehicular drive system.