Drive device for hybrid vehicle
AssigneeAisin Aw Co., Ltd.
InventorsKenji Omote, Satoru Wakuta
Life of this patent
Estimating the term…
Abstract
A hybrid vehicle drive system is designed to have dimensions that are shorter in an axial direction and improved centering accuracy of a rotor, in order to prevent deterioration of motor performance. A rotor support plate (15) has a flat-plate shaped disk portion (15b), and is fixed to a front cover (32) of a take off device (5), such as a torque converter, or the like, at the disk portion with a set block (67) and a bolt (69). A forward portion of the take off device is centered and supported by fitting a center piece (33) to a crankshaft (3). A support-plate hub (15a) is in contact with the center piece (33) at a small area (33c) in a vicinity of a fixing plane P of the disk portion (15b) and the set block (67), and thus centering of the rotor (13) is executed.
Claims11
A hybrid vehicle drive system, comprising:
- an automatic transmission having a take off device;
- and
- a motor having a stator and a rotor with an output from the motor and a engine being input to the take off device, wherein:
- the take off device has a front cover and a center piece protruding from the front cover with the center piece centered and supported on an output shaft of the engine,
- the rotor has a support plate supporting the rotor with the support plate having a disk portion extending in an internal diameter direction and defining a hollow portion,
- the support plate is centered by contacting the center piece at the hollow portion defined by the disk portions, and
- the support plate is fixed to the front cover at the disk portion by placing the center piece in the hollow portion.
Dependencies are inferred from the claim text.