Drive Motor Assembly (2nd Position)
| Callout | Component Name |
|---|---|
| 520 | Drive Motor Support |
| 521 | Drive Motor Position Sensor Stator |
| 522 | Drive Motor Position Sensor Bolt [4x] |
| 523 | Drive Motor Position Sensor Connector Clip |
| 524 | Drive Motor Power Inverter Module 3-Phase Cable Bolt [3x] |
| 525 | Drive Motor Power Inverter Module Cable Bolt Install Guide Retainer [3x] |
| 526 | Drive Motor Power Inverter Module Cable Bolt Install Guide Bushing [3x] |
| 527 | Drive Motor Power Inverter Module Cable Guide |
| 528 | Drive Motor Stator - (2nd Position) |
| 529 | Drive Motor Stator Bolt [4x] |
| 530 | Drive Motor Rotor - (2nd Position) |
| 531 | Drive Motor Rotor Bearing Retaining Ring |
| 532 | Output Sun Gear |
| 533 | Output Sun Gear Retaining Ring |
The Drive Motor/Generator Description
Drive Motor Assembly (1st position) is a generator referred to as Drive Motor 1 on the scan tool and consists of a permanent magnet rotor with a distributed bar wound, NdFeB magnet stator capable of producing 55 kW of peak electrical energy and 138 N.m (102 lb ft).
Drive Motor Assembly (2nd position) is a traction motor referred to as Drive Motor 2 on the scan tool and consists of a permanent magnet rotor with a distributed bar wound, NdFeB magnet stator capable of producing 76 kW of peak electrical energy and 178 N.m (131 lb ft).
Both are actively cooled via transmission fluid. Drive Motor Assembly (1st position) is used to start the engine and maintain charge to the hybrid battery. Drive Motor Assembly (2nd position) propels the vehicle. Motor speeds are controlled and monitored by resolver-type position sensors. The drive motor position sensors are monitored by the motor control modules. The motor control modules monitor the angular position, speed and direction of the drive motor generator based upon the signals of these position sensors. The position sensor or resolver, contains a drive coil, 2 driven coils and an irregular shaped metallic rotor. The metallic rotor is mechanically attached to the shaft of the drive motor generator. At ignition ON, the motor control module outputs a low AC voltage, 10 kHz excitation signal to the drive coil. The drive coil excitation signal creates a magnetic field surrounding the 2 driven coils and the irregular shaped rotor. The motor control module then monitors the 2 driven coil circuits for a return signal. The position of the irregular shaped metallic rotor causes the magnetically-induced return signals of the driven coils to vary in size and shape. A comparison of the 2 driven coils signals allows the motor control module to determine the exact angle, speed and direction of the drive motor generator. For more information on the drive motor function and system interaction, refer to Drive Motor Power Inverter Module Description and Operation .