Transmission assembly with integrated motor position sensor

摘要

A transmission-mounted electric machine includes an integrated rotational position sensor. The rotational position sensor includes a rotor element and a stator element. The stator element is attached to a stator element of the transmission at a plurality of mounting points and includes an alignment adjustment mechanism. The rotor element of the sensor is slip-fit against a shoulder of a rotor hub and held in place using a wave spring.

主权项

1. An apparatus including a transmission assembly with an integrated torque machine, comprising:
the torque machine including a stator with a frame secured to a case of the transmission and providing structural support for an axially projecting spindle, the spindle including a non-bearing portion; the torque machine including a rotor configured to rotate on the spindle and fixedly coupled to a rotatable gear element of the transmission to rotate therewith, the rotor including a rotor hub with a hub extension including an inner surface with a first shoulder; an annular-shaped sensor envelope formed between the hub extension of the rotor hub and the non-bearing portion of the spindle, said sensor envelope configured to accommodate a rotational position sensor; and the rotational position sensor configured to monitor rotational position of the rotor in relation to the stator and including a rotor element and a stator element, wherein said sensor rotor element is mechanically decoupled from the sensor stator element and an airgap is formed between the sensor rotor element and the sensor stator element; wherein the sensor rotor element is inserted into the hub extension of the rotor hub and secured between the first shoulder of the inner surface and a wave spring, further comprising a locking snap ring inserted into a recess on the rotor hub.