实施例是针对用于辅助动力单元(APU)之组件、子总成、系统及/或方法。在一实施例中，APU包含诸如可操作地耦合至无段变速箱(CVT)之燃机的旋转动力源。CVT可耦合至负载。在一些实施例中，负载是借由发电机提供。在一实施例中，APU具有经组态以控制发动机之操作与CVT之操作的控制系统。控制系统可在发动机之可变操作存在时促进发电机之实质上恒定速度操作。在另一实施例中，APU包含可操作地耦合至发动机之无段变速箱附件驱动机(CVAD)。CVAD可包含可操作地耦合至发电机之无段变速箱。在一实施例中，基于偏斜之控制系统用以促进CVAD之比率的改变。

Embodiments are directed to components, subassemblies, systems, and/or methods for auxiliary power units (APU). In one embodiment, the APU includes a source of rotational power such as a combustion engine operably coupled to a continuously variable transmission (CVT). The CVT can be coupled to a load. In some embodiments, the load is provided by a generator. In one embodiment, the APU has a control system configured to control the operation of the engine and the operation of the CVT. The control system can facilitate substantially constant speed operation of the generator in the presence of variable operation of the engine. In another embodiment, the APU includes a continuously variable accessory drive (CVAD) operably coupled to an engine. The CVAD can include a continuously variable transmission operably coupled to a generator. In one embodiment, a skew-based control system is adapted to facilitate a change in the ratio of a CVAD.