(EN) A method of operating a multi-mode drive system that precisely orchestrates a shift between gear ratios in a power take off unit and a rear drive module is provided. The method first shifts between gear ratios in the power take off unit and then, depending upon the success or failure of the shift of the power take off unit, shifts between gear ratios in the rear drive module.
(ZH) 一种操作多模式驱动系统的方法,该方法精确地协调了取力器单元和后驱动模块中的传动比之间的换档。该方法首先在取力器单元中的传动比之间换档,然后取决于取力器单元的换档的成功或失败而在后驱动模块中的传动比之间换档。