There are some fuel - efficiency gains realized by the use of a mild hybrid system that adds the torque of an electric motor to acceleration. (autofocus.ca)
This puts added torque on the elbow and shoulder, causing unwanted stress and potential injury. (onnit.com)
The mild - hybrid system uses a 48 - volt battery pack and a motor generator to add torque when specific driving situations call for it, while improving the truck's fuel economy. (kbb.com)