The phrase "servo assistance" refers to the use of machines or mechanisms to make a task easier or require less effort. It means that a device helps or supports a person by reducing the force or energy needed to accomplish a task. Full definition
The level of servo assistance for the rack - and - pinion steering falls as the speed rises; its characteristics have been adapted to the dynamic overall character of the TTS. (topspeed.com)
The steering ratio of 14:1 is 22 percent more direct than in the standard production models, while a more rigid steering column plus the characteristic mapping of the speed - sensitive servo assistance ensure better steering precision and improved road contact. (topspeed.com)
Adaptive brakes with anti-lock-braking system, priming & brake drying function and brake assist with brake servo assistance ensure powerful braking experience. (auto.ndtv.com)