Performance, Robustness, and Durability of an Automatic Brake System for Vehicle Adaptive Cruise Control -
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Performance, Robustness, and Durability of an Automatic Brake System for Vehicle Adaptive Cruise Control

Adaptive Cruise Control (ACC) technology is presently
emerging in the automotive market as a convenience
function intended to reduce driver workload. It allows the
host vehicle to maintain a set speed and distance from
preceding vehicles by a forward object detection sensor.
The forward object detection sensor is the focal point of
the ACC control system, which determines and regulates
vehicle acceleration and deceleration through a
powertrain torque control system and an automatic
brake control system. This paper presents a design of an
automatic braking system that utilizes a microprocessorcontrolled
brake hydraulic modulator. The alternatively
qualified automatic braking means is reviewed first. The
product level requirements of the performance,
robustness, and durability for an automatic brake system
are addressed. A brief overview of the presented system
architecture is described. The control methodology of
generating brake pressure via a hydraulic modulator to
achieve the vehicle decel

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