The bugs in your computer-on-wheels

摘要

In today's cars, electronics and computers have replaced many mechanical components, taking over control of crucial systems. Many of these changes are intended to improve safety, but has their complexity introduced new and unnecessary risks? Nic Fleming assesses the electronic systems found in modern cars and the ways in which they can fail.rnCruise control systems use an electronic control module (ECM) to maintain a speed set by the driver, The ECM sends signals to an actuator to open or close the throttle. Several manufacturers have recalled models over cruise control problems, such as drivers being unable to disengage the control. Newer"adaptive" cruise control systems add feedback from in-car radar to stay a safe distance from the car in front.