1 The active cruise function
Active cruise control similar to a conventional cruise control, the vehicle speed remains the same is set, except that the new system automatically adjusting the speed of the preceding vehicle to ensure a sufficient safety distance. Active cruise control system (Adaptive Cruise Control, referred to as the ACC), the system main angle sensor, wheel speed sensor, a brake controller, a torque controller and an engine controller by the radar sensor, the direction of the composition.
during driving, the driver to set a desired vehicle speed, or a radar system using a low-power infrared beam to obtain the exact position of the preceding vehicle, the preceding vehicle deceleration if it is found, the system sends a signal to the engine or execution braking system to reduce the speed of the vehicle and the vehicle in front to maintain a safe driving distance, the road ahead is not the current car will accelerate back to the set speed. Since the vehicle is not only exercised in a straight line, but also consider the use of in the corners. When traveling on a multi-lane highway, the system can identify the vehicle on the lane where the own vehicle in an adjacent lane and in accordance with the rotation angle of the steering wheel to avoid misinterpretation.
In addition, the system is operating, its distance from the vehicle ahead measured in seconds rather than meters, which ensure that the system will have sufficient reaction time at a current traveling speed. Active Cruise Control system with start-stop function of the flow traffic to make driving easier and more secure. To adjust the speed, the security system is calculated according to the data rate required dynamic stability control and navigation systems.
is now active cruise control (ACC) system has two control modes mdash; mdash; constant speed control and headway control. Headway control by the on-vehicle radar before the probe car from Lexus active cruise control system has three distance is provided, the vehicle speed is 80 km / h, the system automatically adjusts the vehicle speed, the vehicle in front is maintained between 15 to 25 m . At present, the domestic sales of Lexus models, many are equipped with active cruise control system (ACC).
Active cruise control system controls the driver instead of the vehicle speed, and to avoid the frequent cancellation of the set cruise control system is adapted to make the cruise more traffic, a more relaxed way of driving for the driver.