| 摘要 |
#CMT# #/CMT# The controller has a control device (32) for modifying the control function depending on the roadway condition. The control device is designed to evaluate the roadway condition based on measured wheel speeds (Vfl, Vfr, Vrl, Vrr) by comparison of the wheel speed differences with typical wheel speed differences, which occur during curve driving and/or based on drive slipping on a normal non-slip roadway e.g. dry asphaltic surface. #CMT#USE : #/CMT# Used in a motor vehicle (claimed) to control speed of the vehicle to a desired speed selected by a driver. #CMT#ADVANTAGE : #/CMT# The control device evaluates the roadway condition based on the measured wheel speeds by comparison of the wheel speed differences with the typical wheel speed differences, which occur during curve driving and/or based on drive slipping on the normal non-slip roadway e.g. dry asphaltic surface, thus improving operational reliability of the controller if the controller is used with vehicles, which do not have an electronic stability system to provide direct information about the roadway friction value. #CMT#DESCRIPTION OF DRAWINGS : #/CMT# The drawing shows a principle view of a motor vehicle with a speed controller. Vfl, Vfr, Vrl, Vrr : Wheel speeds 10 : Motor vehicle 12 : Left front wheel 14 : Right front wheel 32 : Control device. |
