专利内容由知识产权出版社提供
专利名称：Circuit arrangement and method for
operating an adjusting device
发明人：Cornelius Peter,Gerhard Knecht申请号：US08/860304申请日：19970619公开号：US05963001A公开日：19991005
摘要：A circuit arrangement and a method for operating an adjusting device (10, 11,12) are proposed which ascertain a characteristic variable (38, 42) of the adjusting device(10, 11, 12) as a standard for the adjusting force or adjusting torque and if a limit value isexceeded furnish an overload signal (41, 45). According to the invention, the definition ofthe electrical power for the electric motor (10) is contemplated to a value that makes itpossible to adhere to a specified spring rate in the event something becomes caught,which rate indicates the change in force referred to a change in travel distance. Theadjustment travel of the part (12) to be adjusted is subdivided into travel intervals (I)which are considerably shorter than the total adjustment travel. The method evaluates acontinuous change in the detected characteristic variable in a predetermined number ofsuccessive travel intervals (I) in order to ascertain an overload signal (41, 45). A preferredapplication of the circuit arrangement according to the invention and of the methodaccording to the invention for operating an adjusting device (10, 11, 12) exists in a motorvehicle.
申请人：ROBERT BOSCH GMBH
代理机构：Venable
代理人：Norman N. Kunitz
更多信息请下载全文后查看
