METHOD FOR CONTROLLING A GEAR-CHANGE OPERATION IN

专利名称：METHOD FOR CONTROLLING A GEAR-CHANGE OPERATION IN AUTOMATICTRANSMISSIONS

发明人：KOERNER, TILLMANN,DIETZEL,

BERND,WILLMERDING,

GUENTER,TRUEBSWASSER, FRANZ,HAECKH,JAKOB,DEPPING, HERBERT

申请号：EP99959332.0申请日：19991125公开号：EP10478B1公开日：20030423

摘要：The invention relates to a method for controlling a gear-change operation inautomatic transmissions with a coordinate control device for use in drive units of motorvehicles with at least one drive engine, especially in the form of an internal combustionengine. The invention is characterized by the following features: In a first step of theinventive method, the actual values of certain dynamics of the vehicle movement aredetermined or calculated for a certain time t0. In a second step, a theoretically attainableconsecutive speed of the drive engine, especially of the internal combustion engine iscalculated on the basis of the actual values, using n_mot_pr_h in the target gear gziel =gakt + n with n≥ 1 or n_mot_pr in the actually chosen gear gakt for every interval t=t0 +tschalt. In a third step, the consecutive speeds detected are compared with a ceilingspeed that can be preset in a characteristic mapping of the drive engine. A downshift orupshift operation can be initiated by controlling the modulators that are actuated for

realizing such a shift of gears depending on the result of the comparison.

申请人：VOITH TURBO GMBH & CO. KG,VOITH TURBO KG,VOITH TURBO GMBH & CO.KG

地址：DE

国籍：DE

代理机构：Dr. Weitzel & Partner

更多信息请下载全文后查看