TRANSMISSION CONTROL SYSTEM |
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| 申请号 | US15825194 | 申请日 | 2017-11-29 | 公开(公告)号 | US20180149266A1 | 公开(公告)日 | 2018-05-31 |
| 申请人 | ZF Friedrichshafen AG; | 发明人 | Tomas SZABO; Knut GRAICHEN; Sebastian HENTZELT; | ||||
| 摘要 | A transmission which includes input and output shafts and first and second step-down devices for producing various step-down ratios. The first and second step-down devices are associated with first and second controllable clutches, respectively, in order to connect, in a torque-transmitting manner, the respective step-down device between the input shaft and the output shaft. A first gear of the transmission is obtained by actuating the first clutch and a second gear by actuating the second clutch. A method of controlling a gearshift, from the first gear to the second gear, includes the steps of determining operating condition parameters of the transmission; and determining optimized degrees of actuation of the clutches by a search process related to a transmission model that determines the degrees of actuation on the basis of operating condition parameters in relation to a predetermined optimization criterion. The transmission model is based on slip. | ||||||
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