Method for controlling a vehicle drive unit having a continuously variable transmission
2001
Online
Patent
A method for controlling a vehicle drive unit, which comprises a drive engine and a transmission with a continuously variable gear ratio, comprises the following steps
a) the required vehicle acceleration (ASOLL) is calculated from a throttle control lever position (XFP, XHG) and the current speed of travel (VFZ)
b) a required transmission variation (IGDSOLL1) is calculated from the required vehicle acceleration (ASOLL) and the current rotation speed (NMOT) of the drive engine
c) a limited required transmission variation (IGDSOLL) is determined from the required transmission variation (IGDSOLL1) such that the engine rotation speed (NMOT) does not fall below a value which depends on the position of the power control element (XEP) of the drive engine
d) the continuously variable transmission is varied in accordance with (IGDSOLL);
e) the actuation parameter (XEPSOLL) for the power control element of the drive engine is obtained directly from the throttle control lever position (XFP, XHG).
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Method for controlling a vehicle drive unit having a continuously variable transmission
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Autor/in / Beteiligte Person: | Parigger, Martin |
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Veröffentlichung: | 2001 |
Medientyp: | Patent |
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