| 摘要 |
<p>Method and arrangement for providing a powertrain ( 1, 3, 9 ) for motor vehicles that includes an internal combustion engine ( 1 ) and a stagegeared gearbox ( 9 ), which has a direct gear and an indirect gear with intermeshing toothed gears ( 12, 15, 16, 17, 18, 19, 20, 21, 22, 23 ,). A control element ( 45, 48 ) is configured, in response to an input signal indicating that a direct gear is engaged, to be capable of controlling and/or regulating the engine ( 1 ) so that the engine can deliver a higher maximum permitted torque than when the direct gear is not engaged. The increase in the maximum permitted torque is allowed when the efficiency of the powertrain ( 1, 3, 9 ) with direct gear engaged and increased engine torque is superior to the efficiency of the powertrain ( 1, 3, 9 ) when any of the indirect gears ( 12, 15, 16, 17, 18, 19, 20, 21, 22, 23 ,) having a lower maximum permitted engine output torque are engaged.</p> |
