| 摘要 |
<p>A device and method are provided for automatically adjusting torque transmitting ability of a hydrodynamic coupling in a transmission arranged between a power turbine and a crank shaft in a turbocompound combustion engine. The method includes continuously registering a value for one or several of: a. engine load parameter for the combustion engine and/or, b. temperature in the combustion engine and/or, c. parameters for indicating NVH in the transmission; If parameters a to c have passed a predetermined value for each of the parameters, then braking a power turbine side of the hydrodynamic coupling and continuously adjusting said torque transmitting ability of the hydrodynamic coupling in dependence of the development of the parameters a to c. Increased control of the transmission and engine performance, especially lower noise and exhaust emissions, and accelerated heating of the engine during cold starts, but also better auxiliary braking, can be provided.</p> |
