Maximum permissible torque
| Maximum permissible torque |
In order to achieve smoother gear changes and minimal gearbox wear, the TCM continuously sends information on the bus to the engine control system about the “maximum torque” in Nm.
As the gearbox is constructed to withstand a maximum torque of 350 Nm (B235), >310Nm (B235E, B308E) and >280 Nm (B205E, D223L), the TCM normally transmits the bus information “Maximum torque 350/330 Nm” but during certain gear changes, especially during hard acceleration, the TCM requests a lower “maximum torque” during the short gear change interval.
The engine control system uses the information for torque limiting via air mass control.
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