ANNEX VI VERIFYING TRANSMISSION, TORQUE CONVERTER, OTHER TORQUE TRANSFERRING COMPONENT AND ADDITIONAL DRIVELINE COMPONENT DATA
Appendix 11 Standard torque loss values – geared angle drive
Consistent with the standard torque loss values for the combination of a transmission with a geared angle drive in Appendix 8, the standard torque losses of a geared angle drive without transmission shall be calculated from:
where:
=
Torque loss related to the input shaft of transmission [Nm]
=
Additional angle drive gear drag torque at x rpm [Nm]
(if applicable)
=
Speed at the input shaft of transmission [rpm]
=
1-η;
=
efficiency
=
0,04 for angle drive gear
=
Torque at the input shaft of transmission [Nm]
=
Maximum allowed input torque in any forward gear of transmission [Nm]
=
max(Tmax,in,gear)
=
Maximum allowed input torque in gear, where gear = 1, 2, 3,… top gear)
The standard torque losses obtained by the calculations above may be added to the torque losses of a transmission obtained by Options 1-3 in order to obtain the torque losses for the combination of the specific transmission with an angle drive.