Lepelletier Actuation (7-Speed)
Clutch Arrangement for a 7-Speed Lepelletier Gearbox
The Lepelletier 7-Speed Actuation component is intended for use with a Ravigneaux Gear and a Planetary Gear (see Ravigneaux Gear and Planetary Gear). The internal structure of this component is shown below. The combination of the clutches and the activation table, enables the user to easily create a 7-Speed Lepelletier Gearbox.
Internal Structure
Connections
Name
Condition
Description
ID
drive
-
Drive shaft Flange (to be connected to ring flange of a Planetary Gear - See below)
input carrier
input carrier shaft Flange (to be connected to carrier flange of a Planetary Gear - See below)
input_carrier
input sun
input carrier shaft Flange (to be connected to sun flange of a Planetary Gear - See below)
input_sun
small sun
Small Sun flange (to be connected to small sun flange of a Ravigneaux Gear)
small_sun
carrier
Carrier flange (to be connected to carrier flange of a Ravigneaux Gear)
sun
large sun
Large sun flange (to be connected to large sun flange of a Ravigneaux Gear)
large_sun
Gear Number N
Integer input for the gear number. −1≤N≤6 (-1: Reverse, 0: Neutral, 1,2,3,4,5,7: Forward)
GearNo
Parameters
Symbol
Default
Units
J
0.0001
kg⋅m2
Added inertia to Clutch components.
clutch table
see below
−
A 9 by 7 clutch actuation table. first column is for the gear numbers (not used) ordered from -1 (reverse) to 7 (seventh gear). Zeroth gear designates neutral.
table
Clutch Parameters
See Clutch component for the description of the clutch parameters.
Clutch Table
Gear \ Clutch
A
B
C
D
E
F
−1
0
1
2
3
4
5
6
7
7-Speed Lepelletier Gearbox
The figure below shows how to create a 6-Speed Lepelletier gearbox using a Planetary Gear, a Ravigneaux Gear, and a Lapelletier 7-Speed Actuation component.
See Also
Driveline Library Overview
MapleSim Library Overview
1-D Mechanical Overview
Compound Gear Sets
Clutch
Planetary Gear
Ravigneaux Gear
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