Valeoscope - Transmission Syst. Clutch HEC SAT product focus

Pedal load with H.E.C.

Load (N)

Max load at wear reduction

Low load variation

1 0

0 : max load engaged (at new) 1 : Max load engaged (at wear) 2 : Diaphragm free position 3 : Disengaged position

Reduction facing wear Low displacement

2

1

0 3

Travel (mm)

At wear

Disengaged

The pedal load remains at the desired level both in new clutch (approx. 9 kg) and in a worn clutch (11 kg) to provide constant driving comfort.

The graph below shows the pedal load measurement on a popular car application using a 228 mm HEC clutch. The pedal load is measured with a new clutch and at the end of the clutch life.

H.E.C. - Change in pedal load

160

Max load 109,88N

Pedal load at new Pedal load at wear

140

Max load 87,52N

120

100

Disengage Point

80

Pedal load (N)

Engage Point

60

40

20

Pedal travel (mm)

0

0

20

40

60

80

100

120

140

160

17