User Manual

Chapter 13

BOSCH HDI EDC 15C2 INJECTION SYSTEM AND PARTICLE FILTER

119

H - DISTANCE

The distance parameter:

• activates regeneration assistance independently to the pressure differential

information,

• limits the amount of soot to be burnt off in the filter, should the pressure

differential information fail.

Note: Too many particles to be burned would lead to excessive temperatures

which would damage the particle filter.

If the average distance of the last 5 regenerations is less than a limit (350 km),

the injection ECU switches to the "distance" strategy.

The distance travelled since the last regeneration is counted by the main injection

ECU which activates regeneration assistance when this counter reaches a limit

"J".

This limit, or regeneration frequency, depending on the total distance travelled by

the particle filter.

The regeneration frequency must be increased to take into account the reduction

in capacity of the particle filter (consumption/quantity of accumulated cerine).

SDI043C

80 000

1400

850

H - Distance travelled by the particle filter (km)

J - Regeneration frequency (km)

I - OTHER CONDITIONS

Other conditions authorising activation of regeneration assistance:

• coolant temperature above 60°C,

• sufficient engine speed / load.

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