Engine and peripherals

Accelerated idle control

~1min read
Commande ralenti accéléré

Variable post-heating can be interrupted:

  • permanently when coolant temperature is > 60°C,
  • temporarily when the control unit receives the full-load signal for more than 3 seconds; the function is restored on return to idle or low load,
  • temporarily if battery voltage >16 V; the function is restored if Ubatt < 15 V.

In all cases, the total duration of the post-heating function shall not exceed 3 min.

The accelerated idle function is controlled by the control unit via a solenoid valve that operates the vacuum actuator (A/C or non-A/C version).

The accelerated idle control is active:

  • if coolant temperature at ignition switch-on is below 10°C,
La commande de ralenti acce'le're' est active
  • if engine speed drops to 650 rpm and vehicle speed is below 25 km/h. Accelerated idle cuts out as soon as engine speed exceeds 850 rpm.

NOTE:

- Accelerated idle active:

  • solenoid valve not energised,
  • cable free, not tensioned.

- Nominal idle:

  • solenoid valve energised,
  • cable under tension.

SPECIAL FEATURES: as soon as A/C is selected on the dashboard, accelerated idle is activated.

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