Particle filter regeneration temperature regulating method for motor vehicle's diesel engine, involves performing regulation process continuously in degraded mode for being reconfigured to reduce temperature of filter when sensor is faulty

摘要

The method involves determining set point of flow rate of fuel injected into an exhaust line (4) upstream of an oxidation catalyst (6), from regulation parameters. A regulation process is performed continuously in a degraded mode so as to be reconfigured to reduce temperature of a particle filter (7) when one of sensors (9) measuring a variable used for determining one of the regulation parameters is faulty. Influence of dynamic correction of the set point is reduced if the sensor determining temperature existing between a diesel engine (1) and the catalyst is faulty. An independent claim is also included for a motor vehicle.