| 摘要 |
The present invention pertains to a method to establish a sensor function for a PM sensor (213) intended for the determination of a particle content in an exhaust stream resulting from combustion in a combustion engine (101), where an aftertreatment system (200) is installed for aftertreatment of the said exhaust stream, where the said vehicle comprises an element for the supply of additives to the said exhaust stream. The method comprises: - establishing a change in a signal emitted by the said PM sensor (213) in response to a change in the supply of additives, and - based on the said change in the said signal emitted by the said PM sensor, establishing whether the said PM sensor (213) emits a signal which is representative of the said exhaust stream. The invention also relates to a system and a vehicle. |
