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US 10,378,417 B2Granted
Method and system for exhaust particulate matter sensing
AssigneeFord Global Technologies, LLC
InventorsXiaogang Zhang, Jianwen James Yi
Life of this patent
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Abstract
Methods and systems are provided for a particulate matter sensor arranged along an exhaust passage. In one example, a particulate matter sensor includes a series of tubes arranged in substantially a U-shape, and where the particulate matter sensor comprises one or more of a rotating element and a temperature sensing element.
Claims5
A method comprising:
- rotating a screen of a particulate matter sensor periodically via an actuator;
- and
- indicating leakage of a particulate filter based on an amount of power supplied to the actuator.
Dependencies are inferred from the claim text.