Patent ID: 11933366
Assignee: INTERNATIONAL ENGINE INTELLECTUAL PROPERTY COMPANY, LLC
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F | IPC F

Claim 0:
1. A method for detecting degradation of a connecting rod big end bearing within an internal combustion engine including a crankshaft and an exhaust manifold included on a vehicle, the method comprising the steps of:
providing an electronic control unit operatively connected with the internal combustion engine disposed on the vehicle;
providing a first set of sensors for detecting crankshaft acceleration operatively connected with the electronic control unit and located adjacent the crankshaft of the internal combustion engine;
providing a second set of sensors for detecting engine exhaust manifold pressure, operatively connected with the electronic control unit and located adjacent the engine exhaust manifold;
providing a display component disposed on the vehicle operatively connected with the electronic control unit;
providing an auditory component disposed on the vehicle operatively connected with the electronic control unit;
activating at least one of the display component and the auditory component when the first set of sensors detects diminished crankshaft acceleration during a power stroke compared to prior acceleration of the crankshaft during a power stroke and the second set of sensors detects exhaust manifold pressure that does not vary statistically significantly from expected exhaust manifold pressure.