Reciprocating piston internal combustion engine and method for determining the wear of a transmission element arranged between a crankshaft and a camshaft
First Claim
1. A method for determining a wear value for a transmission element arranged between a crankshaft and a camshaft of a reciprocating piston internal combustion engine, comprising:
- driving the camshaft by the transmission element via a drive part, detecting at least one measurement value for a phase position of the drive part relative to the crankshaft at spaced apart time points, during which the crankshaft drives the camshaft, determining a wear value from a difference between the measurement values, and adjusting a rotational angle between the camshaft and the crankshaft based on the wear value via an adjustment device connected to the drive part.
7 Assignments
0 Petitions
Accused Products
Abstract
A method for determining a wear value of a transmission element between a crankshaft and a camshaft of a reciprocating piston internal combustion engine, in particular a timing chain or toothed belt, is provided. The camshaft is driven by the transmission element via a drive part, for example a camshaft gearwheel. In each case, at least one measurement value for the phase position of the drive part relative to the crankshaft is determined at time intervals during which the crankshaft drives the camshaft, and the wear value is determined from the difference between the measurement values.
-
Citations
10 Claims
-
1. A method for determining a wear value for a transmission element arranged between a crankshaft and a camshaft of a reciprocating piston internal combustion engine, comprising:
- driving the camshaft by the transmission element via a drive part, detecting at least one measurement value for a phase position of the drive part relative to the crankshaft at spaced apart time points, during which the crankshaft drives the camshaft, determining a wear value from a difference between the measurement values, and adjusting a rotational angle between the camshaft and the crankshaft based on the wear value via an adjustment device connected to the drive part.
- View Dependent Claims (2, 3, 4, 5, 6, 7)
- 8. A reciprocating piston internal combustion engine comprising a crankshaft, at least one camshaft, and at least one transmission element connecting the shafts to each other, wherein the transmission element is in driving connection with the camshaft via a drive part, a measurement device for determining a phase position of the drive part relative to the crankshaft the measurement device is connected to a data memory, which has at least one memory location, in which a measurement value is stored, and the measurement device is connected to an evaluation device, which is constructed for determining a wear value for the transmission element from phase position measurement values detected at two or more different time points, wherein the drive part is rotated via an adjustment device for changing a phase position of the camshaft relative to the crankshaft and can be locked in rotation with the camshaft in different rotational positions.
Specification