Method for detecting a reciprocal position between a cylinder and a piston of a piston-cylinder unit and a relative piston-cylinder unit
AssigneeOgnibene Power S.P.A.
InventorClaudio OGNIBENE
Life of this patent
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Abstract
A method is provided for detecting a reciprocal position between a cylinder and a piston of a piston-cylinder unit of a vehicle. The method includes measuring, by means of an optical sensor, a value of an indicative parameter of a color of a reference mark positioned on a portion of the piston. The method also includes comparing the measured value with at least a predetermined threshold value thereof different to a minimum detected threshold of the indicative parameter by the optical sensor; and emitting an alarm signal perceptible by a driver of a vehicle if the measured value is comprised between the threshold value and the minimum value.
Claims9
A method for detecting a reciprocal position between a cylinder (20) and a piston (30) of a piston-cylinder unit (10) of a vehicle (V), wherein the method comprises steps of:
- measuring, by means of an optical sensor (40), a value of an indicative parameter of a color of a reference mark (33) positioned on a portion of the piston (30);
- comparing the measured value with at least a predetermined threshold value thereof different to a minimum detected threshold of the indicative parameter by the optical sensor;
- and
- emitting an alarm signal perceptible by a driver of a vehicle (V) if the measured value is comprised between the threshold value and the minimum value.
A piston-cylinder unit (10) of a vehicle (V), comprising a cylinder (20), a piston (30) and an electronic control unit (50), the piston-cylinder unit (10) configured for:
- measuring, by means of an optical sensor (40), a value of an indicative parameter of a color of a reference mark (33) positioned on a portion of the piston (30);
- comparing the measured value with a threshold value thereof different to a minimum detected threshold of the indicative parameter by the optical sensor;
- and
- emitting an alarm signal perceptible by a driver of a vehicle (V) if the measured value is comprised between the threshold value and the minimum value.
Dependencies are inferred from the claim text.