Method and apparatus for measuring piston temperature
AssigneeHyundai Motor Company
InventorsKi Dong Kim, Kyoung Pyo Ha
Life of this patent
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Abstract
An apparatus for measuring a piston temperature can simultaneously measure a temperature of a plurality of pistons by utilizing a Bluetooth unit and occurrence of noise is prevented.
Claims10
A system for measuring temperature of a plurality of pistons of an engine, comprising:
- a plurality of sensor units including at least one thermocouple and a signal processor,
- wherein one end of the at least one thermocouple is mounted to at least one portion of the piston and the at least one thermocouple generates a voltage signal corresponding to a temperature of the portion, and
- the signal processor generates a piston temperature signal corresponding to the temperature of the piston on the basis of the voltage signals received from the thermocouple;
- a plurality of Bluetooth units receiving the piston temperature signal from the sensor units and having at least two communication members apart from each other, the piston temperature signal being transmitted from one of the communication members to the other via wireless communication in Bluetooth communication type;
- and
- a power supply unit supplying power to the sensor units and the Bluetooth units,
- wherein the plurality of sensor units and the plurality of Bluetooth units are provided in a number corresponding to a number of the plurality of pistons such that temperatures of the plurality of pistons can be simultaneously measured.
A method for measuring temperature of a plurality of pistons utilizing a system for measuring the temperature of a plurality of pistons comprising a plurality of thermocouples mounted to specific portions of each piston, a plurality of sensor units provided to respective pistons of an engine, and a plurality of Bluetooth units respectively connected to the plurality of sensor units, the method comprising:
- generating a plurality of voltage signals corresponding to temperatures of specific portions of the piston;
- measuring cold junction temperatures of the plurality of thermocouples and generating cold junction temperature signals corresponding to the measured cold junction temperatures of the plurality of thermocouples;
- generating piston temperature signals corresponding to the temperatures of the piston on the basis of the plurality of voltage signals and the cold junction temperature signals;
- and
- wirelessly sending out the generated piston temperature signals through Bluetooth communication.
Dependencies are inferred from the claim text.