Anti tampering arrangement
OwnerPeter Alleving, Anders Ungerinventors
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Abstract
The present invention relates to a system and a method for determining degradation of ozone conversion efficiency of an ozone-converting device in a vehicle. The system includes a heat-exchanging device, such as a radiator, covered with a catalytic coating capable of reducing ozone of the ambient air. The system further includes at least one temperature sensor for measuring the temperature of heat-exchanging device. The temperature is compared to a reference temperature in order to determine degradation in the devices ozone-converting efficiency.
Claims11
An emission control system for an internal combustion engine, comprising:
- a heat-exchanging device having a coating capable of reducing ozone in ambient air;
- a thermostat;
- at least one sensor providing a measurement of a temperature of said heat-exchanging device;
- and
- a controller providing an indication of device degradation based on a comparison of said temperature measurement to a predetermined reference temperature.
A method for measuring functionality of an ozone-converting device in a vehicle, comprising:
- measuring a temperature of the device;
- measuring a reference temperature;
- and
- determining if at least one predetermined condition referring to data of a relationship between said temperature of said and said reference temperature is fulfilled.
Dependencies are inferred from the claim text.