VEHICULAR ATMOSPHERE PURIFYING APPARATUS
First Claim
1. A vehicular atmosphere purifying apparatus comprising:
- a vehicle component that is arranged at a location at which a flow path of atmospheric air is formed while a vehicle is running;
an ozone purifier that is provided on the vehicle component and includes activated charcoal;
a humidity sensor that acquires a parameter that is associated with a moisture amount that is adsorbed on the activated charcoal or that desorbs therefrom;
a deterioration determination device that determines deterioration of the ozone purifier using the parameter; and
a sensor heating device that heats the humidity sensor utilizing heat that is generated by a heat source apparatus that is mounted in the vehicle.
1 Assignment
0 Petitions
Accused Products
Abstract
A vehicular atmosphere purifying apparatus diagnoses deterioration in the performance of an ozone purifier. In a routine, when it is determined that there is a deterioration diagnosis request, the amount of moisture that has already accumulated at ozone purification sites of activated charcoal at the time of the request is calculated. If the accumulated moisture amount is equal to or greater than a predetermined amount, it is determined whether the state is such that calculation of a desorbed moisture amount is possible. If it is determined that calculation of the desorbed moisture amount is possible, the desorbed moisture amount is calculated, and the calculated desorbed moisture amount and a deterioration determination value are compared. If the desorbed moisture amount is less than the deterioration determination value, it is determined that the activated charcoal has deteriorated, and an MIL is lit.
17 Citations
16 Claims
-
1. A vehicular atmosphere purifying apparatus comprising:
-
a vehicle component that is arranged at a location at which a flow path of atmospheric air is formed while a vehicle is running; an ozone purifier that is provided on the vehicle component and includes activated charcoal; a humidity sensor that acquires a parameter that is associated with a moisture amount that is adsorbed on the activated charcoal or that desorbs therefrom; a deterioration determination device that determines deterioration of the ozone purifier using the parameter; and a sensor heating device that heats the humidity sensor utilizing heat that is generated by a heat source apparatus that is mounted in the vehicle. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14, 15)
-
-
13. (canceled)
-
16. A vehicular atmosphere purifying apparatus comprising:
-
a vehicle component that is arranged at a location at which a flow path of atmospheric air is formed while a vehicle is running; an ozone purifier that is provided on the vehicle component and includes activated charcoal; a temperature sensor and a humidity sensor that acquire a parameter that is associated with a moisture amount that is adsorbed on the activated charcoal or that desorbs therefrom; a deterioration determination device that determines deterioration of the ozone purifier using the parameter; and a sensor heating device that heats the humidity sensor utilizing heat that is generated by a heat source apparatus that is mounted in the vehicle.
-
Specification