Exhaust gas purification system for a motor vehicle having a reducing agent storage tank, and associated operating method
First Claim
1. An exhaust gas purification system for a motor vehicle having a predetermined maintenance interval, comprising:
- a reducing agent storage tank for storing a reducing agent intended for exhaust gas purification, wherein the reducing agent storage tank is configured to have a capacity that is at least equal to a level predetermined by an assumed reducing agent consumption during the maintenance interval, andmeans for preventing a restarting of the vehicle after the vehicle has been switched off if the reducing agent storage tank is emptied.
3 Assignments
0 Petitions
Accused Products
Abstract
An exhaust gas purification system for a motor vehicle having a reducing agent storage tank, and an associated operating method. In particular, an exhaust gas purification system for a motor vehicle, for which predetermined maintenance intervals is provided. The system includes a reducing agent storage tank for storing a reducing agent intended for exhaust gas purification. A method for operating a motor vehicle having an exhaust gas purification system and a reducing agent storage tank for storing a reducing agent intended for the exhaust gas purification, which comprises predetermined maintenance work after predetermined maintenance intervals is also provided.
21 Citations
17 Claims
-
1. An exhaust gas purification system for a motor vehicle having a predetermined maintenance interval, comprising:
-
a reducing agent storage tank for storing a reducing agent intended for exhaust gas purification, wherein the reducing agent storage tank is configured to have a capacity that is at least equal to a level predetermined by an assumed reducing agent consumption during the maintenance interval, and means for preventing a restarting of the vehicle after the vehicle has been switched off if the reducing agent storage tank is emptied. - View Dependent Claims (2, 3, 4, 5, 6, 7)
-
-
8. A method for maintaining a motor vehicle having an exhaust gas purification system and a reducing agent storage tank for storing a reducing agent intended for exhaust gas purification, comprising:
-
preventing a restarting of the vehicle after the vehicle has been switched off if the reducing agent storage tank is emptied; unlocking a closure device for the reducing agent storage tank, wherein said closure device is configured to only be openable during a maintenance operation; and filling the reducing agent storage tank. - View Dependent Claims (9, 10)
-
-
11. A method for operating a motor vehicle having an exhaust gas purification system and a reducing agent storage tank for storing a reducing agent intended for exhaust gas purification, comprising:
-
operating the motor vehicle; switching the motor vehicle off; preventing a restarting of the vehicle after the vehicle has been switched off if the reducing agent storage tank is emptied; unlocking a closure device for the reducing agent storage tank, wherein said closure device is configured to only be openable during a maintenance operation; and filling the reducing agent storage tank.
-
-
12. A method for operating a motor vehicle having an exhaust gas purification system and a reducing agent storage tank for storing a reducing agent intended for exhaust gas purification, comprising:
-
operating the motor vehicle; determining the quantity of reducing agent in the reducing agent storage tank and sending a warning signal if this quantity drops below a predetermined minimum quantity; and switching the motor vehicle off; preventing a restarting of the vehicle after the vehicle has been switched off if the reducing agent storage tank is emptied; and unlocking a closure device for the reducing agent storage tank, wherein said closure device is configured to only be openable during a maintenance operation. - View Dependent Claims (13, 14, 15, 16, 17)
-
Specification