IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0595649
(2012-08-27)
|
등록번호 |
US-8630746
(2014-01-14)
|
우선권정보 |
DE-10 2011 111 555 (2011-08-26) |
발명자
/ 주소 |
- Bruno, Francesco
- Franke, Olaf
|
출원인 / 주소 |
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
0 인용 특허 :
2 |
초록
▼
An operating method for a vehicle includes the steps of measurement of a filling level of a liquid, assignment of a measured filling level to a closest filling level threshold from a multiplicity of known filling level thresholds, wherein each filling level threshold represents a defined filling val
An operating method for a vehicle includes the steps of measurement of a filling level of a liquid, assignment of a measured filling level to a closest filling level threshold from a multiplicity of known filling level thresholds, wherein each filling level threshold represents a defined filling value, activation of at least one filling level threshold from the multiplicity of filling level thresholds by means of the measuring device, ascertainment of the frequention of an activation of a filling level threshold and/or a frequention of an assignment of a measured filling level to a closest filling level threshold, and determination of the filling level threshold which has a maximum frequention relative to a defined period of time. A realistic filling value is determined from which measuring errors which arise are eliminated.
대표청구항
▼
1. An operating method for a vehicle for determining realistic filling values of a liquid in a vehicle container, comprising the following steps: measuring a filling level of a liquid in a vehicle container by means of a measuring device;assigning a measured filling level to a closest filling level
1. An operating method for a vehicle for determining realistic filling values of a liquid in a vehicle container, comprising the following steps: measuring a filling level of a liquid in a vehicle container by means of a measuring device;assigning a measured filling level to a closest filling level threshold from a multiplicity of known filling level thresholds;activating a filling level threshold from the multiplicity of filling level thresholds by means of the measuring device;ascertaining the frequention of at least one of an activation of a filling level threshold and the frequention of an assignment of a measured filling level to a closest filling level threshold; anddetermining the filling level threshold which has a maximum frequention relative to a defined period of time so as to represent a realistic filling value. 2. The operating method according to claim 1, wherein each filling level threshold represents a defined filling value. 3. The operating method according to claim 1, wherein the filling level threshold is determined for the time during which the next determination is carried out. 4. The operating method according to claim 1, wherein the period of time is a dynamically dimensioned period of time, corresponding to a period of time in which a predetermined quantity of liquid has been consumed, and a reference value is used for the determination of the liquid consumption, said reference value being defined such that a predetermined reduction of pollutants in the exhaust gas of the vehicle is obtained. 5. The operating method according to claim 4, wherein the reference value is one of a dynamically dimensioned reference value and based on detected exhaust gas values or operating parameters of the vehicle, andis calculated by a control device of the vehicle. 6. The operating method according to claim 4, wherein the reference value corresponds to a reference quantity required to obtain a certain reduction of pollutants in the exhaust gas of the vehicle. 7. The operating method according to claim 1, wherein the period of time is dimensioned as a function of a reference value. 8. The operating method according to claim 1, wherein the at least one of the step of ascertaining and determining is carried out after a reference value has been used. 9. The operating method according to claim 1, wherein at least one of the steps of measuring, assigning, activating, ascertaining and determining is interrupted when the vehicle is in at least one of a standstill phase and a reference value does not indicate a removal of liquid. 10. The operating method according to claim 1, wherein at least one of the steps of measuring, assigning, activating, ascertaining and determining is carried out during the same standstill phase of the vehicle or while the vehicle is moving. 11. The operating method according to claim 1, additionally comprising extending the period of time if there is no unambiguous maximum frequention. 12. The operating method according to claim 11, wherein the period of time is extended if there are at least two maximum frequentions of equal value. 13. The operating method according to claim 11, wherein the period of time is extended dynamically. 14. The operating method according to claim 11, wherein the period of time is extended as a function of a reference value. 15. The operating method according to claim 1, wherein the frequention comprises the frequency of one of an activation and assignment. 16. The operating method according to claim 1, wherein the frequention comprises the duration of one of an activation and assignment. 17. The operating method according to claim 1, wherein the liquid is used for the aftertreatment of exhaust gases. 18. The operating method according to claim 17, wherein the liquid is a urea-water mixture. 19. The operating method according to claim 1, additionally comprising the step of calculating a removal of liquid as a function of one or more realistic filling values. 20. The operating method according to claim 19, additionally comprising the step of determining a first realistic filling value at a first instant and a second realistic filling value at a second instant, and wherein the difference between the first filling value and second filling value corresponds to a removal of liquid in the container. 21. The operating method according to claim 19, wherein the calculated removal of liquid is compared with a reference value and an operating limitation of the vehicle is activated if the calculated removal of liquid and the reference value differ. 22. The operating method according to claim 1, additionally comprising the step of an activating operating limitation of the vehicle if the realistic filling value differs from a reference value over a defined time interval,if the calculated removal of liquid falls below a reference value over a defined time interval, and/orif a removal of liquid is calculated from one or more realistic filling values, the removal of liquid being too small in order to obtain a certain reduction of pollutants in the exhaust gas of the vehicle. 23. The operating method according to claim 22, wherein the operating limitation is activated as a function of the engine operating period during which the realistic filling value differs from a reference value,during which the calculated removal of liquid falls below a reference value, and/orduring which a removal of liquid is too small in order to obtain a certain reduction of pollutants in the exhaust gas of the vehicle. 24. The operating method according to claim 1, wherein the filling level thresholds are discrete or the realistic filling value is discrete.
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