1. A wet wipe characterized in that it is impregnated with mixed ethers.
2. The wet wipe as claimed in claim 1, characterized in that it comprises mixed ethers of the formula (I),
2
in which R1 is an alkyl andor alkenyl radical having 1 to 22 carbon atoms, R2 is an alkyl radical having 1 to 12 carbon atoms or a benzyl radical, x and z, independently of one another, are 0 or numbers from 1 to 40 and y is 0 or numbers from 1 to 10, with the proviso that the sum of the carbon atoms in the radicals R1 and R2 is at least 4, and the sum of the indices x, y and z is different from 0.
3. The wet wipe as claimed in claims 1 andor 2, characterized in that it comprises the mixed ethers in amounts of 0.05 to 2% by weight, based on the wet wipe.
4. The wet wipe as claimed in at least one of claims 1 to 3, characterized in that it comprises further anionic, nonionic, cationic andor amphoteric or zwitterionic surfactants.
5. The wet wipe as claimed in claim 4, characterized in that it further comprises alkyl andor alkenyl oligoglycosides.
6. The wet wipe as claimed in claims 4 andor 5, characterized in that it comprises alkyl andor alkenyl oligoglycosides of the formula (II),
R3O-Gp (II)
in which R3 is an alkyl andor alkenyl radical having 4 to 22 carbon atoms, G is a sugar radical having 5 or 6 carbon atoms and p is a number from 1 to 10.
7. The wet wipe as claimed in at least one of claims 4 to 6, characterized in that it comprises the alkyl andor alkenyl oligoglycosides in amounts of from 0.05 to 2% by weight, based on the wet wipe.
8. The wet wipe as claimed in at least one of claims 4 to 7, characterized in that it comprises the mixed ethers and the alkyl andor alkenyl oligoglycosides in the weight ratio 10:90 to 90:10.
9. The wet wipe as claimed in at least one of claims 4 to 8, characterized in that it comprises further customary auxiliaries and additives.
10. The use of mixed ethers as impregnating agents for the production of wet wipes.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A rough road detection system for a vehicle, comprising:
a frequency domain module that converts a vector signal into a frequency domain signal;
an engine misfire module that determines whether an engine misfires based on at least one of a power and an energy of said frequency domain signal;
a rough road module that determines whether the vehicle is driving on a rough road based on at least one of said power and said energy of said frequency domain signal.
2. The rough road detection system of claim 1 further comprising:
an engine speed module that generates an engine speed signal based on a crank signal; and
a sampling module that that communicates with said engine speed module, that samples said engine speed signal at a fixed rate, and that generates a sampling signal.
3. The rough road detection system of claim 2 further comprising a filter module that communicates with said sampling module, that removes components from said sampling signal that are greater than a predetermined frequency, and that generates a filtered signal.
4. The rough road detection system of claim 3 further comprising a data reduction module that communicates with said filter module, that reduces said filtered signal to correspond with at least one engine cycle, and that generates a reduced data signal.
5. The rough road detection system of claim 4 further comprising a data buffer module that communicates with said data reduction module and that assembles samples of said reduced data signal to form said vector signal.
6. The rough road detection system of claim 5 further comprising a power spectrum module that communicates with said frequency domain module, that calculates the power spectrum of said frequency domain signal, and that generates a power spectrum signal.
7. The rough road detection system of claim 6 wherein said engine misfire module determines whether an engine misfires based on said power spectrum signal.
8. The rough road detection system of claim 6 further comprising an energy calculation module that communicates with said power spectrum module and that generates an energy signal based on said power spectrum signal.
9. The rough road detection system of claim 8 wherein said rough road module determines that the vehicle is driving on a rough road when said energy signal is greater than an energy threshold.
10. A method to detect a rough road condition for a vehicle, comprising:
converting a vector signal of engine speed samples into a frequency domain signal;
determining at least one of a power and an energy of said frequency domain signal;
determining whether an engine misfires based on at least one of said power and said energy of said frequency domain signal;
determining whether the vehicle is driving on a rough road based on at least one of said power and said energy of said frequency domain signal; and
generating a rough road condition signal based upon at least one of said determining whether said engine misfires and said determining whether said vehicle is driving on said rough road.
11. The method of claim 10 further comprising:
determining an engine speed and generating an engine speed signal; and
sampling said engine speed signal at a fixed rate and generating a sampling signal.
12. The method of claim 11 further comprising removing components from said sampling signal that are greater than a predetermined frequency and generating a filtered signal.
13. The method of claim 12 further comprising reducing said filtered signal to correspond with at least one engine cycle and generating a reduced data signal.
14. The method of claim 13 further comprising assembling samples of said reduced signal to form said vector signal.
15. The method of claim 14 further comprising calculating a power spectrum of said frequency domain signal and generating a power spectrum signal.
16. The method of claim 15 further comprising determining whether an engine misfires based on said power spectrum signal.
17. The method of claim 15 further comprising calculating an energy signal based on said power spectrum signal.
18. The method of claim 17 further comprising determining that the vehicle is driving on a rough road when said energy signal is greater than an energy threshold.