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|Title:||Process and system for determination of friction/slip characteristics of road vehicle tires|
|Abstract:||For the determination of the friction/slip characteristics of the tires of a road vehicle which is equipped with an antilock system designed for an individual wheel control, in an initial phase of a controlled braking, only the wheel brake of an individual vehicle wheel is acted upon by brake pressure and the latter is dimensioned so that the result is the initial retardation in accordance with the driver's wish. During this initial test phase of the braking, the absolute brake slip .lambda..sub.B as well as the friction utilization .mu..sub.B linked therewith is continuously determined as soon as, as a result of just the braking of the test wheel, the vehicle retardation z increases no further and/or the braked vehicle wheel is more strongly retarded than corresponds to a predetermined threshold value, the test braking is interrupted and the braking is continued by pressure action on the further vehicle wheels; corresponding test braking phases are carried out in cyclic sequence for all guidance wheels.|
|Inventor(s):||Burckhardt; Manfred (Waiblingen, DE), Eilert; Gerd (Schwaikheim, DE), Freitag; Rainer (Nuertingen, DE), Mueller; Armin (Backnang, DE), Schoeb; Reinhold (Filderstadt, DE), Spiecker; Rainer (Kernen, DE), Kazan; Sinan (Esslingen, DE), Zimmer; Richard (Fellbach, DE)|
|Assignee:||Mercedes-Benz AG (DE)|
Patent Claim Types:|
see list of patent claims
|Foriegn Application Priority Data|
|Foreign Country||Foreign Patent Number||Foreign Patent Date|
|Germany||42 00 046.7||Jan 3, 1992|
|Country||Document Number||Estimated Expiration||Supplementary Protection Certificate||SPC Country||SPC Expiration|
| This preview shows a limited data set|
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The estimated expiration dates shown above are derived by simply adding 20 years to the priority date.
Due to the complexity of determining patent expirations even in a single country, compounded by the diversity of global patent laws, it is advisable to have patent counsel verify freedom to operate.
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