Patent · US Active

Method for improving the control behavior of an electronic motor vehicle braking system

US11167738B2 · kind B2 · utility

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0References
7Claims
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Assignee

Inventors

Key dates

Filing dateApr 10, 2015
Grant dateNov 9, 2021
Priority date
Expiry dateApr 10, 2035

Classification

  • Technology area (CPC B)Performing Operations; Transporting
  • CPC primaryB60T2230/04
  • WIPO fieldTransport
  • WIPO sectorMechanical engineering

Abstract

The invention relates to a method for improving the control behavior of an electronic motor vehicle braking system which comprises at least a slip control function. Wheel dynamic information which is evaluated as a criterion for initiating a control intervention is used individually for each wheel and is compared with control thresholds for a pressure reduction phase, a pressure maintenance phase, and a pressure buildup phase for generating corresponding braking torques by means of a vehicle braking system. According to the invention, the expected acceleration change of a vehicle wheel is calculated from a pressure change at said wheel, said pressure change being caused by a control intervention; the actual acceleration change at the vehicle wheel, said acceleration change being caused by the pressure change, is determined from measured wheel speeds as wheel dynamic information; and the control behavior of the slip control is adapted when the actual acceleration change deviates from the expected acceleration change by a defined degree such that the deviation is minimized.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.