Global Patent Index - EP 2855239 A1

EP 2855239 A1 20150408 - SENSORY FEEDBACK WHEN DRIVING NEAR A VEHICLE'S HANDLING LIMITS

Title (en)

SENSORY FEEDBACK WHEN DRIVING NEAR A VEHICLE'S HANDLING LIMITS

Title (de)

SENSORISCHE RÜCKKOPPLUNG BEIM FAHREN NAHE DER FAHRVERHALTENSGRENZEN EINES FAHRZEUGS

Title (fr)

RÉTROACTION SENSORIELLE LORS DE LA CONDUITE PRÈS DE LIMITES DE MANIABILITÉ D'UN VÉHICULE

Publication

EP 2855239 A1 20150408 (EN)

Application

EP 12759731 A 20120918

Priority

  • EP 12170782 A 20120605
  • EP 2012068354 W 20120918
  • EP 12759731 A 20120918

Abstract (en)

[origin: WO2013182257A1] The present invention relates to a method of providing sensory feedback to a vehicle driver when driving close to the grip limits of a tire of a front vehicle wheel, the method comprising steps of: determining (42) a current lateral slip state ( Sy ) of the tire; estimating a tire-road coefficient of friction (mu), based on measurement (41 ) of a normal force (Fz) acting on the vehicle wheel and of at least one of a lateral force (Fy) and a longitudinal force (Fx) acting on the wheel; estimating (43) a peak lateral slip state (S ymax ) at which maximum tire lateral force can be generated, based on the determined current lateral slip state and the estimated friction coefficient; providing sensory feedback to the driver (45), whereby the feedback has a magnitude that varies as a function of the difference between the peak lateral slip state and the current lateral slip state.

IPC 8 full level

B62D 6/00 (2006.01); B60W 40/101 (2012.01)

CPC (source: EP)

B60W 50/14 (2013.01); B60W 50/16 (2013.01); B62D 6/008 (2013.01); B60W 40/101 (2013.01)

Citation (search report)

See references of WO 2013182257A1

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

Designated extension state (EPC)

BA ME

DOCDB simple family (publication)

WO 2013182257 A1 20131212; EP 2855239 A1 20150408

DOCDB simple family (application)

EP 2012068354 W 20120918; EP 12759731 A 20120918