Invention Grant
- Patent Title: Method and apparatus for real time estimation of road surface friction coefficient
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Application No.: US13979996Application Date: 2013-03-12
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Publication No.: US08868310B2Publication Date: 2014-10-21
- Inventor: Christian Thomas Chimner , John Allen Grogg
- Applicant: Eaton Corporation
- Applicant Address: US OH Cleveland
- Assignee: Eaton Corporation
- Current Assignee: Eaton Corporation
- Current Assignee Address: US OH Cleveland
- Agency: Mei & Mark LLP
- International Application: PCT/US2013/030488 WO 20130312
- International Announcement: WO2013/158252 WO 20131024
- Main IPC: B60W30/02
- IPC: B60W30/02 ; B60W40/068 ; B60T8/172 ; B60W50/00

Abstract:
A computer program product, a method and an apparatus for detection of road surface friction coefficient for vehicle stability control are disclosed. The computer program product comprises stored instructions for receiving detected vehicle parameters from a vehicle; calculating a lookup value based on the detected vehicle parameters, the calculating comprising an recursive least square estimation; retrieving a road surface friction coefficient from a lookup table by matching the calculated lookup value to the road surface friction coefficient stored in the lookup table; calculating adjustments to the vehicle using the road surface friction coefficient; and outputting the adjustments to a vehicle control system for execution.
Public/Granted literature
- US08914213B2 Method and apparatus for real time estimation of road surface friction coefficient Public/Granted day:2014-12-16
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