Ford Global Technolgoies, LLC

Leonard Eber Carrier

Zachary Konchan

Erick Michael Lavoie

William Falconer

Hans Gangwar

Alexander McCollough

Method and apparatus are disclosed for traction control based on friction coefficient estimation. An example vehicle includes a plurality of sensors to measure qualities of a surface of a road and an anti-lock brake system module. The anti-lock brake system module (a) estimates confidence values for different road surface types based on the qualities of the surface of the road, (b) estimates a coefficient of friction between the road and tires of the vehicle based on the confidence values, and (c) adapt a traction control system by altering a target slip based on the coefficient of friction.

Traction control based on friction coefficient estimation

A map, including potential obstacles, can be generated by a computing device in a vehicle. An estimated coefficient of friction between the vehicle wheels and a roadway surrounding a stuck vehicle can be generated based on sensor data. A path can be determined based on the map, and the stuck vehicle can be operated based on the path and a determined slip ratio based on the vehicle wheels to unstick the stuck vehicle.

Vehicle escape

An autonomous vehicle controller includes a memory and a processor programmed to execute instructions stored in the memory. The instructions include detecting that a host vehicle is on a low friction surface, generating a composite map representing locations of a plurality of high friction surfaces, selecting one of the plurality of high friction surfaces, and autonomously navigating the host vehicle to the selected high friction surface by executing a slip control process.

Autonomous vehicle trajectory planning

A system for vehicle pitch control during braking includes a pitch component and a rebound component. The pitch component is configured to determine that a vehicle has a forward pitch during braking. The rebound component is configured to, in response to the vehicle achieving a substantially zero forward velocity, apply brake pressure to one or more non-driven wheels using one or more brakes and apply reverse torque to one or more driven wheels using a motor or engine.

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Dearborn, MI, United States of America

Leonard Eber Carrier