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US 12,752,584 B2Granted
Slip control via active suspension for optimization of braking and accelerating of a vehicle
AssigneeClearMotion, Inc.
InventorsAditya Chandrashekhar Chetty, Allen Chung-Hao Chen
Life of this patent
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Abstract
System and method for improving braking efficiency by increasing the magnitude of a frictional force between a tire of a vehicle wheel and a road surface. Braking efficiency may be improved by controlling the normal force applied on the wheel, with an active suspension actuator, based on the wheel's slip ratio.
Claims19
A method of operating a vehicle, the method comprising:
- determining a value of a parameter associated with a braking command of the vehicle;
- based on the value of the parameter, predicting vertical motion of a body of the vehicle associated with a braking event;
- and
- using an active suspension actuator of the vehicle to apply a force to a portion of the vehicle to mitigate the predicted vertical motion.
1 more element
A method of operating a vehicle, the method comprising:
- predicting expected vertical motion of a body of the vehicle;
- determining a slip ratio of a wheel of the vehicle;
- and
- based on both the expected vertical motion of the body of the vehicle and the slip ratio of the wheel, controlling an active suspension actuator to apply a force on the vehicle body to mitigate the expected vertical motion.
1 more element
A method of operating a vehicle, the method comprising:
- determining a slip ratio of a wheel of the vehicle;
- determining a magnitude of jounce or rebound of a body of the vehicle relative to the wheel;
- and
- controlling an active suspension actuator by determining a command based at least in part on a product of the slip ratio and a slip gain and on a product of the magnitude of jounce or rebound and a jounce or rebound gain.
1 more element
Dependencies are inferred from the claim text.