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US 12,441,149 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.
Claims17
A method for controlling an active suspension system of a vehicle, comprising:
- calculating a first slip ratio for a first wheel of the vehicle based on information from at least one sensor;
- comparing, by a processor, the first slip ratio to a threshold;
- and
- when the first slip ratio exceeds the threshold, driving, based on a first command from the processor, a first actuator associated with the first wheel to reduce the first slip ratio to a level below the threshold.
1 more element
A method for controlling an active suspension system of a vehicle having a plurality of actuators associated with a plurality of wheels respectively, the method comprising:
- determining, based on at least one sensor, a plurality of slip ratios for each of the plurality of wheels;
- based on the plurality of slip ratios, estimating variations in a distribution of a normal load on one or more wheels;
- controlling, by a processor, a distribution of a plurality of normal loads on the plurality of wheels based on the plurality of slip ratios;
- and
- providing, by the processor, a command to each of the plurality of actuators configured to reduce a variation in the distribution of a distribution of slip ratio magnitudes.
2 more elements
Dependencies are inferred from the claim text.