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US 12,629,980 B2Granted
E-sway algorithm
AssigneeFox Factory, Inc.
InventorsAndrew Peterson, Richard Strickland
Life of this patent
Estimating the term…
Abstract
Disclosed herein is a system comprising a memory, at least one sensor, and at least one processor. The at least one processor is configured to obtain vehicle information from the at least one sensor, and determine a vehicle operation mode based on the vehicle information. The processor will further format the vehicle operation mode in a computer readable format and present the vehicle operation mode in a computer readable format.
Claims21
A system for controlling suspension in a vehicle using a predictive cornering process, said system comprising:
- a suspension component;
- a memory coupled with said suspension component;
- at least one sensor coupled with said vehicle;
- at least one processor coupled with said at least one sensor, said at least one processor configured to:
- obtain vehicle information from said at least one sensor;
- determine a vehicle operation mode using said predictive cornering process based on said vehicle information, said predictive cornering process comprising:
- calculating a current lateral acceleration for said vehicle using a yaw rate and a current speed of said vehicle;
- obtaining deadband and gain values corresponding to said yaw rate to calculate a steady state cornering value for said vehicle;
- using steering wheel data and said current speed of said vehicle to calculate a requested lateral acceleration value for said vehicle;
- obtaining deadband and gain values corresponding to said steering wheel data;
- predicting peak angle request data for said vehicle based upon said steering wheel data;
- and;
- utilizing said peak angle request data to determine a peak cornering request for said vehicle;
- format said vehicle operation mode in a computer readable format;
- and
- present said vehicle operation mode in a computer readable format, wherein the processor automatically switches between operating modes based on the vehicle information and said peak cornering request for said vehicle.
13 more elements
A system for controlling components in a vehicle using a swayhook control process, said system comprising:
- one or more adjustable components configured to be coupled with said vehicle;
- a memory coupled with said one or more adjustable components;
- at least one sensor coupled with said vehicle;
- at least one processor coupled with said at least one sensor, said at least one processor configured to:
- receive vehicle information from said at least one sensor;
- generate a vehicle e-sway bar operation mode based on said vehicle information, using said swayhook control process, said swayhook control process comprising:
- calculating an average roll velocity for said vehicle using an absolute value of a velocity for each corner of said vehicle;
- obtaining deadband and gain values corresponding to said absolute value of said velocity for each corner of said vehicle;
- calculating a global roll angle for said vehicle using an absolute value of a corner position for each corner of said vehicle;
- obtaining deadband and gain values corresponding to said absolute value of said corner position for each corner of said vehicle;
- and
- calculate a peak cornering request for said vehicle;
- and
- automatically provide said vehicle e-sway bar operation mode to said one or more adjustable components for implementation thereon.
11 more elements
A method for receiving and implementing a computer readable vehicle operation mode using a predictive cornering process, said method comprising:
- receiving vehicle information from at least one sensor;
- generating a vehicle operation mode based on said vehicle information, wherein said vehicle operation mode is generated using said predictive cornering process, said predictive cornering process comprising:
- calculating a current lateral acceleration for said vehicle using a yaw rate and a current speed of said vehicle;
- obtaining deadband and gain values corresponding to said yaw rate to calculate a steady state cornering value for said vehicle;
- using steering wheel data and said current speed of said vehicle to calculate a requested lateral acceleration value for said vehicle;
- obtaining deadband and gain values corresponding to said steering wheel data;
- predicting peak angle request data for said vehicle based upon said steering wheel data;
- utilizing said peak angle request data to determine a peak cornering request for said vehicle;
- and
- automatically providing said vehicle operation mode to one or more adjustable components coupled with said vehicle for implementation thereon.
7 more elements
A system for electronically and automatically altering a roll gradient of a vehicle using a swayhook control process, said system comprising:
- at least one sensor coupled with said vehicle;
- and
- at least one processor coupled with said at least one sensor, said at least one processor configured to:
- receive vehicle lateral acceleration information from said at least one sensor;
- generate a vehicle e-sway bar operation mode based on said vehicle lateral acceleration information, using said swayhook control process, said swayhook control process comprising:
- receive and filter roll rate values for said vehicle;
- obtaining deadband and gain values corresponding to said roll rate values for said vehicle;
- receive and filter roll angle values for said vehicle;
- obtaining deadband and gain values corresponding to said roll angle values for said vehicle;
- and
- calculate a peak cornering request for said vehicle;
- and
- automatically provide said vehicle e-sway bar operation mode to one or more components of said vehicle to alter lateral acceleration of said vehicle based upon said roll rate values and said roll angle values for said vehicle.
10 more elements
Dependencies are inferred from the claim text.