Active suspension system
AssigneeSears Manufacturing Company
InventorCole Thomas Brodersen
Life of this patent
Estimating the term…
Abstract
A vehicle seat suspension system including a base housing, a platform housing, and a linkage system moveably mounted between the base housing and the platform housing. The linkage system includes a center linkage, a rotary actuator drive system moveably connected to the center linkage where the rotary actuator drive system moves the center linkage over a range of travel, and a control system, where the control system actively signals the rotary actuator drive system to move the center linkage in a substantially linear relationship between an angle of rotation of the rotary actuator drive system and a vertical movement of the platform housing. The suspension system may also include sensors in operable communication with the control system.
Claims16
An active vehicle seat suspension comprising a base housing;
- a platform housing;
- a linkage system moveably mounted between the base housing and the platform housing, wherein the linkage system comprises a center linkage having opposing ends;
- a rotary actuator drive system moveably connected to the center linkage, wherein the rotary actuator drive system moves the center linkage over a range of travel where at least one of the opposing ends has a vertical travel corresponding to a vertical movement of the platform housing;
- and a control system, wherein the control system actively signals the rotary actuator drive system to move the center linkage in a substantially linear relationship between an angle of rotation of the rotary actuator drive system and the vertical movement of the platform housing.
A method of adjusting an active suspension system comprising the steps of:
- measuring a position and an acceleration of a platform housing;
- measuring an acceleration of a base housing;
- signaling the measurement of the position and acceleration of the platform housing and the acceleration of the base housing to a controller;
- calculating a movement value based on a desired suspension position;
- and
- activating a rotary actuator system to change the position of the active suspension system to the desired suspension position by moving a center linkage where at least one opposing end of the center linkage has a vertical travel corresponding to a vertical movement of the platform housing.
Dependencies are inferred from the claim text.