Invention Grant
- Patent Title: Active suspension system with electropermanent magnets
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Application No.: US15907386Application Date: 2018-02-28
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Publication No.: US10759246B1Publication Date: 2020-09-01
- Inventor: Jack Erdozain, Jr. , Jeffrey A. Sewell , Johnny L. Wall , Colin Szechy
- Applicant: Jack Erdozain, Jr. , Jeffrey A. Sewell , Johnny L. Wall , Colin Szechy
- Applicant Address: US CA Cupertino
- Assignee: Apple Inc.
- Current Assignee: Apple Inc.
- Current Assignee Address: US CA Cupertino
- Agency: Young Basile Hanlon & MacFarlane, P.C.
- Main IPC: B60G17/015
- IPC: B60G17/015 ; B60G17/005 ; H01F7/02 ; B60G17/0165 ; B60G17/06 ; H01F7/06 ; B60G17/033

Abstract:
A stability control system that detects a change in a vehicle operating characteristic and sends a stabilizing command to an actuator system based on identifying the change is described. The actuator system applies a first magnetic field having a predetermined strength to an electropermanent magnet for a predetermined duration based on receiving the stabilizing command. The first magnetic field transitions the electropermanent magnet from a first state to a second state. The electropermanent magnet generates a second magnetic field in the second state. The second magnetic field modifies at least one of a spring constant or a mechanical resistance of a suspension component within a suspension system of the vehicle, and the electropermanent magnet retains the second state after the predetermined duration in absence of the first magnetic field.
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