Telescoping multi-section lockable link for a vehicle suspension stabilizer bar

Patent metadata

Field	Value
Publication number	US-12319112-B1
Application number	US-202418647231-A
Country	US
Kind code	B1
Filing date	Apr 26, 2024
Priority date	Apr 26, 2024
Publication date	Jun 3, 2025
Grant date	Jun 3, 2025

Abstract

A vehicle includes a vehicle body arranged along a first axis and first and second road wheels, each mounted on a second axis perpendicular to the first axis. The vehicle also includes a stabilizer bar mounted to the vehicle body. The vehicle additionally includes respective first and second telescoping multiple-section links connecting the stabilizer bar to corresponding first and second road wheels. Each of the first and the second telescoping multiple-section links is configured to selectively operate in a first mode and a second mode. In the first mode, telescoping of each of the first and the second multiple-section links is locked to operatively connect the first road wheel to the second road wheel via the stabilizer bar. In the second mode, the telescoping of each of the first and the second multiple-section links is unlocked to operatively disconnect the first and second road wheels from the stabilizer bar.

First claim

What is claimed is:

1. A vehicle comprising:
a vehicle body arranged along a first axis;
a first road wheel and a second road wheel, each mounted on a second axis perpendicular to the first axis and configured to maintain contact with a road surface;
a stabilizer bar mounted to the vehicle body configured to generate a predetermined vehicle roll-stiffness;
a first telescoping multiple-section link connecting the stabilizer bar to the first road wheel; and
a second telescoping multiple-section link connecting the stabilizer bar to the second road wheel, wherein:
each of the first and the second telescoping multiple-section links is configured to selectively operate in a first mode and a second mode;
in the first mode, telescoping of each of the first and the second multiple-section links is locked to operatively connect the first road wheel to the second road wheel via the stabilizer bar; and
in the second mode, the telescoping of each of the first and the second multiple-section links is unlocked to operatively disconnect the first road wheel and the second road wheel from the stabilizer bar; and

wherein each of the first and the second telescoping multiple-section links includes:
a first, a second, and a third section, wherein the first section is configured to selectively extend into and retract from the second section and the second section is configured to selectively extend into and retract from the third section; and
a sensor arranged internally to the respective telescoping multiple-section link, facing the corresponding first section, and configured to detect a length of the corresponding link.

2. The vehicle according to claim 1 , further comprising a first reservoir and a second reservoir, wherein the first and second reservoirs are configured to supply a fluid to the respective first and second telescoping multiple-section links to vary the length thereof.

3. The vehicle according to claim 1 , wherein each sensor is mounted to the third section of the corresponding link.

4. The vehicle according to claim 2 , wherein each of the first and second reservoirs is configured to supply the fluid to the third section of the corresponding telescoping multiple-section link.

5. The vehicle according to claim 4 , wherein the fluid used to vary the length of the first and second telescoping multiple-section links is a hydraulic fluid.

6. The vehicle according to claim 5 , wherein each of the first and the second telescoping multiple-section links includes a servo-operated valve configured to regulate transfer of the hydraulic fluid between the respective reservoir and the corresponding third section.

7. The vehicle according to claim 4 , wherein the fluid used to vary the length of the first and second telescoping multiple-section links is a magneto-rheological fluid.

8. The vehicle according to claim 7 , wherein the third section includes a magnet array configured to energize the magneto-rheological fluid.

9. The vehicle according to claim 1 , further comprising an electronic controller programmed to select between the first mode and the second mode of operation of the first and the second telescoping multiple-section links.

10. A system for controlling suspension articulation in a vehicle having a vehicle body arranged along a first axis, and first and second road wheels, each mounted on a second axis perpendicular to the first axis and configured to maintain contact with a road surface, the system comprising:
a stabilizer bar mounted to the vehicle body;
a first telescoping multiple-section link connecting the stabilizer bar to the first road wheel;
a second telescoping multiple-section link connecting the stabilizer bar to the second road wheel, wherein:
each of the first and the second telescoping multiple-section links is configured to selectively operate in a first mode and a second mode;
in the first mode, telescoping of each of the first and the second multiple-section links is locked to operatively connect the first road wheel to the second road wheel via the stabilizer bar; and
in the second mode, the telescoping of each of the first and the second multiple-section links is unlocked to operatively disconnect the first road wheel and the second road wheel from the stabilizer bar; and
an electronic controller programmed to select between the first mode and the second mode of operation of the first and the second telescoping multiple-section links; and

wherein each of the first and the second telescoping multiple-section links includes:
a first, a second, and a third section, wherein the first section is configured to selectively extend into and retract from the second section and the second section is configured to selectively extend into and retract from the third section; and
a sensor arranged internally to the respective telescoping multiple-section link, facing the corresponding first section, and configured to detect a length of the corresponding link.

11. The system according to claim 10 , further comprising a first reservoir and a second reservoir, wherein the first and second reservoirs are configured to supply a fluid to the respective first and second telescoping multiple-section links to vary the length thereof.

12. The system according to claim 10 , wherein each sensor is mounted to the third section of the corresponding link.

13. The system according to claim 11 , wherein each of the first and second reservoirs is configured to supply the fluid to the third section of the corresponding telescoping multiple-section link.

14. The system according to claim 13 , wherein the fluid is a hydraulic fluid.

15. The system according to claim 14 , wherein each of the first and the second telescoping multiple-section links includes a servo-operated valve configured to regulate transfer of the hydraulic fluid between the respective reservoir and the corresponding third section.

16. The system according to claim 13 , wherein the fluid is a magneto-rheological fluid.

17. The system according to claim 16 , wherein the third section includes a magnet array configured to energize the magneto-rheological fluid.

18. A telescoping multiple-section stabilizer bar link comprising:
a first section, second section, and third section, wherein the first section is configured to selectively extend into and retract from the second section and the second section is configured to selectively extend into and retract from the third section;
a reservoir configured to supply a fluid to vary a length of the multiple-section stabilizer bar link via telescoping of the first, second, and third sections;
a sensor arranged internally to the respective telescoping multiple-section link, facing the corresponding first section, and configured to detect the length of the stabilizer bar link;
wherein:
the telescoping multiple-section stabilizer bar link is configured to selectively operate in a first mode and a second mode;
in the first mode, extension and retraction of the first, second, and third sections is locked; and
in the second mode, the extension and retraction of the first, second, and third sections is unlocked.

19. The telescoping multiple-section stabilizer bar link according to claim 18 , wherein the reservoir is mounted to the third section of the link.

20. The telescoping multiple-section stabilizer bar link according to claim 18 , wherein the sensor is mounted to the third section of the link.

Assignees

• Gm Global Tech Operations Llc

Inventors

• Marble Robert P
• Saylor Brian K

Classifications

• B60G21/0551

  Mounting means therefor · CPC title

• B60G21/055 Primary

  Stabiliser bars · CPC title

• B60G2400/252

  vertical · CPC title

• B60G2400/106

  longitudinal with regard to vehicle, e.g. braking · CPC title

• B60G2400/104

  lateral or transversal with regard to vehicle · CPC title