Retractable steering column with dual actuators

Patent metadata

Field	Value
Publication number	US-9849904-B2
Application number	US-201514814739-A
Country	US
Kind code	B2
Filing date	Jul 31, 2015
Priority date	Jul 31, 2015
Publication date	Dec 26, 2017
Grant date	Dec 26, 2017

Abstract

According to one exemplary embodiment of the present invention a steering column assembly is provided. The steering column assembly includes a steering column shaft. The steering column assembly further includes a retraction actuator to translate an adjustment actuator mounting plate within a retraction range. The steering column further includes an adjustment actuator mounted on the adjustment actuator mounting plate to translate a steering column bracket within an adjustment range. The steering column bracket translates the steering column shaft within a steering column shaft movement range. The steering column shaft movement range is a sum of the retraction range and the adjustment range.

First claim

Having thus described the invention, it is claimed:

1. A steering column assembly comprising:
a steering column shaft;
a retraction actuator to translate an adjustment actuator mounting plate within a retraction range;
an adjustment actuator mounted on the adjustment actuator mounting plate to translate a steering column bracket within an adjustment range, the steering column bracket configured to translate the steering column shaft within a steering column shaft movement range, the steering column shaft movement range being a sum of the retraction range and the adjustment range.

2. The steering column assembly of claim 1 , wherein the retraction actuator translates the adjustment actuator mounting plate within the retraction range and the adjustment actuator translates the steering column bracket within the adjustment range to correspond to a memory position within the steering column shaft movement range.

3. The steering column assembly of claim 2 , wherein the retraction actuator translates the adjustment actuator mounting plate to a deployed position within the retraction range.

4. The steering column assembly of claim 2 , wherein the retraction actuator translates the adjustment actuator mounting plate to a non-deployed position within the retraction range.

5. The steering column assembly of claim 1 , wherein the adjustment actuator mounting plate translates on a mounting plate rail.

6. The steering column assembly of claim 1 , wherein the retraction actuator translates the adjustment actuator mounting plate and the adjustment actuator translates the steering column bracket concurrently.

7. The steering column assembly of claim 1 , wherein the retraction actuator and the adjustment actuator are activated in response to an autonomous driving event.

8. A method to deploy and retract a steering column shaft, the method comprising:
translating an adjustment actuator within a retraction range via a retraction actuator;
translating a steering column bracket within an adjustment range via the adjustment actuator; and
translating a steering column shaft within a steering column shaft movement range via the steering column bracket, the steering column shaft movement range being a sum of the retraction range and the adjustment range.

9. The method of claim 8 , further comprising translating an adjustment actuator mounting plate within the retraction range via the retraction actuator and translating the steering column bracket within the adjustment range via the adjustment actuator to correspond to a memory position within the steering column shaft movement range.

10. The method of claim 9 , further comprising translating the adjustment actuator mounting plate to a deployed position within the retraction range via the retraction actuator.

11. The method of claim 9 , further comprising translating the adjustment actuator mounting plate to a non-deployed position within the retraction range via the retraction actuator.

12. The method of claim 9 , further comprising translating the adjustment actuator mounting plate on a mounting plate rail.

13. The method of claim 9 , further comprising concurrently translating the adjustment actuator mounting plate via the retraction actuator and translating the steering column bracket via the adjustment actuator.

14. The method of claim 8 , further comprising activating the retraction actuator and the adjustment actuator in response to an autonomous driving event.

15. A vehicle comprising:
a steering column assembly comprising:
a steering column shaft;
a column jacket;
a steering wheel coupled to the steering column shaft;
a retraction actuator to translate an adjustment actuator mounting plate within a retraction range; and
an adjustment actuator mounted on the adjustment actuator mounting plate to translate a steering column bracket within an adjustment range, the steering column bracket configured to translate the steering column shaft within a steering column shaft movement range, the steering column shaft movement range being a sum of the retraction range and the adjustment range.

16. The vehicle of claim 15 , wherein the retraction actuator translates the adjustment actuator mounting plate within the retraction range and the adjustment actuator translates the steering column bracket within the adjustment range to correspond to a memory position within the steering column shaft movement range.

17. The vehicle of claim 16 , wherein the retraction actuator translates the adjustment actuator mounting plate to a deployed position within the retraction range.

18. The vehicle of claim 16 , wherein the retraction actuator translates the adjustment actuator mounting plate to a non-deployed position within the retraction range.

19. The vehicle of claim 15 , wherein the adjustment actuator mounting plate translates on a mounting plate rail.

20. The vehicle of claim 15 , wherein the retraction actuator translates the adjustment actuator mounting plate and the adjustment actuator translates the steering column bracket concurrently.

Assignees

• Steering Solutions Ip Holding

Inventors

• Rouleau James E

Classifications

• B62D1/181 Primary

  with power actuated adjustment, e.g. with position memory · CPC title

• B60D1/185

  comprising a cable or chain winding device (B60D1/38 takes precedence) · CPC title

• B62D1/187

  with tilt adjustment; with tilt and axial adjustment (B62D1/183, B62D1/19 takes precedence) · CPC title

• B62D1/183

  adjustable between in-use and out-of-use positions, e.g. to improve access · CPC title