Method and system for controlling an actuator for a loading surface that is adjustably mounted on a motor vehicle body

Patent metadata

Field	Value
Publication number	US-10112511-B2
Application number	US-201615051049-A
Country	US
Kind code	B2
Filing date	Feb 23, 2016
Priority date	Feb 23, 2015
Publication date	Oct 30, 2018
Grant date	Oct 30, 2018

Abstract

A method and a system are configured to control an actuator for imposing forces in an adjusting direction, in particular a vehicle longitudinal direction from a vehicle front towards a vehicle rear, onto a loading surface, such as a vehicle seat, which is adjustably mounted on a body of a motor vehicle. A collision-based event is anticipate or detected. An actuator is activated in response to detection of the collision-based event in order to activate an actuator-driven movement of the loading surface relative to the body in adjusting direction for influencing, and in particular decelerate a collision-based movement of the loading surface relative to the body against the adjusting direction.

First claim

What is claimed is:

1. A method for controlling an actuator via a controller in communication with a sensor and the actuator for imposing forces onto a loading surface in an adjusting direction from a first vehicle position to a second vehicle position, wherein the loading surface is adjustably-mounted in a vehicle body of a motor vehicle for movement in the adjusting direction, the method comprising:
detecting a collision-based event associated with the vehicle body; and
activating the actuator to generate an actuator-driven movement of the loading surface relative to the body in the adjusting direction to decelerate a collision-based movement of the loading surface relative to the body opposing the actuator-drive movement, wherein; the actuator-driven movement follows a preset profile to at least partially offset a movement of the loading surface arising from a rebound effect of the motor vehicle post the collision-based event.

2. The method according to claim 1 , further comprising:
detecting a state of collision of the motor vehicle; and
releasing a fixing mechanism of the loading surface when a state of collision is detected.

3. The method according to claim 1 further comprising:
detecting an imminent collision of the motor vehicle; and
activating the actuator in order to accelerate the loading surface in adjusting direction when an imminent collision is detected.

4. The method according to claim 3 further comprising activating the actuator beyond a stationary state of the motor vehicle in the adjusting direction to decelerate a movement of the loading surface relative to the body.

5. The method according to claim 1 wherein the actuator is activated before the imminent collision.

6. The method according to claim 1 , further comprising determining a permissible feed travel of the loading surface against the adjusting direction, and activating the actuator based on the determined permissible feed travel.

7. The method according to claim 6 , further comprising determining the permissible feed travel of the loading surface before the collision-based movement of the loading surface relative to the body against the adjusting direction.

8. The method according to claim 6 , further comprising determining the permissible feed travel of the loading surface during the collision-based movement of the loading surface relative to the body against the adjusting direction.

9. The method according to claim 1 , further comprising determining a starting position of the loading surface, and activating the actuator is activated based on the determined starting position.

10. The method according to claim 1 , further comprising determining a weight of a payload of the loading surface, and activating the actuator based on the determined payload weight.

11. The method according to claim 10 , wherein loading surface comprises a vehicle seat and the payload comprising an occupant weight.

12. The method according to claim 1 , further comprising activating the actuator based on a predetermined acceleration.

13. A motor vehicle with a body, a loading surface in the form of a vehicle seat, which is adjustably mounted on the body in an adjusting direction, and an actuator configured to impose a force onto the loading surface in the adjusting direction according to the method of claim 1 .

14. A computer program product with a program code which is stored on a non-transitory computer-readable medium, which when executed in a controller is configured to carry out the method according to claim 1 .

15. A system for imposing forces in an adjusting direction onto a vehicle seat adjustably mounted on a body of a motor vehicle, the system comprising:
a sensor configured to detect a collision-based event associated with the vehicle body;
an actuator configured to generate an actuator-driven movement of the vehicle seat relative to the body in an adjusting direction; and
a controller in communication with the sensor and the actuator, the controller configured to activate the actuator for decelerating a collision-based movement of the loading surface relative to the body against the adjusting direction in response to detection of a collision-based event, wherein;
the actuator is caused to follow a preset profile to at least partially offset a movement of the loading surface arising from a rebound effect of the motor vehicle post the collision-based event.

16. The system according to claim 15 wherein the sensor is configured to detect a state of collision of the motor vehicle, and the system further comprises a fixing mechanism having a release, wherein the controller is configured to operate the release for permitting movement of the vehicle seat in the adjusting direction in response to a detected state of collision.

17. The system according to claim 15 wherein the sensor is configured to detect an imminent collision of the motor vehicle, and wherein the controller is configured to activate the actuator in order to accelerate the vehicle seat in adjusting direction before the imminent collision when an imminent collision is detected.

18. The system according to claim 15 further comprising a sensor configured to determine a permissible feed travel of the vehicle seat against the adjusting direction, wherein the controller is configured to activate the actuator based on the determined permissible feed travel.

19. The system according to claim 18 , wherein the controller is configured to activate the actuator before a collision-based movement of the vehicle seat relative to the body against the adjusting direction.

20. The system according to claim 18 , wherein the controller is configured to activate the actuator during a collision-based movement of the vehicle seat relative to the body against the adjusting direction.

Assignees

• Gm Global Tech Operations Llc

Inventors

• Frommann Markus
• Mazur Oleg

Classifications

• B60N2/4279 Primary

  electric or electronic triggering · CPC title

• B60N2/4214

  longitudinal · CPC title

• B60N2/42736

  of the whole seat · CPC title

• B60R21/0136

  responsive to actual contact with an obstacle {, e.g. to vehicle deformation, bumper displacement or bumper velocity relative to the vehicle (monitoring crash strength in combination with passenger seat detection B60R21/01558)} · CPC title

• B60R21/01516

  using force or pressure sensing means · CPC title