Vehicle safety system

• US 8,126,613 B2
• Filed: 08/25/2008
• Issued: 02/28/2012
• Est. Priority Date: 08/25/2008
• Status: Active Grant

• Current Assignee: ZF CV Systems Europe BV
• Original Assignee: Wabco GmbH (Wabco Holdings Incorporated)
• Inventors: Wohltmann, Dirk, Wolf, Thomas
• Primary Examiner(s): Brown, Drew
• Application Number:
  US12/229,702
• Publication Number:
  US 20100049406A1
• Time in Patent Office: 1,282 Days
• Field of Search: 701/46, 701/45, 280/735, 280/5.519
• US Class Current: 701/46
• CPC Class Codes: B60R 2021/01272 Belt tensioners
• CPC Class Codes: B60R 21/0134 responsive to imminent contact with an obstacle , e.g. using radar systems
• CPC Class Codes: B60T 8/1755 Brake regulation specially adapted to control the stability of the vehicle, e.g. taking into account yaw rate or transverse acceleration in a curve road vehicle drive control systems for control of driving stability otherwise than by controlling a particular sub-unit B60W30/02
• CPC Class Codes: B60W 2520/105 Longitudinal acceleration
• CPC Class Codes: B60W 2520/125 Lateral acceleration
• CPC Class Codes: B60W 2554/801 Lateral distance

Abstract

A vehicle safety system comprising a vehicle stability-regulating system, one or more secondary safety components and an electronic interface. The electronic interface communicates with both the vehicle stability-regulating system and the secondary safety components. The electronic interface receives data from the vehicle stability-regulating system and controls the operating condition of the secondary safety components based thereon.

Claims

1. A safety system for a vehicle, the system comprising a stability-regulating system, at least one secondary safety component, and an electronic interface in operative communication with both said stability-regulating system and said at least one secondary safety component, said at least one secondary safety component being adapted to occupy at least a normal state, a lower transitional state, a higher transitional state, and a safety state, said lower transitional state and said higher transitional state being between said normal state and said safety state, said electronic interface being adapted to direct said at least one secondary safety component to occupy said lower transitional state when regulating variable data received from said stability-regulating system is between a first threshold and a second threshold and to occupy said higher transitional state when said regulating variable data is between said second threshold and a third threshold.

2. The safety system according to claim 1, wherein said stability-regulating system comprises at least one of an ESC system, an ABS, a CMS, an LDW system, an RSC system, a distance stability-regulating system, and a TPM system.

3. The safety system according to claim 1, said regulating variable data further comprising at least one of longitudinal acceleration, lateral acceleration, distance to another object, time to collision with another object, slip angle, yaw, yaw rate, steering angle, lane departure warning signals, brake control signals, engine control signals, brake light signals, activation of a stability regulator, and functional status of said stability-regulating system.

4. The safety system according to claim 1, wherein said vehicle comprises at least one seat, and said at least one secondary safety component comprises a seat belt and a seat belt tightener.

5. The safety system according to claim 1, wherein said vehicle comprises at least one seat, and said at least one secondary safety component comprises a seat position adjuster.

6. The safety system according to claim 1, wherein said vehicle comprises at least one seat, and said at least one secondary safety component comprises a seat inflater/deflater.

7. The safety system according to claim 1, wherein said electronic interface is integrated into said stability-regulating system.

8. The safety system according to claim 1, wherein said electronic interface is integrated into said at least one secondary safety component.

9. The safety system according to claim 1, said first threshold being associated with said normal state and said lower transitional state, said second threshold being associated with said lower transitional state and said higher transitional state, said third threshold being associated with said higher transitional state and said safety state, wherein said electronic interface is further adapted to effect a transition of said at least one secondary safety component from said normal state to said lower transitional state, from said lower transitional state to said higher transitional state, and from said higher transitional state to said safety state in a stepwise manner.

10. The safety system according to claim 1, wherein said electronic interface is further adapted to control said at least one secondary safety component to occupy a distance warning transitional state between said normal state and said safety state when said regulating variable data indicates a distance between said vehicle and an object being less than a predetermined distance, said distance warning transitional state being different from said lower transitional state and said higher transitional state.

11. The safety system according to claim 1, said at least one secondary safety component being further adapted to occupy continuous states between said normal state and said safety state, and said electronic interface being further adapted to direct said at least one secondary safety component through each of said continuous states based on said regulating variable data.

12. The safety system according to claim 1, wherein said at least one secondary safety component comprises a seat belt tensioner and said regulating variable data comprises lateral acceleration, wherein said first threshold is approximately 0.2 g and said lower transitional state comprises said seat belt tensioner being tightened at a first percentage, and wherein said third threshold is approximately 0.4 g and said higher transitional state comprises said seat belt tensioner being tightened at a second percentage higher than said first percentage.

13. The safety system according to claim 1, wherein said at least one secondary safety component comprises a seat belt tensioner and said regulating variable data comprises longitudinal deceleration, wherein said first threshold is approximately 0.15 g and said lower transitional state comprises said seat belt tensioner being tightened at a first percentage, and wherein said third threshold is approximately 0.5 g and said higher transitional state comprises said seat belt tensioner being tightened at a second percentage higher than said first percentage.

14. In a vehicle including a stability-regulating system and at least one secondary safety component, said at least one secondary safety component being adapted to occupy at least a normal state, a lower transitional state, a higher transitional state, and a safety state, said lower transitional state and said higher transitional state being between said normal state and said safety state, a method for effecting occupant safety comprising the steps of communicating regulating variable data generated by said stability-regulating system to said at least one secondary safety component and controlling said at least one secondary safety component to occupy said lower transitional state when said regulating variable data is between a first threshold and a second threshold and to occupy said higher transitional state when said regulating variable data is between said second threshold and a third threshold.

15. The method according to claim 14, wherein said step of controlling said at least one secondary safety component comprises at least one of automatically tightening and loosening at least one seat belt of said vehicle.

16. The method according to claim 14, wherein said step of controlling said at least one secondary safety component comprises automatically adjusting a position of at least one seat of said vehicle.

17. The method according to claim 14, wherein said step of controlling said at least one secondary safety component comprises at least one of automatically inflating and deflating at least one seat of said vehicle.

18. The method according to claim 14, said first threshold being associated with said normal state and said lower transitional state, said second threshold being associated with said lower transitional state and said higher transitional state, said third threshold being associated with said higher transitional state and said safety state, said method further comprising controlling said at least one secondary safety component from said normal state to said lower transitional state, from said lower transitional state to said higher transitional state, and from said higher transitional state to said safety state in a stepwise manner.

19. The method according to claim 14, further comprising controlling said at least one secondary safety component to occupy a distance warning transitional state between said normal state and said safety state when said regulating variable data indicates a distance between said vehicle and an object being less than a predetermined distance, said distance warning transitional state being different from said lower transitional state and said higher transitional state.

20. The method according to claim 14, said said at least one secondary safety component being further adapted to occupy continuous states at least between said normal state and said safety state, said method further comprising controlling said at least one secondary safety component through each of said continuous states based on said regulating variable data.