Method for operating a chassis regulating system and a device to carry out the method

• US 7,392,116 B2
• Filed: 08/23/2004
• Issued: 06/24/2008
• Est. Priority Date: 08/25/2003
• Status: Expired due to Fees

• Current Assignee: TRW Automotive GmbH (Apollo Global Management, Inc.)
• Original Assignee: TRW Automotive GmbH (Apollo Global Management, Inc.)
• Inventors: Kesselgruber, Dirk
• Primary Examiner(s): ARTHUR JEANGLAUDE, GERTRUDE
• Application Number:
  US10/924,335
• Publication Number:
  US 20050055148A1
• Time in Patent Office: 1,401 Days
• Field of Search: 701/1, 701/41, 701/70, 701/72, 701/79, 701/95, 701/110, 180/197, 180/204, 180/252
• US Class Current: 701/1
• CPC Class Codes: B60T 8/24 responsive to vehicle inclination or change of direction, e.g. negotiating bends using electrical circuitry or regulation means B60T8/17

Abstract

A method for operating a chassis regulating system of a vehicle, in which a control quantity is generated for an actuator, includes providing a first signal, which is representative of the transverse acceleration of the vehicle, providing a second signal, which is representative of the steering lock angle, providing a third signal, which is representative of the speed of the vehicle, allocating a weighting factor for the amplitude of the first signal, generating an estimated transverse acceleration signal from the second signal and the third signal, generating a weighted estimation signal by multiplying the estimated transverse acceleration signal with the weighting factor, and generating the control quantity by additive superimposing of the weighted estimation signal with the first signal.

Claims

1. A method for operating a chassis regulating system of a vehicle, in which a control quantity is generated for an actuator, the method comprising the following steps:

providing a first signal, which is representative of a transverse acceleration of the vehicle,

providing a second signal, which is representative of a steering lock angle,

providing a third signal, which is representative of a speed of the vehicle,

allocating a weighting factor for an amplitude of the first signal,

generating an estimated transverse acceleration signal from the second signal and the third signal,

generating a weighted estimation signal by multiplying the estimated transverse acceleration signal with a weighting factor, and

generating the control quantity by additive superimposing of the weighted estimation signal with the first signal.

2. The method according to claim 1, characterized in that the first signal is low-pass filtered before the allocating of the weighting factor and before the additive superimposing with the weighted estimation signal.

3. The method according to claim 1, characterized in that the second signal is high-pass filtered before the generating of the estimated transverse acceleration signal.

4. The method according to claim 1, characterized in that the allocating of the weighting factor is carried out in accordance with a given function or table.

5. A device for carrying out the method according to claim 1, characterized in that the device comprises an arrangement for allocating the weighting factor, a transverse acceleration estimation arrangement for generating the estimated transverse acceleration signal, an arrangement for the multiplication of the estimated transverse acceleration signal with the weighting factor and an arrangement for the additive superimposing of the weighted estimation signal with the first signal.

6. The device according to claim 5, characterized in that the device comprises a low-pass filter for low-pass filtering of the first signal.

7. The device according to claim 5, characterized in that the device comprises a high-pass filter for high-pass filtering of the second signal.

8. The device according to claim 5, characterized in that the device comprises a transverse acceleration sensor to provide the first signal.

9. The device according to claim 5, characterized in that the device comprises a steering angle sensor to provide the second signal.

10. The device according to claim 5, characterized in that the device comprises a speed sensor to provide the third signal.

11. A device for operating a chassis regulating system of a vehicle, in which a control quantity is generated for an actuator according to a method comprising the following steps:

providing a first signal, which is representative of a transverse acceleration of the vehicle,

providing a second signal, which is representative of a steering lock angle,

providing a third signal, which is representative of a speed of the vehicle,

allocating a weighting factor for an amplitude of the first signal,

generating an estimated transverse acceleration signal from the second signal and the third signal,

generating a weighted estimation signal by multiplying the estimated transverse acceleration signal with the weighting factor, and

generating the control quantity by additive superimposing of the weighted estimation signal with the first signal,

the device comprising;

an arrangement for allocating the weighting factor;

a transverse acceleration estimation arrangement for generating the estimated transverse acceleration signal;

an arrangement for the multiplication of the estimated transverse acceleration signal with the weighting factor; and

an arrangement for the additive superimposing of the weighted estimation signal with the first signal.

12. The device according to claim 11, characterized in that the device further comprises a low-pass filter for low-pass filtering of the first signal.

13. The device according to claim 11, characterized in that the device comprises a high-pass filter for high-pass filtering of the second signal.

14. The device according to claim 11, characterized in that the device comprises a transverse acceleration sensor to provide the first signal.

15. The device according to claim 11, characterized in that the device comprises a steering angle sensor to provide the second signal.

16. The device according to claim 11, characterized in that the device comprises a speed sensor to provide the third signal.