Vehicle dynamic control systems with center of gravity compensation based on cargo information

• US 8,694,207 B2
• Filed: 04/12/2011
• Issued: 04/08/2014
• Est. Priority Date: 04/12/2011
• Status: Expired due to Fees

• Current Assignee: Robert Bosch GmbH, Robert Bosch LLC (Robert Bosch GmbH)
• Original Assignee: Robert Bosch GmbH
• Inventors: Stuetzler, Frank-Juergen, Trombley, Jason
• Primary Examiner(s): Black, Thomas
• Assistant Examiner(s): HUYNH, LUAT T
• Application Number:
  US13/084,987
• Publication Number:
  US 20120265401A1
• Time in Patent Office: 1,092 Days
• Field of Search: 701/38, 701/48, 701/36
• US Class Current: 701/38
• CPC Class Codes: B60W 2040/1315 Location of the centre of gravity
• CPC Class Codes: B60W 2520/125 Lateral acceleration
• CPC Class Codes: B60W 2520/14 Yaw
• CPC Class Codes: B60W 2520/28 Wheel speed
• CPC Class Codes: B60W 2540/18 Steering angle
• CPC Class Codes: B60W 2720/14 Yaw
• CPC Class Codes: B60W 30/02 Control of vehicle driving stability
• CPC Class Codes: B60W 40/12 related to parameters of the vehicle itself , e.g. tyre models

Abstract

Methods, systems, and computer-readable medium containing instructions for controlling a vehicle. One system includes a plurality of sensors, an occupant restraint system, and a controller. The plurality of sensors are configured to sense operating parameters of the vehicle, and the occupant restraint system is configured to sense data about cargo located in the vehicle. The controller is configured to obtain the data about the cargo located in the vehicle, determine a control adjustment to account for an impact of the cargo on the vehicle'"'"'s center of gravity based on the data about the cargo, and control the vehicle based on the control adjustment.

Claims

1. A control system for a vehicle, the system comprising:

a plurality of sensors configured to sense operating parameters of the vehicle;

an occupant restraint system configured to sense data about cargo located in the vehicle;

a controller configured to obtain the data about the cargo located in the vehicle and the operating parameters, determine a control adjustment to account for an impact of the cargo on the vehicle'"'"'s center of gravity based on the data about the cargo, and control the vehicle based on the control adjustment and the operating parameters, wherein the control adjustment includes an adjusted center of gravity for the vehicle.

2. The control system of claim 1, wherein the data about the cargo located in the vehicle includes a weight of the cargo.

3. The control system of claim 2, wherein the control adjustment includes an adjustment factor for a characteristic velocity value for the vehicle based on the weight of the cargo.

4. The control system of claim 3, wherein the controller is configured to control the vehicle by determining a corrected characteristic velocity value based on the adjustment factor.

5. The control system of claim 4, wherein the controller is configured to control the vehicle by determining a desired yaw rate for the vehicle based on the corrected characteristic velocity value.

6. The control system of claim 1, wherein the data about the cargo located in the vehicle includes a position of the cargo.

7. The control system of claim 1, wherein the data about the cargo located in the vehicle includes a height of the cargo.

8. The control system of claim 1, wherein the controller is configured to control the vehicle by sending instructions to at least one component included in the vehicle.

9. The control system of claim 1, wherein the plurality of sensors include at least two of a wheel speed sensors, a steering angle sensor, a yaw rate sensors, and a lateral acceleration sensor.

10. Non-transitory computer-readable medium encoded with instructions for controlling a vehicle, the instructions comprising:

obtaining operating parameters of the vehicle sensed by a plurality of sensors;

obtaining data about a weight of cargo located in the vehicle;

determining a control adjustment to account for an impact of the weight of the cargo on the vehicle'"'"'s center of gravity based on the weight of the cargo, wherein the control adjustment includes an adjusted center of gravity for the vehicle; and

controlling the vehicle based on the control adjustment and the operating parameters.

11. A computer-implemented method for controlling a vehicle, the method comprising:

obtaining, at a controller, operating parameters of the vehicle sensed by a plurality of sensors;

obtaining, at the controller, data about cargo located in the vehicle sensed by an occupant restraint system;

determining, at the controller, a control adjustment to account for an impact of the cargo on the vehicle'"'"'s center of gravity based on the data about the cargo, wherein the control adjustment includes an adjusted center of gravity for the vehicle; and

controlling, at the controller, the vehicle based on the control adjustment and the operating parameters.

12. The method of claim 11, wherein obtaining data about the cargo includes obtaining a total weight for the cargo.

13. The method of claim 12, wherein determining a control adjustment includes determining an adjustment factor for a characteristic velocity value for the vehicle based on the total weight of the cargo.

14. The method of claim 13, wherein controlling the vehicle includes determining a corrected characteristic velocity value based on the adjustment factor.