Method, system and control device for controlling a compressed air controlled brake system

• US 8,655,568 B2
• Filed: 05/17/2011
• Issued: 02/18/2014
• Est. Priority Date: 09/17/2010
• Status: Active Grant

• Current Assignee: ZF CV Systems Europe BV
• Original Assignee: Wabco GmbH (Wabco Holdings Incorporated)
• Inventors: Barlsen, Holger, Risse, Rainer, Stender, Axel
• Primary Examiner(s): EL CHANTI, HUSSEIN A
• Application Number:
  US13/821,493
• Publication Number:
  US 20130166158A1
• Time in Patent Office: 1,008 Days
• Field of Search: 701/50, 701/83, 701/78
• US Class Current: 701/78
• CPC Class Codes: B60P 1/283 Elements of tipping devices
• CPC Class Codes: B60T 7/12 for automatic initiation; for initiation not subject to will of driver or passenger limiting speed of vehicles other than rail vehicles B60K31/00

Abstract

For a compressed-air-controlled vehicle brake system having at least one brake, a control process includes using a monitoring sensor to determine whether at least one component of the vehicle is not secured or is not properly positioned, and automatically activating the vehicle brakes in response to a determination that the at least one component is not secured and/or is improperly positioned.

Claims

1. A method for controlling a vehicle brake system, the vehicle brake system comprising at least one brake, the method comprising:

determining whether at least one component of a vehicle is one of insecure and improperly positioned, and automatically activating the at least one brake in response to a determination that the at least one component is one of insecure and improperly positioned, wherein automatically activating the at least one brake comprises (i) during a first time period at a start of automatically activating at least one brake, activating the at least brake in a first manner that warns that the at least one component is one of insecure and improperly positioned, and (ii) after the first time period passes, activating the at least one brake in a second manner that reduces velocity of the vehicle.

2. The method according to claim 1, wherein automatically activating the at least one brake is effected while the vehicle is in a driving state, and wherein activating the at least one brake in the first manner is effected without substantially decelerating the vehicle.

3. The method according to claim 1, wherein activating the at least one brake in the second manner results in a greater deceleration of the vehicle than activating the at least one brake in the first manner.

4. The method according to claim 1, wherein automatically activating the at least one brake is effected only when a velocity of the vehicle is above a first minimum velocity.

5. The method according to claim 4, wherein when the velocity of the vehicle is above the first minimum velocity but less than a second minimum velocity, automatically activating the at least one brake is effected in the first manner, and wherein when the velocity of the vehicle is above the second minimum velocity, automatically activating the at least one brake is effected in the second manner.

6. The method according to claim 5, wherein automatically activating the at least one brake the second manner is effected only when the velocity of the vehicle is less than a third minimum velocity.

7. The method according to claim 6, wherein the third minimum velocity is higher than the second minimum velocity.

8. The method according to claim 1, wherein activating the at least one brake in the first manner comprises activating the at least one brake at an initial brake pressure value, and wherein activating the at least one brake in the second manner comprises activating the at least one brake at a final brake pressure value that is higher than the initial brake pressure value.

9. The method according to claim 1, wherein determining whether the at least one component is one of insecure and improperly positioned is effected using a monitoring sensor.

10. The method according to claim 1, wherein the at least one component comprises a load carrier, and wherein determining whether the at least one component is one of insecure and improperly positioned comprises determining whether the load carrier is locked in position.

11. The method of claim 1, wherein the brake system is a compressed-air-controlled brake system.

12. The method of claim 1, wherein the at least one component comprises at least one of a load, an extendable part of a container chassis, a fuel tank flap, a chassis lifting platform, and a tipper body.

13. The method of claim 1, wherein during the first time period, the automatic activation is effected in a pulsed fashion such that a brake pressure of the at least one brake is modulated between a lower pressure value and an upper pressure value.

16. A control device comprising an electronic control unit configured to effect the method according to claim 1.

17. A control system comprising the control device according to claim 16, and a monitoring sensor configured to monitor the at least one component.

14. A control system, comprising:

a brake control device and a monitoring sensor, the monitoring sensor being configured to monitor at least one component of a vehicle and output a triggering signal when the at least one component is one of insecure and improperly positioned, the control device having an electronic control unit coupled to the monitoring sensor, the electronic control unit being configured to effect automatic activation of the at least one brake when the triggering signal is received from the monitoring sensor, wherein the automatic activation of the at least one brake is effected such that (i) during a first time period at a start of the automatic activation, the at least one brake is activated in a first manner that warns that the at least one component is one of insecure and improperly positioned, and (ii) after the first time period passes, the at least one brake is activated in a second manner that reduces velocity of the vehicle.

15. The control system according to claim 14, wherein the monitoring sensor is a locking sensor configured to monitor a locking position of the at least one component.