Automatic procedure for locating actuator addresses on a bus system

• US 6,915,171 B2
• Filed: 04/26/2001
• Issued: 07/05/2005
• Est. Priority Date: 04/26/2001
• Status: Expired due to Fees

• Current Assignee: Visteon Global Technologies Incorporated (Visteon Corporation)
• Original Assignee: Visteon Global Technologies Incorporated (Visteon Corporation)
• Inventors: Mayer, Walter
• Primary Examiner(s): Knight, Anthony
• Assistant Examiner(s): Hartman, Jr., Ronald D
• Application Number:
  US09/842,467
• Publication Number:
  US 20020161456A1
• Time in Patent Office: 1,531 Days
• Field of Search: 700/19, 700 23- 24, 700/54, 700 56- 58, 700/64, 700/13, 340/648, 340/653, 340657-659, 318565-567, 236/75, 236/49.3, 710/306
• US Class Current: 700/13
• CPC Class Codes: B60H 1/00964 Control systems or circuits characterised by including features for automatic and non-automatic control, e.g. for changing from automatic to manual control
• CPC Class Codes: F16K 37/0083 by measuring valve parameters
• CPC Class Codes: G05B 19/042 using digital processors G05B19/05 takes precedence
• CPC Class Codes: G05B 2219/21031 Address of module determined by signature : type, value of measured, controlled data of module
• CPC Class Codes: G05B 2219/25018 Only actuator bus, network
• CPC Class Codes: G05B 2219/25092 Customized control features, configuration
• CPC Class Codes: G05B 2219/25096 Detect addresses of connected I-O, modules
• CPC Class Codes: G05B 2219/25102 Detect connected actuator, by code, select compensation non linearity

Abstract

An automatic procedure for locating actuator addresses on a bus system is revealed. The actuators may be identical except for their physical position, and thus their function and address on a bus system that controls and powers the actuators. Because their functions are different, the control system can determine which actuator is in which location, and thus locate the address for each actuator on the bus. Each actuator may then receive and act upon commands from the control system appropriate to its location and function. As a result, a manufacturer or dealer can stock a single actuator, rather than many actuators. Several such actuators would otherwise have to be manufactured and stocked separately, even though the only difference between them might be an installed software or firmware program to identify and control each actuator. Additionally, fewer wires may be required in harnesses to control the actuators.

Claims

1. A method for determining an address of an actuator on a system bus, comprising:

identifying at least one end-stop for an actuator in a system having at least one actuator; and

determining an address for the actuator based on the positioning of at least one end-stop of the actuator.

2. The method of claim 1, further comprising recording the address and downloading a control program for the actuator.

3. The method of claim 1, wherein an actuator is identified using a single end-stop.

4. The method of claim 1, wherein an actuator is identified using a position of a first end-stop relative to a second end-stop.

5. The method of claim 1, wherein an actuator is identified using a position of an end stop and a reference.

6. The method of claim 1, wherein a configuration of the at least one end stop is selected from the group consisting of linear and rotary.

7. The method of claim 1, wherein at least one end-stop for the actuators is identified using an encoder.

8. The method of claim 1, wherein at least one end-stop for the actuator is identified using time.

9. The method of claim 1, wherein at least one end-stop for the actuator is identified using an electronic integration function.

10. The method of claim 1, wherein at least one end-stop for the actuator is identified using the step count of a stepper motor.

11. The method of claim 1, wherein at least one end-stop for the actuator is identified using angular information.

12. The method of claim 1, wherein the actuators are identical except for their end stops.

13. A positioning apparatus, comprising:

at least one actuator;

a control bus, operably connected to the at least one actuator; and

a controller, operably connected to the control bus, wherein each actuator has at least one unique end-stop, and the address of each actuator is determined by identifying said end-stop.

14. The apparatus of claim 13, wherein the actuators are identical except for their respective end-stops.

15. The apparatus of claim 13, wherein the control bus is connected to the actuators through a harness.

16. The apparatus of claim 15, wherein the harness has a number of wires selected from the group consisting of zero, one, two and three.

17. The apparatus of claim 13, further comprising a motor vehicle, in which the apparatus is installed and in which the actuator acts to control a heating or cooling system of the motor vehicle.