Vane actuated magnetic drive mode sensor

• US 7,245,122 B2
• Filed: 12/21/2005
• Issued: 07/17/2007
• Est. Priority Date: 12/21/2005
• Status: Expired due to Fees

• Current Assignee: Honeywell International Inc.
• Original Assignee: Honeywell International Inc.
• Inventors: Frazee, Lawrence E., Patin, John S., Eichholz, Kenneth L., Alfors, Eugene D.
• Primary Examiner(s): Aurora; Reena
• Application Number:
  US11/315,924
• Publication Number:
  US 20070139038A1
• Time in Patent Office: 573 Days
• Field of Search: 324/207.2, 324/251, 324/207.24
• US Class Current: 324/207.2
• CPC Class Codes: F16H 59/105 consisting of electrical switches or sensors
• CPC Class Codes: G01D 2205/80 Manufacturing details of magnetic targets for magnetic encoders
• CPC Class Codes: G01D 5/147 influenced by the movement of a third element, the position of Hall device and the source of magnetic field being fixed in respect to each other

Abstract

A vane actuated drive mode sensor is generally composed of two primary components, including a drive mode sensor array and an actuator. The sensor array can be provided as a housing composed of a plurality of Hall Effect (HE) sensors, magnets and the electronics associated with the sensors. The actuator, also referred to as a vane, can be provided as a plate constructed from a magnetic material, such as, for example, ferrous steel, and can be provided with holes punched thereon at different places depending on the requirement of a user. The actuator can be connected to a user'"'"'s driver and can slide on and/or within the housing.

Claims

1. A vane actuated drive mode sensor apparatus, comprising:

a sensor array that includes a housing with at least one magnet to provide a magnetic field and at least one Hall effect sensor for sensing said magnetic field; and

an actuator attachable to an actuator driver, wherein said actuator comprises a ferrous steel actuator having a low grade magnetic material attached to a back of said ferrous steel actuator in order to bias said at least one Hall Effect sensor and provides a magnetic field for actuation of said at least one Hall Effect sensor, such that said sensor array and said housing are arranged with respect to one another to provide a vane actuated drive mode sensor apparatus and wherein said housing comprises a thermoplastic material to house said at least one magnet, said at least one Hall Effect sensor, and associated electronic components.

2. The apparatus of claim 1 wherein said at least one magnet is present on or within said housing to provide said magnetic field required for actuation of said vane actuated drive mode sensor apparatus.

3. The apparatus of claim 1 wherein said housing is configured with grooves for receiving said actuator.

4. The apparatus of claim 1 wherein said actuator slides externally within a fixed linear pattern within said housing.

5. The apparatus of claim 1 wherein said actuator is encoded with a punched pattern of slots.

6. The apparatus of claim 5 wherein said actuator is over-molded to restrict ferrous particles from entering said punched pattern of slots.

7. A vane actuated drive mode sensor apparatus, comprising:

a sensor array that includes a housing for maintaining at least one Hall Effect sensor; and

a ferrous steel actuator having a low grade magnetic material attached to a back of said ferrous steel actuator in order to bias said at least one Hall effect sensor and provide a magnetic field for actuation of said at least one Hall effect sensor, wherein said sensor array and said housing are arranged with respect to one another to provide a vane actuated drive mode sensor apparatus.

8. The apparatus of claim 7 wherein said housing comprises a thermoplastic material for housing a magnet, said at least one Hall Effect sensor, and associated electronic components.

9. The apparatus of claim 7 wherein said housing is configured with grooves for receiving said ferrous steel actuator.

10. The apparatus of claim 7 wherein said ferrous steel actuator slides externally within a fixed linear pattern within said housing.

11. The apparatus of claim 7 wherein said ferrous steel actuator is encoded with a punched pattern of slots.

12. The apparatus of claim 11 wherein said ferrous steel actuator is over-molded to restrict ferrous particles from entering said punched pattern of slots.

13. The apparatus of claim 7 wherein said ferrous steel actuator is provided with an attachment for attaching to an actuator driver.

14. A vane actuated drive mode sensor apparatus, comprising:

a thermoplastic housing configured with a plurality of grooves;

a ferrous steel actuator encoded with a printed pattern of slots, wherein said ferrous steel actuator slides within said plurality of grooves of said thermoplastic housing;

at least one Hall Effect sensor for sensing said magnetic field to detect a position of said ferrous steel actuator; and

at least one magnet provided in order to bias said at least one Hall effect sensor and to provide a magnetic field for actuation of said at least one Hall effect sensor, wherein said thermoplastic housing, said ferrous steel actuator and said at least one Hall effect sensor are arranged with respect to one another to provide a vane actuated drive mode sensor apparatus.

15. The apparatus of claim 14 wherein said at least one magnet is present on or within said thermoplastic housing to provide said magnetic field required for an actuation of said vane actuated drive mode sensor apparatus.

16. The apparatus of claim 14 wherein said ferrous steel actuator slides externally within a fixed linear pattern within said thermoplastic housing.

17. The apparatus of claim 14 wherein said ferrous steel actuator is encoded with a punched pattern of slots.

18. The apparatus of claim 17 wherein said ferrous steel actuator is over-molded to restrict ferrous particles from entering punched pattern of slots.

19. The apparatus of claim 17 wherein said ferrous steel actuator is provided with an attachment for attaching to an actuator driver.

20. The apparatus of claim 19 wherein said plurality grooves receive said ferrous steel actuator.