Electronic horn having simulated start and end sounds

• US 20080180230A1
• Filed: 01/31/2007
• Published: 07/31/2008
• Est. Priority Date: 01/31/2007
• Status: Abandoned Application

• Current Assignee: Caterpillar Incorporated
• Original Assignee: Caterpillar Incorporated
• Inventors: Zimmermann, Daniel Eugene
• Application Number:
  US11/700,177
• Publication Number:
  US 20080180230A1
• Time in Patent Office: Days
• US Class Current: 340/384.3
• CPC Class Codes: B06B 1/0284 with consecutive, i.e. sequential generation, e.g. with frequency sweep
• CPC Class Codes: G08B 3/10 using electric transmission; using electromagnetic transmission
• CPC Class Codes: G10K 9/12 electrically operated

Abstract

An electronic horn for a vehicle is disclosed. The electronic horn may have a speaker, a primary power source, and a secondary power source. The primary power source may be configured to power the speaker during normal operation of the horn. The secondary power source may be configured to power the speaker during another horn operation.

Claims

1. An electronic horn, comprising:

a speaker;

a primary power source configured to power the speaker during normal operation of the horn; and

a secondary power source configured to power the speaker during another horn operation.

2. The electronic horn of claim 1, further including a controller in communication with the speaker to broadcast a startup sound, a mid-portion sound, and a shutoff sound in response to operator input.

3. The electronic horn of claim 2, wherein the controller is configured to initiate the startup sound when the operator indicates a desired start of horn sounding.

4. The electronic horn of claim 3, wherein the mid-portion sound is broadcast after completion of the startup sound.

5. The electronic horn of claim 4, wherein the mid-portion sound continues until the operator indicates a desired end of horn sounding.

6. The electronic horn of claim 5, wherein the shutoff sound is broadcast after completion of the mid-portion sound.

7. The electronic horn of claim 6, wherein the another horn operation includes broadcasting of the shutoff sound.

8. The electronic horn of claim 1, wherein the primary power source is a vehicle battery.

9. The electronic horn of claim 8, wherein the secondary power source is an auxiliary power storage device.

10. The electronic horn of claim 9, wherein the auxiliary power storage device is a capacitor.

11. The electronic horn of claim 9, wherein the auxiliary power storage device is a battery.

12. The electronic horn of claim 1, further including:

a memory having stored therein the startup sound, mid-portion sound, and shutoff sound; and

an amplifier associated with the speaker and configured to amplify signals from the controller.

13. The electronic horn of claim 12, further including a decoder communicatively coupled between the controller and the amplifier.

14. An electronic horn, comprising:

a speaker;

a main power source configured to power the speaker during normal operation of the horn; and

a controller in communication with the speaker to broadcast a startup sound, a mid-portion sound, and a shutoff sound in response to operator input, wherein

the controller is configured to initiate the startup sound when the operator indicates a desired start of horn sounding;

the mid-portion sound is broadcast after completion of the startup sound and continues until the operator indicates a desired end of horn sounding; and

the shutoff sound is broadcast after completion of the mid-portion sound.

15. The electronic horn of claim 14, further including:

a memory having stored therein the startup sound, mid-portion sound, and shutoff sound; and

an amplifier associated with the speaker and configured to amplify signals from the controller.

16. The electronic horn of claim 15, further including a decoder communicatively coupled between the controller and the amplifier.

17. A method of electronically simulating the sound of an air horn, comprising:

receiving a first operator input indicative of a desired start of horn sounding;

broadcasting a startup sound in response to the first operator input;

broadcasting a mid-portion sound following completion of the startup sound;

receiving a second operator input indicative of a desired end of horn sounding; and

ceasing to broadcast any horn sounds in response to the second operator input.

18. The method of claim 17, further including broadcasting a shutoff sound following completion of the mid-portion sound.

19. The method of claim 18, wherein:

the startup and mid-portion sounds are powered by a primary power source; and

the shutoff sound is powered by secondary power source.

20. The method of claim 19, wherein power supply from the primary power source is discontinued in response to the second operator input.