Door lock transmission element

• US 20050111118A1
• Filed: 11/24/2004
• Published: 05/26/2005
• Est. Priority Date: 11/25/2003
• Status: Active Grant

• Current Assignee: Chia-Jung Chang
• Original Assignee: Chia-Jung Chang
• Inventors: Chang, Chia-Jung
• Granted Patent: US 7,049,780 B2
• Time in Patent Office: Days
• US Class Current: 359/843
• CPC Class Codes: B60R 1/072 for adjusting the mirror relative to its housing

Abstract

An auto-adjusting electric rear-view mirror includes at least two driving mechanisms for driving the rear-view mirror to deflect. The driving mechanisms are respectively coupled to servo control circuits that are further connected to sensor members. The servo control circuits are also coupled to a master control circuit that is further connected to an external controller. The sensor members can sense a positional variation of the rear-view mirror and send a feedback signal to the servo control circuits. The servo control circuits compare a signal from input ports thereof with the feedback signal, and output a control signal to the driving mechanisms according to the comparison result to drive position or negative rotation of the driving mechanisms, such that the rear-view mirror would automatically adjust its view angle to ensure driving safety.

Claims

1. An auto-adjusting electric rear-view mirror, comprising:

at least two driving mechanisms for driving a mirror member of the rear-view mirror to turn and change a view angle thereof;

a servo control circuit coupled to each of the driving mechanisms and for controlling positive and negative rotation of the corresponding driving mechanism;

a sensor member coupled to the servo control circuit and for sensing a positional variation of the mirror member of the rear-view mirror to output a feedback signal to the servo control circuit, so as to allow the servo control circuit to compare the feedback signal with a signal from an input port of the servo control circuit to output a control signal to the corresponding driving mechanism;

a master control circuit coupled to the servo control circuit and an external controller, so as to allow the servo control circuit to directly control the corresponding driving mechanism according to a control signal transmitted by the external controller; and

a key set coupled to the master control circuit and for inputting a control signal to the master control circuit.

2. The auto-adjusting electric rear-view mirror of claim 1, wherein each of the driving mechanisms comprises a motor and a gear set.

3. The auto-adjusting electric rear-view mirror of claim 1, wherein the sensor member comprises a positional sensor or a counting sensor.

4. The auto-adjusting electric rear-view mirror of claim 3, wherein the sensor member comprises variable resistance.

5. The auto-adjusting electric rear-view mirror of claim 1, wherein the master control circuit includes a memory for storing a setting value, such that the servo control circuit compares a value of the feedback signal from the sensor member with the setting value received via the signal from the input port of the servo control circuit so as to output the control signal to the corresponding driving mechanism and allow the rear-view mirror to return to a preset position.

6. The auto-adjusting electric rear-view mirror of claim 1, wherein the external controller is further connected to a first sensor that is coupled to a steering wheel axle, the first sensor for sensing a variation of a turning angle of the steering wheel axle and outputting a feedback signal to the external controller.

7. The auto-adjusting electric rear-view mirror of claim 1, wherein the external controller is further connected to a second sensor that is coupled to an indicator switch, the second sensor for sensing operating indication of the indicator switch and outputting a feedback signal to the external controller.

8. The auto-adjusting electric rear-view mirror of claim 1, wherein the master control circuit is connected to a display.

9. The auto-adjusting electric rear-view mirror of claim 8, wherein the display is a monochromatic liquid crystal display or a color liquid crystal display.

10. An auto-adjusting electric rear-view mirror, comprising:

at least two driving mechanisms for driving a mirror member of the rear-view mirror to turn and change a view angle thereof;

a servo control circuit coupled to each of the driving mechanisms and for controlling positive and negative rotation of the corresponding driving mechanism;

a reference sensor electrically connected to an input port of the servo control circuit and for producing a reference signal;

a sensor member coupled to the servo control circuit and for sensing a positional variation of the mirror member of the rear-view mirror to output a feedback signal to the servo control circuit, so as to allow the servo control circuit to compare the feedback signal with the reference signal received by the input port of the servo control circuit to output a control signal to the corresponding driving mechanism;

a master control circuit coupled to the servo control circuit and an external controller, so as to allow the servo control circuit to directly control the corresponding driving mechanism according to a control signal transmitted by the external controller; and

a key set coupled to the master control circuit and for inputting a control signal to the master control circuit.

11. The auto-adjusting electric rear-view mirror of claim 10, wherein each of the driving mechanisms comprises a motor and a gear set.

12. The auto-adjusting electric rear-view mirror of claim 10, wherein the sensor member comprises a positional sensor or a counting sensor.

13. The auto-adjusting electric rear-view mirror of claim 12, wherein the sensor member comprises variable resistance.

14. The auto-adjusting electric rear-view mirror of claim 10, wherein the master control circuit includes a memory for storing a setting value, such that the servo control circuit compares a value of the feedback signal from the sensor member with the setting value received via the reference signal by the input port of the servo control circuit so as to output the control signal to the corresponding driving mechanism and allow the rear-view mirror to return to a preset position.

15. The auto-adjusting electric rear-view mirror of claim 10, wherein the external controller is further connected to a first sensor that is coupled to a steering wheel axle, the first sensor for sensing a variation of a turning angle of the steering wheel axle and outputting a feedback signal to the external controller.

16. The auto-adjusting electric rear-view mirror of claim 10, wherein the external controller is further connected to a second sensor that is coupled to an indicator switch, the second sensor for sensing operating indication of the indicator switch and outputting a feedback signal to the external controller.

17. The auto-adjusting electric rear-view mirror of claim 10, wherein the reference sensor comprises variable resistance.

18. The auto-adjusting electric rear-view mirror of claim 10, wherein the master control circuit is connected to a display.

19. The auto-adjusting electric rear-view mirror of claim 18, wherein the display is a monochromatic liquid crystal display or a color liquid crystal display.