Automotive vehicle seat adjusting system

• US 5,319,248 A
• Filed: 11/22/1991
• Issued: 06/07/1994
• Est. Priority Date: 11/30/1990
• Status: Expired due to Fees

• Current Assignee: Keihin Corporation (Hitachi, Ltd.)
• Original Assignee: OKI Electric Industry Company Limited
• Inventors: Endou, Yoshimi
• Primary Examiner(s): Logan, Sharon D.
• Assistant Examiner(s): Krishnan, Aditya
• Application Number:
  US07/796,468
• Time in Patent Office: 928 Days
• Field of Search: 364/424.05, 307/10.1, 318/280, 318/467, 318/603, 318/466, 318/568.1, 318/488, 318/489
• US Class Current: 307/10.1
• CPC Class Codes: G05B 19/238 the positional error is only used to control speed in steps according to distance left, or to give a stop signal when error reaches zero
• CPC Class Codes: G05B 2219/34065 Fuzzy logic, controller
• CPC Class Codes: G05B 2219/35453 Voice announcement, oral, speech input
• CPC Class Codes: G05B 2219/37169 Derive incremental pulse from motor current deviation
• CPC Class Codes: G05B 2219/37313 Derive speed from position
• CPC Class Codes: G05B 2219/43182 Speed control with feedback and as reference the programmed value
• CPC Class Codes: G05B 2219/45022 Auto seat, dentist chair, roll wheel chair

Abstract

An automotive vehicle seat adjusting system according to this invention is constructed to move a seat by a drive circuit. It is also constructed to allow a driver to change, during movement of the seat, the moving speed of the seat as he likes. In the system of this invention, when a signal indicative of the feeling of the driver to the moving speed of the seat is inputted, fuzzy inference is performed in accordance with a speed decision rule to decide an optimal moving speed. The optimal moving speed is decided by a fuzzy inference processor on the basis of the inputted feeling signal and an actual moving speed. The drive circuit is controlled in accordance with the decision at the fuzzy inference processor, whereby the seat is allowed to move at the optimal moving speed.

Claims

1. An automotive vehicle seat adjusting system comprising:

a drive circuit for moving an automotive vehicle seat;

a detection circuit for detecting a moving speed of the seat;

a feeling signal input means for inputting a signal indicative of the feeling of a driver to the moving speed of the seat;

a rule memory with speed decision rules stored therein;

a fuzzy inference processor for performing fuzzy inference in accordance with one of the rules stored in the rule memory to decide an optimal seat moving speed on the basis of the moving speed detected by the detection circuit and the signal inputted by the feeling signal input means; and

a controller for controlling the drive circuit so that the seat can move at the optimal moving speed decided by the fuzzy inference processor.

2. The system of claim 1, wherein the drive circuit moves the seat by driving a motor provided in a seat drive unit.

3. The system of claim 2, wherein the detection circuit detects drive pulses for the motor and, based on the drive pulses, detects the moving speed of the seat.

4. The system of claim 1, wherein said feeling signal input means comprises a microphone for inputting voice and a voice recognition processor for performing recognition of the voice inputted through the microphone and outputting the same as a voice signal.

5. An automotive vehicle seat adjusting system comprising:

a drive circuit for moving an automotive vehicle seat;

a detection circuit for detecting a position and moving speed of the seat;

a feeling signal input means for inputting a signal indicative of the feeling of a driver to the moving speed of the seat;

a data memory with seat position data stored therein;

a rule memory with speed decision rules stored therein;

a fuzzy inference processor for performing fuzzy inference in accordance with one of the rules stored in the rule memory to decide an optimal seat moving speed on the basis of the moving speed detected by the detection circuit and the signal inputted by the feeling signal input means; and

a controller for writing the position of the seat, which has been detected by the detection circuit, as a position datum in the data memory, for reading a position datum stored in the data memory and then to control the drive circuit to move the seat to the position of the position datum, and also for controlling the drive circuit so that the seat can move at the optimal moving speed decided by the fuzzy inference processor.

6. The system of claim 5, wherein the drive circuit moves the seat by driving a motor provided in a seat drive unit.

7. The system of claim 6, wherein the detection circuit detects drive pulses for the motor and, based on the drive pulses, detects the position and moving speed of the seat.

8. The system of claim 5, wherein said feeling signal input means comprises a microphone for inputting voice and a voice recognition processor for performing recognition of the voice inputted through the microphone and outputting the same as a voice signal.

9. The system of claim 5, further comprising a first input means for instructing storage of a position datum of the seat and a second input means for instructing movement of the seat to the position of the position datum, wherein the controller writes the position datum in the data memory in accordance with an input signal from the first input means, reads the position datum stored in the data memory in accordance with the input signal from the second input means and controls the drive circuit to move the seat to the position.

10. The system of claim 5, further comprising a third input means for instructing movement of the seat, wherein the controller controls the drive circuit to move the seat in accordance with an input signal from said third input means.

11. A vehicle seat adjustment system comprising:

a plurality of manually operable switches by which control signals may be entered by a user;

a drive circuit for moving the vehicle seat;

a controller coupled to said switches and said drive circuit; and

an inference processor coupled to the controller.

12. The system of claim 11 further comprising:

an input circuit for inputting data for use by the inference processor, the data concerning the speed of seat movement desired by the user.

13. The system of claim 12 wherein said input circuit includes a voice receptor and a voice recognition processor coupled thereto.

14. The system of claim 11 further comprising a rule memory coupled to the inference processor.

15. The system of claim 11 further comprising a speed detector for determining the speed of seat movement, coupled to the inference processor.

16. The system of claim 11 wherein said controller includes a microprocessor and the system further comprises a speed detector coupled to the microprocessor for determining the speed of seat movement.

17. The system of claim 16 further comprising:

an input circuit for inputting data for use by the inference processor, the data concerning the speed of seat movement desired by the user, wherein said input circuit includes a voice receptor and a voice recognition processor coupled thereto;

a rule memory coupled to the inference processor; and

a speed detector for determining the speed of seat movement, coupled to the inference processor.