Procedure and system for driving a vehicle

• US 4,066,877 A
• Filed: 04/20/1976
• Issued: 01/03/1978
• Est. Priority Date: 04/29/1975
• Status: Expired due to Term

• Current Assignee: Jeumont-Schneider
• Original Assignee: Jeumont-Schneider
• Inventors: Virnot, Alain D., Cynober, Simon A.
• Primary Examiner(s): Dildine, Jr., R. Stephen
• Application Number:
  US05/678,649
• Time in Patent Office: 623 Days
• Field of Search: 180/77 R, 235/150.2, 235/150.24, 340/53-55, 246/167 R, 246/174, 246/182 R, 246/182 B, 246/187 R
• US Class Current: 701/25
• CPC Class Codes: B61L 15/0092 Memory means reproducing during the running of the vehicle or vehicle train, e.g. smart cards
• CPC Class Codes: B61L 15/0094 Recorders on the vehicle
• CPC Class Codes: B61L 25/00 Recording or indicating positions or identities of vehicles or trains or setting of track apparatus
• CPC Class Codes: B61L 25/021 Measuring and recording of train speed
• CPC Class Codes: B61L 27/04 Automatic systems, e.g. controlled by train; Change-over to manual control
• CPC Class Codes: Y02T 10/72 Electric energy management in electromobility

Abstract

Procedure and system for driving a vehicle required to travel repeatedly over the same path, in which procedure at least some elements of the vehicle are operated in accordance with prerecorded information.

According to the invention, the information relates to the operations to be performed on or by such elements in relation to the position of the vehicle on its path; and the elements are operated on the basis of such information in the light of the vehicle'"'"'s instantaneous position with a correction for instantaneous vehicle speed and the response time of the elements.

Claims

1. A driverless method for operating a vehicle along a path comprising the steps of:

a. storing information pertaining to operation of several elements of the vehicle in relation to the vehicle'"'"'s position on the path;

b. sensing data related to the vehicle'"'"'s position along the path,

c. automatically operating one of said elements responsive to the sensed data and to the stored information, and

d. correcting said operating step in accordance with vehicle speed and response time of said elements.

2. The method recited in claim 1 further comprising the step of sensing data pertaining to the vehicle'"'"'s velocity along the path.

3. The method recited in claim 1 further comprising the steps of:

a. computing a leading position of the vehicle, and

b. operating an element of the vehicle responsive to the computed lead position, thereby compensating for the response time of the element.

4. The method recited in claim 3 wherein said computing step comprises calculating the leading position using velocity data and the sensed position data.

5. The method recited in claim 4 wherein said velocity data is obtained by the step of differentiating the sensed position data.

6. The method recited in claim 4 further comprising the step of regulating the operating step of the elements.

7. The method recited in claim 6 wherein said regulating step is responsive to an exponential computation of the velocity data.

8. The method recited in claim 7 wherein said sensing step further comprises the step of sensing data pertaining to the vehicles'"'"'s velocity along the path.

9. The method recited in claim 3 wherein said storing step further includes the step of storing information pertaining to results to be achieved by the operation of the vehicle elements in relation to the vehicle'"'"'s position along the path.

10. The method recited in claim 1 wherein said storing step comprises a recording step.

11. The method recited in claim 10 wherein said recording step occurs during a previous travel along the path.

12. The method recited in claim 10 wherein said recording step occurs in a laboratory.

13. An automated, driverless system for operating elements of a vehicle comprising:

a. position sensing means providing a signal representing the vehicle'"'"'s position along a path;

b. computing means receiving said position signal for calculating an anticipated vehicle position;

c. storage means receiving said anticipated vehicle position from said computing means, said storage means containing information pertaining to actions to be taken by an element related to the anticipated position of a vehicle; and

d. means for regulating such an element responsive to information obtained from said storage means.

14. A driving system as recited in claim 13 further comprising means for providing said computing means with a signal representative of reaction time of an element being regulated.

15. An automated system for operating elements of a vehicle comprising:

a. position sensing means providing a signal representing the vehicle'"'"'s position along a path;

b. computing means for calculating an anticipated vehicle position;

c. storage means receiving said anticipated vehicle position from said computing means, said storage means containing information pertaining to actions to be taken by an element related to the anticipated position of the vehicle;

d. means for providing a signal representative of reaction time of an element being regulated;

e. said computing means receiving said position signal and said reaction time signal; and

f. means for regulating such an element responsive to information obtained from said storage means.

16. A driving system as recited in claim 15 wherein said computing means includes receiving means for receiving velocity data for calculating said anticipated vehicle position.

17. A driving system as recited in claim 16 further comprising velocity sensing means providing velocity data to said computing means.

18. A driving system as recited in claim 16 further comprising differentiating means for differentiating said position signal and for providing velocity data to said computing means.

19. A driving system as recited in claim 16 further comprising velocity sensing means providing velocity data to said computing means.

20. A driving system as recited in claim 19 further comprising second computing means receiving said velocity data from said velocity sensing means and providing a reference signal to said regulating means.

21. A driving system as recited in claim 20 further comprising:

a. summing means interposed between said regulating means and the element regulated thereby, said summing means having two inputs and an output;

b. controlling means for operating the element controlled by said regulator, said controlling means comprising a loop including therein;

comparing means,

second regulating means,

said summing means and

the element regulated thereby;

c. said summing means receiving on its inputs signals generated by said regulating means and by said second regulating means and connected at its output to the element controlled thereby.

22. A driving system as recited in claim 21 further comprising second storing means receiving an input from said velocity sensing means for providing a signal representing values of results of operation of the element being controlled to said comparing means.

23. A driving system as recited in claim 22 further comprising a fixed reference system providing a reference signal to said comparing means.