DEVICE AND METHOD FOR MONITORING THE TURN COMMAND TO A STEERED REAR WHEEL

• US 20090326762A1
• Filed: 05/16/2007
• Published: 12/31/2009
• Est. Priority Date: 07/21/2006
• Status: Active Grant

• Current Assignee: Renault Sas (Renault)
• Original Assignee: Renault Sas (Renault)
• Inventors: Garcia Estebanez, Pablo, Guegan, Stephane
• Granted Patent: US 8,165,755 B2
• Time in Patent Office: Days
• US Class Current: 701/42
• CPC Class Codes: B62D 7/159 characterised by computing methods or stabilisation processes or systems, e.g. responding to yaw rate, lateral wind, load, road condition

Abstract

A device and method for monitoring a turn command to a steered rear wheel of a vehicle with at least three steered wheels, in which a steering angle datum value for the steered rear wheel is compared against a template, the comparison being made by a computer that generates the datum value.

Claims

1-10. -10. (canceled)

11. A method for monitoring control of steered rear wheel deflection for a vehicle with at least three steered wheels, comprising:

comparing a steered rear wheel deflection setpoint with a template, the comparing being performed by a computer generating the setpoint, and the template being a function of an angle of deflection of front wheels or of an angle of a steering wheel.

12. The method as claimed in claim 11, in which a static steered rear wheel deflection setpoint is compared with a template.

13. The method as claimed in claim 11, in which the template comprises a lower bound and an upper bound.

14. The method as claimed in claim 13, in which the upper bound has a zero value up to a first threshold, is linearly increasing between the first threshold and a second threshold, and has a constant value beyond the second threshold.

15. The method as claimed in claim 14, in which the first threshold has a zero value.

16. The method as claimed in claim 14, in which the first threshold has a value greater than zero.

17. The method as claimed in claim 13, in which the lower bound has a zero value.

18. The method as claimed in claim 13, in which the lower bound has a zero value up to a third threshold, is linearly increasing between the third threshold and a fourth threshold, and has a constant value beyond the fourth threshold.

19. A system for monitoring control of a steered rear wheel deflection for a vehicle with at least three steered wheels, comprising:

means for comparing a steered rear wheel deflection setpoint with a template, the comparison being performed by a computer generating the setpoint, and the template being a function of an angle of deflection of front wheels or of an angle of a steering wheel.

20. The system as claimed in claim 19, in which the template is stored in a nonvolatile memory.