METHOD FOR PROCESSING A SIGNAL ORIGINATING FROM A POSITION SENSOR OF A MOTOR VEHICLE CONTROL MEMBER

• US 20100185355A1
• Filed: 06/30/2008
• Published: 07/22/2010
• Est. Priority Date: 07/06/2007
• Status: Active Grant

• Current Assignee: Renault Sas (Renault)
• Original Assignee: Renault Sas (Renault)
• Inventors: Desfriches, Christophe, Pothin, Richard, Monti, Alessandro
• Granted Patent: US 8,589,044 B2
• Time in Patent Office: Days
• US Class Current: 701/29
• CPC Class Codes: F16D 2500/3026 Stroke
• CPC Class Codes: F16D 2500/30421 Torque of the output shaft
• CPC Class Codes: F16D 2500/30806 Engaged transmission ratio
• CPC Class Codes: F16D 2500/3124 Driving conditions, e.g. climbing hills, cornering, traffic
• CPC Class Codes: F16D 2500/3127 Road slope
• CPC Class Codes: F16D 2500/31413 Clutch pedal position
• CPC Class Codes: F16D 2500/31473 Parking brake lever
• CPC Class Codes: F16D 2500/70668 Signal filtering
• CPC Class Codes: F16D 48/06 Control by electric or electronic means, e.g. of fluid pressure

Abstract

A method for processing a signal originating from a position sensor of a motor vehicle control member, to produce a processed signal relating to the position of the control member. The method includes: a filtering phase in which the signal originating from the sensor is filtered using a first filter to obtain a first filtered signal, and a substitution phase in which the first filtered signal is supplied as the processed signal, a second signal being added to the first filtered signal if the instantaneous value thereof is greater than the value of a first threshold parameter, and, in the opposite case, the signal originating from the sensor is provided as the processed signal.

Claims

1-13. -13. (canceled)

14. A method for processing a signal originating from a position sensor of a control member of a motor vehicle, to generate a processed signal relating to a position of the control member, the method comprising:

a filtering phase in which the signal originating from the sensor is filtered using a first filter, to obtain a first filtered signal; and

a substitution phase in which the first filtered signal is supplied as the processed signal, a second signal being added thereto if the instantaneous value of the first filtered signal is greater than a value of a first threshold parameter, and in which, in the opposite case, the signal originating from the sensor is supplied as the processed signal.

15. The processing method as claimed in claim 14, wherein the second signal is a function of a third signal obtained by filtering the signal originating from the sensor by a second filter, and then by derivation of the resulting signal with respect to time.

16. The processing method as claimed in claim 15, wherein the second signal is limited by values of a second parameter and of a third parameter.

17. The processing method as claimed in claim 16, wherein the values of the second and third parameters are opposite.

18. The processing method as claimed in claim 15, wherein the second signal is obtained by multiplying the third signal by a value of a fourth parameter.

19. The processing method as claimed in claim 18, wherein the value of the fourth parameter is a predetermined constant.

20. The processing method as claimed in claim 18, wherein the value of the fourth parameter is variable.

21. The processing method as claimed in claim 14, wherein the value of the first parameter is a predetermined constant.

22. The processing method as claimed in claim 14, wherein the value of the first parameter is deduced from a characteristic quantity of the control member.

23. A data medium comprising an algorithm for implementing the processing method as claimed in claim 14.

24. A device for processing a signal originating from a position sensor of a control member of a motor vehicle, to generate a processed signal relating to a position of the control member, comprising:

hardware and software means for implementing the processing method as claimed in claim 14.

25. The processing device as claimed in claim 24, wherein the hardware means comprises a first filter, a second filter, computer means, a memory, and derivation means.

26. A device for assisting maneuvering of a motor vehicle on a slope, comprising a processing device as claimed in claim 24.