Patents by Inventor Jean-Marie Taupin

Jean-Marie Taupin has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 6192874
    Abstract: The apparatus includes a sensor capable of delivering a voltage representative of the ratio between a reference oxygen pressure and the oxygen pressure in a volume of the sensor and provided with electrodes (12, 14) via which it is possible to pass a pumping current that controls said oxygen pressure in the volume, and monitoring and control means including a digital controller (26) receiving said representative voltage on an input and suitable for delivering the pumping current. The monitoring and control means deliver the pumping current in the form of a current that varies continuously and progressively, without interruptions, governed by the digital controller in such a manner as to servo-control the input voltage to a determined value.
    Type: Grant
    Filed: September 7, 1999
    Date of Patent: February 27, 2001
    Assignee: Sagem SA
    Inventors: Christophe Dekoninck, Louis Delgrange, Luc Herbin, Pierre Neyrat, Frédéric Aimard, Jean-Marie Taupin
  • Patent number: 5771483
    Abstract: This method includes detecting the passage before a sensor of each of the teeth of the inertial flywheel of an engine; measuring the time of passage d.sub.i of each of these teeth; constituting a measurement horizon extending on both sides of the angular range of the explosions; dividing this measurement horizon into eight sets of teeth of equal length of which six are for the angular range of the explosions; measuring the passage times of these eight sets and in assigning them a rank in the measurement horizon du.sub.+1, du.sub.0, . . . , du.sub.5, du.sub.+1 ; calculating the period of the explosions T=du.sub.0 +du.sub.+1 +du.sub.2 +du.sub.3 +du.sub.4 +du.sub.5 ; calculating a term Q.sub.c =2du.sub.0 -du.sub.-1 -du.sub.3 -du.sub.+1 +2du.sub.5 ; calculating a term D.sub.c =p.multidot.Q.sub.c where p=.pi./2.sqroot.3, a constant stored in a memory; and calculating the desired torque using the relation Cg.sub.c =A.multidot.D.sub.c /T.sup.3 +B/T.sup.2 in which A and B are constants stored in a memory.
    Type: Grant
    Filed: May 1, 1997
    Date of Patent: June 23, 1998
    Assignee: Renault
    Inventors: Xavier Moine, Jean-Marie Taupin