Patents Assigned to Regie National des Usines Renault
  • Patent number: 5238076
    Abstract: Electric power steering for parking comprising a dc electric booster motor (1) provided with a clutch, a reduction gear (2), a steering wheel torque sensor (3), a vehicle speed sensor and an electronic circuit for control of the motor, characterized, on the one hand, in that the torque sensor delivers all-or-nothing signals, and, on the other hand, in that the boost ratio is proportional to the time during which the torque signal is present when the vehicle travels below a preset speed limit and is canceled when the vehicle exceeds this speed.
    Type: Grant
    Filed: September 25, 1991
    Date of Patent: August 24, 1993
    Assignee: Regie National Des Usines Renault
    Inventors: Fernando Aznar, Pascal Brousse, Philippe Saint-Martin, Francois Tonnerieux
  • Patent number: 4373149
    Abstract: An electric pulse-controlled unit for a window raiser designed especially for use on an automobile, including a motor to raise and lower the window, a power circuit to activate this motor, a motor control capable of being moved from a cutoff position into first and second active positions in which the motor is activated respectively to raise and lower the window, and a mechanical control switch enabling selection of one of the active positions in order to operate the motor in the desired direction. Between each active position of the mechanical control switch and the power circuit for controlling the motor for raising and lowering the window, there is provided two circuits in parallel, each having a control flip-flop with a respective reset input connected in parallel by means of an OR logic circuit to a set of circuits comprising in particular: a delay circuit, a double control detection circuit, and a voltage loading detection circuit.
    Type: Grant
    Filed: September 9, 1980
    Date of Patent: February 8, 1983
    Assignee: Regie National des Usines Renault
    Inventor: Jean-Claude Coste
  • Patent number: 4289195
    Abstract: A device for the climate control of the passenger compartment of an automobile, including an electric fan group, an air distribution conduit in the passenger compartment which has at its entrance an air mixing shutter for diverting a variable amount of the air flow from the fan to a heating radiator, followed by a distribution shutter which sends air either to a defrosting conduit or to an conduit with outlets at the floor of the passenger compartment, electronic probes for measuring the temperature inside and outside the passenger compartment and which are connected to a microcalculator whose memory contains a formula for the interior temperature ordered as well as a law for determining flow from the fan group, both as a function of the outside temperature, the calculator being programmed for receiving temperature measurement data and processing them so as to give off output signals which depend on the temperature ordered and the measured interior temperature, signals to which respond devices for adjusting t
    Type: Grant
    Filed: September 7, 1979
    Date of Patent: September 15, 1981
    Assignee: Regie National des Usines Renault
    Inventors: Dominique Bellot, Alain Cohenca