Patents Assigned to Saab Automobile Aktiegbolag
  • Patent number: 5214919
    Abstract: In order to be able to modify in a simple manner the response of a supercharged internal combustion engine as a function of the engine load, an arrangement is proposed in which the driver may regulate the charge air pressure build-up by means of a manual setting control. The manual setting control is connected to an electronic control unit which, as a function of detected engine parameters, controls the supercharging pressure with respect to desired values stored in the control unit. As a function of the adjusted position of the setting control, a reduction of the charge air pressure which is dependent on the engine load is effected. In this way, the driver can choose which response the engine will have for partial load ranges, where it is possible either to have full charge air pressure at all throttle positions or a gradual increase of the charge air pressure on increasing throttle opening.
    Type: Grant
    Filed: May 26, 1992
    Date of Patent: June 1, 1993
    Assignee: Saab Automobile Aktiegbolag
    Inventors: Sten Jiewertz, Mats Eriksson