Patents by Inventor Håkan Fröjdh

Håkan Fröjdh 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).

  • Crankshaft position sensing in a combustion engine
    Patent number: 6684687
    Abstract: An arrangement for a combustion engine with a control system for determining the engine's crankshaft position and direction, including two independent sensors (S1, S2), each of which cooperates with a group of rotational position markings (r). The two sensors (S1, S2) are crankshaft sensors and they are mutually displaced (a/A) in the rotation direction relative to the midpoints of the respective rotational position markings so that during crankshaft rotation the direction of rotation can be determined by comparison of the sensor signal sequences from the two sensors.
    Type: Grant
    Filed: May 15, 2001
    Date of Patent: February 3, 2004
    Assignee: Scania CV AB (publ)
    Inventor: Håkan Fröjdh