Rotational speed and direction of rotation sensor as well as rotational speed and rotating direction-sensor system

摘要

Rotational speed and direction of rotation sensor (100) for a vehicle, comprising:a first hall effect-module (104), the a first current pulse (502, 602) for a first predetermined time period when a tooth of a gear (202), which has a shaft (204) of the vehicle rotates, to the first hall effect-module (104) in a first rotational direction and the first current pulse (502, 602) for a second predetermined time period when the tooth at the first hall effect-module (104) in a second direction of rotation and.a second hall effect-module (106) which, together with the first hall effect-module (104), which is electrically connected in parallel with respect to a center point of the shaft (204) to the first hall effect-module (104) is offset by an angle, a second current pulse (504, 604) for the first predetermined time period when the tooth of the gear (202) to the second hall effect-module (106) in the first direction of rotation and the second pulse (504, 604) for the second predetermined time period when the tooth at the second hall effect-module (106) in the second direction of rotation passes,the second predetermined time period either larger or smaller than the first predetermined period of time is,the second current pulse (504, 604), either before or after the first current pulse (502, 602) is generated; andwherein center lines (120, 122) of the first and second hall effect-module (104, 106) being separated by a distance, which is either less than or equal to a length of the tooth is.