Patent ID: 8427135

Claim:
A directional speed sensor for a vehicle, comprising: a first Hall-effect module that outputs a first current pulse for a first predetermined period when a tooth of a toothed wheel that rotates with a shaft of the vehicle passes the first Hall-effect module in a first direction of rotation and that outputs the first current pulse for a second predetermined period when the tooth passes the first Hall-effect module in a second direction of rotation; and a second Hall-effect module that is electrically connected in parallel with the first Hall-effect module, that is angularly offset from the first Hall-effect module with respect to a center of the shaft, that outputs a second current pulse for the first predetermined period when the tooth of the toothed wheel passes the second-Hall-effect module in the first direction, and that outputs the second pulse for the second predetermined period when the tooth passes the second Hall-effect module in the second direction, wherein the second predetermined period is one of greater than and less than the first predetermined period, and wherein the second current pulse is generated one of before and after the first current pulse.