Wheel speed sensor assembly

Details Wheel speed sensor assembly Wheel speed sensor assembly

2007-05-22

2007-05-22

Aurora, Reena (Department: 2862)

Electricity: measuring and testing

Electrical speed measuring

Including speed-related frequency generator

Reexamination Certificate

active

11350935

ABSTRACT:
A wheel speed sensor assembly includes a rotor formed with first and second protrusions arranged circumferentially on the outer periphery thereof in two separate rows at an equal angular pitch. The first protrusions are angularly displaced from the respective second protrusions by half the angular pitch of the first or second protrusions. The sensor assembly further includes a senor having two magnetoelectric devices each opposing the first protrusions or second protrusions. With this arrangement, the differential waveform produced by the sensor has a flat stepped portion between any adjacent rising and falling portions of the differential waveform. The flat portions make the rising and falling portions steeper and shorter. Thus, when the sensor vibrates in the rotational direction of the rotor, the differential waveform is less likely to overshoot the upper threshold or undershoot the lower threshold, which in turn prevents abnormal block pulses from being produced. The detection accuracy of the sensor thus improves.

REFERENCES:
patent: 5679990 (1997-10-01), Ushiro
patent: 9-329612 (1997-12-01), None

Affiliated with

Also associated with

Rating

Wheel speed sensor assembly does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Wheel speed sensor assembly, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Wheel speed sensor assembly will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3734472