JPS6490860A - Method for detecting defective output from wheel speed sensor - Google Patents
Method for detecting defective output from wheel speed sensorInfo
- Publication number
- JPS6490860A JPS6490860A JP24827187A JP24827187A JPS6490860A JP S6490860 A JPS6490860 A JP S6490860A JP 24827187 A JP24827187 A JP 24827187A JP 24827187 A JP24827187 A JP 24827187A JP S6490860 A JPS6490860 A JP S6490860A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- wheel
- speed
- gate
- wheel speed
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Abstract
PURPOSE:To detect defective output from a wheel speed sensor immediately upon start of vehicle by processing a vehicle speed speed, a signal representing a condition where at least one wheel is not rotating and a wheel speed signal of another wheel on same shaft. CONSTITUTION:FF circuit 10 having a reset terminal R for receiving an output signal from an AND gate 14 which conducts when rotary speed of respective wheels exceeds over 6lkm/h and a set terminal S for receiving an ignition ON signal 12 is provided. Furthermore, an OR gate 30 for receiving signals from AND gates 22a-22d which conduct when the wheel speed is minimum and the rotary speed of one wheel arranged on one axle is lower than a value obtained by multiplying the sum of rotary speeds of respective wheels on another axle by a constant of 0.75 is provided. When signals from FF circuit 10 and the OR gate 30 and a signal 20 indicating that the vehicle speed is higher than 10km/h are provided, a signal indicating that a defective signal is fed from an AND gate 40 to the wheel speed sensor is provided.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP24827187A JPS6490860A (en) | 1987-10-01 | 1987-10-01 | Method for detecting defective output from wheel speed sensor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP24827187A JPS6490860A (en) | 1987-10-01 | 1987-10-01 | Method for detecting defective output from wheel speed sensor |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6490860A true JPS6490860A (en) | 1989-04-07 |
JPH0310541B2 JPH0310541B2 (en) | 1991-02-13 |
Family
ID=17175644
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP24827187A Granted JPS6490860A (en) | 1987-10-01 | 1987-10-01 | Method for detecting defective output from wheel speed sensor |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6490860A (en) |
-
1987
- 1987-10-01 JP JP24827187A patent/JPS6490860A/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPH0310541B2 (en) | 1991-02-13 |
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