| 摘要 |
PROBLEM TO BE SOLVED: To provide a tire pneumatic pressure monitoring device reliably detecting any failure of a pressure sensor. SOLUTION: If at least one of points map_VW_P (ΔP,ΔVW) on an abnormality determination map to be determined by the differential speedΔVW and the differential pressureΔP between wheels is deviated from a sensor normal area (A or B), it is determined that a pressure sensor is in failure. COPYRIGHT: (C)2009,JPO&INPIT |
