18777707. ROAD SURFACE FRICTION ESTIMATION DEVICE (TOYOTA JIDOSHA KABUSHIKI KAISHA)
ROAD SURFACE FRICTION ESTIMATION DEVICE
Organization Name
TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor(s)
MITSUYASU Abe of Nisshin-shi JP
ROAD SURFACE FRICTION ESTIMATION DEVICE
This abstract first appeared for US patent application 18777707 titled 'ROAD SURFACE FRICTION ESTIMATION DEVICE
Original Abstract Submitted
A road surface friction estimation device includes: a first estimation part to calculate a provisional maximum friction value based on a physical quantity in relation to friction between a road surface and a tire; a range determination part to determine a determination range of the provisional maximum friction value based on an average value and a standard deviation of the provisional maximum friction values; and a second estimation part to determine the provisional maximum friction value as an estimated maximum friction value when the provisional maximum friction value is within the determination range. The second estimation part determines a corrected value, which is a value within the determination range, as the estimated maximum friction value when the provisional maximum friction value is out of the determination range.