Wheel-state obtaining apparatus, and vehicle-state obtaining apparatus

A wheel-state obtaining apparatus comprising:

• a wheel-side device provided for each of at least one of a plurality of wheels of a vehicle and including (a) a first-wheel-state detecting device operable to detect a first state of the corresponding wheel, and (b) a wheel-side-information transmitting device operable to transmit, in a wireless fashion at a time interval, wheel-side information representative of said first state of said corresponding wheel detected by said first-wheel-state detecting device;
• and
• a body-side device disposed on a body of the vehicle and including (c) a receiving device operable to receive said wheel-side information transmitted from said wheel-side device, (d) a detected-information obtaining device operable to obtain received-information representative of the first state of said corresponding wheel, from said wheel-side information received by said receiving device, (e) a vehicle-state detecting device operable to detect a state of the vehicle, (f) an estimated-information obtaining device operable to estimate said first state of said corresponding wheel, on the basis of at least the state of the vehicle detected by said vehicle-state detecting device, and obtain estimated information representative of the estimated first state, and (g) an obtaining-device selecting portion operable to select one of said estimated-information obtaining device and said detected- information obtaining device,
• and wherein said estimated-information obtaining device is operable to obtain said estimated information, during a period between of a moment of last reception of said wheel-side information by said body-side device, and a moment which is said timer interval after said moment of last reception, said obtaining-device selecting portion being operable to select said estimated- information obtaining device during said period.

A vehicle-state obtaining apparatus comprising:

• a remote detecting device including a first detecting device, and a transmitting device operable to transmit, in a wireless fashion at a time interval, first-detecting-device information including information indicative of an output of said first detecting device;
• and
• an information processing device including (a) a remote-information obtaining device including a receiving device operable to receive said first-detecting-device information transmitted in a wireless fashion from said remote detecting device, said remote-information obtaining device being operable to obtain remote information representative of a state of the vehicle, on the basis of said first-detecting-device information received by said receiving device, (b) a wire-transmission-dependent-information obtaining device including a second detecting device and operable to obtain wire-transmission-dependent information representative of said state of the vehicle, on the basis of second-detecting-device information which has been transmitted from said second detecting device through a signal line and which includes information indicative of an output of said second detecting device, and (c) an information determining device operable to determine one of said wire-transmission-dependent information and said remote information, as vehicle-state information representative of said state of the vehicle,
• and wherein said wire-transmission-dependent-information obtaining device is operable to obtain said wire-transmission-dependent information, during a period between a moment of last reception of said first-detecting-device information by said remote-information receiving device, and a moment which is said time interval after said moment of last reception, said information determining device being operable to determine, as said vehicle-state information, said wire-transmission-dependent information obtained during said period.