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1. WO2011004229 - TIRE AIR PRESSURE DETECTING DEVICE, TIRE AIR PRESSURE MONITORING SYSTEM, AND TIRE AIR PRESSURE NOTIFICATION METHOD WITH ADAPTIVE TRANSMISSION FREQUENCY

Publication Number WO/2011/004229
Publication Date 13.01.2011
International Application No. PCT/IB2010/001512
International Filing Date 23.06.2010
Chapter 2 Demand Filed 21.04.2011
IPC
B60C 23/04 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
CVEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
23Devices for measuring, signalling, controlling, or distributing tyre pressure or temperature, specially adapted for mounting on vehicles; Arrangement of tyre inflating devices on vehicles, e.g. of pumps, of tanks; Tyre cooling arrangements
02Signalling devices actuated by tyre pressure
04mounted on the wheel or tyre
CPC
B60C 23/0406
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
CVEHICLE TYRES
23Devices for measuring, signalling, controlling, or distributing tyre pressure or temperature, specially adapted for mounting on vehicles
02Signalling devices actuated by tyre pressure
04mounted on the wheel or tyre
0401characterised by the type of alarm
0406Alarms noticeable from outside the vehicle, e.g. indication in side mirror, front light or audible alarms
B60C 23/0408
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
CVEHICLE TYRES
23Devices for measuring, signalling, controlling, or distributing tyre pressure or temperature, specially adapted for mounting on vehicles
02Signalling devices actuated by tyre pressure
04mounted on the wheel or tyre
0408transmitting the signals by non-mechanical means from the wheel or tyre to a vehicle body mounted receiver
B60C 23/0455
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
CVEHICLE TYRES
23Devices for measuring, signalling, controlling, or distributing tyre pressure or temperature, specially adapted for mounting on vehicles
02Signalling devices actuated by tyre pressure
04mounted on the wheel or tyre
0408transmitting the signals by non-mechanical means from the wheel or tyre to a vehicle body mounted receiver
0422characterised by the type of signal transmission means
0433Radio signals
0447Wheel or tyre mounted circuits
0455Transmission control of wireless signals
B60C 23/0459
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
CVEHICLE TYRES
23Devices for measuring, signalling, controlling, or distributing tyre pressure or temperature, specially adapted for mounting on vehicles
02Signalling devices actuated by tyre pressure
04mounted on the wheel or tyre
0408transmitting the signals by non-mechanical means from the wheel or tyre to a vehicle body mounted receiver
0422characterised by the type of signal transmission means
0433Radio signals
0447Wheel or tyre mounted circuits
0455Transmission control of wireless signals
0459self triggered by motion sensor
B60C 23/0484
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
CVEHICLE TYRES
23Devices for measuring, signalling, controlling, or distributing tyre pressure or temperature, specially adapted for mounting on vehicles
02Signalling devices actuated by tyre pressure
04mounted on the wheel or tyre
0408transmitting the signals by non-mechanical means from the wheel or tyre to a vehicle body mounted receiver
0484Detecting an ongoing tyre inflation
Applicants
  • NISSAN MOTOR CO., LTD. [JP]/[JP] (AllExceptUS)
  • MAEKAWA, Takahiro [JP]/[JP] (UsOnly)
  • HIROHAMA, Tetsuro [JP]/[JP] (UsOnly)
  • SHIMA, Takashi [JP]/[JP] (UsOnly)
Inventors
  • MAEKAWA, Takahiro
  • HIROHAMA, Tetsuro
  • SHIMA, Takashi
Priority Data
2009-16298209.07.2009JP
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) TIRE AIR PRESSURE DETECTING DEVICE, TIRE AIR PRESSURE MONITORING SYSTEM, AND TIRE AIR PRESSURE NOTIFICATION METHOD WITH ADAPTIVE TRANSMISSION FREQUENCY
(FR) DISPOSITIF DE DÉTECTION DE PRESSION DE PNEUMATIQUE, SYSTÈME DE CONTRÔLE DE PRESSION DE PNEUMATIQUE, ET PROCÉDÉ DE NOTIFICATION DE PRESSION DE PNEUMATIQUE PRÉSENTANT UNE FRÉQUENCE DE TRANSMISSION ADAPTATIVE
Abstract
(EN)
A tire air pressure detecting device (2) includes an air pressure detecting unit (10a), a transmitting unit (1Od), a running state detecting unit (10b), an air pressure change rate detecting section (10c) and a frequency adjustment section (10c). The frequency adjustment section (10c) is configured to adjust a transmitting frequency at which the detected value of the tire air pressure detected by the air pressure detecting unit (10a) is externally transmitted by the transmitting unit (1Od) according to the running state detected by the running state detecting unit (10b) and the air pressure change rate detected by the air pressure change rate detecting section (10c). The frequency adjustment section (10c) is further configured to variably set a threshold value for switching the transmitting frequency from low frequency to high frequency according to the running state and the air pressure change rate.
(FR)
Un dispositif de détection de pression de pneumatique (2) comprend une unité de détection de pression (10a), une unité de transmission (10d), une unité de détection d'état de marche (10b), une section de détection de taux de modification de pression (10c) et une section d'ajustement de fréquence (10c). La section d'ajustement de fréquence (10c) est conçue pour ajuster une fréquence de transmission à laquelle la valeur détectée de la pression de pneumatique détectée par l'unité de détection de pression (10a) est transmise de manière externe par l'unité de transmission (10d), en fonction de l'état de marche détecté par l'unité de détection d'état de marche (10b) et du taux de modification de pression détecté par la section de détection de taux de modification de pression (10c). La section d'ajustement de fréquence (10c) est en outre conçue pour déterminer de manière variable une valeur seuil pour la commutation de la fréquence de transmission entre une basse fréquence et une haute fréquence, en fonction de l'état de marche et du taux de modification de pression.
Latest bibliographic data on file with the International Bureau