JP2003170714A - Air pressure information display device of tire for vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide users with specific air pressure information while suppressing increase in vehicle cost. <P>SOLUTION: A display device comprises a determining means 10c for determining an abnormal state of the tire air pressure based on an excess or deficiency amount from a suitable air pressure of the tire, an announcing control means 10d for announcing the abnormal state of the tire air pressure in a predetermined form when the determining means 10c determines the abnormal state of the tire air pressure, and a transmitting means 10e for transmitting the excess or deficiency amount from the suitable air pressure of the tire to a portable means portable by a vehicle occupant by radio. Only the abnormal state of the tire air pressure is announced to an announcing means 11 of the vehicle, so that the announcement can be performed by inexpensive warning to suppress increase in the vehicle cost. The excess or deficiency amount from the suitable air pressure is transmitted by radio to the portable means 100 such as an air pump, so that the specific information can be recognized based on the portable means. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle tire air pressure information display device, and more particularly to a vehicle tire air pressure information display device that suppresses an increase in vehicle cost due to the addition of an expensive display unit for displaying a specific value of tire air pressure. The present invention relates to a vehicle tire air pressure information display device capable of providing various air pressure information to a user.

[0002]

2. Description of the Related Art Conventionally, the air pressure of a vehicle tire is detected,
It is known to notify the user of the detected actual air pressure as the tire air pressure state. For example, special table 1
Japanese Unexamined Patent Publication No. 0-508264 discloses that the tire air pressure detected by a pressure sensor is correlated with a standard temperature (20 ° C.) to be corrected, and the corrected air pressure is displayed on a vehicle display. .

[0003]

However, in the above-mentioned prior art, it is necessary to set an expensive indicator for concretely displaying the tire air pressure for each vehicle type, which causes an increase in vehicle cost. There is.

The present invention has been made in consideration of the above problems, and an object thereof is to make it possible to provide a user with specific air pressure information while suppressing an increase in vehicle cost. is there.

[0005]

In order to achieve the above object, the present invention has the following means for solving the problem. That is, in the first configuration of the present invention, an air pressure detection unit that is mounted on a vehicle tire to detect a tire pressure, a notification unit that is provided in the vehicle and that notifies a state of the tire pressure, and an appropriate air pressure of the vehicle tire. Suitable air pressure storage means for storing, and an excess / deficiency amount calculation for calculating an excess / deficiency amount from the appropriate air pressure based on the relationship between the appropriate air pressure stored in the appropriate air pressure storage means and the tire air pressure detected by the air pressure detection means. Means, determining means for determining an abnormal state of tire pressure based on the excess / deficiency amount calculated by the excess / deficiency amount calculating means, and an abnormality in tire air pressure when the abnormal state of tire air pressure is determined by the determining means. A vehicle occupant can carry the notification control means for informing the notification means in a predetermined form and the excess / deficiency amount calculated by the excess / deficiency amount calculation means. It is configured to have a transmitting means for wireless transmission to Do carrying means. According to the first configuration of the present invention, the state of tire pressure is displayed in a predetermined form on the notification means of the vehicle. That is, the vehicle informing means does not display a specific value of the tire air pressure, but merely informs of an abnormal state of the tire air pressure. Therefore, since the state of tire pressure can be notified by an inexpensive warning lamp, warning buzzer, or the like, an increase in vehicle cost can be suppressed. On the other hand, since the excess or deficiency of the tire pressure is wirelessly transmitted to the carrying means, for example, the air pump or the keyless device which is always provided in the vehicle, the user can determine the excess or deficiency of the tire pressure wirelessly transmitted to the carrying means. Based on this, it is possible to grasp specific information on the tire air pressure. Since the carrying means is a common component that is commonly used regardless of the type of vehicle, it is not necessary to individually set a display unit for displaying a specific numerical value for each vehicle type, and it is possible to suppress an increase in cost.

In a second configuration of the present invention, an air pressure sensor mounted on a vehicle tire for detecting tire air pressure,
An alarm provided to the vehicle to notify the tire pressure state, and a control unit for controlling the alarm state of the alarm, the air pressure sensor or the control unit, the tire detected by the air pressure sensor Pneumatic pressure related information calculation means for calculating information related to tire pressure based on the air pressure, determination means for determining the state of the tire pressure based on the information related to the tire pressure calculated by the pressure related information calculation means, When the determination unit determines an abnormal state of tire air pressure, an informing control unit that informs the informing device of an abnormal state of tire air pressure in a predetermined form, and an air supply that detects an air supply state to the vehicle tire. When the air supply state to the tire is detected by the state detection means and the air supply state detection means, the air pressure sensor detects Information relating to tire pressure which is calculated by the detected tire pressure or the pressure-related-information obtaining means, are configured such that the vehicle occupant and transmitting means for wireless transmission is provided in the portable can carry means. According to the 2nd structure of this invention, the state of tire pressure is alert | reported to the alert device of a vehicle in a predetermined form. That is,
The vehicle alarm does not display a specific value of tire pressure, but merely informs of an abnormal state of tire pressure. Therefore, since the state of tire pressure can be notified by an inexpensive warning lamp, warning buzzer, or the like, an increase in vehicle cost can be suppressed. By the way, when an abnormality in tire pressure is notified to the vehicle alarm as described above, the user receives the notification and tries to supply air to the tire by the air pump. Then, when the air supply state to this tire is detected, the tire air pressure or tire air pressure related information is transmitted to the carrying means, so in the air supply state in which the user wants to confirm specific information of the tire air pressure, the carrying means It is possible to grasp the specific information of the tire pressure based on the tire pressure or the information related to the tire pressure wirelessly transmitted.

In the third structure of the present invention, the air supply state detecting means is in an air supply state to the tire when the change in the tire air pressure detected by the air pressure sensor exceeds a predetermined value. It is configured to detect. When an abnormality in tire pressure is notified to a vehicle alarm, the user receives the notification and supplies air to the tire. Then, the tire air pressure changes by a predetermined value or more along with the air supply operation. According to the third configuration of the present invention, it is possible to detect the air supply state to the tire by detecting the change in the tire air pressure.

In a fourth structure of the present invention, an air pressure sensor mounted on a vehicle tire for detecting tire air pressure,
An alarm provided to the vehicle to notify the tire pressure state, and a control unit for controlling the alarm state of the alarm, the air pressure sensor or the control unit, the tire detected by the air pressure sensor Pneumatic pressure related information calculation means for calculating information related to tire pressure based on the air pressure, determination means for determining the state of the tire pressure based on the information related to the tire pressure calculated by the pressure related information calculation means, When the determination means determines that the tire pressure is abnormal, the notification control means for notifying the notification device of the tire pressure abnormal condition in a predetermined form, and the air pressure detected by the air pressure sensor or the air pressure related information calculation The information related to the tire pressure calculated by the means is specified in a carrying means that can be carried by a vehicle occupant. Transmitting means for wireless transmission in each transmission period, and stop state detecting means for detecting a stop state of the vehicle,
The vehicle stop state is determined by the vehicle stop state detection means,
And when the abnormal state of the tire pressure is determined by the determination means, the vehicle stop state is determined by the vehicle stop state detection means, and the normal state of the tire pressure is determined by the determination means, the above, It is configured to have a transmission cycle correction means for shortening a transmission cycle by the transmission means by a predetermined cycle. According to the fourth configuration of the present invention, the state of tire pressure is notified to the alarm of the vehicle in a predetermined form. That is, the vehicle alarm does not display a specific numerical value of the tire pressure, but merely notifies an abnormal state of the tire pressure. Therefore, since the state of tire pressure can be notified by an inexpensive warning lamp, warning buzzer, or the like, an increase in vehicle cost can be suppressed. By the way, the air pressure sensor includes a battery as a power source for transmitting the tire air pressure detected by the vehicle tire to the control unit or the carrying means of the vehicle by a radio signal. Then, in order to ensure the battery life as long as possible, the tire air pressure transmission cycle is set to be long in a vehicle stop state in which the urgency of the vehicle running state is low. However, even when the vehicle tire is in a stopped state and the tire pressure abnormality has already been detected, it is necessary to provide the user with the latest tire air pressure or information related to the tire air pressure every time the tire air pressure is adjusted. According to the fourth aspect of the present invention, when the stop state of the vehicle is detected and the abnormality of the tire pressure is determined, the transmission cycle of the tire pressure or the information related to the tire pressure is shortened by a predetermined period. When the tire pressure is abnormal, the tire pressure or information related to the tire pressure can be provided to the user in a short cycle.

In a fifth configuration of the present invention, the air pressure related information calculating means is configured to calculate at least one of an excess / deficiency amount and an air pressure change amount from an appropriate air pressure. According to the fifth configuration of the present invention, the excess / deficiency amount or the air pressure change amount from the proper air pressure can be calculated as the information related to the tire air pressure.

In a sixth aspect of the present invention, the transmitting means is provided in the air pressure sensor and is configured to directly transmit the detected tire air pressure to the carrying means. According to the sixth configuration of the present invention, the tire air pressure detected by the air pressure sensor can be directly transmitted from the air pressure sensor to the carrying means.

In a seventh configuration of the present invention, the transmitting means is provided in the control unit, and relates to the tire air pressure detected by the air pressure sensor or the tire air pressure calculated by the air pressure related information calculating means. The information is configured to be transmitted to the carrying means.
According to the seventh configuration of the present invention, the air pressure or information related to the air pressure can be transmitted to the carrying means via the control unit.

In the eighth structure of the present invention, the transmission cycle correction means starts from the time when the vehicle stop state detection means detects the vehicle stop state and the determination means determines an abnormal tire pressure state. The transmission cycle of the transmission means is shortened by a predetermined period only for a predetermined time. While adjusting the tire air pressure after determining the tire air pressure abnormality, there is a demand to check the latest tire air pressure or information related to the tire air pressure moment by moment. According to the eighth configuration of the present invention, the information relating to the air pressure or the tire air pressure is maintained for a predetermined time period from the time when the vehicle is stopped and the abnormal state of the tire air pressure is determined, that is, while the tire air pressure is being adjusted. Since the transmission cycle for transmitting to the carrying means is shortened by a predetermined cycle, the latest tire air pressure or information relating to the tire air pressure can be provided to the user in a short cycle.

In a ninth configuration of the present invention, at least the air pressure related information calculating means, the determining means, the transmitting means, the vehicle stop state detecting means and the transmission cycle correcting means are provided in the air pressure sensor, and the transmission cycle is provided. The correction means determines the stop state of the vehicle in the air pressure sensor,
Moreover, when it is determined that the tire air pressure is abnormal, the transmission cycle of the tire air pressure from the air pressure sensor to the carrying means is shortened. According to the ninth configuration of the present invention, since each unit for correcting the transmission cycle is provided in the air pressure sensor, the receiving unit for receiving the transmission cycle correction signal from the control unit in the air pressure sensor. Is unnecessary and the consumption of dark current can be suppressed, so that the battery life of the air pressure sensor can be extended as long as possible.

In a tenth structure of the present invention, at least the judging means and the vehicle stop state detecting means are provided in the control unit, while the transmitting means and the transmission cycle correcting means are provided in the air pressure sensor, and Each of the air pressure sensor and the control unit is provided with a reception unit and a transmission unit for transmitting and receiving a signal between the air pressure sensor and the control unit, and the control unit determines whether the vehicle is stopped or not in the control unit. When the abnormal state of the tire air pressure is determined, the determination result is transmitted to the air pressure sensor, and when the air pressure sensor receives the determination result from the control unit, the carrying means from the air pressure sensor. It is configured to shorten the transmission cycle of the tire pressure to the tire. According to the tenth configuration of the present invention, when the tire pressure abnormality is determined in the control unit, the control unit can shorten the transmission period of the air pressure from the air pressure sensor to the carrying means.

In the eleventh structure of the present invention, an air pressure detecting means mounted on a vehicle tire for detecting a tire air pressure, an informing means for informing a state of the tire air pressure provided in the vehicle, and the air pressure sensor detect the tire air pressure. An air pressure related information calculating means for calculating information related to the tire air pressure based on the tire air pressure, and a judging means for judging the state of the tire air pressure based on the information related to the tire air pressure calculated by the air pressure related information calculating means. When the determination means determines that the tire pressure is in an abnormal state, the notification means for informing the notification means of the abnormal state of the tire pressure in a predetermined form, and the transmission of air pressure information from the carrying means that can be carried by a vehicle occupant Receiving means for receiving the request, and the air pressure detecting means for receiving the pneumatic pressure information transmission request at the receiving means. Information relating to tire pressure which is calculated by the detected tire pressure or the pressure-related-information obtaining means, are configured to have a transmitting means for wirelessly transmitting to said carrying means. According to the eleventh configuration of the present invention, the notification means of the vehicle notifies the tire pressure state in a predetermined form. That is, the vehicle informing means does not display a specific value of the tire air pressure, but merely informs whether the tire air pressure is proper or abnormal.
Therefore, since the state of tire pressure can be notified by an inexpensive warning lamp, warning buzzer, or the like, an increase in vehicle cost can be suppressed. Also,
Tire pressure or information related to tire pressure is
Since it is wirelessly transmitted to the carrying means only when the request from the carrying means is received, it is not necessary to periodically transmit the tire air pressure or information related to the tire air pressure, and the battery life of the air pressure detecting means is extended as long as possible. can do.

In a twelfth configuration of the present invention, the receiving means is configured to receive a pneumatic pressure information transmission request wirelessly transmitted by operating a manual switch provided in the carrying means. According to the twelfth configuration of the present invention, the tire air pressure or information related to the tire air pressure is wirelessly transmitted to the carrying means only when a transmission request wirelessly transmitted by a manual switch operation provided in the carrying means is received. Therefore, the battery life of the air pressure detecting means can be extended as long as possible.

In a thirteenth configuration of the present invention, the receiving means is configured to receive a pneumatic pressure information transmission request wirelessly transmitted by turning on the power of the carrying means. According to the thirteenth configuration of the present invention, the tire pressure or the information related to the tire pressure is wirelessly transmitted to the carrying means only when the transmission request wirelessly transmitted by turning on the power of the carrying means is received. The battery life of the means can be extended as long as possible.

In a fourteenth structure of the present invention, tire air pressure storage means for storing the tire air pressure detected by the air pressure detection means, and the elapsed time from the time when the tire air pressure is stored in the tire air pressure storage means And a detection request transmitting means for transmitting a tire air pressure detection request to the air pressure detecting means when the elapsed time measured by the measuring means is equal to or longer than a predetermined time, and the transmitting means includes the detection means. The latest tire air pressure detected after receiving the tire air pressure detection request from the request transmission means is wirelessly transmitted to the carrying means. First of the present invention
According to the configuration of 4, when the stored tire pressure is old information, the new tire pressure is forcibly detected,
Since the latest tire pressure is transmitted to the carrying means, the latest tire pressure can be provided to the user.

In a fifteenth configuration of the present invention, the vehicle stop state detecting means for detecting a stop state of the vehicle is provided, and the transmitting means is for a predetermined time after the vehicle stop state is detected by the vehicle stop state detecting means. When a tire pressure detection request is received from the detection request transmitting means until the time elapses, the transmission cycle of the tire air pressure or information related to the tire air pressure is shortened by a predetermined cycle for a predetermined time from the reception time. I am doing it. When the tire pressure detection request is received within a predetermined time after the vehicle is stopped, the user wants to check the latest tire pressure or information related to the tire pressure in order to adjust the tire pressure. Conceivable. According to the fifteenth configuration of the present invention, when the tire air pressure detection request is received within a predetermined time after the vehicle is stopped, the tire air pressure or the transmission cycle of information related to the tire air pressure is shortened. Therefore, the latest tire air pressure or information related to the tire air pressure can be provided to the user when adjusting the tire air pressure.

In a sixteenth structure of the present invention, the transmitting means is configured to transmit to the carrying means provided with a display means for displaying an excess / deficiency amount from an appropriate air pressure. According to the fifteenth configuration of the present invention, since the excess / deficiency amount is displayed on the carrying means, the user can easily grasp the specific excess / deficiency state of the tire pressure.

In a seventeenth configuration of the present invention, the transmitting means is configured to wirelessly transmit an excess or deficiency amount from tire air pressure or proper air pressure to a carrying means composed of an air pump. According to the seventeenth configuration of the present invention,
Since the excess or deficiency of tire air pressure is displayed on the air pump, the tire air pressure can be easily adjusted.

In the eighteenth structure of the present invention, the transmitting means is an air pump for automatically supplying an excess / deficiency amount from an appropriate air pressure to a vehicle tire based on the excess / deficiency amount. It is configured to send. First of the present invention
According to the configuration of 8, the air pump is automatically compensated by the excess or deficiency of the tire air pressure, so that the tire air pressure can be adjusted more easily.

In a nineteenth structure of the present invention, the transmitting means includes display means for displaying the proper air pressure stored in the proper air pressure storage means and the excess / deficiency amount calculated by the excess / deficiency amount calculating means, and the display means. It is configured to send to an air pump provided with a correction means for correcting the appropriate air pressure displayed on the means and correcting the excess / deficiency amount in accordance with the correction of the appropriate air pressure. According to the nineteenth configuration of the present invention, since the proper air pressure and the excess / deficiency amount can be corrected on the air pump, the tire air pressure can be arbitrarily corrected according to the user's request.

[0024]

According to the present invention, it is possible to provide a user with specific tire pressure information while suppressing an increase in vehicle cost.

[0025]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is an overall configuration diagram relating to the first to tenth embodiments, and in FIG.
The tires 2 to 5 are respectively equipped with air pressure sensors 6 to 9. Each air pressure sensor 6-9
Is equipped with antennas 6a to 9a, respectively, and outputs the detected tire air pressure and tire temperature to the control unit 10. In the present embodiment, an example in which an antenna is provided for each of the air pressure sensors 6 to 9 has been shown, but one antenna may be used for transmission to each air pressure sensor.

(Embodiment 1) FIG. 2 is a control block diagram relating to Embodiment 1, showing the relationship with the air pressure sensors 6 to 9, the control unit 10, the notification means 11, and the air pump 100 as a carrying means. . The control unit 10 includes an appropriate air pressure storage unit 10a that stores an appropriate air pressure corresponding to a tire temperature, and a difference between the tire air pressure detected by the air pressure sensors 6 to 9 and the appropriate air pressure stored in the appropriate air pressure storage unit 10a. An excess / deficiency amount calculation means 10b for calculating an excess / deficiency amount, a determination means 10c for determining an abnormal state of tire air pressure based on the excess / deficiency amount calculated by the excess / deficiency amount calculation means 10b, and a determination means 10c for determining the tire pressure When an abnormality is judged, the alarm device 1 including a warning lamp, a warning buzzer, etc. provided on the instrument panel indicates an abnormal state of tire pressure.
Informing control means 10d for informing 1 and the air pressure sensor 6
The transmitting means 10e for wirelessly transmitting the tire air pressure and the tire temperature detected by 9 to 9 and the excess / deficiency amount calculated by the tire air pressure excess / deficiency amount calculating means 10b to the air pump 100 which is always provided in the vehicle 1. There is. The alarm device 11 merely informs that the tire air pressure is abnormal, and does not display the specific tire air pressure or the specific excess or deficiency as numerical values.

As shown in FIG. 3, the air pump 100 is a portable type which is always installed in the vehicle 1 and receives the tire pressure, the tire temperature and the excess / deficiency amount wirelessly transmitted from the control unit 10. Receiver 100a (only FIG. 1 is shown, not shown in FIG. 3), and air pressure sensors 6-9
The air pressure (for example, 245 KPa) detected, the excess / deficiency amount (30 KPa) with respect to the appropriate air pressure (for example, 275 KPa), and the display unit 100b that displays the tire temperature (for example, 42 ° C.), and the air is supplied to the tires 2 to 5. Pressure switch 100c and power switch 100
and d.

Next, the control unit 1 according to the first embodiment
Specific control contents by 0 will be described based on the flowchart of FIG. In step S1 of FIG. 4, the tire air pressure Po detected by the air pressure sensors 6 to 9,
Read various signals such as the tire temperature T. Continued, step S
In 2, the appropriate air pressure Pb for the current tire temperature T is calculated based on the map in which the appropriate air pressure Pb for the tire temperature T is stored in advance. In step S3, the excess / deficiency ΔP is calculated based on the deviation between the actual tire air pressure Po read in step S1 and the appropriate air pressure Pb calculated in step S2. In step S4, step S
It is determined whether or not the excess / deficiency amount ΔP calculated in 3 is greater than or equal to a predetermined value. When YES is determined in step S4, the tire air pressure Po is significantly lower or higher than the proper air pressure Pb, and the tire air pressure is abnormal. Therefore, the alarm device 11 is notified of the abnormal state in step S5. , Continue, in step S6, the actual tire pressure P
o, the excess / deficiency amount ΔP and the tire temperature T are set to the air pump 100.
To wirelessly send to. As described above, according to the first embodiment,
Since the alarm 11 of the vehicle 1 is simply notified of the abnormal state of the tire air pressure, it is possible to inform the user of the state of the tire air pressure by an inexpensive warning lamp or the like, thus suppressing an increase in vehicle cost. it can. Further, when the excess / deficiency ΔP exceeds a predetermined value, the tire air pressure Po detected by the air pressure sensors 6 to 9, the excess / deficiency ΔP with respect to the appropriate air pressure Pb, and the tire temperature T are wirelessly transmitted to the air pump 100. Since it is displayed on the display unit 100b of the pump 100, the user can grasp specific tire pressure information based on this display.

(Second Embodiment) FIG. 5 is a control block diagram according to the second embodiment, which is basically the same as that of the first embodiment (FIG. 2), except that the air pressure sensor 6 is provided in the control unit 10.
9 is different from the first embodiment in that an air pressure change detecting means 10f for detecting a change in the tire air pressure detected in steps 9 to 9 is added.

Next, the control unit 1 according to the second embodiment
Specific control contents by 0 will be described with reference to FIG. In step S10 of FIG. 6, the air pressure sensors 6-
Various signals such as tire air pressure Po and tire temperature T detected by 9 are read. Subsequently, in step S11, the appropriate air pressure Pb for the tire temperature T is based on a map in which the appropriate air pressure Pb for the current tire temperature T is stored.
Calculate b. In step S12, the excess / deficiency Δ is calculated based on the deviation between the actual tire air pressure Po read in step S1 and the appropriate air pressure Pb calculated in step S11.
Calculate P. In step S13, it is determined whether the excess / deficiency amount ΔP calculated in step S12 is greater than or equal to a predetermined value. If YES is determined in step S13, the tire air pressure Po is significantly lower or higher than the proper air pressure Pb, and the tire air pressure is abnormal.
The alarm 11 is notified of the abnormal state in step S14. When the result of the determination in step S13 is NO, the process of step S14 is bypassed and the process proceeds to step S15. In step S15, the change rate P / Δt of the actual tire air pressure Po is calculated, and in the subsequent step S16, the change rate P / Δ of the tire air pressure Po calculated in step S15.
It is determined whether Δt is a predetermined value or more. Y in step S16
When it is determined to be ES, that is, when it is determined that a large tire air change (increase) rate due to the air supply to the tire is generated, it is considered that the user wants to provide the tire pressure information. Next, in step S17, the actual tire air pressure Po, the excess / deficiency ΔP, and the tire temperature T are wirelessly transmitted to the air pump 100. When the result of the determination in step S16 is NO, the process of step S17 is bypassed. As described above, according to the second embodiment, the alarm device 11 of the vehicle 1 merely notifies the user of the abnormal state of the tire pressure, so that the user can be notified of the state of the tire pressure with an inexpensive warning lamp or the like. Since the notification can be made, an increase in vehicle cost can be suppressed.
Further, when the tire air pressure change rate P / Δt becomes equal to or more than a predetermined value and it is determined that the tire is in the air supply state, the tire air pressure Po detected by the air pressure sensors 6 to 9 and the excess / deficiency amount ΔP with respect to the appropriate air pressure Pb. Since the tire temperature T is wirelessly transmitted to the air pump 100 and displayed on the display unit 100b of the air pump 100, the user can grasp specific tire pressure information based on this display.

(Third Embodiment) FIG. 7 is a control block diagram relating to the third embodiment and is different from the first embodiment (FIG. 2) in the following points. -The transmission means 10e in the control unit 10 is abolished, and the tire pressures detected by the air pressure sensors 6-9 are wirelessly transmitted directly from the air pressure sensors 6-9 to the air pump 100. -Various means to be described later are incorporated in the air pressure sensors 6 to 9,
The air pressure sensor 6 detects the tire pressure and the tire temperature detected.
9 to 9 can be directly wirelessly transmitted to the air pump 100, and the wireless transmission cycle can be changed. Specifically, the air pressure sensors 6 to 9 include air pressure change calculating means 6b to 9b for calculating the change rate P / Δt of the detected tire air pressure Po and air pressure change calculating means 6b to 9 respectively.
Change rate P / Δt of tire air pressure Po calculated from b
Second determination means 6c to 9c for determining the tire air pressure state based on the above, and vehicle stop state determination means 6d to 9d for determining the vehicle stop state based on the output of the acceleration sensor incorporated in the air pressure sensor, Transmitting means 6e to 9e for wirelessly transmitting the tire pressure Po thus generated to the control unit 10 or the air pump 100, and transmitting means 6e to 9e.
The transmission cycle for wireless transmission from the
In addition, transmission cycle correction means 6f to 9f are provided for shortening a predetermined time period from the time when the tire pressure abnormal state is determined.

Next, the air pressure sensor 6 according to the third embodiment
Specific control contents by 9 to 9 will be described based on FIG. In step S20 of FIG. 8, the air pressure sensor 6
Various signals such as the tire air pressure Po, the tire temperature T, the acceleration G, etc., which are detected by 9 to 9 are read. Continued, step S
In step 21, it is determined whether or not the acceleration G is less than or equal to a predetermined value and the vehicle is stopped, and if YES is determined in step S21, the rate of change P / Δt in tire pressure is calculated in step S22. In step S23, the tire air pressure change rate P / Δt calculated in step S22.
Is greater than or equal to a predetermined value, and it is determined whether or not the tire pressure is abnormal. That is, when a sudden change (decrease) in tire air pressure that does not normally appear occurs, it is determined that the tire air pressure is abnormal. When NO is determined in the step S23, that is, when the tire air pressure is normal even when the vehicle is stopped, the timer t is set to the initial value t in a step S24, and then the step t25 is performed as shown in FIG. To
The tire air pressure Po and the tire temperature T are wirelessly transmitted in the normal cycle t1. If YES is determined in the step S23, the timer t initialized in the step S24 is decremented in the step S26, and then the timer t becomes 0 in the step S27, and it is determined whether or not a predetermined time has elapsed. If NO is determined in step S27, that is, if the vehicle is in a stopped state and the predetermined time has not elapsed after the tire pressure abnormality is determined, the user requests the latest tire pressure in accordance with the adjustment of the tire pressure. Since it is considered that the tire air pressure Po has been reached, the process proceeds to step S28, and as shown in FIG. 9, the tire air pressure Po is transmitted at a transmission cycle t2 shorter than the transmission cycle t1 of step S25. If NO is determined in step S21, the process returns without performing the subsequent process. As described above, according to the third embodiment, the tire air pressure Po and the tire temperature T can be directly transmitted from the air pressure sensors 6 to 9 to the air pump 100. Further, when the vehicle is stopped and the tire pressure is abnormal, the transmission cycle of the tire pressure Po is shortened by a predetermined cycle. Therefore, when adjusting the tire pressure, the latest tire pressure Po, the tire temperature T
Can be provided to the user. Further, after a predetermined time has elapsed after the vehicle is stopped and the tire pressure abnormal state is determined, the transmission cycle of the tire air pressure Po and the tire temperature T is returned to the normal cycle, so the battery life of the air pressure sensors 6 to 9 is reduced. Can be secured.

(Embodiment 4) FIG. 10 is a control block diagram relating to Embodiment 4, and is different from Embodiment 3 (FIG. 7) in the following points. -For each of the air pressure sensors 6 to 9 and the control unit 10,
Receiving units 6g to 9 for exchanging signals in the meantime
g, 10g, and the point that transmission units 6h to 9h and 10h are provided. In the third embodiment, the air pressure change calculation means 6b to 9b and the second determination means 6c to which the air pressure sensors 6 to 9 are provided.
9c is abolished, and instead, the results of the excess / deficiency amount calculation means 10b and the determination means 10c in the control unit 10 are shared. The vehicle stop state detecting means 6d to 9d provided in the air pressure sensors 6 to 9 are eliminated, and the vehicle stop state detecting means 10f is provided in the control unit 10. The point that the tire air pressure detected by the air pressure sensors 6 to 9 is wirelessly transmitted to the air pump 100 via the control unit 10.

Next, the control unit 1 according to the fourth embodiment
Specific control contents by 0 will be described with reference to FIG. In step S30 of FIG. 11, various signals such as the tire air pressure Po and the tire temperature T detected by the air pressure sensors 6 to 9 are read. Subsequently, in step S31, it is determined whether or not the vehicle is stopped, and when YES is determined in step S31, the excess / deficiency amount ΔP of the tire air pressure is calculated in step S32. The excess / deficiency amount ΔP is calculated based on the deviation between the proper tire air pressure Pb and the detected tire air pressure Po. Step S
In 33, it is determined whether or not the excess / deficiency amount ΔP calculated in step S32 is equal to or larger than a predetermined value and the tire pressure is abnormal. When it is determined as NO in step S33, that is, when the tire pressure is normal even when the vehicle is stopped,
After setting the timer t to the initial value t in step S34,
In step S35, the air pressure sensors 6 to 9 are requested to transmit the tire air pressure Po and the tire temperature T as the normal cycle. When YES is determined in step S33, the timer t initialized in step S34 is set. After decrementing in step S36, it is determined in step S37 whether the timer t has become 0 and a predetermined time has elapsed. When it is determined to be NO in step S37, that is, when the vehicle is stopped and the predetermined time has not elapsed after it is determined that the tire pressure is abnormal, the user requests the latest tire pressure with the adjustment of the tire pressure. Since it is considered that the tire pressure Po and the tire temperature T are transmitted to the air pressure sensors 6 to 9 in a transmission cycle shorter than the normal cycle of step S35. Then, in step S39, the tire air pressure Po and the tire temperature T transmitted from the air pressure sensors 6 to 9 in response to each transmission cycle request are received, and the received tire air pressure Po and tire temperature T are wirelessly transmitted to the air pump 100. To do. If NO is determined in step S31, the process returns without performing the subsequent process.

Next, the air pressure sensor 6 according to the fourth embodiment
Specific control contents of 9 to 9 will be described based on FIG. In step S40 of FIG. 12, the control unit 1
Read the transmission cycle request from 0. Continue to step S41
Then, it is determined whether or not the transmission cycle request is short, and if NO is determined, the process proceeds to step S42, and the tire air pressure Po and the tire temperature T are wirelessly transmitted to the control unit 10 in a normal cycle. If NO is determined, the process proceeds to step S43, and the tire air pressure P is transmitted at a transmission cycle shorter than the normal cycle.
o, the tire temperature T is wirelessly transmitted to the control unit 10.
As described above, according to the fourth embodiment, when the vehicle is stopped and the tire pressure is abnormal, the transmission cycle of the tire air pressure Po and the tire temperature T from the air pressure sensors 6 to 9 to the control unit 10 is shortened by a predetermined cycle. Therefore, when adjusting the tire pressure, the latest tire pressure Po, tire temperature T
Can be provided to the user. Further, after a predetermined time has elapsed after the vehicle is stopped and the tire pressure abnormal state is determined, the transmission cycle of the tire air pressure Po and the tire temperature T is returned to the normal cycle, so the battery life of the air pressure sensors 6 to 9 is reduced. Can be secured.

(Fifth Embodiment) FIG. 13 is a control block diagram relating to the fifth embodiment, and is different from the first embodiment (FIG. 2) in the following points. -For each of the air pressure sensors 6 to 9 and the control unit 10,
Receiving units 6g to 9 for exchanging signals in the meantime
g, 10g, and the transmitters 6h to 9h and the transmitter 10h. The air pump 100 is provided with transmission request means 100e for requesting the control unit 10 to transmit information related to tire pressure, and a manual switch 100f for requesting transmission from the transmission request means 100e. point. Specifically, first, in the air pressure sensors 6 to 9,
The receivers 6g to 9g and the transmitters 6h to 9h are provided. To the control unit 10, a transmission unit 10h that requests the reception units 6g to 9g of the air pressure sensors 6 to 9 to transmit the detected tire air pressure and transmission units 6h to 9h of the air pressure sensors 6 to 9 are transmitted. A receiver 10g for receiving tire pressure and tire temperature is provided. The air pump 100 is provided with a transmission requesting means 100e for requesting the receiver 10g of the control unit 10 to transmit tire air pressure or information related to tire air pressure, and a manual switch 100f. When the user operates the manual switch 100f, the transmission requesting means 100e receives the operation and issues a request for transmitting the tire pressure or information related to the tire pressure to the control unit 1.
00 receiving section 10g. Further, when the receiving unit 10g receives the transmission request for the information related to the tire pressure, the transmitting unit 10e of the control unit 10 transmits the tire pressure or the information related to the tire pressure to the receiving unit 100a of the air pump. . As described above, when the control unit 10 receives a transmission request from the air pump 100, the control unit 10 wirelessly transmits the tire air pressure or information related to the tire air pressure to the air pump 100.

Next, the control unit 1 according to the fifth embodiment
Specific control contents by 0 will be described with reference to FIG. In step S50 of FIG. 14, various signals such as the tire air pressure Po and the tire temperature T detected by the air pressure sensors 6 to 9 are read. Then, in step S51,
The suitable air pressure Pb for the current tire temperature T is calculated based on the map in which the suitable air pressure Pb for the tire temperature T is stored in advance. In step S52, step S3
The actual tire pressure Po read at 0 and step S
The excess / deficiency amount ΔP is calculated based on the deviation from the appropriate air pressure Pb calculated in 51. In step S53, step S
It is determined whether or not the excess / deficiency amount ΔP calculated in 32 is a predetermined value or more. If YES is determined in step S53, the tire air pressure Po is significantly lower or higher than the proper air pressure Pb, and the tire air pressure is abnormal. Therefore, the alarm device 11 is notified of the abnormal state in step S54. . Incidentally, when NO is determined in the step S53, the process of the step S54 is bypassed and the step S5 is executed.
Go to 5. In step S55, it is determined whether or not the transmission request from the air pump 100 is received. Step S5
If YES is determined in step 5, the process proceeds to step S56,
The actual tire pressure Po, the excess / deficiency ΔP, and the tire temperature T are wirelessly transmitted to the air pump 100. Incidentally, when the determination in step S54 is NO, the process of step S56 is bypassed. As described above, according to the fifth embodiment,
When the control unit 10 receives the transmission request from the air pump 100, the control unit 10 wirelessly transmits the information related to the tire pressure to the air pump 100. Therefore, the battery life of the air pressure sensors 6 to 9 can be lengthened.

(Sixth Embodiment) FIG. 15 is a control block diagram according to the sixth embodiment and is different from the fifth embodiment (FIG. 13) in the following points. The control unit 10 has a pneumatic pressure information storage means 1 for storing tire pneumatic pressures detected by the pneumatic pressure sensors 6 to 9.
0i and the elapsed time measuring means 10 for measuring the elapsed time since the tire air pressure was stored in the air information storage means 10i.
j, and a transmission requesting unit 10k that transmits an air pressure detection request to the air pressure sensors 6 to 9 when the elapsed time after the tire air pressure is stored is a predetermined time or more. Hereinafter, specific control contents by the control unit 10 according to the sixth embodiment will be described with reference to FIG. Various signals such as the tire air pressure Po and the tire temperature T detected by the air pressure sensors 6 to 9 are read in step S60 of FIG. Then, in step S61, the appropriate air pressure Pb for the current tire temperature T is calculated based on the map in which the appropriate air pressure Pb for the tire temperature T is stored in advance. In step S62, the excess / deficiency ΔP is calculated based on the deviation between the actual tire air pressure Po read in step S60 and the appropriate air pressure Pb calculated in step S61. In step S63, it is determined whether the excess / deficiency amount ΔP calculated in step S62 is greater than or equal to a predetermined value. When YES is determined in step S63, the tire air pressure Po is significantly lower or higher than the proper air pressure Pb, and the tire air pressure is abnormal. Therefore, the alarm device 11 is notified of the abnormal state in step S64. . When the result of the determination in step S63 is NO, the process of step S64 is bypassed and the process proceeds to step S65. In step S65, it is determined whether the transmission request from the air pump 100 is received. Y in step S65
When it is determined to be ES, the process proceeds to step S66, and it is determined whether or not the elapsed time since the tire air pressure is stored in the air pressure information storage means is a predetermined time or more. Y in step S66
When it is determined to be ES, the process proceeds to step S67 to request the air pressure sensors 6 to 9 to transmit air pressure information, and after receiving the latest tire air pressure in step S68, the tire air pressure is set to the air pump 100 in step S69. To wirelessly send to. When it is determined to be NO in step S66, the elapsed time since the tire air pressure is stored in the air pressure information storage means is short, and the stored tire air pressure is a relatively new value. Therefore, it is currently stored in step S70. The tire pressure being stored is wirelessly transmitted to the air pump 100. As described above, according to the sixth embodiment, when the tire pressure stored in the air pressure information storage means is old, the latest tire pressure can be wirelessly transmitted to the air pump 100 and the user can be provided with the latest tire pressure. You can

(Embodiment 7) FIG. 17 is a control block diagram relating to Embodiment 7, and is different from Embodiment 3 (FIG. 7) in the following points. The air pressure change detecting means 6b-9b and the second judging means 6c-9c built in the air pressure sensors 6-9 are eliminated, and instead, the excess / deficiency amount calculating means 10b and the judging means 10c in the control unit 10 are eliminated. The point that the judgment result of is shared. -Inside the air pressure sensors 6-9, stop time measuring means 6i-9i for measuring the elapsed time of stop of the vehicle are provided.

Next, the control unit 1 according to the seventh embodiment
Specific control contents by 0 will be described with reference to FIG. In step S80 of FIG. 18, various signals such as the detected tire air pressure Po, tire temperature T, and acceleration G are read. In a succeeding step S81, it is determined whether or not the vehicle is in the stopped state, and when the determination is NO, the steps S82, S
At 83, timers t1 and t2 are set to initial values. When NO is determined in the step S81, the process proceeds to a step S84, and it is determined whether or not a predetermined time has elapsed after the vehicle is stopped (timer t1).
Is decremented to 0). Also,
If NO in step S84, step S8
At 5, the timer t1 is decremented. Continued, step S
At 86, it is determined whether or not the transmission request from the air pump 100 is received, and when the determination is YES, step S8.
In step 7, it is determined whether a predetermined time has elapsed from the time when the transmission request was received (whether the timer t2 has been decremented to 0). When NO is determined in step S87, that is, when the pneumatic pressure information transmission request is received within a predetermined time after the vehicle is stopped and within the predetermined time from the reception time, the user adjusts the tire pressure to the latest tire pressure. Since it is considered that the user wants to provide information, step S88
After decrementing the timer t2 with, the tire air pressure Po, the tire temperature T, and the excess / deficiency amount ΔP are calculated in step S89.
As shown in FIG. 19, transmission is performed at a short cycle t. If NO in any of steps S84, S86 and S87, the process proceeds to step S90,
As shown in, the tire air pressure Po, the tire temperature T, and the excess / deficiency ΔP are transmitted in a normal transmission cycle T (transmission cycle longer than the transmission cycle t). As described above, according to the seventh embodiment, when there is a request for transmitting air pressure information immediately after the vehicle is stopped and the user desires to provide the latest tire air pressure with the tire air pressure adjustment, the tire air pressure information transmission cycle is set. Since the tire is shortened, the latest tire pressure can be provided to the user every moment.

(Embodiment 8) FIG. 20 is a block diagram of an air pump 100 according to Embodiment 8, which is basically the same as that of Embodiment 1 (FIG. 3), except that a mode switch 100g is provided. There is a difference. When the mode switch 100g is turned on, an automatic supply mode for automatically supplying an excess or deficiency of tire pressure can be selected. After selecting the automatic supply mode, the pressurization switch 100c is turned on to automatically determine the excess or deficiency. It is configured to be able to supply. As described above, according to the eighth embodiment, it is possible to easily adjust the excess or deficiency of tire air pressure.

(Ninth Embodiment) FIG. 21 is a configuration diagram of an air pump 100 according to the ninth embodiment, which is basically the same as that of the first embodiment (FIG. 3), but an appropriate air pressure can be arbitrarily adjusted. The difference is that a correction switch 100h is provided. By raising or lowering the correction switch 100h, the proper air pressure can be raised or lowered. Further, the display unit 100b displays the appropriate air pressure corrected by the correction switch 100h and the excess / deficiency amount with respect to the corrected appropriate air pressure. As mentioned above,
According to the ninth embodiment, the user can easily adjust the proper air pressure of the tire. For example, when it is desired to raise the proper air pressure of the tire before traveling on the highway, the appropriate air pressure is raised when the correction switch 100h is turned on, and the excess / deficiency amount is also raised accordingly. Then, the user can increase the tire pressure by supplying air to the tire in an amount corresponding to the excess or deficiency while pressing the pressure switch 100c.

(Embodiment 10) FIG. 22 is a diagram showing a keyless device 200 as a carrying means according to the tenth embodiment. The keyless device 200 includes a switch unit 200a for locking and unlocking the vehicle door, and a display unit 200b for displaying tire pressure information.
The display unit 200b is configured to display an excess / deficiency amount and an appropriate air pressure for each tire, for example. As described above, according to the tenth embodiment, since the tire pressure information can be displayed on the keyless device 200, the user can easily grasp the specific information of the tire pressure.

(Embodiment 11) FIG. 23 is a view showing a timepiece 300 as a carrying means according to the embodiment 11. The display unit 300a of the timepiece 300 is configured to display an excess / deficiency amount and an appropriate air pressure for each tire. As described above, according to the eleventh embodiment, since the tire pressure information can be displayed on the timepiece 300, the user can easily grasp the specific information of the tire pressure at hand.

In this embodiment, an example of the air pump 100, the keyless device 200, and the timepiece 300 is shown as the carrying means, but the tire pressure may be transmitted to other forms such as a telephone. .

[Brief description of drawings]

FIG. 1 is an overall configuration diagram according to first to eleventh embodiments.

FIG. 2 is a control block diagram according to the first embodiment.

FIG. 3 is a diagram showing an air pump configuration according to the first embodiment.

FIG. 4 is a flowchart showing the control contents related to the first embodiment.

FIG. 5 is a control block diagram according to the second embodiment.

FIG. 6 is a flowchart showing the control contents related to the second embodiment.

FIG. 7 is a control block diagram according to the third embodiment.

FIG. 8 is a flowchart showing the control content according to the third embodiment.

FIG. 9 is a time chart showing a transmission cycle according to the third embodiment.

FIG. 10 is a control block diagram according to the fourth embodiment.

FIG. 11 is a flowchart showing the control contents related to the fourth embodiment.

FIG. 12 is a flowchart showing the control content according to the fourth embodiment.

FIG. 13 is a control block diagram according to the fifth embodiment.

FIG. 14 is a flowchart showing the control contents according to the fifth embodiment.

FIG. 15 is a control block diagram according to the sixth embodiment.

FIG. 16 is a flowchart showing the control contents related to the sixth embodiment.

FIG. 17 is a control block diagram according to the seventh embodiment.

FIG. 18 is a flowchart showing the control contents related to the seventh embodiment.

FIG. 19 is a time chart showing a transmission cycle according to the seventh embodiment.

FIG. 20 is a diagram showing an air pump configuration according to an eighth embodiment.

FIG. 21 is a diagram showing an air pump configuration according to a ninth embodiment.

FIG. 22 is a view showing a keyless device according to the tenth embodiment.

FIG. 23 is a diagram showing a watch configuration according to an eleventh embodiment.

[Explanation of symbols]

6-9: Air pressure sensor 10a: proper air pressure storage means 10b: Means for calculating excess / deficiency 10c: Display control means 10d: determination means 10d: Notification control means 10e: Transmission means 11: Alarm device (informing means)

Claims (19)

[Claims] 1. A pneumatic pressure detecting means mounted on a vehicle tire for detecting a tire pressure, a notifying means for notifying a state of tire pressure provided in a vehicle, and an appropriate air pressure storing means for storing an appropriate air pressure of the vehicle tire. And an excess / deficiency amount calculation means for calculating an excess / deficiency amount from an appropriate air pressure based on a relationship between the appropriate air pressure stored in the appropriate air pressure storage means and the tire air pressure detected by the air pressure detection means, and the excess / deficiency amount. Determination means for determining an abnormal state of tire air pressure based on the excess / deficiency amount calculated by the amount calculation means, and when the abnormal state of tire air pressure is determined by the determination means, the abnormal state of tire air pressure is sent to the notification means. The notification control means for notifying in a predetermined form and the excess / deficiency amount calculated by the excess / deficiency amount calculation means are wirelessly transmitted to the carrying means that can be carried by a vehicle occupant. Air pressure information display device of the vehicle tire and a transmission unit that. 2. An air pressure sensor mounted on a vehicle tire for detecting a tire air pressure, an informing device for informing a tire air pressure state, and a control unit for controlling the informing state of the informing device. The air pressure sensor or the control unit is provided with an air pressure related information calculation means for calculating information related to the tire air pressure based on the tire air pressure detected by the air pressure sensor, and the air pressure related information calculation means. Judgment means for judging the tire air pressure state based on information related to tire air pressure, and when the judging means judges an abnormal tire pressure state, informs the above-mentioned alarm device of the tire air pressure abnormal state in a predetermined form. Notification control means for controlling the air supply state, air supply state detecting means for detecting the air supply state to the vehicle tire, and the air supply state detecting means. When the state of air supply to the vehicle tire is detected by the state detection means, the vehicle occupant carries information related to the tire air pressure detected by the air pressure sensor or the tire air pressure calculated by the air pressure related information calculation means. A pneumatic information display device for a vehicle tire, which is provided with a transmitting means for wirelessly transmitting to a portable means that can be carried. 3. The air supply state detecting means is configured to detect that the tire is in an air supply state when the change in tire air pressure detected by the air pressure sensor exceeds a predetermined value. The pneumatic pressure information display device for a vehicle tire according to claim 2. 4. An air pressure sensor mounted on a vehicle tire for detecting a tire pressure, an alarm provided to the vehicle for notifying a tire pressure condition, and a control unit for controlling the alarm condition of the alarm. The air pressure sensor or the control unit is provided with an air pressure related information calculation means for calculating information related to the tire air pressure based on the tire air pressure detected by the air pressure sensor, and the air pressure related information calculation means. Judgment means for judging the tire air pressure state based on information related to tire air pressure, and when the judging means judges an abnormal tire pressure state, informs the above-mentioned alarm device of the tire air pressure abnormal state in a predetermined form. Notification control means for controlling the tire pressure detected by the pressure sensor or the pressure related information calculating means. Transmission means for wirelessly transmitting information related to tire pressure calculated by the step to a carrying means that can be carried by a vehicle occupant at a predetermined transmission cycle, a stopped state detection means for detecting a stopped state of the vehicle, and the stopped vehicle. The state detection means determines the stop state of the vehicle,
And when the abnormal state of the tire pressure is determined by the determination means, the vehicle stop state is determined by the vehicle stop state detection means, and the normal state of the tire pressure is determined by the determination means, the above, A tire pressure display device for a vehicle, comprising: a transmission cycle correction means for shortening a transmission cycle by the transmission means by a predetermined cycle. 5. The vehicle tire air pressure information according to claim 2, wherein the air pressure related information calculation means is configured to calculate at least one of an excess / deficiency amount and an air pressure change amount from an appropriate air pressure. Display device. 6. The vehicle according to claim 2, wherein the transmitting means is provided in the air pressure sensor, and the detected tire air pressure is directly wirelessly transmitted from the air pressure sensor to the carrying means. Tire air pressure information display device. 7. The transmitting means is provided in the control unit, and information related to the tire air pressure detected by the air pressure sensor or the tire air pressure calculated by the air pressure related information calculating means is sent from the control unit to the control unit. The vehicle tire air pressure information display device according to claim 2 or 4, which is configured to be transmitted to a carrying means. 8. The transmission cycle correction means is operated by the transmission means only for a predetermined time from the time when the vehicle stop state detection means detects the stopped state of the vehicle and the determination means determines an abnormal tire air pressure state. The pneumatic information display device for a vehicle tire according to claim 4, wherein the transmission cycle is shortened by a predetermined cycle. 9. At least the air pressure related information calculating means,
A determination unit, a transmission unit, a vehicle stop state detection unit, and a transmission cycle correction unit are provided in the air pressure sensor, and the transmission cycle correction unit determines the vehicle stop state in the air pressure sensor and determines the tire pressure. 9. The tire pressure display device for a vehicle tire according to claim 4, wherein when the abnormal state is determined, the transmission cycle of the tire pressure from the air pressure sensor to the carrying means is shortened. 10. At least the judging means and the vehicle stop state detecting means are provided in the control unit, while the transmitting means and the transmission cycle correcting means are provided in the air pressure sensor, and in the air pressure sensor and the control unit. Each of which is provided with a receiver and a transmitter for transmitting and receiving a signal between the air pressure sensor and the control unit, wherein the control unit determines whether the vehicle is stopped in the control unit, and the tire pressure is abnormal. When it is determined, while transmitting the determination result to the air pressure sensor, the air pressure sensor, when receiving the determination result from the control unit, the transmission cycle of the tire air pressure from the air pressure sensor to the carrying means. Air pressure information of the vehicle tire according to any one of claims 4 to 9, which is configured to be shortened. Display devices. 11. An air pressure detecting means mounted on a vehicle tire for detecting a tire air pressure, an informing means for informing a state of tire air pressure provided in a vehicle, and a tire air pressure based on the tire air pressure detected by the air pressure sensor. Pressure related information calculating means for calculating information related to the tire pressure, determining means for determining the state of the tire pressure based on the information related to the tire pressure calculated by the air pressure related information calculating means, and the determining means for determining the tire pressure. When the abnormal state of is determined, the notification control means for informing the above-mentioned informing means of the abnormal state of the tire pressure in a predetermined form, and the receiving means for receiving the air pressure information transmission request from the carrying means that the vehicle occupant can carry. , When the pneumatic pressure information transmission request is received by the receiving means,
A tire pressure information display device for a vehicle, comprising: a transmission unit that wirelessly transmits to the carrying unit information related to the tire pressure detected by the pressure detection unit or the tire pressure calculated by the pressure related information calculation unit. 12. A tire pressure information display for a vehicle tire according to claim 11, wherein said receiving means is configured to receive a pneumatic pressure information transmission request wirelessly transmitted by operating a manual switch provided in said carrying means. apparatus. 13. The vehicle tire pneumatic pressure information display device according to claim 11, wherein said receiving means is configured to receive a pneumatic pressure information transmission request wirelessly transmitted by turning on the power of said carrying means. 14. Tire air pressure storage means for storing the tire air pressure detected by the air pressure detection means, measuring means for measuring the elapsed time from the time when the tire air pressure is stored in the tire air pressure storage means, and the measurement. When the elapsed time measured by the means is a predetermined time or more, a detection request transmission means for transmitting a tire air pressure detection request to the air pressure detection means, the transmission means, the tire air pressure from the detection request transmission means. The vehicle tire air pressure information display device according to claim 11, wherein the latest tire air pressure detected after receiving the detection request is wirelessly transmitted to the carrying means. 15. A vehicle stop state detecting means for detecting a stop state of the vehicle is provided, wherein the transmitting means is provided for a predetermined time after the stop state of the vehicle is detected by the vehicle stop state detecting means. 15. When a tire air pressure detection request is received from the detection request transmission means, the transmission cycle of the tire air pressure or the excess / deficiency amount from the proper air pressure is shortened by a predetermined cycle during a predetermined time from the reception time. The tire pressure display device for a vehicle as described. 16. The transmission means is configured to wirelessly transmit to the carrying means provided with a display means for displaying an excess / deficiency amount from an appropriate air pressure.
A tire pressure display device for a vehicle according to any one of 1. 17. The transmitting means is configured to wirelessly transmit an excess or deficiency amount from a tire air pressure or an appropriate air pressure to a carrying means composed of an air pump. Or a tire pressure display device for a vehicle as described above. 18. The transmitting means is configured to wirelessly transmit an excess / deficiency amount from an appropriate air pressure to an air pump which automatically supplies a shortage of air to a vehicle tire based on the excess / deficiency amount. 18. The vehicle tire pressure display device according to claim 17. 19. The display means for displaying the appropriate air pressure stored in the appropriate air pressure storage means and the excess / deficiency amount calculated by the excess / deficiency amount calculation means, and the appropriate air pressure displayed on the display means. 20. The vehicle tire pressure display device according to claim 18, wherein the tire pressure display device is configured to wirelessly transmit to an air pump including a correction unit that corrects the air pressure and a correction unit that corrects an excess / deficiency amount according to the correction of the appropriate air pressure.