Motor vehicle having a control system for controlling tire pressure
First Claim
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1. A motor vehicle having a tire-pressure control system, the motor vehicle comprising:
- a part on the lower side of said vehicle and said part including a surface defined by an electrically insulating material;
a plurality of tires;
a plurality of tire-pressure control devices corresponding to respective ones of said tires for measuring the respective air pressures therein;
a central unit;
each one of said tire-pressure control devices functioning to contactlessly transmit data to said central unit and said data containing at least information as to the air pressure in the tire corresponding to said one of said tire-pressure control devices;
a central antenna for receiving the data transmitted by said tire-pressure control devices;
said central antenna being connected to said central unit and being mounted on said surface; and
, said part being a fuel tank made of said electrically insulating material and said central antenna being mounted on said fuel tank.
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Abstract
The invention relates to a motor vehicle having a tire-pressure control system wherein pressure values in the tires are measured by respective tire-pressure control devices (4a to 4d) and are transmitted from these devices via a central antenna (6) to a central unit (10). The central antenna is mounted beneath the vehicle on an electrically-insulating surface. The antenna is preferably mounted on the surface of a fuel tank made of electrically-insulating material. With an arrangement of the central antenna (6) as described above, excellent reception of the data transmitted by the tire-pressure control devices (4a to 4d) is ensured.
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Citations
26 Claims
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1. A motor vehicle having a tire-pressure control system, the motor vehicle comprising:
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a part on the lower side of said vehicle and said part including a surface defined by an electrically insulating material;
a plurality of tires;
a plurality of tire-pressure control devices corresponding to respective ones of said tires for measuring the respective air pressures therein;
a central unit;
each one of said tire-pressure control devices functioning to contactlessly transmit data to said central unit and said data containing at least information as to the air pressure in the tire corresponding to said one of said tire-pressure control devices;
a central antenna for receiving the data transmitted by said tire-pressure control devices;
said central antenna being connected to said central unit and being mounted on said surface; and
,said part being a fuel tank made of said electrically insulating material and said central antenna being mounted on said fuel tank. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A motor vehicle having a tire-pressure control system, the motor vehicle comprising:
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a part on the lower side of said vehicle and said part including a surface defined by an electrically insulating material;
a plurality of tires;
a plurality of tire-pressure control devices on corresponding ones of said tires for measuring the respective air pressures therein;
a central unit;
each one of said tire-pressure control devices functioning to contactlessly transmit data to said central unit and said data containing at least information as to the air pressure in the tire corresponding to said one of said tire-pressure control devices;
a central antenna for receiving the data transmitted by said tire-pressure control devices;
said central antenna being mounted on said surface;
said surface being disposed at a single location on said vehicle where there is a clear uninterrupted line-of-sight path between said central antenna and each of said plurality of tires so as to permit a direct transmission along said path from each of said tire-pressure control devices to said central antenna at said single location; and
,said central antenna being in spaced relationship to said central unit and being connected to said central unit by an electric cable. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 24)
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25. A motor vehicle having a tire-pressure control system, the motor vehicle comprising:
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a fuel tank on the lower side of said vehicle and said fuel tank including a surface defined by an electrically insulating material;
a plurality of tires;
a plurality of tire-pressure control devices corresponding to respective ones of said tires for measuring the respective air pressures therein;
a central unit;
each one of said tire-pressure control devices functioning to contactlessly transmit data to said central unit and said data containing at least information as to the air pressure in the tire corresponding to said one of said tire-pressure control devices;
a central antenna for receiving the data transmitted by said tire-pressure control devices;
said central antenna being connected to said central unit and being mounted on said surface;
said central antenna being a first central antenna; and
,a second central antenna mounted on said surface next to said first antenna and said second antenna likewise being connected to said central unit. - View Dependent Claims (26)
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Specification