Method and device for locating wheels of a vehicle as well as a tire pressure monitoring system
First Claim
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1. A method for locating wheels of a vehicle and at least one of the wheels has wheel electronics, which comprises the following steps of:
- receiving a signal from the wheel electronics which permits conclusions about a time at which a wheel assumed a first rotary angle position, the signal containing a plurality of packets received with a delay;
generating first rotary angle information based on the signal by determining the time at which the wheel assumed the first rotary angle position based on one of the plurality of packets;
determining second rotary angle positions of the wheels by sensors, the sensors are each assigned to a specific position on the vehicle;
generating second bits of rotary angle information based on the second rotary angle positions;
comparing the first rotary angle information with the second bits of rotary angle information;
determining the wheel assigned to the wheel electronics depending on the comparing step;
determining, from the signal that has been received from the wheel electronics, at least one time interval between the plurality of packets in the signal that has been received from the wheel electronics; and
generating at least one estimated value for the at least one time interval based on the at least one time interval determined from the signal received from the wheel electronics, wherein the at least one estimated value for the at least one time interval is a time period.
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Abstract
A method and a device locate wheels of a vehicle, according to which method at least one wheel has wheel electronics. In accordance with the method, a signal is received on the vehicle side by the wheel electronics, which signal allows conclusions to be drawn about a point in time at which the wheel assumed a first rotation angle position. The signal contains a plurality of packets. At least one time interval between the packets is determined, and at least one estimated value for the at least one time interval is provided on the basis of the at least one determined time interval.
18 Citations
10 Claims
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1. A method for locating wheels of a vehicle and at least one of the wheels has wheel electronics, which comprises the following steps of:
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receiving a signal from the wheel electronics which permits conclusions about a time at which a wheel assumed a first rotary angle position, the signal containing a plurality of packets received with a delay; generating first rotary angle information based on the signal by determining the time at which the wheel assumed the first rotary angle position based on one of the plurality of packets; determining second rotary angle positions of the wheels by sensors, the sensors are each assigned to a specific position on the vehicle; generating second bits of rotary angle information based on the second rotary angle positions; comparing the first rotary angle information with the second bits of rotary angle information; determining the wheel assigned to the wheel electronics depending on the comparing step; determining, from the signal that has been received from the wheel electronics, at least one time interval between the plurality of packets in the signal that has been received from the wheel electronics; and generating at least one estimated value for the at least one time interval based on the at least one time interval determined from the signal received from the wheel electronics, wherein the at least one estimated value for the at least one time interval is a time period. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A device for locating wheels of a vehicle and at least one wheel has wheel electronics, the device comprising:
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a first reception unit for receiving a signal from the wheel electronics which permits conclusions about a time at which the wheel assumed a first rotary angle position; a first processing unit for generating first rotary angle information based on the signal; sensors being each assigned to a specific position on the vehicle; a second reception unit for receiving second rotary angle positions of the wheels measured by said sensors; a second processing unit for providing second bits of rotary angle information based on the second rotary angle positions; a comparison unit for comparing the first rotary angle information with the second bits of rotary angle information; a locating unit for locating the wheel assigned to the wheel electronics depending on a result of said comparison unit; said first reception unit being set up to receive the signal containing a plurality of packets which are received with a delay; said first processing unit being set up to determine the time at which the wheel assumed the first rotary angle position based on one of the plurality of packets; an interval-determining device configured for determining at least one time interval between the plurality of packets from the signal received from the wheel electronics; and an estimating apparatus for generating at least one estimated value for the at least one time interval based on the at least one time interval determined from the signal received from the wheel electronics, wherein the at least one estimated value for the at least one time interval is a time period. - View Dependent Claims (10)
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Specification