Method for monitoring an air pressure in at least one tyre of a motor vehicle
AssigneeVolkswagen Aktiengesellschaft
InventorKlaus-Jürgen Gier
Life of this patent
Estimating the term…
Abstract
A method for monitoring an air pressure in at least one tire of a motor vehicle, wherein at least one air pressure in the tire is detected by at least one measuring electronics unit present in the tire and data is transmitted by the measuring electronics unit to a control unit. Depending on the data, the control unit activates components of the motor vehicle to generate optical and/or acoustic signals. The control unit is switched into an after-running mode for a defined period of time when an ignition of the motor vehicle is shut off, in which mode the control unit can continue to receive data from the measuring electronics unit and may activate components of the motor vehicle to generate optical and/or acoustic signals.
Claims21
A method for monitoring an air pressure in at least one tire of a motor vehicle and alerting a user to the monitored air pressure, the method comprising:
- measuring air pressure in the at least one tire by at least one measuring electronics unit present in the tire;
- transmitting data by the at least one measuring electronics unit to a control unit at a first transmission frequency during a normal operation;
- actuating, by the control unit, components of the motor vehicle as a function of the data to generate and output optical signals and/or acoustic signals indicating the monitored air pressure during the normal operation;
- implementing, by the at least one measuring electronics unit, an operating mode change in response to detection of a limiting value of a pressure change in the tire in a specific time period being reached or exceeded;
- wherein, in response to an ignition of the motor vehicle being shut off, the control unit is switched into a run-on mode only for a specific time period in which the control unit is configured to continue to receive data from the at least one measuring electronics unit and configured to actuate motor vehicle components as a function of the data to generate and output optical signals and/or acoustic signals indicating the monitored air pressure,
- wherein implementing the operating mode change includes transmitting, by the at least one measuring electronics unit, data to the control unit at a second transmission frequency that is higher than the first transmission frequency.
A motor vehicle that monitors an air pressure in at least one tire and alerts a user to the monitored air pressure, the motor vehicle comprising:
- a control unit;
- and
- at least one measuring electronics unit, present in the at least one tire, for (i) measuring air pressure in the at least one tire, (ii) transmitting data of the at least one measuring electronics unit to the control unit at a first transmission frequency during a normal operation, and (iii) implementing an operating mode change in response to detection of a limiting value of a pressure change in the tire in a specific time period being reached or exceeded,
- wherein the control unit controls components of the motor vehicle as a function of the data transmitted from the at least one measuring electronics unit to generate and output optical signals and/or acoustic signals indicating the monitored air pressure during the normal operation,
- wherein, in response to an ignition of the motor vehicle being shut off, the control unit is switched into a run-on mode only for a specific time period in which the control unit is configured to continue to receive data from the measuring electronics unit and actuate components of the motor vehicle as a function of the data to generate and output optical signals and/or acoustic signals indicating the monitored air pressure, and
- wherein, in response to an implementation of the operating mode change, the at least one measuring electronics unit is configured to transmit data to the control unit at a second transmission frequency that is higher than the first transmission frequency.
A control unit in a motor vehicle that controls operations for monitoring an air pressure in at least one tire and alerting a user to the monitored air pressure, wherein the control unit comprises a processor configured to:
- receive data from at least one measuring electronics unit present in the at least one tire for measuring air pressure in the at least one tire at a first transmission frequency during a normal operation,
- control components of the motor vehicle as a function of the data transmitted from the at least one measuring electronics unit to generate and output optical signals and/or acoustic signals indicating the monitored air pressure during the normal operation,
- detect a limiting value of a pressure change in the tire in a specific time period being reached or exceeded to actuate the at least one measuring electronics unit to implement an operating mode change,
- in response to an ignition of the motor vehicle being shut off, switch into a run-on mode only for a specific time period to continue to receive data from the measuring electronics unit and actuate components of the motor vehicle as a function of the data to generate and output optical signals and/or acoustic signals indicating the monitored air pressure, and
- in response to an implementation of the operating mode change, receive data from the at least one measuring electronics unit at a second transmission frequency that is higher than the first transmission frequency.
Dependencies are inferred from the claim text.