Electronic control unit, in particular for a device provided in a motor vehicle
AssigneeSiemens Aktiengesellschaft
InventorMichael Ulm
Life of this patent
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Abstract
A control unit, in particular for a device provided in a motor vehicle, has a computer, a first volatile data memory and a second nonvolatile data memory connected to a temperature sensor. During operation, variable data are transmitted from the first to the second data memory. Information regarding the temperature of the nonvolatile data memory is supplied by the temperature sensor to the computer. Data from the volatile data memory are copied to the nonvolatile data memory only when the temperature that has been signaled falls below a predetermined value. Data are read from the nonvolatile data memory up to an upper temperature limit which lies above the predetermined value.
Claims9
An electronic control unit, comprising:
- a first volatile data memory;
- a second nonvolatile data memory for receiving and storing variable data from said volatile data memory;
- a temperature sensor supplying information signaling a temperature of said nonvolatile data memory;
- and
- a computer receiving the temperature information from said temperature sensor, said computer copying data from said volatile data memory to said nonvolatile data memory only when the temperature signaled by said temperature sensor falls below a predetermined value, and data being read from said nonvolatile data memory up to an upper temperature limit lying above said predetermined value.
A motor vehicle device having an electronic control unit, comprising:
- a volatile data memory;
- a nonvolatile data memory for receiving and storing variable data from said volatile data memory;
- a temperature sensor supplying information signaling a temperature of said nonvolatile data memory;
- and
- a computer receiving the temperature information from said temperature sensor, said computer copying data from said volatile data memory to said nonvolatile data memory only when the temperature signaled by said temperature sensor falls below a predetermined value, and data being read from said nonvolatile data memory up to an upper temperature limit lying above said predetermined value.
Dependencies are inferred from the claim text.