Patent ID: 7076386

Claim:
A computer card for controlling electro-pneumatic calibrators of a system including a tire pressure sensor, a compressor pressure sensor for sensing the pressure of a system compressor, a temperature sensor, a water inlet control, a vacuum cleaner control, an electric heater control, an alarm, a modem providing input information and output information, solenoid valves for controlling inflation of a tire with air, inflation of a tire with nitrogen, and deflation of a tire, solenoid valves for the system compressor, and a purge valve, said computer card being adapted to be connected to a power source and a relay, and including, in a front part thereof, a liquid crystal display and a data input keyboard for entering data into the computer card, said computer card further comprising a microchip controller for storing system management programs and for receiving input information from said data input keyboard and from said tire pressure sensor, said compressor pressure sensor, said temperature sensor, said modem, and a mechanical enabling key, and for, based on said input information, controlling operation of said solenoid valves for controlling inflation of a tire with air, inflation of a tire with nitrogen, and deflation of a tire, said solenoid valves for the system compressor, said water inlet control, said vacuum cleaner control, said heater control, the output information of said modem, said alarm, and said liquid crystal display.