Patent ID: 9341501
Filing Date: 2016-05-17
CPC Classification: G01D,G01K

Claim Text:
1. A system for driving an analog gauge that displays an indication of a condition of a vehicle, the system comprising: a microcontroller that receives a signal representing a voltage at a sender terminal of the analog gauge and a signal representing the condition of the vehicle; and a current driver circuit in signal communication with the microcontroller; wherein the microcontroller determines a desired resistance based on the condition of the vehicle, and determines a current command signal based on the desired resistance and the voltage at the sender terminal of the analog gauge; wherein the microcontroller sends the current command signal to the current driver circuit to command a flow of current through the current driver circuit; wherein the current driver circuit is coupled to the sender terminal of the analog gauge and has a virtual resistance simulated by the flow of current through the current driver circuit and the voltage at the sender terminal of the analog gauge; and wherein the analog gauge is driven according to the virtual resistance of the current driver circuit so as to display the indication of the condition of the vehicle.