on the basis of this information provided write a background section of a copmplete sepcification of a patent, the invention relates to a system for detecting undercurrent faults in the heated grip application for a two wheeled vehicle without the need for a current sensor. "Existing hardware is not having provision to sense the current to trigger under current fault.
The Master ECU sends a command to the Slave ECU to initiate heating of the coil. Upon receiving this command, the Slave ECU starts generating a Pulse Width Modulation (PWM) signal to heat the coil and begins reading the temperature sensor. The coil, while heating the element, consumes a significant amount of current. Ideally, there should be a direct provision from the hardware to sense the actual current consumption and provide this information to the microcontroller. Based on this information, the microcontroller can decide whether to set an undercurrent fault or not. However, in the existing hardware setup, there is no provision to sense the current. And adding this current sensing hardware into the existing product, will attract additional costs and complexities in further component arrangements of the product.

The existing solutions may use a current sensor or a shunt resistor to measure the actual current consumption of the coil and compare it with a threshold value. Based on these parameters, the undercurrent detection can be easily done. However, this solution would require additional hardware components, which would increase the cost and complexity of the system. Moreover, the current sensor or the shunt resistor could introduce noise or interference in the PWM signal, affecting the heating performance of the coil."