For the convenience of drivers during the winter, exothermic
pad is attached to the steering wheel surface to generate heat when it
is gripped.
1. |
Heated control unit |
2. |
Heated pad |
The push-return switch transmits signals to the steering
wheel heating module. Whenever pressing the switch on, the ON and OFF
modes are performed alternately.
The switch input state is checked by using the element
memorizing the switch input state; if the power is cut off during
operation, the ON switch is memorized; and if the power supply is
resumed, the heater is normally operated and the timer begins again from
the start.