A Er low this electric car pane promotes the blame contact that electric reference exhibited to use electromagnetism sensor fall (PowerWindowSwitch) . The switch that uses at present is contact, raised wear and dependability this to be not contact through changing.

Consult the bottom of exhibiting switch deployed permanent magnet this. Of magnet below match stock to detect the MR of magnetic field direction (magnetoresistive) sensor. Rising fall when glazing, go up through pressing those who use switch or come down to change the way of magnetic field, detect thereby the operation that gives switch.

(Editor: Net of Chinese report motor-car)