Alarm: Electric speeding can be "forced deceleration"

"If we put on the electric vehicle speeding alarm device we designed, once the electric vehicle is approaching the maximum speed limit, it will make a voice alarm, and if it exceeds the maximum speed limit, it will reduce the current supply through the computer chip and force a deceleration." 2nd Hubei Province The College of Physics Experiment Innovation Design Competition ended at Jianghan University. The above devices designed by four university students of Wuhan Engineering University attracted many people to watch.

According to reports, four students from the School of Posts and Telecommunications and Information Engineering of Wuhan Engineering University work in cooperation and division, and after several experiments, the sensors, SCM, display, buzzer, voice chip and other parts are assembled into a “electric vehicle speeding alarm”.

The device can set the maximum driving speed, and once it reaches the maximum speed limit of 25 km/h, an alarm sounds. If the driver has not slowed down, he will send a voice reminder: "You have exceeded the maximum speed limit, please decelerate the road." Many reminders are invalid. The computer chip will control the current output and force the electric vehicle to slow down.

Jiang Liang, one of the designers and professional of measurement and control, said that the cost of this device is not high, and it has little effect on the production cost of electric vehicles.