Why does an electric car suddenly stop while driving?
3 Answers
Electric car suddenly stops while driving for the following reasons: 1. Damage to the Hall sensor inside the accelerator. The Hall sensor inside the electric vehicle accelerator (throttle) is damaged, and it is recommended to replace it promptly. 2. The brake power-off system is stuck and not reset. After stepping on the brake, the brake power-off system is stuck and not reset in time. It can continue to drive normally after timely reset. 3. Short circuit in the control circuit or controller failure. A short circuit occurs in the controller circuit of the electric vehicle, or the electric vehicle controller fails, causing the vehicle to stop. It is recommended to check and repair it in time. 4. Motor failure. The carbon brush of the electric vehicle motor does not make proper contact, causing the vehicle to stop. It is recommended to go to a repair shop for maintenance and replacement.
I've also experienced situations where the electric vehicle suddenly stopped while driving, possibly due to a dead battery. Even though the display showed around 10% battery left, the actual voltage might have been insufficient, causing an immediate power cut. Another possibility is poor contact at the charging port, where bumps could disconnect it, leading to a protective shutdown of the vehicle. Motor controller failure is also a common cause—if it overheats or gets short-circuited by water, it can stop working. Additionally, check the auxiliary 12V battery; if it's dead, the entire vehicle's electrical system can fail. Software glitches are another issue—once, my car's system froze and the screen went black, but a restart fixed it. If you encounter such a situation, first pull over and try restarting. If that doesn’t work, you’ll need to call for roadside assistance or a tow truck.
That time when the electric car suddenly lost power on the highway, it scared me so much I broke out in a cold sweat. I immediately turned on the hazard lights and moved to the emergency lane. Attempting to restart by shifting gears again didn't work, and the dashboard displayed an insulation fault warning. Later, the repair technician said it might have been due to aging battery pack sealing strips allowing water ingress, triggering high-voltage circuit leakage protection. Upon inspecting the chassis wiring harness, they found rodent damage to the wires. It's recommended to immediately check dashboard warning lights after parking, try turning off the vehicle's power completely and waiting five minutes before restarting. If you smell burning, evacuate passengers immediately - high-voltage system fires spread extremely fast. Remember, never attempt to push an electric vehicle when it breaks down; calling the manufacturer's roadside assistance is the safest approach.
