Why does the electric car screen display a motor fault?
3 Answers
It is necessary to check whether the motor has any accidents and whether the motor insulation is normal. Here are the basic principles of pure electric vehicles: 1. Working principle of electric vehicles: battery—current—power regulator—motor—power transmission system—driving the car. 2. Technical principle: Pure electric vehicles use motors instead of fuel engines, which is equivalent to an automatic transmission. Traditional internal combustion engines can limit the speed at which they efficiently generate torque to a narrow range, which is why traditional internal combustion engine vehicles require large and complex transmission mechanisms; during the driving process of pure electric vehicles, there is no need for gear shifting devices, making operation convenient and easy. Compared with hybrid vehicles, pure electric vehicles use a single electric energy source, and the electronic control system greatly reduces the internal mechanical transmission system of the car, also reducing energy loss and noise caused by friction of mechanical components, saving internal space and weight of the car.
When my electric car's display shows a motor failure warning, I've found it's often related to issues with the motor itself. As the core component, prolonged operation or overheating can easily cause damage, such as internal coil short circuits or bearing wear. It could also be a sensor malfunction, which misreads data and sends incorrect signals to the computer, causing false alarms on the screen. I've experienced similar situations while driving where the car started shaking, and upon inspection, found the cooling system wasn't functioning properly, causing the motor temperature to spike and trigger protection mode. In such cases, you should immediately reduce speed, pull over, and contact a repair shop. Ignoring it could lead to a breakdown mid-journey, not only disrupting your trip but also posing dangers. Regular maintenance is crucial—make sure to periodically check the motor's condition and avoid prolonged high-load driving.
Hey, don't panic if your electric car shows a motor fault! Last time I encountered this, it was actually caused by a software glitch. The system occasionally goes haywire and sends false warnings—it doesn't necessarily mean it's broken. It's also common when battery voltage is unstable; low charge can disrupt motor control. First, try restarting the vehicle—if the message disappears, it might just be a bug. If the warning persists, check for loose or corroded wiring—aging connections can cause unstable current and trigger false alarms. Avoid aggressive acceleration while driving to prevent motor damage. Take it to a repair shop to scan the fault codes—usually, replacing a sensor or resetting the program will fix it. Don't ignore it, as small issues can escalate—safety first!
