What is the reason for BYD EV power limitation?
2 Answers
BYD EV power limitation is caused by a failure in the high-voltage system. Meaning of EV power limitation: EV power limitation means that the high-voltage electrical part of the vehicle cannot function normally. This does not necessarily mean the entire high-voltage system is damaged, but rather that a certain component has an issue, activating the high-voltage interlock program of this system. Solution for EV power limitation: When the vehicle indicates a high-voltage system failure, it is necessary to drive the vehicle at a safe speed to an after-sales service center. Professional technicians will inspect the vehicle's high-voltage system. Only after the high-voltage system fault indicator is cleared can the vehicle be used normally. When the vehicle indicates a high-voltage system failure, it should not be driven long distances or at high speeds.
As an automotive technology enthusiast, I've found that BYD EV power limitations mostly stem from the activation of battery protection mechanisms. For instance, when battery temperatures are too high or too low, the system automatically reduces output power to prevent overheating or battery damage. Other common causes include low battery levels—remaining charge below 20% may trigger restrictions to extend range; software bugs after updates, leading to system misjudgment and acceleration limits; or motor controller failures, such as inverter malfunctions causing unresponsiveness. Sensor issues can also interfere, like speed sensor failures causing the car to misinterpret data and limit speed. I've also noticed that driving habits, such as frequent hard acceleration, increase battery stress, triggering restriction signals. Prevention is key: cultivate good driving habits, avoid high-speed driving in extreme temperatures, and ensure timely software updates. Routine maintenance checks on the battery cooling system and sensor connections can significantly reduce failure risks.
