Can New Energy Vehicles Charge Without Turning Off the Engine?
1 Answers
New energy vehicles can charge without turning off the engine. When the battery is low on power, as long as the engine is running, the regulator inside the generator will make the generator produce electricity to charge the battery. Modern cars are basically equipped with a power management system. When the current sensor installed on the battery sends a signal to the control computer indicating insufficient battery power, the system will increase the generator's output voltage, sometimes even up to 15 volts, to meet the battery's charging needs. Generally, it is not a problem to fully charge a phone when the car is turned off. However, as long as the ignition is on, other electrical devices in the car will also be powered, which over time can easily lead to battery drain or even failure to start the engine, and can also cause damage to the battery. Some cars will automatically cut off all power a few minutes after the engine is turned off or the car is locked to protect the battery. For example, the BMW X1 is set up this way. Rather than risking failure to start the engine or damaging the car battery to charge a phone, it is better to prepare a power bank to keep in the car. The battery is just "idle consumption" when the engine is off, which is not worth the loss. The car battery can be charged by the rotation of the engine. Opening the engine hood, you can see several belt-connected parts, one of which is the car's generator. As the engine runs, it drives the generator via the belt, generating electric current. The current flows through the vehicle's voltage regulator transformer, and after being filtered, part of it is used for the vehicle's operation (such as lights, audio, and ignition coils), while the excess is used to charge the onboard battery.
