Battery voltage

The battery is an indispensable part of the car,Under normal circumstances, the battery voltage is 12V.

The role of car battery

1. When starting the engine, provide a strong starting current for the starter

2. When the generator is overloaded, it cooperates with the generator to supply power to the electrical equipment.

3. When the engine is at idle speed, supply power to the electrical equipment.

4. The car battery also acts as a capacitor to protect the electrical equipment of the vehicle.

However, with the continuous increase of electrical equipment in the car and the emergence of light mixing, the voltage of 12V is no longer sufficient for use, resulting in the continuous increase of the voltage.The current mainstream light mixing voltage is 48V.

48V light mixing

48V light hybrid is also called weak hybrid because its motor does not directly drive the vehicle.So someone asked, how can it be called a hybrid without driving a vehicle? Isn't this a lie? Don't worry, everyone, listen to me carefully.

The working logic of 48V hybrid is as follows:

1. The components originally driven by the engine (for example: air conditioner compressor, water pump, booster pump, etc.) are all driven by 48V voltage, which can reduce the burden when the engine is running.

(A motor is added between the 48V light hybrid engine and the transmission, which is mainly responsible for the kinetic energy recovery function and the function of assisting the starting of the vehicle)

2. When the vehicle has just started, it can be realized directly by the motor without starting the engine.

3. When the vehicle needs to decelerate, the motor can work in the reverse direction, acting as a generator, providing braking resistance for the vehicle, and storing electrical energy in the car battery in the reverse direction.

Although the 48V light-hybrid system has limited fuel-saving effects, it is an important transition for the car to electrify.