[Auto Voltage Regulator] What is the role of a car voltage regulator?Is a car voltage regulator useful
The role of automotive voltage regulators?
Automotive power regulators, also known as electronic rectifiers, electronic voltage regulators. Most of the products are described as being able to stabilize the voltage of the car’s 12V main power supply circuit, improve the car’s power performance, save fuel, and even some products are directly named as electronic fuel savers.
The power source for the car is a battery and a generator. Before the car starts, it is powered by the battery, and the voltage is between 12.0~12.6V; after the car starts, the engine drives the generator to supply power, and the power supply voltage is between 13.3~14.8V. The voltage varies according to the model and the working state of the vehicle.
The battery power supply mainly ensures the basic circuit power supply functions when the car is not started, such as: ECU and instrument panel power supply, lighting, etc., and also provides protection for starting the engine.
After the engine is started, the generator is put into operation, because its output voltage is higher than the maximum voltage of the battery, so the battery that was originally in the power supply state is turned into a charged state, and the power supply circuit of the car is guaranteed to be powered by the generator. The working states of the engine include: idling, shifting, accelerating, decelerating and cruising, as well as the short-term load of the car air conditioner from time to time, which will affect the engine and cause the speed to change, and the corresponding generator speed will also fluctuate.
Unlike the battery, the generator has no power reserve, and its power is instantaneously converted by the kinetic energy of the engine; therefore, any load change in the circuit, regardless of the size of the change and the length of time, must be generated by the generator. Respond and take responsibility. The delay in the power supply response of the generator will lead to voltage fluctuations, which will deteriorate the power and handling performance of the vehicle.
Is the car voltage stabilizer useful?
Because there is no power reserve when the generator supplies power, the voltage is always fluctuating, and when the engine is working The larger the variation range, the more severe the voltage fluctuation will be. This will affect the working stability and reliability of the car, and will also reduce the ignition reliability of the engine and the accuracy of the fuel injection quantity, thereby affecting the driving performance and overall performance of the car. Especially some styles with small displacement and large body will be more obvious, usually manifested as slow start, lag in acceleration, and when the accelerator is stepped on, the vehicle speed cannot be increased.
The original automobile factory is provided by a number of supporting factories for component assembly. Therefore, each circuit system, such as: ignition system, ECU system, instrument system, ABS system, etc., is widened and adapted to this system. voltage range, no overall regulation considerations. After the car is powered by the generator, each system only cares that its own system can adapt, regardless of other electronic control systems; therefore, due to the poor stability of the power supply voltage due to the change of the engine speed, it is necessary to equip a voltage stabilizer of the total circuit with a certain power storage capacity In order to ensure the stable power supply of the vehicle and improve the overall stability and reliability of the electronic systems of the vehicle.
