Application of energy storage capacitor, super capacitor in vehicle starting
We all know that there are a lot of capacitors on the market, in which the super capacitor can be an integral part of the capacitor ah. In front we also introduce to you about the principle of the super capacitor today on the spot about the role of super capacitor car.
We all understand that the battery is a very important part of the electrical appliances, which can directly affect the performance of the car. And now the car is started without exception, the way to start the motor starting. So in the process of starting is to start at the moment, because the starting motor speed is zero, does not produce EMF, the starting current: I=E/ (RM+RS+RL); wherein: E battery no-load terminal voltage, RM as the starting motor armature resistance, RS, RL as the internal resistance of battery line resistance. As the RM, RB, RL are very low, very large current. For example, with 12 Ah, 45 V battery to start the installation of 1.9 L diesel engine car, the battery voltage at the start of the instant from 12.6 V down to about 3.6 V, the starting process of the battery voltage waveform as shown in figure 1. Start the instantaneous current up to 550 A, about 12C of the battery discharge rate > start process of the battery current waveform as shown in figure 2. The current / voltage conversion ratio of the current sensor is 100 A/V. Although the car battery is to start the special battery, can discharge, but can be seen from figure L, more than 10 times the performance of the battery discharge time becomes poor, and so damage the high rate discharge of battery is very obvious. The electromagnetic interference of violent change of voltage starting process is very strong, can cause electrical power down equipment, electrical equipment in the power to force the generator starts after the end of the process, the computer is very easy in this process. Therefore, from the electromagnetic environment, improve vehicle electrical equipment to improve vehicle starting performance and battery performance or extend the service life of the battery to consider, to improve the performance of automobile power during startup is necessary. One solution to the problem is to increase the capacity of the battery, but the need to increase a lot, and to increase the volume, which is not a good choice. And the connection between the super capacitor and the battery can solve this problem.
Read the contents of the above, I must have been aware of the impact of the super capacitor for the car start. This is a very rare knowledge oh.
