The impact of lithium batteries on the mileage of electric vehicles

1. The effect of brake power cut on the mileage of the continuation line.

The original design of the brake system of the electric vehicle was also originally designed. At the same time as the brake, the electric vehicle controller stopped supplying power to the motor, thus protecting the battery and the motor.

The reason is the same as the above, put on the electric car, the performance is the large current discharge it will affect the total battery life.

The effect of electric vehicle lithium battery on the mileage of electric vehicles

2. The influence of charger on the mileage of the continuation line

The main analysis here is the impact of low charger voltage on the battery. The battery is not full, which will naturally affect the cruising range of the electric vehicle.

3. The impact of electric vehicle battery imbalance on the mileage of the continuation line.

Among the problems caused by the battery's cruising range of electric vehicles, the single battery is the most backward. The backwardness of a single battery will affect the voltage of the entire battery, so even if one of the four batteries fails or falls behind, it will affect the entire battery.

The first case is a good judgment. After the load is applied, the battery of the broken cell has no voltage. In the second case, if only the two internal cells are short-circuited, the voltage detected after the load is applied will generally be above 10V. This seems to be no problem, but in fact, it passes through a professional discharge device. Charging and discharging is very clear, the battery voltage of the single-cell short circuit is higher, but the 5A discharge time generally does not exceed 30 minutes, which means that it has failed.

4. The length of time the motor is used and the influence of the motor type on the mileage.

In the case of an electric vehicle that is often overloaded or speeding, its motor will degauss or age with the increase of the use time, thus affecting the energy conversion rate of the motor. Power consumption increases, but torque and speed decrease. Looking at the motor type is primarily to determine if the motor is a brushed motor. Brushed motors require maintenance after a period of use. If it is not maintained, the carbon brush will wear after a period of use, and the commutator wear or toner accumulation inside the motor will cause a large increase in motor power consumption, which will affect the torque and cruising range of the motor.

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