How to test electric motor motor
The testing of new energy vehicle motors is particularly important. This is directly related to the running state of the car. Only the motor that meets the test of the relevant functional items can perform such a daunting task. Xiaobian will tell you how to test.
1, the test of the motor drive system
The motor drive system is a pure electric vehicle that converts the DC bus voltage output from the battery into AC power and drives the motor with AC power, which is the core part of the electric vehicle.
2, battery charging system test
The battery charging system converts alternating current in a charging device such as an external charging post or a charging station into direct current, charges a battery in a pure electric vehicle, and stores the electric energy in the battery. The main function of the DC load power supply system is to convert the stable high-voltage power of the DC bus output from the battery in the electric vehicle into a low-voltage output to supply the low-voltage DC load in the vehicle.
3, DC voltage regulator system test
Because the voltage of the battery is often charged and discharged, the voltage across it is a voltage that floats within a certain range. It is necessary to stabilize the voltage in this range to a stable DC bus voltage for direct application or other voltage conversion.
Electric car use precautions
Although electric cars are not as imaginative as they are supposed to be, careful maintenance can make you feel better about the pleasure of green travel.
1, to avoid large current discharge
When the electric car starts, carries people, and goes uphill, try to avoid slamming and accelerating, forming an instantaneous large current discharge. High current discharges tend to cause the formation of lead sulfate crystals, which impair the physical properties of the battery plates.
2, avoid plugging when charging
The 220-volt power plug or the charger output plug is loose, the contact surface is oxidized, etc., which will cause the plug to heat up. If the heating time is too long, the plug will be short-circuited or contact poorly, which will damage the charger and the battery, causing unnecessary loss to you. . Therefore, when the above situation is found, the oxide should be removed or the connector replaced.
3, regular inspection
In the course of use, if the mileage of the electric vehicle suddenly drops by a dozen kilometers in a short time, it is very likely that there is at least one battery in the battery pack. At this time, you should go to the sales center or the agent maintenance department for inspection, repair or matching.
This will extend the life of the battery pack and save you money.
4. It is strictly forbidden to lose electricity when storing
The battery must not be in a deficient state when it is stored. The deficient state means that the battery is not charged in time after use.
When the battery is stored in a depleted state, sulfation is likely to occur, and the lead sulfate crystals adhere to the electrode plate, which may block the ion channel, resulting in insufficient charging and a decrease in battery capacity. The longer the idle state is idle, the more severe the battery is damaged. Therefore, when the battery is not in use, it should be replenished once a month, which can better maintain the health of the battery.
