Main motor bottleneck
1. The comprehensive performance of motor power density, efficiency and life needs to be further improved.
2. There is still a gap between product consistency, reliability and automotive industry requirements; many companies produce good samples, but once they enter mass production, they will have different quality and cannot achieve the same performance. Moreover, the products are certified to pass the TS16949 quality system standard that meets the vehicle quality requirements.
3. The problem of excessive cost. This is mainly in addition to requiring companies to improve their technical standards and must also increase their productivity. Only when a certain output is reached can the cost price of the motor be truly reduced.
Moreover, the working conditions of new energy vehicle motors and electronic control systems are relatively complicated: they need to be able to start and stop frequently, accelerate and decelerate, require high torque at low speed/climbing, require low torque at high speed, and have large shift range; hybrid power The car also needs to handle special functions such as motor start, motor power generation, and brake energy feedback.
In addition, the energy consumption of the motor directly determines the cruising range under fixed battery capacity. Therefore, the electric vehicle drive system has special requirements in load requirements, technical performance and working environment: First, the drive motor must have higher energy density, achieve light weight, low cost, adapt to limited interior space, and have Energy feedback capability reduces vehicle energy consumption. Second, the drive motor has both high speed and low speed and high torque to provide high starting speed, gradeability and high speed acceleration. Third, the electronic control system must have high control. Accuracy, high dynamic response rate, and high security and reliability.
As an important part of the new energy automobile industry chain, the motor electronic control system directly affects the performance and cost of the vehicle. At present, the degree of autonomy in the field of electrical machinery and electronic control is still far behind that of batteries. Some electronic components of electronic control, such as IGBT chips, still do not have complete independent production capacity, and complete vehicle enterprises and parts enterprises with complete system intellectual property rights. Still a minority.
If you want to buy a household appliance motor, please pay attention to synchronous motor and oven motor.
