1. Current status of motor controller market
In 2017, the demand for electric motor controllers in China was around 870,000 sets, and the market scale was around 11.7 billion yuan, up 34.6% and 29% respectively. It is expected that by 2022, under the promotion of new energy vehicles and ordinary hybrid electric vehicles. The market size of electric vehicle motor controllers will climb to 26.7 billion yuan, and passenger car motor controllers will dominate.
Since the second half of 2017, there has been a shortage of passive originals and power devices, which has ushered in a wave of price increases. In particular, MOSFETs and IGBTs in power devices have risen by more than 40%. The reason for the shortage of the market is mainly because the enthusiasm of the large-scale expansion of the leading market in the past few years is not strong, but with the increasing application of power devices in emerging fields such as automobiles and the Internet of Things, power devices are beginning to appear in short supply. Not only IGBTs, electronic control capacitors, diodes and other electronic devices have generally increased prices, greatly increasing the material cost of motor controller manufacturers. In addition to raising the price of the product, the shortage of goods also leads to a gradual increase in the delivery cycle of the manufacturers, and small and medium-sized motor controller manufacturers themselves may also have difficulty in shipping.
In addition, due to the gradual decline of subsidies, motor controller manufacturers also need to face the price reduction requirements from car companies. In the face of upstream and downstream pinch, the profit margin of motor controller manufacturers is getting smaller and smaller. According to the three listed motor controller manufacturers of Huichuan Technology, Lanhai Huateng and Zhuhai InBor, the gross profit margin in 2017 is around 37%, far lower than previous years. Blue Ocean Huateng expects net profit attributable to shareholders of listed companies from January to June 2018 to be between 1.1 million and 150 million, a year-on-year change of -84.47% to -78.83%. It can be seen that in 2018, upstream IGBTs continue to increase in price and downstream electric vehicle subsidies decline. Under the double pinch, the motor controller manufacturers have further increased the difficulty of operation.
As the capacity of large factories is difficult to expand rapidly in a short period of time, it is difficult to alleviate the shortage of power devices such as IGBTs in 2018. The profit level of motor controller manufacturers will still be squeezed, and some small and medium-sized manufacturers may have to withdraw from the marke
2, motor controller supply mode
From the perspective of supply chain model, domestic motor controller manufacturers are mainly divided into two categories: one is electric vehicle manufacturers, and the electric motor controllers they produce are generally supplied to their own vehicle products; the other is electric vehicles. Component companies that produce electric vehicle motor controllers are typically supplied to specific or non-specific vehicle companies.
In the future, some car companies may increase the research and development of motor electronic control, and master the technology, and then produce their own; but there are still a large number of car companies that do not have such conditions will still choose third-party enterprises to supply.
At present, the supply modes between China’s electric vehicle drive motors, motor controllers, system vendors, and OEMs are broadly divided into the following categories:
A: OEM independent support, that is, the overall car factory with the drive motor and controller production capacity for internal support. For example, BYD, from key component IGBTs to motors and controllers, to complete vehicle manufacturing, is done internally.
Second: The enterprise also has the production capacity of the two products of the drive motor and controller, and the product is directly supplied to the OEM; or directly to the system supplier, and then supplied to the OEM by the system manufacturer.
Third: The OEM purchases the drive motor and controller separately for assembly and production; or the system manufacturer purchases the drive motor and controller, and supplies it to the OEM after assembly.
Four: The automaker purchases separately from the motor factory and the controller factory, and the motor plant provides system integration.
Five: The automaker purchases separately from the motor factory and the controller factory, and the controller factory provides system integration.
3, motor controller technology development trend
- Permanent magnet motor is still the mainstream route – permanent magnet synchronous motor is the mainstream technical route of drive motor technology, because its speed range and efficiency are relatively high, but need to use high-priced rare earth permanent magnet material NdFeB; some European and American cars The use of AC induction motors (such as Tesla) is mainly for the purpose of reducing the cost of the motor. The disadvantage is that the speed range is small, the efficiency is low, and a higher performance governor is needed to match the performance. Japan is also stepping up research and development of DC brushless motors to reduce dependence on rare earth materials.
- Highly integrated, miniaturized design is the development trend – from the perspective of electric drive system, integration is mainly reflected in two aspects: 1) Motor: motor and engine assembly, motor and gearbox assembly integration 2) Controller: integration of power electronics assembly. For example, Nissan Leaf integrates motors, reducers and controllers. This represents a trend that is small in size and can improve performance while reducing costs. The integration capability of the wind power drive system is advanced all over the world and is the direction for Chinese companies to learn in the future.
Post time: Aug-17-2018