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small and medium batch prototype - OEM Customized new energy vehicle housing
Business Scope: CNC Machining / Sand Casting / 3D printing / Transparent Prototypes / Medical Device Prototypes
Dimension: Based on clients' design drawing
Design: Based on clients' design drawing
Feature: Based on clients' design drawing and requirements
Surface treatment: as your requirements
Material: steel / aluminum - Any other material and dimension depends on customers' demand.
Usage: Machinery /Automobile
Processing Equipment: 5-axis machining center(800S U) / 3-Axis Machining Center(1270) / 3-Axis Machining Center(960) / 3-Axis Machining Center(850)
Checkout Equipment: CMM(coordinate measuring machine) / 3D scanner / X-ray fault detector / tool preseting measuring instrument / Roughness profiler / Cleanliness detector / Water and air double check air tightness detector
We are ISO 9001 / IATF 16949 / ISO 14001 / OHSAS18001 certified firm.
Other Hot Products: The Motor Shell / Reducer Housing / Gearbox Housing / Hybrid Transmission Housing / Motor Cover
2. Research status of hub motor technology
The many advantages of wheel hub motors applied to electric vehicles are highly favored by researchers at home and abroad, and many manufacturers have achieved good results in the development of wheel hub motors. In foreign countries, the research windlass on the reduction drive wheel hub motor is in-depth is Japan. The ECO independently developed by Keio University, the Colt KAZ independently developed by Keio University, the UOT March II independently developed by the University of Tokyo, and the Colt EV independently developed by Mitsubishi Corporation are all planetary gear type gearboxes for a series of electric vehicles [2]. The Q'mo electric vehicle developed by NTN has the advantage of a small radial size and a large reduction ratio, which increases the torque. Schaeffler has independently developed a hub motor with a high degree of integration of motor and reducer, in which a Tongkang planetary gear reducer is used, and the size of this motor is smaller than normal motors, as shown in Figure 2. The French company, École de la rue, has developed an active wheel for electric vehicles, using a hub motor combined with an active suspension, as shown in Figure 3, which provides excellent performance and on the basis of which the French company Venturi has designed a concept version of the supercar Venturi Volage.
Unlike the inner rotor hub motor, the outer rotor hub motor does not need to be equipped with a reduction device. The Lancer developed by Mitsubishi has a maximum speed of 150 km/h and a driving range of 250 km, which meets the performance requirements for daily use. The GM's S10 model is powered by a bombardment flux hub motor, which increases the torque density by increasing the motor diameter and the number of very large pairs. The Protean Drive hub motor from Protean Electrics in the UK was ahead of the then available motor drive systems in terms of power and torque density, resulting in an electric car with outstanding performance in cooperation with BRABUS.
Canada's TM4 company independently developed an integrated drive system with a high level of integration, using an external rotor hub motor, eliminating the need for a brake drum and greatly reducing the mass of the system.
In contrast, China's electric vehicle hub motors are in the early stages of development in terms of technology and design development. Tongji University has developed the "Chunhui" series of electric vehicles, which use low-speed permanent magnet brushless DC hub motors. BYD independently developed the "ET" concept car and exhibited it at the auto show, which adopts four hub motors with 25 kW power and up to 5500 r/min speed. Chery's self-developed "Ruiqi" XⅠ-EV pure electric vehicle is equipped with a wheel hub motor with a maximum output of 166 kW and a maximum torque of 1 650 Nm. The electric vehicle "Chuanqi" was exhibited by GAC Group at the auto show, with a motor manufactured by Protean Electric with a maximum power and torque of 83 kW and 825 Nm respectively. At present, although domestic automobile manufacturers, universities and research institutes have achieved some breakthrough results, the practical application of the relevant technology is not mature enough. Therefore, it is of great significance to conduct continuous and in-depth research on the application of electric vehicle hub motor technology and to improve the production and mass production capacity of each core component of hub type electric vehicles in China, so as to ensure the sustainable and healthy development of electric vehicle industry in China.
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Main Product:
3D CNC Milling Prototype,
CNC Machining,
Automobile Prototypes parts,
Construction Machinery Prototype Parts,
Medical Device Prototype Parts,
Sand Casting
