BLDC stands for Brushless DC Motors. This type of a DC motor does not comprise of a commutator and brush arrangement. It consists of many coils along with a small circuit, which helps change the direction of the current and rotates the motor. Due to the absence of brushes, the motor rotates without friction force and hence is more efficient at lower speeds. The BLDC or Brushless DC Motors produce high starting torque and suitable for high power density design. The Electric Vehicle manufacturers prefer using BLDC Motors because of their traction characteristics.
How are BLDC Motors used in an EV?
Nowadays, the Electric Vehicle Industry is booming, and many professional teams are regularly working on its R&D and improving its efficiency. Earlier the EVs used either a single or dual-motor set up to rotate the front or rear axles of the car, which in turn was responsible for transmitting power to wheels and hence rotating the wheels. The EV technology is evolving, and the Automobile companies are working on its advancement, the BLDC hub motors are now preferred over the former one. This type of arrangement gets individual brushless motors for each wheel of an EV. It means that the power is directly transferred to the driving wheels, resulting in a reduction in power loss. This set up is very efficient and hence gaining popularity. The Electric motorcycles, buses, and the 4-wheelers are gradually inculcating the use of such Brushless DC Motors.
Merits and Demerits of Brushless DC Motors
The brushless motors also have both merits and demerits. These motors are easy to install and can directly be fixed on the hub of the wheels. The power transmission is smooth and minimal, or no power reduction takes place. No differential is required when using these motors. It helps in reducing the number of components in the EV, and hence result in reducing its weight. Since these motors comprise of electrical technology and no mechanical, therefore less maintenance is required.
Although this hub set up is gaining popularity, it still has some demerits. The hub motors are bigger, which increases the unsprung mass. Also, these motors generate high torque. Hence the speed is low as compared to other DC motors. The motors comprise electrical connections rather than mechanical, hence the complexity of the connections increases. The BLDC motors are placed in between the wheels and chassis, which can cause fire hazards due to rubbing and scratching.
Delta Moto Corp BLDC Motors contributing for EV Manufacturing in India
But the advantages of using the BLDC motors outweighs its disadvantages. Hence the Electrical Vehicle Industry is gradually increasing the use of BLDC Motors in the EVS. Many Indian manufacturing companies and other big OEMs are paying attention to expanding the Brushless DC Motors market. This motor is an integrated component of an electric vehicle, and its advancement and expansion will help grow the EV industry. The Indian manufacturers are showing interest in investing and developing these powerful BLDC motors. Therefore the production of Hub motors in India will help in localization of EV manufacturing in the nation.
Delta Moto Corps is one such Indian company that provides dynamic solutions in the field of Electric Mobility. The team of Delta Moto Corp is working on R&D and other improvements in the components of an EV. The company is effectively producing such crucial parts along with the BLDC hub motors locally. It helps in reducing the dependency of India on other countries for importing the components of an EV. It will encourage big OEMs to buy the parts from local producers, hence leading to the localization of EV manufacturing. The India Government is also spreading awareness and wants our citizens to become Aatm Nirbhar (Self-reliant) and buy locally produced goods.
If the Indian EV Industry focusses on investing and production of the parts of the electric vehicle, it will be beneficial for both OEMs and assembling factories to manufacture the electric vehicle locally. First of all, it will reduce the cost of a brand-new Electric Car or any other motor vehicle. Secondly, it will help in encouraging citizens to buy electric cars. Since the manufacturing of the EV is done locally, the after service of an EV will be hassle-free. Therefore, the localization of EV manufacturing will help in expanding the E-Mobility in the nation.