Are you ready to witness the revolution that’s reshaping the automotive landscape in India? As per reports Indian electric vehicle (EV) market is expected to grow to $150 billion by 2030. With this growth comes a growing demand for EV motors which are the heart of any EV.
We understand the challenges you face while navigating the complexities of electric vehicles, and we’ve got your back! In this article, we will take a look at the top EV motor manufacturer in India. But not only that, we’ll also delve into some of the related aspects, including:
- How does an EV motor work?
- Types of EV Motors
- What is the rpm of the EV motor?
- What is the efficiency of EV motors?
- The life expectancy of an EV Motor?
Moreover, we’ll be shedding light on some remarkable EV motor specifications from renowned automakers like Tata Motors, including their Tata Nexon EV motors and Tata Tiago EV motor.
So, fasten your seatbelts, and let’s rev up the engine of knowledge as we explore the powerhouse that is driving India’s electrifying future!
How does an EV motor work?
An EV motor is an electric motor that converts electrical energy into mechanical energy. This mechanical energy is then used to turn the wheels of the EV, which properly the vehicle forward.
In an EV motor, the stator is the part of the motor that creates the magnetic field. The stator is made up of a series of coils of wire that are arranged in a circle. When the driver applies the accelerator, the battery in the car supplies electricity to the stator. As current runs through the stator coils, it creates a rotating magnetic field.
The rotor is the part of this motor that turns. The rotor is made up of a series of metal bars that are arranged in a circle. The metal vars are connected to a shaft, which is part of the motor that turns the wheels of an EV
When the rotating magnetic field of the stator interacts with the metal bars of the rotor, it creates an electric current in the rotor bars. This electric current creates a magnetic field in the rotor bars, which opposes the magnetic field of the stator. This interaction of magnetic fields causes, the rotor to turn and subsequently provides mechanical energy to turn the car’s gears. Once the gear is rotating, the wheels turn too.
The speed of the rotor is determined by the frequency of the current that is running through the stator coils. The higher the frequency of the current, the faster the rotor will turn.
Types of EV motors
Brushed DC motors: They were the first type of motor used in EVs and now they are not commonly used. These types of motors are relatively inexpensive and have a simple design which makes them an attractive option for low-cost electric vehicles. A brushed DC motor consists of a rotor, a stator, and a commutator. The brushes in the motor provide electrical contact between the stator and the rotor.
Brushed DC motors may require frequent maintenance due to the brushes wearing out over time and they are less efficient than some of the other types of motors used in EVs.
Brushless DC Motors(BLDC): BLDC motors do not have brushes, which means they have a simpler design and are less prone to wear and tear. By employing electronic commutation, BLDC motors eliminate the friction and wear associated with brushes, ensuring quieter operation and prolonged lifespan. These motors are highly versatile and find applications in everything from electric bicycles to electric scooters.
They are more expensive than brushed DC motors due to their more complex design.
Induction Motors: They are also known as asynchronous motors. Induction motors have a stator and a rotor, but they dont have a commutator. So they rely on electromagnetic induction to transfer power between the stator and rotor. They are more efficient and have longer lifespans than DC motors.
They have a higher torque density which means they can generate a lot of torque even at low speeds. This makes them ideal for EVs which require a lot of torque to get moving from a standstill.
Switched Reluctance Motors: This type of motor relies on the principle of magnetic reluctance, where the rotor aligns itself with the minimum magnetic reluctance path. SRMs are celebrated for their robust design, reduced complexity, and potential for cost-effectiveness.
SRMs have more alow torque density than some of the other types of motors used in EVs but are still considered a viable option for certain applications where simplicity, durability, and cost-effectiveness are the primary concerns.
Permanent Magnet Synchronous Motors: They use permanent magnets which generate a magnetic field that drives the rotor. PMSM have higher power and torque density making them suitable for EVs.
They are more expensive than DC Motors and require more complex control systems, but they are more efficient and reliable too.
What is the rpm of the EV motor?
The RPM of an EV motor is the revolutions per minute that the motor turns. The RPM o an EV motor will vary depending on the type of motor, and the speed of the vehicle. Induction motors typically have a lower RPM than synchronous motors. This is because induction motors are more efficient at lower RPMs. An electric vehicle motor can give up to 10,000 rpm, some even 20,000 rpm, this is much higher than the typical 4000 to 6000 rpm you get in an Internal Combustion Engine powered vehicle.
What is the Efficiency of EV motors?
The efficiency of an EV motor is the percentage of electrical energy that is converted into mechanical energy. The efficiency of EV motors is typically between 85% and 90%. This means that 85% of the electrical energy, that is used to power is converted into mechanical energy, which propels the vehicle forward.
The efficiency of an EV motor is affected by a number of factors, including the type of motor, the size of the motor, and the speed of the vehicle. Induction motor are typically more efficient than synchronous motors at lower RPMs.
The life expectancy of an EV Motor?
The life expectancy of an electric car motor depends on different types of factors such as:
- The type of motor
- Size of the motor
- Driving habits of the owner
- Different environmental factors like humidity, temperature, etc
- Unexpected load changes
So it’s hard to give a one-shot answer for that. However in general an electric car motor can last for more than 15 to 20 years. Compared to an ICE, an electric car motor has fewer parts which mean less wear and tear, easier to maintain.
Top EV motor manufacturer in India
There are a number of EV motor manufacturers in India. Let’s discuss the top 5
Bharat Heavy Electricals Limited(BHEL)
BHEL is a state-owned company that is one of the largest manufacturers of electric motors in India. BHEL offers a wide range of EV motor, including induction motors, synchronous motors, and switched reluctance motors. BHEL’s EV motors are used in a variety of vehicles, including cars, buses, and two-wheelers.
Mahindra Electric: Mahindra Electric is a subsidiary of the Mahindra Group. Mahindra Electric is one of the leading manufacturers of electric vehicles in India. Mahindra Electric offers a wide range of EV motors, including induction motors, synchronous motors, and permanent magnet motors. Mahindra Electric’s EV motors are used in a variety of vehicles, including cars, buses, and 3-wheelers.
Tata Motors: Tata Motors is one of the largest automakers in India. Tata Motors offer a range of electric vehicles, including the Tata Nexon EV and the Tata Tigor EV. Tata Motor’s EV motors are manufactured by its subsidiary, Tata AutoComp Systems. Tata AutoComp systems offer a wide range of EV motors, including induction motors, synchronous motors, and permanent magnet motors.
Ashok Leyland: They are one of the largest commercial vehicle manufacturers in India. Leyland offers a range of electric vehicles, including the Ashok Leyland e-rickshaw and the Ashok Leyland e-bus. Ashok Leyland’s EV motors are manufactured by its subsidiary, Switch Mobility. It offers a wide range of EV motors, including induction motors, synchronous motors, and permanent magnet motors.
Delta Electronics Inidia: Delta Electronics India is a subsidiary of Delta Electronics, a global manufacturer of poer elctrconics. Delta elctrconics India offers a wide range of EV motors, including induction motors, synchronous motors. Delta Electronics India’s EV motors are used in variety of vehicles, inclsuing cars, buses, and two-where
Tata Nexon ev motor specifications
- Tata Nexon EV MAX motor specifications:
Motor type: Permanent magnet synchronous AC motor
Electric motor power(PS): 143
Electric motor torque(Nm): 250 Nm
Thermal management system: liquid cooled.
- Tata Nexon EV Prime motor specifications:
Motor type: Permanent magnet synchronous AC motor
Electric Motor power(bph): 127
Electric motor torque(Nm): 245 Nm
Thermal management system: liquid cooled.
Tata Tiago EV motor specifications
Electric Motor type: Permanent magnet synchronous motor
Eletric motor max torque(Nm): 114
Electric Motor power(bph) : 73.75 bph
Acceleration: 0-60 km/h in 6.2 seconds
Conclusion
As we draw the curtain on our exhilarating journey through the electric vehicle industry in India, we stand witness to a monumental transformation that is shaping the future of mobility. We have discussed the top EV motor manufacturers in India, how an EV motor works, electric motor speciication of top EVs in the country and much more.
The top EV motor manufacturer in India, Bharat Heavy Electricals Limited(BHEL), stands tall as an exemplar of engineering excellence and commitment to sustainable transportation.
As we venture further into the future, the electric vehicle industry in India is poised for even greater heights. With advancements in EV motor technology, battery efficiency, and charging infrastructure, the road ahead holds promises of a cleaner and more sustainable transportation ecosystem
So, embrace the electric mobility revolution with open arms, and let’s power ahead into the bright, electrified future that awaits us!