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- Revolutionary Magnet-Free Electric Motor Innovation Rocks Car Industry!
Revolutionary Magnet-Free Electric Motor Innovation Rocks Car Industry!
Discover how ZF's groundbreaking magnet-free electric motor is reshaping the future of electric vehicles. Explore the implications of this cutting-edge technology on efficiency, performance, and sustainability in the automotive industry.
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Video Transcript
One of the key components that determine the performance of an EV is its motor.
The motor is responsible for converting electrical energy into mechanical power to drive the wheels,
making it a crucial element in the overall efficiency and performance of the vehicle.
There are various types of motors available for EVs, each with its own set of advantages and disadvantages.
These include induction motors, permanent magnet motors, switched reluctance motors, and more.
or factors such as efficiency, cost, weight, size, and performance play a significant role
in the selection of the appropriate motor for an EV.
In the midst of this rapidly evolving landscape, ZF, a leading technology company, has made
a groundbreaking development with its magnet-free electric motor.
So what does a magnet-free electric motor look like?
And what does this mean for the EV industry?
Join us as we take a look at ZF's new motor and how it has shocked the entire auto industry.
Electric vehicles are becoming more popular and widespread as they offer a cleaner and
greener alternative to fossil fuel-powered cars.
However, EVs also face some challenges, such as the need for efficient and reliable electric
motors that can propel them.
Most EVs today use permanent magnet synchronous motors, PMSMs, which are based on rare earth
magnets that generate a strong and constant magnetic field.
These magnets, however, are not ideal for EVs as they pose serious problems for the environment and the economy.
They are scarce, expensive, and often extracted from regions where mining practices are detrimental to the ecology and the society.
To overcome these problems, many companies around the world are working on developing magnet-free electric motors,
which do not rely on rare earth magnets, but instead use electric currents to create magnetic fields.
Among these companies, Zeef Friedrichshafen, a German automotive supplier, has come up with
a novel and ingenious solution, which is similar to another German company, Mali, but with
a unique twist. Zeef has managed to integrate the inductive transmitter, which is the device
that generates the electric current within the rotor itself, which is the part of the motor
that rotates. This results in a very compact and lightweight magnet-free motor which can
fit into smaller spaces and reduce the overall weight of the EV.
This innovative design also offers impressive performance levels, which can compete with
or even surpass the conventional PMSMs.
The new magnet-free motor can deliver and store as much electricity as the PMSMs, and it
can also charge and discharge faster than them.
This means that the new motor can provide more power and speed for the EV and also reduce
the charging time and increase the driving range.
Martin Fisher, a ZF Board of Management member, said,
With our technology, we can replace the magnets and yet have the same performance as the synchronous machine,
where the electric current would create a magnetic field as good as the magnets,
and better than the other types of electric motors.
The main advantage of choosing magnet-free motors over PMSMs
is that they can eliminate the need for rare earth magnets, which are a critical but problematic component in traditional motors.
By using electric currents instead of magnets, the magnet-free motors can avoid the environmental
and supply chain issues associated with rare earth magnets, which can be harmful and disruptive
for the planet and the people.
However, not all magnet-free motor designs are equally efficient and effective.
Some of them introduce additional elements, such as sliding rings or brushes, which act
as connectors for the electric current to reach the rotor windings, which are the coils
of wire that create the magnetic field.
These elements, however, have their own drawbacks.
They increase the size and weight of the motor, which can affect the EV's performance and
fuel efficiency.
