Home > Industry Information > Can The Cost Be Reduced By 50%?Magnetic Resistance Motor "Entering" Electric Vehicle Market
On August 27, according to foreign media reports, the German car company Hofer PowerTrain announced that it would jointly cooperate with British startup Monumo, which aims to use advanced artificial intelligence (AI) and Deeptech innovation technology to drive electric driversThe design time is shortened by 80%.
Monumo's scalable,Machine learning friendly engineANSER can evaluate millions of detailed concepts in a few days.This ability enables both parties to fully explore complex design space, develop first -class electric driver solutions, and develop and industrialize in Haofer's power assembly factories.The application of advanced data -driven machine learning (ML) methods can bring significant improvements in the radical car development time framework, so that the team can greatly shorten the conceptual design stage.
In order to reduce the permanent magnet content,Monumo has proposed a solution as early as February this year:
Monumo uses AI to develop a switch magnetic resistor (SRM) that does not contain rare earth elements, which can reduce the torque pulse in the entire driving cycle by 50%.This proprietary technology runs about 10 million simulation per day to test the potential iteration of motor design and determine the best parameters of specific use cases, whether it is to reduce costs, improve efficiency, or improve sustainability.
Switch magnetic motor (SRM), also known as the variable magnetic resistance motor (VRM), is a DC motor with a magnetic resistance torque driver.Compared with other motors, the biggest difference between magnetic resistance motors is that the overall structure is simple and the production cost is low.Its rotor convex is composed of ordinary silicon steel sheets. There is no winding or permanent magnet, and no wizard, sliding ring, etc. It also reduces the vortex and stagnation loss of the motor.
Comparison of the cost of switching magnetic resistance motor and permanent magnet motor Source: Tokyo University of Technology
According to estimates, in some design, the cost of switching magnetic resistance motors is lower than permanent magnet motorAbout 50%.In terms of rated point efficiency, permanent magnet synchronous motorHigh -efficiency area efficiency is about96%, the switching magnetic resistance motor is about 91%; in the case of low -speed torque, the working condition of 1500 rpm and 300 Nm as an example, the permanent magnet synchronous motor efficiency is about 87.43%, the switching magnetic resistance motor is about 86.13%, low speeds at low speeds, low speeds at low speeds, low speeds at low speedsThe two motors are equal to the two motors in the case of large torque.
The switch magnetic resistance motor is more solid and durable, simple in structure, and cost -effectiveness. It is also more suitable for applications such as electric vehicles and hybrid vehicles, industrial automation, aviation, and aerospace requires high reliability and efficient applications.
In this regard, the expert said that the power assembly is in "2024 Electric Vehicle 800V High -voltage System Investigation White Paper "made a detailed reiction for the main players and product application cases of switch magnetic resistance motors at home and abroad:
At present, the "White Paper" has entered the stage of research and writing, and companies such as Silanwei have also participated in. Welcome more car manufacturers, electric drives, electrical control, vehicle power supply, charging piles, semiconductor and components and other industrial chain leading enterprises and componentsExperts participate in writing, provide a strong reference for industry decision makers, and work together to create a new chapter in the industry.
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