YASA is a British manufacturer of electric motors and motor controllers for use in automotive and industrial applications. The company was founded in 2009 by the CTO Dr Tim Woolmer who is also the holder of a number of related motor technology patents. Although initial commercial adoption was in high-performance cars, markets for YASA e-motors and generators now include the off-road, marine, industrial and aerospace sectors.

History

YASA Limited (formerly YASA Motors Limited) was founded in September 2009 to commercialise a permanent-magnet axial-flux electric motor (''YASA'' stands for ''Yokeless and Segmented Armature''). The motor was developed for the

Morgan LIFEcar The Morgan LIFEcar (''LI''ghtweight ''F''uel ''E''fficient ''Car'') was originally a fuel cell-powered electric vehicle project undertaken by Morgan Motor Company and startup company Riversimple. The goal of LIFEcar was a sports car that would b ...

in 2008 by Dr Malcolm McCulloch and Dr Tim Woolmer, then a PhD student, at the

University of Oxford , mottoeng = The Lord is my light , established = , endowment = £6.1 billion (including colleges) (2019) , budget = £2.145 billion (2019–20) , chancellor ...

. In 2015, YASA Motors launched the P400 Series of motors in serial production for volume manufacturers. In January 2018, YASA's 1st series production facility, capable of 100,000 units per year, was officially opened by the Rt Hon Greg Clark, UK Secretary of State for Business, Energy and Industrial Strategy. In May 2019, the company announced "Ferrari selects YASA electric motor for SF90 Stradale, the company’s first hybrid production series supercar" On 22 July 2021 YASA Limited was acquired by Mercedes-Benz.

Products and applications

YASA offer a range of off-the-shelf and custom motors for use in a number of applications such as electric (BEV) and

hybrid vehicle drivetrain Hybrid vehicle drivetrains transmit power to the driving wheels for hybrid vehicles. A hybrid vehicle has multiple forms of motive power. Hybrids come in many configurations. For example, a hybrid may receive its energy by burning gasoline, but s ...

, power generation and

hydraulics Hydraulics (from Greek: Υδραυλική) is a technology and applied science using engineering, chemistry, and other sciences involving the mechanical properties and use of liquids. At a very basic level, hydraulics is the liquid counter ...

replacement systems.

Standard Motors and Controllers

YASA's standard electric motors have been used in several high-performance cars such as the

Drive eO Drive eO is an engineering company which operates from Latvia and specializes in development of electric and hybrid electric prototype vehicles for demanding applications. It was founded in 2011 to create the first ever hybrid electric rally car ...

PP03 (the first EV to win the

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outright),

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Koenigsegg Regera The Koenigsegg Regera is a limited production, plug-in hybrid grand touring sports car manufactured by Swedish automotive manufacturer Koenigsegg. It was unveiled at the March 2015 Geneva Motor Show. The name Regera is a Swedish verb, meaning "t ...

, and a

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Le Mans Prototype A Le Mans Prototype (LMP) is the type of sports prototype race car used in the 24 Hours of Le Mans, FIA World Endurance Championship, IMSA SportsCar Championship, European Le Mans Series and Asian Le Mans Series. Le Mans Prototypes were create ...

converted by

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, which set a world electric land speed record in 2013.

YASA P400 Series

The YASA P400 series of

electric motor An electric motor is an Electric machine, electrical machine that converts electrical energy into mechanical energy. Most electric motors operate through the interaction between the motor's magnetic field and electric current in a Electromagneti ...

s produces up to peak power at 700 V and of peak torque at 450 Amps. At this peak power, the off-the-shelf P400 Series achieves a

power density Power density is the amount of power (time rate of energy transfer) per unit volume. In energy transformers including batteries, fuel cells, motors, power supply units etc., power density refers to a volume, where it is often called volume p ...

of , with continuous rating of up to . The

stator The stator is the stationary part of a rotary system, found in electric generators, electric motors, sirens, mud motors or biological rotors. Energy flows through a stator to or from the rotating component of the system. In an electric mot ...

of the P400 series motors is oil cooled, and can optionally include additional air cooling.

YASA 750 R

The YASA 750 R is the larger and more powerful electric motor in YASA's standard range, producing up to of peak power at 700 V and of peak torque. Continuous operating power for the 750 R is stated at up to .

YASA Si400 Controller

The Si400 controller delivers 200 kVA from a 5-litre package weighing just . The controller features innovative thermal management including dielectric oil cooling and is suitable for use with induction, permanent magnet and axial-flux electric motors. The Si400 became available for sale on 2 April 2019
YASA launches new series of motor controllers
YASA EDU Concept

Custom Powertrain Solutions: E-Motors, Controllers & Integrated Electric Drive Units (EDU)

As well as standard products, YASA designs and manufactures e-motors that are fully integrated into the drivetrain of their OEM and Tier 1 automotive customers. The e-motors feature power densities up to in vehicle applications that include P2 Hybrid Vehicle Powertrain, P4 traction motor for e-axle and REx (range-extension).

References

External links

* {{Official website, www.yasa.com Engineering companies of the United Kingdom Manufacturing companies of the United Kingdom Manufacturing companies established in 2009 Electric motor manufacturers Electric vehicle industry Electrical engineering companies Industrial machine manufacturers 2009 establishments in England British brands