50 years of leadership
in electric propulsion

  • 1974

    1974 - 

    SME foundation

    SME group is founded.

  • 1982

    1982 (1995) - 

    In-Wheel Motor R&D

    Start of design work on an innovative compact motor system that uses a brushless external rotor configuration with permanent magnet, a generator and advanced power electronic controls that can be embedded inside a regular-size wheel at Hydro-Quebec’s IREQ.

  • 1990

    1990 - 

    Microelectronics business started

    SME starts the production of its own DCB power module.

  • 1991

    1991 - 

    First wheel motor prototype

    Development of the 4-wheel motor system and its control software.

  • 1995

    1995 - 

    Test vehicle equipped with 4-wheel motor system

    A vehicle is driven and controlled by the 4-wheel motor system.

  • 1998

    1998 - 

    TM4 foundation

    Technologies M4 Inc. (TM4) foundation. 1998 also marks the development of TM4’s first PM generator system (10 kW).

  • 1998

    1998-2008 - 

    Prototype Work

    1998-2009: Prototyping work for various OEMs, including PSA, Tata Motors, Volvo Trucks and more.

  • 1999

    1999 - 

    Electric motor production starts

    SME starts the production of its own designed AC electric motor for the forklift market.

  • 2007

    2007 - 

    SME China founded

    SME expands to China with the opening of an office and manufacturing facility in Shanghai.

  • 2012

    2012 - 

    Chinese JV (PEPS) founded

    TM4 and Prestolite Electric Beijing Limited (PEBL) entered into an agreement for the creation of a Sino-Foreign equity joint venture company named Prestolite E-Propulsion Systems (Beijing) Limited (PEPS).

  • 2012

    2012 - 

    TM4 SUMOTM systems launched

    Launch of the TM4 SUMOTM HD series, targeting primarily the heavy-duty truck and bus market.

  • 2013

    2013 - 

    Ashwoods Electric Motors established

  • 2014

    2014 - 

    High volume orders In China

    TM4 receives significant orders from important bus manufacturers in China. The production officially launches in Beijing.

  • 2016

    2016 - 

    SME acquires Schwarzmüller Inverter

    SME acquires Schwarzmüller Inverter, a company with 25 years of experience in inverters for low voltage AC-motors ranging from 24V to 120V, 60A – 1000A.

  • 2017

    2017 - 

    Commercialization of IPM motors

    Since 2015, Ashwoods had been working on the development of power-dense IPM motors. 2017 marks the commercialization of this series.

  • 2018

    2018 - 

    10,000 SUMO systems Sold in buses and trucks

    TM4 reached a major milestone with the production of its 10,000th  TM4 SUMO™ electric powertrain for buses and commercial vehicles.

  • 2018

    2018 - 

    TM4 is acquired by Dana Incorporated

    Dana Incorporated (NYSE: DAN) and Hydro-Québec announce a joint-venture partnership in which TM4 Inc., a subsidiary of Hydro-Québec, become Dana’s source for electric motors, power inverters, and control systems. As part of this agreement, Dana become a majority shareholder of TM4 in exchange for CA$165 million (approximately US$127 million). Hydro-Québec maintain a 45 percent interest in TM4.

  • 2019

    2019 - 

    Dana gains stakes in Ashwoods Electric Motors

    As part of the Oerlikon Drive System acquisition, Dana gains stakes in Ashwoods Electric Motors.

  • 2019

    2019 - 

    TM4, SME, and PEPS becomes Dana TM4

    On July 19th, 2019, Hydro-Québec announced that the company has invested $85 million to secure the growth of TM4, now called Dana TM4. Dana TM4 now holds 100% of Chinese company Dana Electric Motor Co. Ltd , formerly called Prestolite E-Propulsion Systems (PEPS), in which Dana TM4 previously held a 50% interest. Dana TM4 now also integrate SME. SME low-voltage systems are a perfect complement to the Dana TM4 high-voltage product line.

  • 2019

    2019 - 

    SME is acquired by Dana Incorporated

    Dana Incorporated completes the acquisition of SME Group, headquartered in Arzignano, Italy.

  • 2020

    2020 - 

    Ashwoods Electric Motors becomes Dana TM4

    Dana TM4 now also integrate Ashwoods Electric Motors. Their low-voltage IPM motors are a perfect complement to the Dana TM4 current product line.

  • 2020

    2020 - 

    Dana TM4 to establish plant in India

    Dana announced plans for a 4,600 square-meter (50,000 square-foot) facility in Pune, India, that will produce Dana TM4™ low- to high-voltage electric motors, inverters, and vehicle control units.

  • 2021

    2021 - 

    Dana TM4 to establish new electrodynamics facility in Åmål, Sweden

    Dana TM4 will establish a new manufacturing facility in Åmål, Sweden that will initially produce electric motors for the mobility industry.  This $50 million fully sustainable operation has received $10.7 million in support from the Swedish business development community.