Royal Automobile Club awards 2018 Dewar Trophy to Integral Powertrain

Integral Powertrain’s e-Drive division was awarded the Royal Automobile Club’s coveted Dewar Trophy on Wednesday 31 October 2018 at the Pall Mall, London clubhouse.

The prestigious award honours the most outstanding technical achievement and innovation in the British automotive industry. The 2018 Dewar Trophy was awarded to Integral Powertrain Limited for the development of the integrated electric motors and inverters that powered the 2018 Pikes Peak winning car. winning car

Integral e-Drive designed and manufactured the highly efficient and exceptionally power-dense integrated motors and inverters that powered the Volkswagen I.D. R Pikes Peak car to outright victory and a new all-time record at the 2018 event. The electric car proved faster than any internal combustion-engined car and set the fastest time in the hill climb history, which spans more than 100 years. The same core electric motor technology is being used by Aston Martin in its first all-electric production car, the Rapide E, which is also the world’s first 800V BEV.

With an impressive track record in powertrain engineering, Milton Keynes-based Integral Powertrain has the ability to engineer motors for the most demanding applications. The Aston Martin Rapide E and the VW I.D. R Pikes Peak car are both at the leading edge in pushing forward the next generation of electrification technology.

Making the award, Dewar Technical Committee Chairman John Wood MBE said, “Integral Powertrain’s development of the integrated motors and inverters that powered the 2018 Pikes Peak winning car in America is, quite simply, an astonishing achievement. Nothing else comes near in terms of the combination of power and torque densities coupled with such high efficiency. This success speaks volumes for the intensely focused and determined approach to pushing the boundaries of technology that clearly exists at Integral Powertrain.” integral powertrain team

Receiving the Dewar Trophy, Roger Duckworth, a Director of Integral Powertrain, said, “On behalf of everyone at Integral Powertrain I would like to thank the Royal Automobile Club for the honour of choosing for us to receive this prestigious award. Every day our design and engineering teams do an amazing job with our core technology and are committed to its evolution to deliver incredibly powerful, efficient electric motors and control units. These units are used around the world in applications from automotive to motorsport and aerospace.

“The Volkswagen I.D. R Pikes Peak engineering programme had ambitious technical and aggressive timing targets. Through the hard work and team spirit of all partners, an optimum solution was created in a record four-and-a-half months; the fruits of those endeavours being outright victory and a new all-time record at the 2018 Pikes Peak International Hill Climb in Colorado Springs.”

2018 marks Integral Powertrain’s 20th anniversary, and the Dewar Trophy caps off a very successful year for the Milton Keynes-based company, which recently announced its collaboration with Williams Advanced Engineering as e-Drive technology partner for the first all-electric Aston Martin Rapide E. The limited production of 155 cars to be built at Aston Martin’s St. Athan site will deliver the four-door sports car looks and dynamics of the Rapide S with an all-electric powertrain replacing the six-litre V12 engine.

Motor specifications

The total power output of the VW I.D. R stands at over 500kW, split between front and rear motors. Due to the extremely short timeframe, Integral Powertrain applied its core technology, enabling it to quickly scale existing frame sizes while still achieving outstanding power density and efficiency. The specifications of the motors are impressive. The front motor weighs just 19.5kg, producing 280Nm of torque, a peak power of greater than 270kW and continuous output of 170kW; when coupled with the inverter, the total package weighs in at 25kg. The rear motor (including inverter) is only 5kg heavier yet is able to produce 460Nm of torque with a peak power of 280kW in the car; more importantly, its continuous power output can be as high as 215kW.

The Aston Martin Rapide E will use two electric motors to drive the rear wheels. These motors also deliver world-leading technology for a road car application, with a peak efficiency of over 98% and torque density greater 17Nm/kg, giving rated power and torque of 460kW and 950Nm respectively. The motors were already in development for Aston Martin prior to selection of the technology for the VW I.D. R Pikes Peak project.


Integral Powertrain will be exhibiting at Electric & Hybrid Vehicle Technology Expo Europe 2019 at stand 136.