[Due to the increasing size of the archives, each topic page now contains only the prior 365 days of content. Access to older stories is now solely through the Monthly Archive pages or the site search function.]
Williams: Formula E battery power to increase to 170 kW for season two; 70 kWh pack for Evoque-E
September 11, 2015
Williams Advanced Engineering, the sole supplier of the battery packs for the FIA Formula E Championship, confirmed that the maximum power output of the batteries for the racers will increase to 170kW during each race in season two of the Championship.
The 28 kWh (maximum usable) battery packs, which use cells from XALT Energy (earlier post), were initially designed to meet season one technical specifications from the FIA and operated during a race at a maximum power of 133 kW. Following successful pre-season testing this was increased to 150kW for the start of season one to increase the performance of the cars.
Nissan to address KERS issues of GT-R LM NISMO before returning to FIA World Endurance Championship
August 07, 2015
Nissan will delay its return to the LM P1 class of the FIA World Endurance Championship and instead focus on technical issues that challenged its race team during the Le Mans 24 Hours in June. Issues with the kinetic energy recovery system (KERS) meant that the Nissan GT-R LM NISMO (earlier post) had to run at the Le Mans 24 Hours on engine power alone. The next race for the Nissan GT-R LM NISMO would have been the 6 Hours of Nürburgring, round four of the FIA World Endurance Championship, on 30 August.
The Nissan GT-R LM NISMO represents an innovative interpretation of the sport’s technical regulations: a front-engined, front-wheel-drive car that powered by a V6 3.0-liter twin turbo gasoline engine and a mechanical flywheel Energy Recovery System (ERS) that runs in the 2MJ class.
Toho Tenax’s prepreg helps to cut 1.1MW Tajima Rimac electric racer’s weight
June 22, 2015
Teijin Limited announced that carbon fiber sheet pre-impregnated with matrix resin, or prepreg, made by Toho Tenax Co., Ltd., the core company of the Teijin Group’s carbon fibers and composites business, is used in the lightweight body of a new 1.1 MW electric racecar operated by Team APEV with Monster Sport. The Tajima Rimac E-Runner Concept_One—driven by Tajima CEO Nobuhiro “Monster” Tajima—will race in the Electric Modified Division in the Pikes Peak International Hill Climb from June 22 to 28.
The racer, developed by Rimac Automobili in collaboration with Monster Sport and Team APEV, is based on an aluminum space frame covered with the carbon fiber composite body panels. A 57 kWh Rimac battery pack powers four Rimac permanent magnet synchronous motors, delivering combined maximum output of 1,100 kW (1,475 hp) and 1,500 N·m (1,106 lb-ft) of torque.
New generation GKN Hybrid Power flywheel hybrid system for Audi R18 e-tron
June 16, 2015
Among its many other changes, the hybrid Audi R18 e-tron quattro that placed third at the Le Mans 24 Hours this past weekend featured a new generation of the Gyrodrive flywheel hybrid energy storage system, developed by GKN in collaboration with Audi Sport. (Earlier post.) Audi driver André Lotterer set a new record lap time of 3m 17.47s with GKN’s technology on board.
GKN increased the energy storage capacity and average power rating while retaining the same dimensions and mass, enabling Audi to compete this year in the 4-megajoule of hybrid energy category. GKN said the technology advances embodied in the new flywheel hybrid system will accelerate its work to scale the technology into a lower-cost alternative to battery hybrids for transport applications.
Porsche presents more efficient Gen 2 919 Hybrid LMP1 racer for 2015
March 27, 2015
Porsche has presented the second generation of its Le Mans Prototype 919 Hybrid race car. (Earlier post.) The new racer will compete in the 8 MJ category (8 MJ of recovered energy per race lap)—the highest of the current four energy categories in the LMP1 class. (The amount of liquid fuel that may be used in a lap decreases in proportion to the amount of electrical energy a driver is able to employ.)
Although the basic concept of the Class 1 Le Mans Prototype (LMP1)— a downsized turbocharged direct injection gasoline engine and two different energy recovery systems—was retained in the second generation, virtually every component was refined. System power now totals nearly 1,000 hp (746 kW). The goals for the next evolutionary stage were to make the vehicle more efficient, more rigid, easier to handle, lighter and yet more robust.
Audi revamps 2015 R18 e-tron quattro Le Mans diesel hybrid racer; 4MJ class
March 23, 2015
In the 2015 FIA World Endurance Championship (WEC) and in the Le Mans 24 Hours as the season’s pinnacle event, Audi will compete with a thoroughly revised R18 e-tron quattro diesel hybrid racer in the 4-megajoule class. (Earlier post.) A two-fold quantity of hybrid energy, fundamentally revised aerodynamics, the next step in lightweight design and detailed optimization work characterize the fifth generation of the Audi R18.
Audi, the only manufacturer to date to have won the Le Mans 24 Hours with hybrid racers, has doubled the amount of energy recovered per race lap from 2 to 4 megajoules (MJ). During braking, energy is recovered which the system subsequently feeds back to the front axle on acceleration. The electrical machine that performs this task now delivers an output of more than 200 kW (272 hp)—a significant increase compared to last year. Therefore, Audi has increased the capacity of the energy storage system as well.
DeltaWing to develop GT race car concept; step toward street-legal DeltaWing sports car
DeltaWing Technology Group is beginning development of a DeltaWing GT race car concept. The racer will be designed to demonstrate that with far less horsepower than many of today’s best sports cars, a two-seat performance car based on the DeltaWing architecture would deliver the same performance, yet with previously unattained fuel economy and efficiency. Expected to appear in 2015, this new DeltaWing Racing Cars project is a major step toward a street-legal two-seat DeltaWing sports car, the company said.
In Mat 2014, DeltaWing released a rendering of an application of its DeltaWing aerodynamic and lightweight design architecture as a street-legal, four-passenger car. DeltaWing Technologies said at the time that it was seeking OEM partners with the ultimate goal of licensing the DeltaWing vehicle architecture that is 35% lighter, requires 35% less horsepower, and consumes 35% less fuel. (Earlier post.)
Nissan unveils front-engined, front-wheel drive hybrid GT-R LM NIMSO Le Mans challenger
February 02, 2015
Nissan revealed its Le Mans challenger, the Nissan GT-R LM NISMO, during a commercial break for Super Bowl XLIX. Nissan interpreted the sport’s technical regulations in an innovative way, producing a front-engined, front-wheel-drive car that is powered by a V6 3.0-liter twin turbo gasoline engine and a kinetic energy recovery system.
The front tires are wider than those in the rear (14" vs 9") due to the way that mass is distributed in the car. Nissan moved the weight bias forwards to provide traction for the front-engined, front-wheel drive. The aero is also moved forward; hence, Nissan moved the capacity of the tires forward to match the weight distribution. The aero center of pressure, the mass center of gravity and the tire capacity are all in harmony, said Ben Bowlby, Nissan’s LM P1 Team Principal and Technical Director. That means bigger tires at the front than the rear.
Mercedes AMG PETRONAS unveils 2015 F1 W06 Hybrid
February 01, 2015
The Mercedes AMG PETRONAS Formula One Team unveiled its 2015 Formula One World Championship challenger, the F1 W06 Hybrid, ahead of the first day of pre-season testing at the Circuito de Jerez in Spain.
An intensive design phase combining incremental gains and targeted innovation has produced the F1 W06 Hybrid, a car which delivers mechanical, structural, aerodynamic and weight saving developments over its predecessor, the F1 W05 Hybrid. As the age of F1 hybrid power evolves, the requirements for improved safety, reliability, efficiency and performance increase, the team said.
Renault Sport F1 introduces revamped 2015 hybrid power unit
January 28, 2015
|Renault Energy F1-2015 Power Unit. Click to enlarge.|
Renault Sport F1 has unveiled its 2015 power unit for Formula 1 racing, which incorporates a number of changes compared to its 2014 predecessor (earlier post). 2015 is the second year of competitive use for the power units that feature a V6 turbocharged internal combustion engine coupled to energy recovery systems.
In introducing the new unit, Renault Chief Technical Officer Rob White noted that the second year of a new engine “is always difficult. The 2015 power unit project was started six months before the 2014 units took to the track, ie. before we had any significant experience of the technology. Then we also needed to consider the issues arising during the season. It creates a need to be both forward thinking and reactive. Splitting resources between projects is therefore a delicate balancing act, in the short, mid and long term. While certain decisions can be taken upstream, a number of design decisions were taken quite late in the day, in order to benefit from the experience of the 2014 power unit. The result is a power unit that is very different to its predecessor,” he said.
Mercedes-AMG HPP awarded Dewar Trophy for PU106A Hybrid F1 Power Unit
October 30, 2014
|The Dewar Trophy was presented to Andy Cowell, Managing Director of HPP, along with members of his project team from Brixworth. Click to enlarge.|
The UK’s Royal Automobile Club (RAC) has awarded the prestigious Dewar Trophy, presented for outstanding technical achievement in the automotive industry, to Mercedes-AMG High Performance Powertrains (HPP) for the design of the PU106A Hybrid Formula One Power Unit. (Earlier post.)
The team at HPP was recognized for its development of the most advantageous powertrain within the new Formula One regulations. The aim for 2014 was to raise the engine efficiency from around 29% for the previous normally aspirated 2.4-liter V8 to better than 40% with the new 1.6-liter V6 Hybrid turbo. The successful design, research and teamwork resulted in the Mercedes-Benz PU106A Hybrid Power Unit, which has not only been the dominant powertrain in this first season under the new Formula One rules, but is also arguably among the most thermally efficient gasoline powertrains ever produced, with a claimed thermal efficiency of greater than 40%.
Audi Sport wins 1st FIA Formula E race in Beijing
September 14, 2014
|Lucas di Grassi, FIA Formula E Beijing (Audi Sport ABT Formula E Team). Click to enlarge.|
Audi factory driver Lucas di Grassi and the Audi Sport ABT Formula E team won the inaugural event of the new all-electric FIA Formula E Championship in Beijing. (Next weekend, di Grassi will return to the cockpit of the Audi R18 e-tron quattro hybrid sports car in round four of the FIA World Endurance Championship (WEC) at Austin). The inaugural round of the 10-race season of the global electric race series was closely contested throughout. Winding round the Bird’s Nest stadium built to host the 2008 Olympic Games, the Beijing course supplied all usual ingredients of a city-center circuit, with a succession of straights, chicanes and 90° bends.
For this inaugural season, the entire field is competing in Spark-Renault STR01E single-seaters. (Earlier post.) Spark-Renault, together with a consortium of leading motorsport companies, produced 40 cars for the race, with each driver using two cars during the 1-hour event. Thirty-five of the 40 cars entered crossed the finishing line without incident.