Holden Time Attack Concept Racer does 0-62 mph in 1.25 seconds, at least virtually
GM's Holden presents probably the most groundbreaking concept racing electric vehicle that we've ever seen - the Holden Time Attack Concept Racer.
With 1 MW of power from four motors (all-wheel drive and torque vectoring), four three-speed gearboxes and weight of just 900 kg, it's expected to go 0-100km/h (62 mph) in 1.25 seconds! The battery is small, just 25 kWh as the vehicle is envisioned for single-lap time attack (simulated Mount Panorama Lap Time is 1:29.30), however it can be charged in 90 seconds at 1 MW of power!
There are a lot of systems in the car that in the automotive industry are fantasy, like the four Cyclo-gyro fans, with actuated blades enabling variable thrust direction and force for ultra-high downforce levels (powered by 4 Switch Reluctance Motors (SRM), each up to 50kW, 50,000rpm). The other thing is a special powertrain cooling system with liquid-to-gas phase change materials that change phases, while absorbing heat.
Everything sounds cool, that is until we read it's just a digital advertisement for the advanced skills, capability and technology of the GM Holden team.
Holden Time Attack Concept Racer spec:
- 0-100km/h (62 mph): 1.25 sec
- Top Speed: 480km/h (298 mph)
- Reconfigurable Graphene Hybrid Power Pack - 90 MJ (25 kWh) of usable capacity
- Full charge in 90 seconds (1000kW, 800V, 1250A)
- 1 MW (1,000 kW) / 1,340hp of power and 3,240 Nm of torque, all-wheel drive with full programmable Torque Vectoring Traction Control at each corner. Four 250 kW Axial Flux Permanent Magnet Electric Motor Drives x 4 (Inboard mounted), 5,000 rpm maximum eevolutions
- Four Gearboxes: 3-Speed Planetary Automatic Shift Gearboxes x 4 (Ratios 1st 2.97:1, 2nd 1.7:1, 3rd 1:1). First gear ratio enables 9620Nm total axle torque at launch.
- weight of 900 kg (without driver)
GM HOLDEN DESIGNERS RACE INTO THE FUTURE WITH BATHURST ‘TIME ATTACK CONCEPT’ RACER
- Stunning virtual ‘Time Attack Concept’ racer conceived and executed entirely in-house by GM Holden Design and Engineering staff
- Highlights the advanced technology and capability of the GM Holden Design team
- Futuristic and cutting-edge Time Attack Concept racer created to honour the 50th anniversary of Holden’s first Bathurst win
Coinciding with the 50th anniversary of Holden’s first win at Bathurst in 1968, GM Holden’s Design Team has explored the technological potential of the future through the stunning virtual ‘Time Attack Concept’ racer – conceived and executed entirely in-house at GM Holden.
Unlike the conventional format of the current endurance race cars, the Holden Time Attack Concept racer is envisioned as a single-lap tearaway, pitted against the clock. This type of racing is commonly known as Time Attack in motorsport circles.
The Holden Time Attack Concept racer was developed entirely virtually, using sophisticated simulation technology and driven by the world-class expertise within GM Holden’s Melbourne Design Studio.
GM Holden’s Design Director, Richard Ferlazzo explains: “The technology we employ today has transformed the way we design cars. We have the ability to simulate a car’s appearance, technology and dynamics in convincing animations, which enables us to deliver better designs in a shorter time. A large part of our work is Advanced Design and we use this technology to develop concept designs for our parent company, General Motors. This concept is a digital advertisement for the advanced skills, capability and technology of the GM Holden team”.
Holden has a long and storied history of creating crowd-pleasing concept vehicles dating back to the iconic Holden Hurricane concept of 1969, with traditional motor shows the typical platform for debuting them to Australia. As times have changed, so has Holden’s approach to developing concept vehicles.
“The cessation of Motor Shows in Australia left a hole in our automotive culture in some ways and we lost a forum to showcase our passion and creativity to the Australian public with physical concept cars. However, with the realism and detail achievable through modern technology, I felt we could still deliver uniquely Holden concepts via virtual technology and digital media,” said Ferlazzo.
Ferlazzo set a challenge for his talented design team to explore a futuristic race car using the latest emerging technologies around the world and was impressed with the proposal from Lead Designer, Ewan Kingsbury.
“Ewan perfectly captured the essence of what we wanted to achieve; an expressive, futuristic design which also displays innovative engineering solutions. Concepts are always meant to push the boundaries but are even more impactful when they are feasible and this concept is plausible as an advanced racer of the future,” said Ferlazzo.
The concept was developed with technical input from GM Holden’s Engineering team and the final design was validated with a digitally-printed 3D model. The finishing touch is a stunningly realistic video, created by GM Holden’s in-house Design Visualisation team, of the Time Attack Concept racer lapping the iconic Mount Panorama circuit. The video will debut on Saturday October 6 during the telecast of the Great Race, and will then be available for everyone to see.
“Automotive Design and Engineering remains a core strength and competitive advantage for Holden and for Australia. The Time Attack Concept racer is an illustration of how we can utilise cutting-edge technology to develop transportation solutions for the future. You can see from the extremely detailed approach to incorporating the advanced technology in our Time Attack Concept racer that this is more than just a visual exercise. Holden’s recent announcement of the expansion of 150 new engineers to our Advanced Vehicle Development team means we have the talent, resources and technology to continue delivering to that charter,” concluded Ferlazzo.
900 kilograms (without driver)
Simulated Mount Panorama Lap Time: 1:29.30
0-100km/h: 1.25 sec
Top Speed: 480km/h
Maximum Lateral G-Force: 6.5G
Maximum Braking G-Force: 6G
250kW Axial Flux Permanent Magnet Electric Motor Drives x 4 (Inboard mounted)
Total output – 1000kW (1Megawatt) / 1340HP
3240Nm Total Motor Torque
5000RPM Maximum Revolutions
Enables full programmable Torque Vectoring Traction Control at each corner
3-Speed Planetary Automatic Shift Gearboxes x 4
Ratios 1st 2.97:1, 2nd 1.7:1, 3rd 1:1
First gear ratio enables 9620Nm total axle torque at launch
Gearbox casing integrated into Chassis structure
Reconfigurable Graphene Hybrid Power Pack
1MW power output, 90MJ Usable Charge Capacity
Fast Recharge: Fully recharged in 90 seconds (1000kW, 800V, 1250A)
Longitudinal Heat Exchangers x 2
Liquid-to-Gas Phase Change Cooling, low drag, full pass-through
Carbon/Carbon Hydraulic Discs x 4
Electrical Heating of pad and rotor in pits and on out-lap to conserve energy
Full Regenerative capability on all axles, can provide up to 2.0G braking force
Carbon Fibre composite with cellulose Honeycomb Core
Full Integrated safety cell and crash structure, utilising stressed powertrain components
Carbon Fibre Double Wishbone all-round, aerodynamically engineered profiles
Titanium CNC’d Uprights with bushed underbody mounts
Pushrod / bellcrank activated Hydraulic Active Suspension Actuators. Computer controlled programmable ride height adjustment, anti-dive, anti-squat, anti-roll
Electric Power Steering
Carbon-Fibre/Kevlar Composite panels with Polycarbonate Graphene Coated Upper
Full Carbon Fibre / Kevlar Composite quad-venturi underbody, with flexible co-moulded membranes at Body and Chassis junctions
Underbody is structurally mounted to Suspension uprights at all 4 corners, enabling full aero load to be applied directly to each wheel
Torsional twist capability enables underbody to maintain consistent relationship to ground even with extreme road camber change
310/700 R18 Slick tires all round
Carbon Fibre Composite Rims
Active Wheel Fairings support low drag or brake cooling positions
Wheel Fairing supported by a Kevlar/Elastane woven skin enabling consistent low drag performance whilst supporting full wheel steering and suspension movement
Low Frontal Area with all powertrain components on centre-line in Driver’s frontal area ‘shadow’
Full Active Downforce Generation via Ground Effects technology
Ultra-high Downforce levels achieved via electrically powered Cyclo-gyro fans
Rubber Skirts control air-bleed and enhance Ground Effect
4 Individually controllable Fans accelerate airflow through 4 venturi tunnels to enhance downforce at lower speeds
Fans enable programmable and constantly tuneable centre-of-pressure
Cyclo-gyro fans with actuated blades enabling variable thrust direction and force
Fans powered by 4 Switch Reluctance Motors (SRM), each up to 50kW, 50,000rpm, 92% efficient
Hydraulically actuated variable-position rear wing with air-braking capability
Lift-drag Ratio of underbody aero components in excess of 90:1
Active Matrix Laser Units with yellow ‘Endurance’ Tint
LED Matrix display – programmable pixels
Augmented Reality Helmet: 3D graphics projected onto helmet visor to enable graphics overlay in real-time. Essential technical information provided in addition to racing line and braking zone benchmarks.
Integrated full steering wheel inputs to control all mechanical and aerodynamic systems via presets.
Six Point safety harness.
Telemetry and Camera mast to enable constant uplink and data transmission and in-car filming