The Four Ingredients of the Perfect Racing Sim
Ultra Low Latency
Reaction time is everything when it comes to overtaking opponents, or taking corrective action to prevent loss of tire grip. Simulator's ultra low latency not only keeps the driver a step ahead, but naturally also removes barriers between the simulated world and the driver. There is no latency in the real world - and in the perfect simulation neither. We, humans, are naturally built to perform optimally in such world.
Direct Drive
Force Feedback
By coupling a wheel directly to an extremely fast responding direct drive torque motor, Driver will open a straight portal into the physics of the simulated race car and track. Such ideal torque transducer adds nothing of it's own to be felt - it's just a pure connection to the road behind the wheel. Direct drive is the only known method to achieve sub-millisecond latency and real-life race car dynamic range - the keys to true transparency.
Superior
Dynamic Range
Sensing the tiniest changes in the tire grip same time with high steering force of sharp corner will transmit the forces of every part of race car to the driver is the way it works in real-world. High dynamic range of force feedback equals to maximizing the flow of physical information from the simulator the the driver. It happens to be the peak force moment when there is the greatest need to precisely sense the emerging loss of grip. Being able to sense that enables the driver to utilize 100% of the race car potential.
Natural Signal
Processing
By passing the simulator's sometimes coarse digitally sampled force commands through force reconstruction engine, driver will be able to feel the force feedback it was intended by the simulator's physics engine. Moreover, the real nature modelling based inertia, damping and friction effects calculated right inside the simulator hardware will make the driver feel like they're connected to the real world - not to simulator.
Nothing Left to Speculation
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Full metal construction
The body of Simucube 2 has been built from precision machined solid metal parts. It’s pretty hard to find a plastic part in it – pretty much the only non-metallic one is the “radiofrequency window” for Wireless Wheel Receiver.
Hiperface angle sensor
Simucube 2 Ultimate has undouptedly the most accurate angle sensors in all force feedback wheels ever. The sensor has Hiperface interface with resolution of 16 Million counts per revolution. The quality of the angle sensor information has paramount importance when calculating natural physics effects and filters. Any imperfection of the sensor signal would feel like a distortion in the reality. All Simucube 2’s signal processing units have been optimized to take full advantage of the unmatched sensor precision. The output of the Hiperface sensor is sampled at constant 20 kHz sample rate.
Direct Drive brushless torque motor
Only the very best is good enough for Ultimate drivers. Simucube developer team compared over 40 motors, hand-tested over ten of them, then picked the best the best imaginable motor, and finally customized it to suit absolutely flawlessly in professional racing simulation. This is how the Ultimate motor was born. SC2 Ultimate’s motor is designed to operate up to whopping 70 Nm peak torque, so running it up to 32 Nm dynamic range is a breeze. Ultimate motors are also individually calibrated in production to iron out any measurable torque error and ripple.
Isolated surge protected USB
No Simucube driver shall ever become the victim of interference prone USB connection. Thanks to a galvanic isolation layer between the USB and power electronics. This also protects the PC from current spikes. In addition, all connectors found on the back of SC2 are ESD protected exceeding the industrial requirements.
Dual CPU architecture
To unleash full potential of the glorious motor and to process signals at maximum precision, Simucube 2 has been given a dedicated 216 MHz real-time processor in addition to an dedicated 144 MHz PC USB interface CPU. Unique dual CPU architecture ensures zero impact on ultra low latency performance even when all processing and simulator actions are running simultaneously. The new 216 MHz processor features superscalar ARM architecture, making it effectively four times faster than the 72 MHz processor of IONI drive in Simucube 1.
Passive cooling
Thanks to high efficiency direct drive operation optimized motors and clever electronics heat guiding, there is no dust collecting nor noisy fans in Simucube 2. High efficiency motor puts out less heat and consumes less power.
Oversized rugged power components
All Simucube 2’s electronics have been designed in Finland by Granite Devices – also known from their reliable industrial motor drives. Simucube has been proudly built with the same uncompromising industrial quality principles. This means prioritizing on ruggedness and longevity over cost of the components. Simucube 2 power MOSFETs are rated over 2X their actual need to make them virtually immortal.
Remote power switch & Stop button
Because high torque may pose a hazard if the simulator software goes nuts, or if driver becomes careless with the high torque wheel, Simucube 2 Ultimate comes with externally mountable premium full-metal Torque off button with remote power switch.
Simucube Quick Release™ (SQR)
Precision machined full-metal Simucube Quick Release guarantees zero backlash and rock solid operation even under the extreme torques of direct drive wheel base. Guided rail design ensures perfect lock-in every time, and spring preloaded pin mechanism will ensure non-degrading tight coupling over thousands of swap cycles. Just like rest of Simucube, SQR has been built to be virtually immortal. The only theoretically wearing part, spring loaded pin mechanism, is made out of standard stock parts making it user serviceable.
Simucube Wireless Wheel™ (SWW)
Built-in wireless wheel receiver in Simucube 2 automatically connects to your Simucube Wireless Wheel just by briefly pressing both paddle shifters simultaneously. The wireless wheel transmission protocol has been specially engineered to provide consistent and unbreakable millisecond range response times, as well as extremely long battery life of over 5 years. Swapping wheel will also take effect immediately without the need of re-assigning controls in the simulator.
Natural Signal Processing
Torque reconstruction processing
By passing the simulator's sometimes coarse digitally sampled force commands through Simucube’s world famous force reconstruction engine, driver will be able to feel the force feedback like it was intended by the simulator's physics engine.
Adjustable torque slew rate limit
Limits the rate of change in motor torque measured in Newtonmeters per millisecod. May be used to adapt sharpness the fast torque spikes to driver’s preference. Maximum settable slew rate depends of the DD motor (see the comparison table for details).
Natural damping, inertia and friction filters
In addition to simulator controlled damping, inertia and friction effects, Simucube 2 implements real-time physics modeling based user controllable versions of them. Thanks to high precision angle sensor in all Simucube 2 modes, these feel practically indistinguishable from real physical phenomena.
Simucube 2 Ultimate adds more detailed tuning parameters to many of the listed signal processing methods and filters. Adjustable parameters include defining the frequency bandwidth of the signal processing allowing drivers to fine tune ultimate optimum setting for their rig and simulator. Ultimate drivers also have access to early access features and filters from SC developer team