Hyundai Ioniq 5 N Track Test Finds Simulated Shifts Add Feedback

Electric motors can deliver immediate acceleration, yet that speed can remove some of the sound, rhythm and anticipation that performance-car enthusiasts associate with an involving drive. A racetrack comparison at Chuckwalla Raceway found that the Hyundai Ioniq 5 N’s simulated shifts and synthetic engine sound added useful feedback, illustrating why automakers are engineering sensations back into cars whose propulsion systems do not inherently produce them.

The comparison placed the Ioniq 5 N alongside a Dodge electric performance sedan. Both vehicles had more than 640 horsepower, all-wheel drive and drift modes, so neither lacked measurable performance. The more revealing contrast concerned how each car communicated its behavior to the driver. In the Hyundai, enabling its performance settings, synthetic sound and simulated shifting materially changed the experience compared with driving it as a conventional single-speed electric vehicle.

Why acceleration is only part of the experience

A combustion-powered performance car generates several overlapping signals. Engine pitch rises with speed and load, a gear change interrupts acceleration, and the drivetrain responds differently depending on engine speed and the selected ratio. Drivers can use those signals to judge when to shift, how quickly they are approaching a corner and whether the vehicle is responding as expected.

Most electric cars eliminate much of that sequence. Their motors can provide strong torque without passing through multiple conventional gear ratios, producing smooth and nearly uninterrupted acceleration. That is effective for speed, but it can reduce the number of sensory reference points available to the driver. The issue is not that every EV feels unengaging, or that every enthusiast wants engine imitation. It is that acceleration figures alone do not describe the complete human-machine interface.

The Ioniq 5 N addresses that gap by coordinating several outputs. Its system produces a synthetic exhaust-like note and creates physically perceptible shift events. Steering feedback and throttle behavior also help the driver interpret the car’s response. On a track, changing sound can function as an additional timing and speed cue, while a repeatable shift rhythm can divide acceleration into recognizable stages.

Software creates a sensation the hardware no longer requires

A simulated shift does not require the motor to move between mechanical gear ratios. Instead, control software can briefly alter motor torque to reproduce the interruption and re-engagement associated with a transmission changing gears. The feature deliberately gives up some of an electric motor’s seamless response in exchange for feedback and involvement.

Toyota has explored a more elaborate version in an electric UX300e test vehicle. Its proof of concept manual simulator used an electronic shifter, a dummy clutch pedal and synthetic engine sound. The software could imitate a stall, make the vehicle lurch after a poor shift and reduce available response when the simulated engine was placed in an unsuitable gear. It could also be switched off, returning the car to smoother and more responsive single-speed electric operation.

That on-demand design is important. Artificial shifting introduces interruptions that an EV does not need for propulsion, so making it selectable lets drivers choose between maximum smoothness and a more interactive control pattern. It also avoids forcing one definition of engagement on every trip or every driver.

Toyota has separately filed a patent application describing simulated sequential shifts made through temporary torque cuts and, in some cases, a brief torque overshoot when power returns. The application indicates that different modes could vary the intensity of the shift sensation, although Lexus has not confirmed that the patented system will reach production.

Not every artificial EV sound serves the same purpose

Cabin sound intended to engage the driver is distinct from the external warning sounds electric and hybrid vehicles produce at low speeds. Those pedestrian-alert systems compensate for the lack of engine noise and help people outside the vehicle detect its movement. Performance sound is instead part of the interior feedback strategy, and its success depends on how convincingly it corresponds with accelerator position, speed and torque delivery.

Calibration therefore matters more than volume or novelty. Research into active in-vehicle sound generation has examined speaker response, sound amplitude, frequency distribution and subjective evaluation under acceleration and steady-speed conditions. A sound that does not track the vehicle’s behavior could become distracting; one synchronized with driver inputs can provide an intuitive reference without changing the underlying propulsion hardware.

The Ioniq 5 N demonstrates the central tradeoff: simulated shifts intentionally interrupt the effortless acceleration that makes an EV technically effective, but they can give the driver more information and a stronger sense of participation. Toyota’s switchable prototype takes that logic one step further the same electric car can be quicker and smoother with the simulation disabled, then more demanding and interactive when the artificial gearbox is turned on.

By Thomas Caldwell — AMI’s senior editor for mechanical and mobility engineering, covering vehicle electronics, systems integration, electrification, chassis systems, propulsion, and safety policy.