Originally reported by Chris Perkins at GM News (March 11, 2026). Read the full story →
Before brake-by-wire was an industry standard, GM’s EV1 had it figured out. As the automaker celebrates the 30th anniversary of its first modern electric vehicle, it is also highlighting how the EV1’s regenerative braking system served as a direct precursor to the blended braking architectures used across today’s EV market. For brake industry professionals, the story is a case study in how a low-volume experimental program can reshape supplier relationships and product expectations for decades. GM confirmed today that it is supporting a private restoration of a surviving EV1, bringing renewed attention to the engineering that started it all.
A Braking System Ahead of Its Time
The GM EV1, which first reached customers through lease agreements in 1997, carried a braking architecture that was remarkably advanced for its era. Engineers developed a system that converted the driver’s brake pedal input into an electronic signal. That signal then coordinated a blend of regenerative braking from the electric motor and conventional hydraulic friction braking.
In practice, this meant the EV1’s brake pedal was fully decoupled from the mechanical braking hardware. The car’s electronic control unit determined how much stopping force came from energy recapture versus traditional pad-on-rotor friction, optimizing for efficiency at every stop. This was a true brake-by-wire arrangement at a time when most production vehicles still relied entirely on mechanical linkages.
Consequently, the system demanded close collaboration between GM’s powertrain engineers and its brake suppliers. Friction materials had to perform reliably in a secondary role, activating primarily during hard stops or low-speed maneuvers where regenerative braking loses effectiveness.
From EV1 to One-Pedal Driving
The blended braking concept that debuted on the EV1 has evolved directly into the systems found in GM’s current electric lineup. Today’s GM EVs feature One-Pedal Driving, which maximizes regenerative braking so aggressively that many drivers rarely touch the friction brake pedal. They also offer paddle-actuated Regen-On-Demand, allowing drivers to modulate energy recapture manually.
These modern systems still face the same fundamental engineering challenge the EV1 introduced: balancing regenerative and friction braking seamlessly. However, three decades of refinement have made the calibration far more sophisticated. Modern brake control units process inputs from wheel speed sensors, battery state-of-charge data, and stability control systems simultaneously to manage the blend.
For brake component suppliers, this evolution has significant implications. Reduced friction brake engagement means pads and rotors last dramatically longer on EVs — a well-documented shift that continues to reshape aftermarket demand forecasts. At the same time, the safety-critical nature of the friction system has not diminished. When regenerative braking reaches its limits due to a full battery, extreme cold, or emergency stops, conventional brakes must still deliver full performance instantly.
The Supplier Relationship Dynamic
The EV1 program also established an early model for the OEM-supplier dynamic that defines modern EV brake development. EV1 engineers worked directly with a tire supplier to create purpose-built low-rolling-resistance tires for the car. Similarly, the braking system required friction materials calibrated specifically for intermittent, secondary use patterns that were unfamiliar territory in the late 1990s.
Today, that collaborative model has scaled dramatically. Brake suppliers across the industry now develop products specifically for EV duty cycles, including compounds that resist corrosion from infrequent use and rotors designed to maintain surface condition despite long periods between high-friction events. In addition, the growing adoption of by-wire braking has opened new product categories around electronic brake actuators, sensors, and control software.
Why This Matters Now
GM’s decision to publicly celebrate the EV1’s engineering legacy — including active support of a private restoration project — arrives as brake-by-wire technology approaches broader adoption beyond EVs. Several automakers are exploring full by-wire braking for conventional vehicles as well, driven by the weight savings and packaging flexibility it offers.
For brake professionals tracking these trends, the EV1 remains a useful reference point. It demonstrated 30 years ago that electronic brake control could work reliably in a production vehicle. The technologies it pioneered are now not just standard in EVs but increasingly influential in the broader vehicle braking landscape.
How is the shift toward reduced friction brake engagement on EVs affecting your product development or distribution strategy?
Bottom Line
The GM EV1’s blended regenerative and friction braking system was a proof of concept that became an industry standard. As GM marks the car’s 30th anniversary, the technology thread connecting the EV1 to today’s One-Pedal Driving and Regen-On-Demand systems underscores how a small experimental program reshaped expectations for brake suppliers, friction material developers, and system integrators across the entire EV segment.
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