Electric Scooter Controller for OEMs EV Platforms

An electric scooter controller, also called a motor controller or inverter, is the core electronic unit that regulates current flow from the battery to the motor. It controls torque, speed, regenerative braking, and protection functions in real time.

For OEMs building BLDC (Brushless DC) and PMSM (Permanent Magnet Synchronous Motor) platforms, the controller must be co-optimized with the motor, battery management system, and vehicle control unit to deliver target performance, efficiency, and safety compliance.

IRP Systems develops high-performance electric motor controllers designed according to ISO 26262 processes, supporting scalable integration across electric vehicle platforms.

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Selecting the right electric scooter controller for a vehicle platform requires matching several interdependent parameters. Here are the key specification axes:

 

Operating Voltage Range

Urban e-scooter platforms typically operate between 36V and 84V. Low-voltage systems (24V–48V) suit entry-level and delivery scooters; higher voltage platforms (60V–84V) enable greater motor output and better sustained-speed efficiency. IRP Systems’ Dynamic series covers different voltage ranges up to 110V.

Peak Power and Continuous Current

Peak power determines acceleration; continuous power determines sustained performance and thermal tolerance. A well-designed controller maintains peak output without thermal throttling. The IRP Dynamic platform supports 1.5 kW to 25 kW peak output, spanning compact urban scooters through high-performance platforms.

Motor Type: BLDC, Sine Wave, and Open Winding

Square-wave BLDC controllers are cost-effective for lower-power applications but may result in torque ripple and audible noise. Sine wave controllers provide smoother operation and improved efficiency.

IRP Systems implements an Open Winding topology, enabling more flexible control of the motor and improved performance across different operating conditions.

Sealing and Environmental Protection

Real-world vehicle deployment involves rain, dust, and temperature extremes. A minimum of IP65 is required for outdoor use; IP67  the rating of the IRP Dynamic series  provides enhanced protection for all-weather operation.

Safety Standard Compliance

ISO 26262 defines automotive functional safety requirements for electronic systems in road vehicles. It is increasingly required for regulated markets and premium OEM platforms.

IRP Systems develops its controllers according to ISO 26262 processes.

 

The IRP Dynamic platform is powered by TrueDRIVE — a unified software platform that enables:

• Real-time control and system communication
• Simplified integration across vehicle architectures
• Faster development and validation cycles

The TrueDRIVE AI-Suite extends this capability by providing data-driven insights, simulation support, and system optimization tools.

OEM engineers can configure torque response, regenerative braking behaviour, drive modes, and system parameters without requiring hardware redesign.

Advanced Control Functions

The platform supports a wide range of OEM-level functionalities, including:

• Driving Profiles and configurable drive modes
• 4-Quadrant Operation for full torque control
• Reverse Mode and Cruise Control
• Regenerative Braking
• Virtual VCU integration
• Anti-theft functions
• Limp Mode for safe operation under fault conditions

These capabilities enable flexible vehicle tuning and consistent performance across platforms.

 

Electric motor controllers vary in architecture and control strategy depending on performance requirements and application.

• Brushed DC controllers are the simplest option, typically used in very low-power applications. They require mechanical maintenance and are not suitable for modern OEM vehicle platforms.
• Square-wave BLDC controllers are widely used in cost-sensitive applications. While reliable and efficient, they can introduce torque ripple and reduced smoothness.
• Sine wave BLDC controllers deliver quieter, smoother operation at greater controller complexity and cost.
• Software-defined controllers based on Field-Oriented Control (FOC) represent the current state of the art. FOC enables precise torque control, optimized efficiency across the full operating range, and compatibility with multiple motor types.

 

IRP Systems implements advanced FOC-based control within a software-defined platform, enabling OEMs to adapt system performance across different vehicle platforms without hardware redesign.

 

How to Select an Electric Scooter Controller

For OEM vehicle development, controller selection goes beyond basic electrical compatibility. Key considerations include:

• Compatibility with target motor types and vehicle architecture
• Ability to configure performance, drive modes, and system behaviour
• Support for functional safety requirements (ISO 26262)
• Integration with BMS, VCU, and vehicle communication systems
• Scalability across multiple vehicle platforms

IRP Systems addresses these requirements through a modular, software-defined controller platform, enabling flexible integration and faster development cycles for OEM programs.

Trust and Technical Credentials

• Designed according to ISO 26262 processes
• IP67 environmental protection
• Modular and scalable platform architecture
• Software-defined control with TrueDRIVE
• Support for multiple vehicle segments
• Full in-house development: hardware, firmware, and system validation

 

What voltage controller do I need for my electric scooter?

The controller voltage must match your battery pack voltage exactly. Common voltages in India are 48V, 60V, and 72V. Using a mismatched controller can damage the motor or battery and is a safety risk. Check your battery’s nominal voltage label and select a controller rated for that voltage range.

What is the difference between a brushless and a sine wave controller?

All sine wave controllers are brushless, but not all brushless controllers use sine wave commutation. Square-wave brushless controllers are simpler and cheaper; sine wave controllers deliver quieter, smoother motor operation and better energy efficiency. For OEM applications, Field-Oriented Control (FOC) sine wave controllers are the current performance benchmark.

What is IP67 and why does it matter for a scooter controller?

IP67 means the controller is fully dust-tight and protected against temporary immersion in water to one metre depth. This is the appropriate protection level for controllers in exposed positions on electric scooters used in rain and variable weather.

What is ISO 26262 and is it required for electric scooter controllers?

ISO 26262 is the international standard for functional safety of automotive electrical and electronic systems. It is mandatory for vehicles exported to European markets and is increasingly required by premium Indian OEMs. Controllers developed to ISO 26262 have undergone systematic hazard analysis, failure mode testing, and documented design processes.

Can IRP Systems’ controllers work across multiple vehicle platforms?

Yes. The IRP Dynamic series uses a modular, software-defined architecture. The same controller can be adapted across all vehicle platforms from 2-wheelers, 3-wheelers and 4-wheelers. 

What is regenerative braking in an electric scooter controller?

Regenerative braking recovers kinetic energy during deceleration and returns it to the battery. The controller temporarily reverses the motor’s operating mode, functioning as a generator. IRP’s regenerative braking algorithm is tuned in software to maximize recovered energy on urban duty cycles without compromising braking feel.

IRP Systems works with OEMs and electric vehicle manufacturers. If you are developing an electric scooter or light EV platform, our engineering team can support you from specification to serial production integration.

Get in touch with IRP Systems →