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Motor Control Software & Hardware
Development - BLDC, PMSM, AC Induction Motors

During our journey of more than a decade in the Automotive Industry, we have developed a robust ecosystem for delivering quality Motor Control Software solutions.

These include Brushless DC Motor Controller and PMSM Motor Control Solutions

This ecosystem consists of experienced Embedded Software and Hardware Engineers, Automotive Domain Experts and Industry Partners.

For more than 12 years, our focus area has always been Product Engineering Services (Embedded Software and Hardware design services). This has facilitated our team to develop in-depth expertise in Model Based Development and in delivering Functional Safety (ISO 26262) and AUTOSAR complaint solutions.

We have partnered with customers to develop electronic based motor control development for Electronic Power Steering (EPS), Seating Control, Smart Actuator for Turbo Chargers and other applications.

Expertise in types of Motors

A Handbook on Motor Control System

Learn about Reference Design Solution of our
Motor Controller, its salient features and use cases

A Handbook on Motor Control System

Learn about Reference Design Solution of our <br>Motor Controller, its salient features and use cases

Our Motor control software and hardware development expertise

MCAL / low-level Driver Development

  • Low level drivers such as ADC,MCU,SPI,I2C,PWM,ICU,and NVM
  • CAN and LIN Drivers

BSW Layer Development

●  Off Board Diagnostics (UDS,J1939 etc.)

●  Fault Code Memory

●  Safety Mechanisms

●  Hardware Abstraction Layer

Application Software Development

●  AUTOSAR based application software development

●  MATLAB based application software development

● Non-AUTOSAR based application software development

AUTOSAR and Vehicle Diagnostics Support

●  Ready-to-deploy & re-usable software stacks and Bootloader solutions for in-vehicle communication and diagnostics (CAN, LIN, UDS, KWP2000, Serial, BT)

●  AUTOSAR and non-AUTOSAR compliant Base Software Development

●  AUTOSAR compliant application software

Functional Safety

  • Safety Lifecycle in parallel with SDLC
  • Support for ASIL D certification
  • Safety Activity planning and execution
  • ASIL compliant documentation, verification and validation

Application Software & Motor Control Algorithm Development

Expertise in following control algorithm development
  • Speed Regulation
  • Pulse Width Modulator
  • Current Regulation
  • Field-oriented Control (FOC)
  • Proportional Integral Derivative Controller
  • Direction control
  • Soft Start/Stop
  • Software Start/Stop

AUTOSAR and Non-AUTOSAR compliant Base Software (BSW) development support

Development and Configuration

Hardware Design & Consulting Services

Consulting services for evaluation and selection of microcontroller and other hardware components like:
  • Microcontroller
  • Torque & Angle Sensors
  • HALL Effect sensors
  • Gate Driver IC
  • Temperature Sensors
  • Pre-driver Components
  • H-Bridge (MOSFETs)

Automotive Grade Hardware Development, Support for EM and Thermal Analysis

Motor Control Development Success Stories

Video Explaining Motors as the Power and Motion Delivery System in a Vehicle

AUTOSAR, Partial AUTOSAR and non-AUTOSAR Software Architectures

Depending on the project specification, we can help you follow any of three approaches in automotive motor control software architecture:

Steps Involved Motor Control Hardware Design Process

Tools and Technologies Expertise

FAQs Regarding Motor Control System Development

Does your Motor Control Software Reference design for Automotive applications have an integrated over-current protection module?
Ans. Yes, we have deployed current protection modules in our previous designs for motor control system. The first method is the low side current sensing also called the shunt method. Alternatively, we have also used resettable fuses in the system entry point in a way that it triggers during the over-current scenarios.
Does your Product Engineering Services team have necessary expertise and experience to develop an AUTOSAR compliant Motor Control ECU?

Ans. Yes, our team has the necessary skill-sets, automotive domain expertise and project experience for delivering an AUTOSAR complaint < href="https://embitel.com/motor-control-solution-for-electric-vehicle-drivetrain" target="_blank" style="color: #FF8702">Motor Control Solution.

We have integrated robust and production grade versions of third party stacks like BSW and RTE software for AUTOSAR projects in the past.

Our team will collaborate with you to develop the Automotive Application as per AUTOSAR compliance. We will also support in development of MCAL and CDD modules

We are looking out for an Automotive Functional Safety partner in order to achieve ASIL compliance for our Motor Control software solution. Will Embitel Technologies be able to support us?
Ans.Yes, We have a team of ISO26262 functional safety experts that will work with the motor control development team to ensure ASIL compliance.

We provide support for every aspect of the Functional Safety Lifecycle and also perform FMEA, HARA, and hardware FMEDA for motor control systems.

We have worked with leading Automotive Suppliers and OEMs’ for ASIL compliance of a motor control ECUs’ in the past.
How does motor control software contribute to energy efficiency in industrial processes?
Ans: Motor control software plays a crucial role in optimizing energy consumption by regulating motor speed and torque based on the specific operational requirements. This leads to reduced energy wastage, lower operational costs, and a greener environmental footprint.
Will Embitel provide support for integration of the Motor Control Software and hardware with the production environment?
Ans. Yes, we do provide all the required support for integration of motor control system at production level. If you require, our experts will visit on-site for a seamless integration.
What are the key considerations when selecting a motor control solution for a specific industrial application?
Ans. When choosing a motor control solution, factors such as compatibility with existing systems, scalability, ease of integration, and the ability to customize parameters are crucial. Additionally, evaluating the software’s reputation, support, and update capabilities is essential for long-term reliability.
Do you have experience in hardware and software design of a motor control solution, for an Electric Vehicle (EV)?

Ans. Our team has been working on multiple projects, where we are developing software solutions for global production programs of Electric Vehicles

For such engagements, we have been partnering with customers for design of Motor Control Software and Hardware modules for Electric Vehicle programs in Asia, US and Europe.

What is your expertise in microcontroller platforms w.r.t automotive motor control development?
Ans. We have successfully delivered motor control solution designs based on various microcontroller families including NXP/Freescale, Renesas, Microchip, Fujitsu and TI. We also have BSPs and communication stacks readily available for these platforms.

The choice of MCU to be used rests with the customers, however, we also provide consultation to help you choose the most suitable platform.
What is motor control software, and how does it differ from traditional control methods?
Ans. Motor control software is a specialized program designed to regulate and manage the operation of electric motors. Unlike traditional control methods, which may involve manual adjustments, motor control software automates and optimizes motor performance for enhanced efficiency and precision.
What diagnostic features can your reference design support?

Ans. A few of the diagnostics features that we have implemented in our motor control system projects include:


  • Short protection like short to GND, Short to VBAT and Open Circuit
  • Based on any diagnostic errors, Drive circuit is completely OFF or Limited Drive controlled by Software.

Based upon the specific requirements of the project, we also add more diagnostics features.

Can motor control software be integrated with different types of motors and industrial equipment?
Ans. Yes, motor control software is versatile and can be tailored to work with various types of motors, including AC and DC motors, as well as different industrial equipment. Its flexibility allows for seamless integration across a wide range of applications.
Can you help us develop a sensor-less BLDC motor control system?
Ans: Yes. We have developed sensor-less BLDC motor systems for a few of our customers. From development to integration, we have provided end to end support in sensor less motor control development.
Are there any safety features incorporated into motor control software to prevent equipment damage?
Ans: Yes, modern motor control software often includes safety features such as overcurrent protection, fault detection, and emergency shutdown protocols. These mechanisms help prevent equipment damage, ensuring smooth and secure operation.
Can motor control software be remotely monitored and controlled for decentralized applications?
Ans: Absolutely. Many motor control software solutions support remote monitoring and control, enabling users to access and manage motor operations from a centralized location. This feature is particularly useful for decentralized industrial setups and facilitates efficient maintenance and troubleshooting.
What are the objectives of Motor Control?
Ans: The primary objectives of motor control include regulating the speed, torque, and direction of a motor to achieve desired performance, energy efficiency, and operational reliability. Motor control software plays a crucial role in achieving these objectives by implementing algorithms for precise control.
Explain Control of EV Motors in a basic way.
Ans: Technical Perspective: Electric Vehicle (EV) motors are controlled using sophisticated motor control software that employs algorithms to manage power electronics, inverters, and feedback systems. This ensures efficient conversion of electrical energy to mechanical motion. Motor control software is essential for precise control of EV motors, optimizing performance and energy consumption.
What is a DC Motor Controller?
Ans: A DC motor controller is an electronic device that governs the speed and direction of a DC motor. It utilizes pulse-width modulation (PWM) techniques to regulate the voltage supplied to the motor.
Can you name some methods of Control in EV Motor?
Ans: EV motor control involves various methods, including Field-Oriented Control (FOC) and Direct Torque Control (DTC). FOC aligns the stator magnetic field with rotor flux for precise control, while DTC directly controls torque and flux. Motor control software implements these methods, interpreting sensor data and executing control algorithms for optimal EV motor performance.
What are the different methods of BLDC Motor Control?
Ans: Brushless DC (BLDC) motor control methods include sensor-based control using Hall effect sensors for rotor position feedback and sensor less control, relying on back electromotive force (EMF) estimation algorithms.

Knowledge bytes

How do you think the new power steering system work with minimal force applied by the driver? How does a seat go forward, backward, up and down with a push of a button? The answer of both these question is the automotive motor control system.

In the simplest terms, a motor control application is a set of hardware and software components that drive a motor or multiple motors. These motors, in turn, perform actions such as opening-closing of windows, power steering movement and more.

Depending on the type of motors to drive, these motor control systems can be a Brushless DC Motor Controller or PMSM Motor Control Solutions.

Types of motor control system

  • Open Loop Motor: The motor control applications in which the quality of the output does not impact the input to the motor control process is called an open loop motor control system. It implies that they are open-ended system that do not have any feedback mechanism.
  • Closed Loop Motor: A closed loop motor works on feedback mechanism and hence, it is also called feedback control system. An error signal is generated by the Gate Driver IC in case the actual output is different than the desired output. This error signal will go to the motor controller which will take necessary actions. In a way, it is a self-correcting motor control applications.
Microcontroller: This is where the motor is controlled from. Microcontroller will have the pulse-width modulation (PWM) control and other motor drive logic.

Gate Driver Unit: This Integrated Circuit acts a power amplifier. It will accept a low-power input from the motor controller IC and gives high-power input to a switch that transfers it to the motor.

MOSFETs: These are switches that will again amplify the signal received from the gate drivers. This signal will be passed to the stator of the motor causing an Electro Magnetic Flux, EMF.

H-Bridge: H-bridge is again a circuit that helps a DC motor to run in both clockwise and anti-clockwise. It can apply the voltage to a load in any direction and this how it controls the direction of the motor.

Motor: Motors can be DC, AC, Brushless, brushed etc. They are used depending on the use cases and the application.

So, in order to run the motor, a set of data (PWM signals) flows from microcontroller to the motor via the gate drivers and MOSFETs.

The EV motor finds multiple uses in the entire automotive industry –

  • Electric Cars – The Mainstay in EVs: In the world of electric cars, motor controllers are like the conductors of an orchestra. They dictate the tempo, ensuring your EV accelerates smoothly, cruises efficiently, and regenerates energy during braking.
  • Electric Bicycles (E-bikes) – Boosting Pedal Power: E-bikes are the rebels of the bicycle world, with motor controllers turning ordinary bikes into electrifying rides. They provide that extra oomph when you need it most, making uphill climbs feel like a gentle breeze.
  • Electric Scooters – Urban Mobility: Picture zipping through city streets silently and efficiently. That’s the magic of electric scooters, where motor controllers ensure you have a comfortable and responsive ride, perfect for navigating congested urban areas.
  • Electric Boats and Personal Watercraft – Sailing into the Future: On the water, motor controllers are the captains of electric boats and personal watercraft. They provide the thrust and control needed for silent and eco-friendly boating, offering serene journeys across lakes and oceans.
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