PUMBAA Electric Vehicle Motor Controller Unit (MCU) PMC20A

(1) Energy conversion function. Realize braking energy recovery to improve vehicle range;

(2) Torque execution function. The controller sends negative torque values to the motor controller to reduce energy waste;

(3) Active discharge function. Large-capacity capacitor self-discharge for a long time will have high-voltage safety risks;

(4) Safety protection function. Motor system with fault detection, fault reminding, fault handling and other safety protection functions;

(5) High-speed CAN network communication function. Effective realization of the electric motor control unit and the whole vehicle function strategy, control the safe and reliable operation of the motor system to ensure the safe operation of the vehicle.

Microcontroller (MCU) plays a key role in electric vehicle motor control. They are the core components of the motor control unit, responsible for executing complex algorithms, monitoring sensor data, adjusting motor parameters, and communicating with other vehicle systems.

The following is the role of MCU in electric vehicle motor control:

1.High Performance Computing: Electric Vehicle Motor Control Needs real-time computing and control. MCU provides enough computing power to implement complex control algorithms to ensure the efficient operation of the motor

2. Sensor Interface: MCU has multiple interfaces for connecting various sensors, such as motor position sensors, temperature sensors and voltage sensors. These sensors provide critical data for monitoring motor status and environmental conditions.

3.Communication interface: electric vehicle subsystems need to communicate with each other in order to achieve cooperative work. MCU provides a variety of communication interfaces, including CAN bus, Ethernet and UART, for data exchange with other ecus.

4.Functional safety: to ensure the safety of electric vehicles, MCU usually integrates functional safety features, in line with ISO 26262 and other standards. These features help prevent potential failures and dangerous situations.

5.Power management: MCU also manages the power supply of the motor control unit to ensure its stable operation. It can monitor battery voltage, prevent overcharging and overcharging, and implement energy management strategies to improve energy efficiency.

With the growing electric vehicle market, MCU manufacturers continue to provide more advanced solutions to meet new challenges and needs. Here are some recent trends and developments:

1.Scalability: automakers need to offer different performance and cost goals between low-end and high-end vehicles. As a result, MCU manufacturers are paying more attention to providing scalability to suit different types of electric vehicles.

2.High Performance and efficiency: with the development of electric vehicles, the performance and efficiency of MCU is also increasing. MCU needs to support more efficient motor control algorithms to improve range and power performance.

3.Integration and versatility: to reduce the size and weight of the system, MCU manufacturers are rolling out solutions that integrate multiple functions, such as electronic axles and X-IN-1(electronic axles + DC/DC + other features) . This helps simplify the electrical architecture of electric cars.

4.Sic and GaN power switches: with the development of SIC (silicon carbide) and Gan (gallium nitride) power switching technologies, the motor control unit also needs to be upgraded to accommodate these new technologies. This will help increase power efficiency and reduce motor size and weight

5.Sic and GaN power switches: with the development of SIC (silicon carbide) and Gan (gallium nitride) power switching technologies, the motor control unit also needs to be upgraded to accommodate these new technologies. This will help increase power efficiency and reduce motor size and weight.

6.Functional security and OTA update: functional security and remote OTA (Over-The-Air) update have become important concerns in the electric vehicle industry. MCU manufacturers are actively providing solutions that support these functions to ensure that vehicle safety and performance can be updated and improved at any time.

Motor control of electric vehicle (EV) is the key factor to realize the performance, efficiency and reliability of EV. Microcontroller (MCU) plays a key role in electric vehicle motor control by providing high performance computing, sensor interface, communication interface, functional security and power management, support the efficient operation of motor.

With the growth of the electric vehicle market, MCU manufacturers are making continuous efforts to provide more advanced solutions to meet the evolving needs and challenges. Extensibility, high performance and efficiency, integration and versatility, inductive position sensing, Sic and GaN power switches, functional safety and OTA update are the latest trends in the field of electric vehicle motor control. These developments are expected to propel the electric vehicle industry towards a more sustainable and efficient future.