Electric two-wheelers, as economical and environmentally friendly short-distance transportation tools, have penetrated personal commuting, food delivery, and shared transportation sectors. Under the implementation of new national standards and the wave of intelligence, their core control systems must balance efficient power output, safety protection, and range optimization. In traditional solutions, the controller, as the “brain of the vehicle,” needs to process multiple tasks in real-time, such as motor speed regulation, battery management, and user interaction, posing threefold challenges to the main control chip: high real-time performance (e.g., PWM pulse width precision must reach 6.9ns level), complex algorithm support (FOC vector control, battery SOC estimation), and extreme environmental adaptability (-40℃ to 85℃ wide temperature range, 50G vibration resistance).MCUs (Microcontrollers) stand out due to their highly integrated architecture—integrating processor cores, storage units, analog peripherals, and hardware acceleration engines into a single chip, reducing board area by 30% compared to discrete solutions, while hardware-level task scheduling compresses instruction response time to the microsecond level. For example, the National Technology N32 series MCU achieves synchronous acquisition of motor phase current and commutation control through its built-in 4-channel independent ADC (5Msps sampling rate), improving energy conversion efficiency to over 92%.
The M4 core MCU serves as the computational hub for electric two-wheelers, balancing performance and energy efficiency.
Its core advantages stem from three technological leaps:
• Instruction Set Innovation：The Arm Cortex-M4 supports DSP instructions and hardware floating-point operations (FPU), with a maximum frequency of 120MHz to 200MHz, improving algorithm processing efficiency by three times compared to M0/M3. For instance, in FOC control, the M4 can complete Clarke/Park transformations and SVPWM modulation within 20μs, ensuring motor torque fluctuation is less than 2%, completely eliminating the “stuttering sensation” of traditional square wave control.
• Disruptive Energy Efficiency Optimization：Dynamic voltage regulation technology allows operating voltage to drop to 1.8V, combined with multi-level sleep modes (e.g., Stop mode current < 2μA), extending battery life by 15%. The Extreme Sea APM32F035 solution compresses BMS standby power consumption to 0.8μA through PASR (Partial Array Refresh) technology, adapting to the long-term static needs of shared vehicles.
• Comprehensive Interface Ecosystem：Native integration of industrial buses such as CAN/USB/Ethernet supports automotive-grade communication protocols. For example, the N32G430 achieves data synchronization between the controller and dashboard via CAN-FD (latency < 100μs) and includes a hardware encryption engine to provide AES-256 tamper-proof protection for OTA upgrades.
Artery Yateli AT32F421G4U7: The Benchmark Choice for Value MCUs
The Yateli AT32F421G4U7 redefines the control standards for two-wheelers with automotive-grade performance at consumer-level costs. This device features a Cortex-M4 core, a frequency of 120MHz, and is equipped with 16KB Flash and 8KB SRAM, achieving ultra-high-density integration through a QFN-28 package (4×4mm). Its full-link parameter comparison highlights differentiated competitiveness:
|
Parameter |
AT32F421G4U7 |
Typical Values of Competitors |
Advantages |
|
Frequency |
120MHz |
48~80MHz |
FOC computation speed increased by 150% |
|
ADC Sampling Rate |
2MSPS (12-bit) |
1MSPS |
Current sampling error < 0.5% |
|
Operating Temperature |
-40℃~105℃ |
-40℃~85℃ |
Adapts to high-temperature environments in engine compartments |
|
5V Tolerance I/O Ratio |
100% |
30%~60% |
Eliminates level conversion circuits |
|
Dynamic Power Consumption |
60μA/MHz |
100μA/MHz |
Extended battery life by 10% |
This chip implements code partition encryption through the sLib security library, allowing solution providers to pre-burn motor control algorithms, while downstream customers can develop UI logic without fear of core intellectual property leakage. In electric two-wheeler applications, its value is released through three major scenarios:
1. High-Precision Motor Control：Hardware multipliers accelerate FOC calculations, supporting single-resistor sampling technology, eliminating the need for 3 operational amplifiers (BOM cost reduced by ¥0.8);
2. Intelligent BMS Management：Dual ADCs synchronize the acquisition of 16 cell battery voltages, combined with the Coulomb counting method, achieving SOC estimation accuracy of ±3%;
3. Interactive System Upgrade：Driving TFT color screens via SPI interfaces for navigation projection and fault diagnosis visualization.
Mandu Technology, as the official authorized agent of Yateli, provides closed-loop support for two-wheeler manufacturers:
• Precise Adaptation：Providing pin-compatible alternatives based on N32/Extreme Sea platforms, delivering the “Hardware Migration Guide” within 48 hours;
• Testing Support：Free sample support for temperature cycling from -40℃ to 125℃, 50G random vibration, and EMC conduction immunity testing;
• Mass Production Assurance：Providing motor control algorithm libraries and OTA encrypted firmware, shortening the R&D cycle by 30%.
During the critical period of electric two-wheelers evolving towards “intelligence, long endurance, and high safety,” the Yateli AT32F421G4U7, with its three core genes of “performance redundancy, extreme cost, and open ecosystem,” becomes the ideal engine for industrial upgrades. Its domestically designed product is priced 25% lower than international competitors, with stable delivery within 4 weeks, completely resolving supply chain risks. Mandu Technology’s local service network further empowers customer innovation—failure analysis laboratories can accurately locate rotor position detection deviations, and the motor control team provides PID parameter tuning and vibration suppression solutions, injecting every electric two-wheeler with an experience of “smooth start, quiet operation, and worry-free mileage.” As new national standards drive industry concentration, and daily active users of shared electric bikes exceed ten million, choosing Yateli means choosing to define the next decade of two-wheeled travel with “uncompromising value.”
About Mandu Technology
Shenzhen Mandu Technology Co., Ltd. has always focused on high-performance, high-quality, and high-reliability integrated circuit product agency, including memory chips, differential crystal oscillators, and MCU microcontroller products, gradually developing integrated analog signal chain products to provide customers with comprehensive high-cost performance solutions. Its application scope covers various fields such as network communication, industrial control, robotics, medical devices, and personal health.
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Website:www.manduic.com
Sales:+86 150-1290-5940
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