Core Sea Technology (stock code: 688595) CS32F036Q Yes 一款For body control applications, compliance AEC-Q100 certified vehicle gauge MCU。

CS 32 F0 36 Q内置 32-bit Arm® Cortex-M0 core, 32KB Flash and 4KB SRAM (hardware parity support), integrated 12bit 1Msps ADC (effective accuracy ≥10bit), 1% accuracy high speed oscillator and POR/P DR/LVD and other analog units, support 2.0V~5.5V wide voltage supply and -45℃~105℃ operating temperature。

This paper introduces three application cases of body area controller based on CS32F036Q。

Generally speaking, Mercedes-Benz cars will cause dust and exhaust pollution, and the greater the density of car traffic, the more serious the pollution will be。The air in the vehicle cabin is relatively uncirculated, and it is easy to deposit air pollutants such as tail gas, dust, smoke, etc., which has a bad impact on people's health。

With people more pursuit of health, safety and comfort in the car The breathing environment can provide the dust concentration of the air in the car The intelligent health cabin with high precision measurement and purification has achieved coverage from the initial mid-to-high-end models to a wider range of models, resulting in rapid growth in demand for in-vehicle laser dust sensors。

Laser dust sensor mainly measures the dust concentration value in the air inside the car, with high measurement accuracy, fast response, strong anti-interference, good stability and other performance advantages, to help the car to create an intelligent and safe breathing environment inside the car。

Application block diagram of vehicle laser dust sensor based on CS32F036Q

As a common parking safety auxiliary equipment, the reversing radar measures the distance with the surrounding objects through ultrasonic sensors, and gives distance prompts through audio to ensure the safety of driving。

The ranging function is the core function of the astern radar, which generally adopts the ultrasonic ranging scheme。 The drive ultrasonic sensor emits ultrasonic waves when Time_TX is emitted The ultrasonic signal (the signal frequency is usually 40KHz) is reflected through the obstacle, and the reflected ultrasonic signal is received by the ultrasonic receiver in Time_RX, and becomes the image of the RX signal after amplification and filtering and shaping。 Therefore, based on the time difference between TX and RX and the propagation speed of ultrasonic wave in the air (about 340m/s), the ultrasonic signal propagation distance [D=340*(Time_TX-TimeRX)/2] can be calculated, and finally the distance between the car and the obstacle can be calculated。

Application block diagram of ultrasonic ranging module based on CS32F036Q

With modern automotive electronics The traditional parts and assemblies of automobiles are developing towards mechatronics and intelligence。 As one of the body area ECUs that interact with the driver most frequently, the window controller reduces the speed of the DC motor and increases the torque to switch the window through the reducer, integrates the safety algorithm to realize the anti-pinch function of the window, improves the convenience and comfort of the car, and meets the safety requirements of the car。

The window controller based on CS32F036Q uses PWM external driver to control the speed and steering of the motor, as well as the acceleration and deceleration of the motor by changing the duty cycle of the PWM signal, so as to control the positive reversal of the motor and realize the window lifting control。

In the safety control of the anti-pinch hand, the CS32F036Q ADC is used to sample the working current of the motor, and the safety control of the anti-pinch hand can be identified through the algorithm。At the same time, through GPIO external hall sensor, the position and motion speed of the window are detected, so as to realize the spot detection of the window。The application block diagram is as follows:

Application block diagram of window controller based on CS32F036Q

With the continuous upgrade of the automobile "three" (electrification, networking, and intelligence), the overall proportion of vehicle MCU chips in automotive electronic chips is about 33%, and the MCU demand for its bicycles can exceed hundreds, and the demand for localized MCU solutions is strong。

In this regard, the automotive electronics product line of Core Sea Technology will continue to strengthen the serialization of automotive electronic MCU, product development platform and vehicle quality system construction。Around the intelligent cockpit, human-computer interaction, vehicle PD fast charge, battery management, body control, driving safety and other application scenarios, to achieve a series of automotive MCU chip research and development and market development。