Jinxin Electronics launches automotive thermal management system solution

Release time：2024-05-29 Source：Original

Whether it is a new energy vehicle or a fuel vehicle, a luxury model or an economy model, the thermal management system plays an important role in the in-car system, which can automatically adjust the cooling intensity according to the driving conditions and environmental conditions to ensure that the cooled object works in the optimal temperature range, thereby optimizing the environmental performance and energy-saving effect of the vehicle, and improving the safety and driving comfort of the car. With the advancement of the "new four modernizations" of the automotive industry, the electrification of small equipment in the car has also become a technology trend. Thermal management systems include fan equipment, pump equipment, valve equipment, and auxiliary equipment such as compressors in air conditioning systems, and electrification, precise control, and cost sensitivity have become important factors for system integrators to consider in mass production.

In response to the above technical trends and market demands, while meeting the stringent requirements of high reliability and high real-time performance of automotive applications, Jinxin Electronics gives full play to the performance advantages of its digital signal processor (DSP) chips in high-speed computing and real-time execution, combined with the company's self-developed software algorithms, to develop a series of application solutions suitable for thermal management systems, including air conditioning compressor solutions, 12V/24V electronic fan solutions, 12V water pump solutions, stepper motor valve solutions, etc. These solutions have the characteristics of precise control, simple circuits, and high cost performance, which perfectly meet the needs of customers.

Air conditioning compressor scheme

Product Parameters:

● Hardware composition: ADP32F035BQ + IPM

●  Working Voltage: DC 360V/ 540V
●  Power: 3000~ 4000W
●  Motor: PMSM motor
●  Control algorithm: double resistor/single resistor non-inductive FOC control
●  Protection function: over-voltage, under-voltage, over-current, phase loss, blockage protection, etc

Scheme features:

●  It has a strong load-on-load start-up capability, which improves the success rate of on-load start-up
●  Weak magnetic speed increase function, smooth in and out of weak magnets
●  Use self-developed algorithm scheme to make the motor control more stable

24V/12V electronic fan solution

Product Parameters:

●  Hardware composition: ADM16F03A2 + MOSFET
●  Motor speed: 2500 rpm
●  Working voltage: DC24V/12V
●  Power: 600W/400W
●  A variety of protection measures: over-current, short circuit, over-voltage, under-voltage, blocking, phase loss, power, start-up protection, etc

Scheme features:

●  Adopt self-developed non-inductive single-resistance FOC algorithm
●  Bus voltage ADC detection
●  Different rotational speeds and fault feedback functions can be controlled by PWM/LIN
●  Start with the wind upwind, low noise, and stable waveform control

12V electronic water pump solution

Product Parameters:

●  Hardware composition: ADM16F03A2 + MOSFET
●  Motor speed: 4000 rpm
●  Working voltage: DC12V
●  Power: 40-100W
●  A variety of protection function measures: over-current, short circuit, over-voltage, under-voltage, blocking, phase loss, power, start protection, etc

Scheme features:

●  Single resistance sine wave, simple circuit, low cost
●  Self-developed non-inductive FOC algorithm, power closed-loop, speed closed-loop
●  The motor control is smooth and the operating noise is small
●  Strong load-bearing starting ability

Stepper motor valve scheme

Product Parameters:

●  Hardware composition: ADM16F03A2 + MOSFET
●  Working voltage: DC 12V
●  Communication mode: LIN /SPI
●  Control algorithm: FOC algorithm
●  Protection function: over/under voltage, over-current, and blocking protection

Scheme features:

●  The main control DSP integrates LDO, pre-drive and LIN modules, with simple circuits and low cost
●  Adjustable rotation speed and constant current operation
●  Low starting and running current
●  Suitable for small low-power stepper motors

Technical support

Jinxin Electronics can provide customers with the schematic diagram, PCB reference board diagram, source code, and software and hardware development technical support corresponding to the above solution, if you need to know more about the details of the solution, please call 0731-88731027.