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Brand: C.OEFT
OE numbers: QR019
Product Name:Transmission Sensor
Compatible model: -
Product status: New
Product weight: 0.0537KG
Packaging size: 7*4*4cm
Product packaging: Neutral Packaging
Car Series: Chinese
Car Type: For Chery 019
1. Core Function: Real-Time Monitoring of Transmission Hydraulic Pressure
As a key component of the transmission hydraulic control system, the AV006M13 sensor undertakes the core function of real-time monitoring of hydraulic pressure. It is typically installed at key positions in the transmission hydraulic circuit, such as the main oil pressure circuit, clutch control circuit, and gear shift valve circuit. When the transmission operates, the sensor converts the detected hydraulic pressure into a standard electrical signal (0-5V or 4-20mA) and transmits it to the ECU. The ECU uses this pressure data to determine the current working state of the hydraulic system—for example, checking whether the main oil pressure meets the requirements of the current operating condition, or whether the clutch pressure is within the optimal range for engagement/disengagement. This real-time monitoring ensures that the hydraulic system operates within the safe and efficient pressure range, preventing problems such as insufficient pressure (leading to clutch slippage) or excessive pressure (causing component damage).
2. Supporting Precise Gear Shifting and Clutch Control
The accurate pressure data provided by the AV006M13 sensor is essential for achieving smooth and precise gear shifting and clutch control in automatic transmissions. During gear shifting, the ECU adjusts the oil pressure of the relevant shift valve and clutch cylinder based on the real-time pressure signal from the sensor. For example, when shifting from low gear to high gear, the sensor first detects the pressure drop in the low-speed clutch cylinder, and the ECU then increases the pressure in the high-speed clutch cylinder at a controlled rate—ensuring that the two clutches switch smoothly without power interruption or impact. In dual-clutch transmissions (DCTs), the sensor monitors the pressure of the odd and even gear clutches respectively, enabling the ECU to pre-charge the next gear clutch in advance, reducing shift time to less than 0.2 seconds. This precise control not only improves driving comfort but also reduces wear on the clutch and gear components.
1. High-Precision Detection for Accurate Hydraulic Control
The AV006M13 transmission hydraulic sensor adopts a high-sensitivity piezoresistive sensing core, which enables it to achieve a measurement accuracy of ±0.5% full scale (FS) and a resolution of 0.1 kPa. This level of precision ensures that even tiny fluctuations in transmission hydraulic pressure (such as those during gear shifting or clutch engagement) can be accurately captured. Compared to traditional capacitive hydraulic sensors, its linearity error is reduced by 60%, and the response time is as short as 1ms—allowing the transmission’s electronic control unit (ECU) to receive real-time pressure data and make rapid adjustments to the hydraulic system. Whether in low-pressure ranges (0-500 kPa) for clutch pre-fill or high-pressure ranges (0-3000 kPa) for gear locking, the sensor maintains stable and accurate detection performance, laying a solid foundation for smooth transmission operation.
2. Strong Environmental Adaptability for Reliable Operation
Designed to withstand the harsh working environment inside and around the transmission, the AV006M13 sensor features excellent resistance to high temperatures, vibration, and chemical corrosion. Its shell is made of high-temperature-resistant PPS (polyphenylene sulfide) plastic with a glass fiber reinforcement content of 30%, enabling it to operate normally in a temperature range of -40°C to 150°C without performance degradation. The sensor’s pressure-sensitive diaphragm is coated with a diamond-like carbon (DLC) film, which not only enhances wear resistance but also effectively resists corrosion from transmission oil additives (such as anti-oxidants and friction modifiers). In terms of vibration resistance, it meets the ISO 16750-3 standard, withstanding a maximum vibration acceleration of 200 m/s² (20g) in the frequency range of 10-2000 Hz. This robust environmental adaptability ensures the sensor maintains stable performance even in long-term high-load operating conditions (such as heavy-duty truck transmissions or off-road vehicle transmissions).
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