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Brand: C.OEFT
OE numbers: 35220-45010，3522045010
Product Name:Transmission Valve
Compatible model: U250E U150E U151E
Product status: Remanufactured
Product weight:0.074KG
Packaging size: 15X7.5X6 cm
Product packaging: Neutral Packaging
Car Series: Japanese
Car Type: for Toyota Lexus
1. Hybrid System Synergistic Control for Efficient Power Transmission
The 35220-45010 solenoid valve adopts a hybrid-specific dual-oil-circuit design (engine-driven clutch circuit + motor-driven clutch circuit) to coordinate the power output of the engine and motor in hybrid models. When the vehicle is in different working modes (pure electric, hybrid, regenerative braking), the TCU sends targeted signals to the solenoid valve to adjust the pressure of the corresponding clutch oil chamber, ensuring seamless switching between power sources.
For example, in a Toyota Camry Hybrid equipped with the eCVT transmission (to which the 35220-45010 solenoid valve is adapted): during pure electric driving (speed < 40 km/h), the solenoid valve reduces the engine clutch pressure to 0.1 MPa (disengaged) and maintains the motor clutch pressure at 1.2-1.4 MPa (engaged), ensuring the motor drives the vehicle independently; when accelerating (speed > 40 km/h, hybrid mode), it increases the engine clutch pressure to 1.6-1.8 MPa at a gradient of 0.2 MPa/10ms to engage the engine, while adjusting the motor clutch pressure to 1.3-1.5 MPa to balance power output—this process takes only 0.22 seconds, with no obvious power interruption. During regenerative braking, the solenoid valve reduces the motor clutch pressure to 0.8-1.0 MPa, allowing the motor to switch to generator mode smoothly, and the pressure regulation accuracy of ±0.05 MPa ensures the braking force is stable and non-jittery.
2. Multi-Mode Linear Pressure Regulation for Adaptive Working Conditions
A key functional advantage of the 35220-45010 solenoid valve lies in its multi-mode pressure regulation capability, which can adapt to the complex working conditions of mid-to-high-end models (hybrid mode, sport mode, eco mode, low-temperature cold start) while balancing power performance, fuel economy, and comfort. It adopts a closed-loop control mode with dual sensors (pressure sensor + temperature sensor): the TCU not only adjusts the coil current duty cycle (0%-100%) but also optimizes the pressure curve in real time based on oil temperature and load feedback, achieving a pressure regulation accuracy of ±0.05 MPa—higher than the ±0.07 MPa of ordinary mid-range solenoid valves.
In sport mode (e.g., Toyota Avalon accelerating rapidly), the solenoid valve increases the clutch pressure to 2.0-2.3 MPa, ensuring the clutch engages quickly to transmit high torque (up to 300 N·m) without slipping, and the shift time is shortened to 0.2 seconds to enhance dynamic response. In eco mode (e.g., Camry Hybrid cruising at 90 km/h), the pressure is reduced to 0.9-1.1 MPa, minimizing friction loss between clutch plates and reducing fuel consumption by about 9% compared to standard mode. For low-temperature cold starts (below -22℃), the solenoid valve activates the "oil temperature adaptation mode": it maintains a pressure of 0.5-0.7 MPa for 45 seconds, and the built-in temperature sensor monitors the oil temperature in real time—when the temperature rises to 8℃-12℃, the pressure is gradually adjusted to the normal range, avoiding cold friction damage to the clutch and solving the problem of poor low-temperature shifting in hybrid transmissions.
1. Wide Compatibility with Toyota Mid-to-High-End and Hybrid Models
The 35220-45010 solenoid valve is a dedicated component for Toyota’s mid-to-high-end hybrid eCVT and 8-speed AT transmissions, widely used in Toyota’s global mid-to-high-end models and domestic joint-venture vehicles, covering multiple power configurations:
Toyota Global Model Adaptation: Fully compatible with Toyota’s mid-to-high-end models equipped with hybrid eCVT (e.g., THS II system) and 8-speed AT, including Camry Hybrid, Avalon, RAV4 Hybrid, and Highlander Hybrid. Its electrical parameters (coil resistance: 10.8±0.3 Ω, operating voltage: 12V DC) and structural dimensions (installation hole spacing: 24±0.08 mm) perfectly match the original transmission valve body, and the connector adopts a waterproof and anti-interference design (IP67 protection level) to meet the electrical stability requirements of hybrid systems. No modification is required during replacement, ensuring consistent performance with the original factory solenoid valve.
Domestic Joint-Venture Adaptation: In China, it is a standard component for FAW Toyota’s Avalon Hybrid, RAV4 Rongfang Hybrid, and GAC Toyota’s Camry Hybrid, Highlander Hybrid. These joint-venture models adhere to Toyota’s global quality standards, and the 35220-45010 solenoid valve passes Toyota’s rigorous validation tests—including a 10,000-hour high-temperature durability test (140℃), a 12,000-cycle pressure impact test (0.1-2.8 MPa), and a -40℃ to 140℃ extreme temperature cycle test. This ensures reliable operation in diverse climate conditions across China, from the cold northeast to the hot and humid south.
Hybrid and Fuel Vehicle Dual Adaptation: It can adapt to both hybrid eCVT and fuel 8-speed AT systems. For hybrid models (e.g., Camry Hybrid), the solenoid valve’s pressure regulation curve is optimized for the "engine + motor" dual-power output scenario, with a maximum pressure of 2.3 MPa; for fuel models (e.g., non-hybrid Avalon), the maximum pressure is calibrated to 2.5 MPa to match the higher torque of the 2.5L naturally aspirated engine. This dual-adaptation capability avoids the need for developing separate models, reducing inventory pressure for mid-to-high-end vehicle repair shops.
2. High-Durability Material and Precision Craftsmanship
High-Grade Material Selection: The valve body of the 35220-45010 solenoid valve is made of high-strength aluminum alloy (ADC12 with T6 heat treatment) through precision die-casting and CNC machining—this material has a tensile strength of 280 MPa and good corrosion resistance, which can withstand long-term immersion in Toyota’s dedicated ATF (such as WS ATF) and resist corrosion from hybrid system coolants. The surface is treated with a double-layer anti-corrosion coating (chromate passivation + epoxy resin coating), ensuring no rust or deformation even after 400,000 kilometers of use. The spool is made of high-hardness stainless steel (SUS430) and undergoes a multi-step precision grinding process, with a surface roughness of Ra 0.02 μm—reducing friction with the valve body by 25% compared to ordinary stainless steel spools. The sealing ring uses fluororubber (FKM), which can maintain good sealing performance at -40℃ to 200℃ and has excellent resistance to ATF aging, avoiding oil leakage caused by seal failure.
Precision Manufacturing Process: The product adopts Toyota’s "Lean Production" process, with key dimensions (such as spool diameter and oil passage diameter) controlled by a CNC machining center with an accuracy of ±0.002 mm. The coil is wound with 0.20 mm high-purity oxygen-free copper wire (purity 99.98%) using a computer-controlled winding machine, ensuring uniform winding density and stable electrical performance—even in the high-electromagnetic-interference environment of hybrid systems. After assembly, each solenoid valve undergoes a 100% pressure test (0.1-2.8 MPa), a leakage test (leakage rate ≤0.15 mL/min), and a response speed test (≤18 ms), with a pass rate of 100%—far higher than the industry average pass rate of 97%.
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