For Korean Hyundai CVT Transmission valve body assembly 48800-02230

48800-02230

For Korean Hyundai CVT Transmission valve body assembly 48800-02230

Brand: C.OEFT

OE numbers: 48800-02230

Product Name: Transmission valve body assembly

Compatible model:

Product status: Remanufactured

Product weight: 10.000KG

Packaging size: 63*41*36cm

Product packaging: Neutral Packaging

Car Series: Korean

Car Type: For Korean Hyundai CVT

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PRODUCT FUNCTIONS APPLICATION ADVANTAGES QUALITY CERTIFICATION

PRODUCT FUNCTIONS

1. Central Control of AT Hydraulic System

As the "hydraulic command center" of the AT transmission, the 48800-02230 valve body precisely controls the flow direction, pressure, and flow rate of hydraulic oil through built-in components such as pressure valves, flow valves, and solenoid valves. When the TCU issues a gear shifting command, the valve body quickly switches the oil circuit (oil circuit response time ≤52ms), driving the torque converter lock-up clutch and the clutches/brake bands of the planetary gear set to act, realizing precise multi-gear shifting. It is a core component ensuring "power-interruption-free" transmission of the AT, which guarantees smooth power transmission from the engine to the wheels and avoids power jams caused by gear shifting deviations.

2. AT-Specific Intelligent Gear Adjustment

It receives real-time data commands from the TCU (data transmission rate: 1100kbps) and dynamically optimizes the gear adjustment strategy based on the transmission characteristics of the AT and the power needs of Korean models:

In "Economy Mode", it shifts up 160-260rpm in advance, targeting the lowest engine speed to prioritize fuel efficiency.

In "Sport Mode", it delays shifting by 220-360rpm, maintaining a high-speed range (2700-4300rpm) to achieve "explosive" acceleration.

It supports "Manual Mode" (simulating 7 fixed gears) and accurately responds to the driver's shifting operations (response delay ≤88ms). At the same time, it is equipped with a gear protection function (e.g., prohibiting shifting up when the speed exceeds 6400rpm, and prohibiting engaging gears above 3rd when the vehicle speed is below 6km/h) to avoid overload damage to the AT planetary gear set.

APPLICATION

ADVANTAGES

1. Exclusive Adaptation for Korean AT Models, OEM-Level Precise Compatibility

As a core control component for specific Automatic Transmission (AT) systems in Hyundai and Kia models (such as Elantra, K3, etc.), the 48800-02230 transmission valve body is developed in strict compliance with the original technical specifications of Hyundai Motor Group. The oil passage layout of the valve plate and spool stroke are fully synchronized with the torque converter and planetary gear set of the AT transmission, and its interface specifications are seamlessly compatible with the Transmission Control Unit (TCU).

It can be directly installed without additional modifications, effectively avoiding issues such as oil leakage and gear shifting jams caused by non-adaptive valve bodies, and ensuring the AT transmission regains its original transmission efficiency. It is particularly suitable for scenarios such as replacing old valve bodies and troubleshooting repairs, and can operate stably without repeated debugging after installation, perfectly matching the after-sales maintenance and original replacement needs of Korean models.

2. Precise Hydraulic Control for Multi-Gears, Enhanced AT Shifting Smoothness

Targeting the "compact structure and efficient transmission" characteristics of Korean AT transmissions, it adopts a combined design of 9 sets of high-precision solenoid valves and stepped pressure regulating valves. It can real-time capture dynamic parameters such as engine load, vehicle speed, and throttle opening, and fine-tune the hydraulic oil pressure with an accuracy of ±0.13MPa.

Compared with ordinary valve bodies, the gear shifting response speed is increased by 25%, and it can complete 4-6 gear shifts within 70-190 milliseconds, significantly reducing the "jitter" during low-speed shifting of AT transmissions. At the same time, by optimizing the hydraulic control logic of the clutches/brake bands of the planetary gear set, power interruption during shifting is avoided. Whether it is frequent start-stops in urban congested road conditions or gear shifts during high-speed cruising, a "shock-free" smooth driving experience can be maintained, meeting the dual comfort needs of household and commercial vehicles.

QUALITY CERTIFICATION

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