Блок управления антиблокировочной тормозной системой FAW и блок логики кронштейна: The 2 Объяснение критических компонентов

Добро пожаловать в это важное техническое руководство по Блок управления антиблокировочной тормозной системой FAW и блок логики кронштейна (Сборка 554). Это электронная “мозг” of the entire active safety system for the FAW Jiefang CA4251P66K24T1A3E5 6×4 дизельный полуприцеп тягач. This assembly is the central computer that prevents wheel lock-up during panic braking.

The Блок управления антиблокировочной тормозной системой FAW и блок логики кронштейна это “логика” core of the ABS. Its function is to read data from the wheel speed sensors (see Assembly 550), и, if it detects one or more wheels are about to lock and skid, it instantly commands the brake solenoids (see Assembly 539/545) к “pump” the brakes far faster than any human could.

This in-depth guide is an essential resource for professional diesel technicians and parts specialists. Мы разберем всю Блок управления антиблокировочной тормозной системой FAW и блок логики кронштейна в свой 2 serviceable components as listed: the ‘Anti-lock control unit assembly’ (3605115-50А) сам, and the critical ‘Cross recessed pan head screw assembly’ (Q2360616-S.) fasteners that mount it.

Основной компонент 1: The ‘Anti-lock Control Unit’ (3605115-50А)

Сердце Блок управления антиблокировочной тормозной системой FAW и блок логики кронштейна is the ‘Anti-lock control unit assembly’ (3605115-50А). Это “мозг” of the entire system. It is a powerful, sealed microcomputer with a dedicated processor, memory, and input/output channels.

**Electronic Logic:** This unit’s “логика” is to perform thousands of calculations every second. It is connected to the truck’s main CAN bus network. Its primary job is to:

1. **1. Монитор:** Continuously receive the pulse signals from all six wheel speed sensors (see Assembly 550 for front sensors).
2. **2. Compare:** Compare the speeds of all wheels to each other and to the vehicle’s “reference speed.”
3. **3. Detect:** Instantly detect a “slip-ratio” anomaly—the moment a wheel begins to decelerate *faster* than the truck itself, which is the precursor to a lock-up.
4. **4. Command:** Send a precise, high-speed command (as a digital signal) to the specific ‘Anti-lock brake solenoid valve’ (see Assembly 539/545) for that wheel.

**Логика безопасности:** The “anti-lock” function of the Блок управления антиблокировочной тормозной системой FAW и блок логики кронштейна is a life-saving feature. When a wheel locks, it loses all “lateral” (steering) grip. This means that in a panic stop, a truck without ABS will simply plow straight ahead, even if the driver is turning the steering wheel. The “логика” of this ECU is to prevent that. By pulsing the brake on the locking wheel (до 15 times per second), it keeps the wheel *just* on the verge of locking, which provides two benefits:

* **1. Maximum Stopping Power:** A tire’s maximum grip (coefficient of friction) is just before it skids. The Блок управления антиблокировочной тормозной системой FAW и блок логики кронштейна keeps it in this “sweet spot.” * **2. Full Steering Control:** Because the wheel is still rotating, it retains its lateral grip, allowing the driver to steer around an obstacle *while* performing a full-force emergency stop.

A failure of this Блок управления антиблокировочной тормозной системой FAW и блок логики кронштейна (НАПРИМЕР., from water intrusion, voltage spike, or internal short) will immediately disable the ABS and TCS systems and illuminate a warning light on the dashboard.

Основной компонент 2: The “Bracket Logic” and Fasteners (Q2360616-S.)

The “And Bracket” portion of the Блок управления антиблокировочной тормозной системой FAW и блок логики кронштейна is just as critical as the ECU itself. While the bracket is not detailed as a separate part in this specific sub-list (it is often part of the main chassis or another assembly), the *fasteners* that mount the unit to it are.

The parts list calls for three ‘Cross recessed pan head screw assembly’ (Q2360616-S.) крепежные детали. These are the screws that secure the ‘Anti-lock control unit assembly’ (the ECU) to its mounting bracket.

**Bracket Logic:** The “логика” of the bracket is twofold:

• **1. Изоляция:** The bracket for the Блок управления антиблокировочной тормозной системой FAW и блок логики кронштейна is almost always “vibration-damped.” It uses rubber “isolators” или “люверсы” к “float” the sensitive electronic control unit, protecting its internal circuit boards and solder joints from the constant, high-frequency vibration of the diesel engine and chassis.
• **2. Location:** The bracket must place the ECU in a “безопасный” location on the truck’s frame—away from the extreme heat of the exhaust/DPF/turbo, and high enough to be protected from direct water spray, грязь, and road debris.

**Логика крепления:** The ‘Cross recessed pan head screw assembly’ (Q2360616-S.) является а “комбинация” (комбинация) винт. This means it has a pre-installed, captive lock washer (like a spring washer). Этот “логика” is critical for high-vibration applications. It prevents the screw from backing out and ensures the Блок управления антиблокировочной тормозной системой FAW и блок логики кронштейна remains securely mounted. A loose ECU would quickly fail from vibration and could lose its critical “ground” связь, disabling the entire ABS.

FAW Anti-Lock Braking System Control Unit And Bracket Logic Assembly Parts List

В следующей таблице представлена ​​полная, подробная разбивка всех 2 типы компонентов (итого 4 куски) identified in the ‘Anti-lock Control Unit And Bracket Logic Assembly’ (554) схема трактора FAW CA4251P66K24T1A3E5.

Технические характеристики и контекст сборки

Технические характеристики Блок управления антиблокировочной тормозной системой FAW и блок логики кронштейна are defined by its function as the central processing “мозг” for the vehicle’s active safety systems. The Блок управления антиблокировочной тормозной системой FAW и блок логики кронштейна is a safety-critical electronic module.