دواسة تسريع FAW: دليل الخبراء لها 3 مكونات المنطق

مرحبًا بك في هذا الدليل الفني المتخصص حول دواسة تسريع FAW حَشد (الجزء لا. 1108010-42A-C00), the critical driver-to-engine interface for the FAW Jiefang CA4251P66K24T1A3E5 6×4 جرار نصف مقطورة ديزل. This is not a mechanical cable, but a sophisticated electronic sensor.

ال دواسة تسريع FAW, جزء من “Engine Control Unit Logic Assembly,” is the primary “torque request” sensor for the “drive-by-wire” نظام. It translates the physical movement of the driver’s foot into a precise voltage signal, which is then sent to the Engine Control Unit (وحدة نقدية أوروبية) to manage fuel injection and engine power.

يعد هذا الدليل موردًا أساسيًا للفنيين المحترفين, مديري الأسطول, ومتخصصين في قطع الغيار. سنقوم بتفكيك الكل دواسة تسريع FAW الجمعية و 3 مكونات صالحة للخدمة, including the electronic pedal, its mounting hardware, and the critical firewall seal, to ensure a complete understanding of this vital system.

المكون الأساسي: Electronic Accelerator Pedal (1108010-42A-C00)

The main component is the ‘Electronic Accelerator Pedal Assembly’ (1108010-42A-C00). هذا هو الكامل دواسة تسريع FAW وحدة. It has replaced the old-fashioned mechanical throttle cable. هذا “drive-by-wire” system offers immense advantages in efficiency, أمان, and integration with other systems like cruise control, التحكم في الجر, and the engine brake.

ال “منطق” of this دواسة تسريع FAW lies in its internal sensors. The assembly is not just a pedal; it is a housing that contains a “non-contact” electronic sensor, typically a set of dual **potentiometers** or **Hall-effect sensors**. As the driver presses the pedal, it rotates a magnet or a wiper arm inside this sealed sensor unit.

This sensor outputs a precise, variable voltage signal (على سبيل المثال, 0.5V at idle, 4.5V at full throttle) that is sent directly to the ECU. This signal is the “torque request” from the driver. ذات جودة عالية دواسة تسريع FAW sensor provides a smooth, linear signal, which allows the ECU to deliver power without any “dead spots” أو “surging.”

The Critical Safety Logic: Dual Sensor Redundancy

A key feature of the دواسة تسريع FAW (1108010-42A-C00) is its fail-safe design. Because it is a 100% إلكتروني “drive-by-wire” نظام, a failure is a critical safety issue (على سبيل المثال, أ “عالق” full throttle). To prevent this, ال دواسة تسريع FAW uses **dual redundant sensors**.

Inside the sensor housing are two (or sometimes three) separate potentiometers (APP1 and APP2) that read the same pedal movement. These two sensors are often programmed to work in opposite or parallel ways. على سبيل المثال:

• **APP1 (الاستشعار 1):** May read from 0.5V (idle) up to 4.5V (full throttle).
• **APP2 (الاستشعار 2):** May read from 4.5V (idle) down to 0.5V (full throttle).

The ECU’s “منطق” constantly compares the signals from these two sensors. At any given pedal position, the sum of their voltages should be a constant 5.0V (in this example). If one sensor fails, the signals will no longer “agree” (على سبيل المثال, 0.7الخامس + 3.0V = 3.7V). The ECU instantly recognizes this “disagree” fault, logs a Diagnostic Trouble Code (DTC), illuminates the “Check Engine” ضوء, and immediately puts the engine into a “limp-home” وضع (على سبيل المثال, idle-only power).

This redundancy is the core safety logic of the دواسة تسريع FAW. A fault in this component is often the cause of a sudden, unexplained loss of power or a “وضع يعرج” event. كامل دواسة تسريع FAW assembly must be replaced, as its internal sensors are sealed and not serviceable.

نظام التركيب: البراغي (CQ1420840) and Seal (1108011-42أ)

ال دواسة تسريع FAW assembly is a simple three-part system, with two of those parts being the critical mounting hardware. The three ‘Combination Bolt’ (CQ1420840) fasteners are used to secure the entire assembly to the truck’s firewall or cab floor.

أ “تركيبة الترباس” has a pre-installed, captive spring-lock washer. This is essential for preventing the bolts from vibrating loose over time, which would result in a “flexing” أو “loose” pedal, providing poor driver feedback and potentially damaging the sensor. The 3-bolt “tripod” pattern provides a very stable, rigid mount for the دواسة تسريع FAW.

The ‘Sealing Plug Cover’ (1108011-42أ) is the third and final component. This is not just a cosmetic cover; it is a critical environmental seal. This large rubber grommet or foam/plastic cover is designed to seal the large hole in the firewall where the دواسة تسريع FAW assembly passes through.

This seal serves four critical functions for the driver:

1. **ضوضاء:** It blocks the immense noise from the diesel engine bay.
2. **Fumes:** It prevents toxic, dangerous fumes (العادم, زيت) من دخول الكابينة.
3. **درجة حرارة:** It seals out the scorching heat from the engine bay in summer and the freezing cold in winter.
4. **ماء:** It prevents water, الثلج, and road salt from splashing into the cab.

FAW Accelerator Pedal Parts List

الجدول التالي يوفر كامل, تفصيل مفصل للجميع 3 components identified in the ‘Accelerator Pedal’ رسم تخطيطي للجرار FAW CA4251P66K24T1A3E5. ال دواسة تسريع FAW is a key part of the engine’s electronic control system.

المواصفات الفنية وسياق التجميع

المواصفات ل دواسة تسريع FAW are defined by its function as a high-reliability electronic sensor. هذا دواسة تسريع FAW is a key input for the Engine Control Unit Logic Assembly.