Edited by Asiautos Auto Part
The braking system of the Chery TIGGO 8 is a critical safety feature designed to ensure reliable stopping power, durability, and performance under various driving conditions. Key components include the brake caliper, front and rear brake pads, and brake disc (rotor). Each part plays a vital role in converting kinetic energy into thermal energy through friction, enabling controlled deceleration. Below is a detailed breakdown of these components.
1. Brake Caliper
The brake caliper is a fundamental part of the disc braking system, responsible for housing the brake pads and pistons that apply pressure to the brake disc. In the TIGGO 8, the calipers are typically made of high-strength cast iron or aluminum alloy to withstand extreme heat and mechanical stress.
Key Features:
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Type: Floating or fixed caliper (depending on trim level). Floating calipers are common in standard models, while performance variants may use fixed multi-piston calipers.
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Function: When the brake pedal is pressed, hydraulic pressure forces the caliper pistons to clamp the brake pads against the rotor.
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Materials: Corrosion-resistant coatings or alloys to prevent rust and ensure longevity.
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Piston Design: Single or dual-piston configurations for balanced clamping force.
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Heat Management: Some models incorporate cooling fins or ducts to dissipate heat during heavy braking.
Maintenance Considerations:
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Regular inspection for piston seal leaks or corrosion.
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Lubrication of sliding pins (for floating calipers) to prevent uneven pad wear.
2. Front Brake Pads
The front brake pads in the TIGGO 8 are engineered to handle higher stress compared to rear pads, as the front wheels absorb up to 70% of braking force. These pads consist of a friction material bonded to a metal backing plate.
Key Features:
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Material Composition:
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Organic: Quiet operation and low dust, but wear faster.
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Semi-Metallic: Durable with better heat resistance, ideal for SUVs like the TIGGO 8.
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Ceramic (Premium Options): Superior heat dissipation, minimal noise, and longer lifespan.
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Wear Indicators: Metal tabs that produce a squealing noise when pads are due for replacement.
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Shims/Vibration Dampers: Reduce noise and vibrations during braking.
Performance Metrics:
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Friction coefficient (μ) typically ranges between 0.35–0.45 for balanced performance.
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Operating temperature range: -40°C to 600°C (varies by material).
Maintenance Tips:
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Replace pads when thickness falls below 3mm.
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Clean and lubricate pad contact points to prevent sticking.
3. Brake Disc (Rotor)
The brake disc (or rotor) is the rotating component against which the brake pads press to create friction. The TIGGO 8 uses ventilated discs at the front (and sometimes rear) for improved cooling.
Design Specifications:
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Type: Ventilated (front) and solid/slotted (rear). Ventilated discs have internal vanes to dissipate heat.
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Diameter: ~300–330mm (front), depending on trim.
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Material: High-carbon steel or composite alloys for heat resistance.
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Coatings: Anti-corrosion treatments (e.g., zinc plating) to protect non-friction surfaces.
Performance Enhancements:
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Slotted/Drilled Rotors: Available in performance models to reduce gas buildup and improve wet-weather braking.
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Runout Tolerance: Precision-machined to minimize pedal vibration.
Common Issues & Solutions:
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Warping: Caused by overheating; avoid hard braking when rotors are cold.
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Grooving: Replace discs if deep grooves exceed manufacturer limits.
4. Rear Brake Pads
The rear brake pads on the TIGGO 8 are smaller and endure less stress than front pads but are equally vital for balanced braking. They often use less aggressive friction materials to prevent rear-wheel lockup.
Key Differences from Front Pads:
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Thinner friction layer due to reduced load.
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May integrate with the electronic parking brake (EPB) in some models.
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Material prioritizes longevity over extreme heat resistance.
Maintenance Notes:
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Inspect during tire rotations (every 10,000 km).
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Ensure compatibility with EPB systems if equipped.
Integration & System Performance
The TIGGO 8’s braking system combines these components with advanced technologies like:
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ABS (Anti-lock Braking): Prevents wheel lockup during emergency stops.
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EBD (Electronic Brakeforce Distribution): Optimizes front/rear braking force.
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Brake Assist: Amplifies pedal force in panic stops.
Durability Testing:
Components undergo rigorous validation for:
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Fade resistance (repeated high-speed braking).
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Corrosion (salt spray tests).
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Noise, vibration, and harshness (NVH) benchmarks.
Conclusion
The TIGGO 8’s braking system is a well-engineered assembly where each component—calipers, pads, and discs—works synergistically to deliver safety and performance. Regular maintenance, such as pad/rotor inspections and fluid checks, ensures optimal functionality. Whether navigating city traffic or mountainous terrain, the TIGGO 8’s brakes are designed to meet diverse demands with reliability.
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