Model No: HY4B15A,HY4B15C,HY4B15D,HY4B15E,HY4B15F
EB R&D platform-The first CVVL high efficiency engine independently developed in China.
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EB R&D Platform – CVVL High-Efficiency Engine
EB series high-efficiency engine is the first mass‑produced gasoline engine in China to feature CVVL (Continuous Variable Valve Lift) technology, and also the first domestic gasoline engine to apply passive pre‑chamber combustion technology.
Built on EB R&D platform, this engine series integrates multiple internationally leading technologies, achieving an industry‑leading 43% ultra‑high thermal efficiency while delivering strong power output with significantly reduced fuel consumption.
Built on EB R&D platform, this engine series integrates multiple internationally leading technologies, achieving an industry-leading 43% ultra-high thermal efficiency while delivering strong power output with significantly reduced fuel consumption.
All EB series engines are sourced directly from Great Wall Motor – a leading Chinese automotive manufacturer with world-class R&D and production capabilities. SC INDUSTRY supplies these high-quality powertrain products directly to global OEM customers. The EB series has been widely adopted in SUVs and light trucks, with an annual production capacity of 700,000 units, and fully complies with China 6B and RDE emission regulations.
Key Technology Highlights
- CVVL (Continuous Variable Valve Lift)
Independently developed by SC INDUSTRY, this technology allows continuous adjustment of intake valve lift from 0.8 mm to 8.64 mm across different operating conditions. At 2,000 rpm, it reduces fuel consumption by approximately 9%. Combined with DVVT (Dual Variable Valve Timing), it significantly improves low‑end torque and fuel economy. - Passive Pre‑Chamber Ignition
The EB series is the first Chinese gasoline engine to adopt passive pre‑chamber technology. The optimised combustion chamber design enables faster and more complete combustion, contributing to the 43% thermal efficiency. - VGT (Variable Geometry Turbocharger)
Equipped with a high‑efficiency VGT turbocharger capable of withstanding 980°C exhaust temperatures – one of the first in production worldwide. The advanced compressor wheel and low‑friction bearing system ensure quick spool‑up at low RPM, eliminating turbo lag while delivering strong torque across the entire rev range. - 350Bar High‑Pressure Direct Injection
A centrally mounted injector paired with a 350Bar fuel system, together with a newly designed combustion chamber, achieves superior fuel atomisation and mixing, improving combustion efficiency and reducing emissions. - Dual‑Platform Development
The EB series supports both conventional and hybrid powertrain platforms. Dedicated hybrid variants (HY4B15D / HY4B15E / HY4B15F) are already available to meet the global trend toward electrification.
Engine Models & Specifications
Model | HY4B15A | HY4B15C | HY4B15D (Hybrid) | HY4B15E (Hybrid) | HY4B15F (Hybrid) |
|---|---|---|---|---|---|
Layout | Transverse | Transverse | Transverse | Transverse | Transverse |
Displacement (L) | 1.5 | 1.5 | 1.5 | 1.5 | 1.5 |
Max Power (kW) | 124 (CVVL) | 135 (CVVL) | 110 | 110 | 110 |
Max Power Speed (rpm) | 5000‑5600 | 5500‑6000 | 5500‑6000 | 5500‑6000 | 5500‑6000 |
Max Torque (N·m) | 285 | 275 | 230 | 220 | 220 |
Max Torque Speed (rpm) | 1400‑3000 | 1500‑4000 | 1500‑4000 | 1500‑4000 | 1700‑4000 |
Low‑end Torque (N·m@rpm) | 140/1000 | 135/1000 | 130/1000 | 100/1000 | ≥100/1000 |
Min BSFC (g/kW·h) | ≤240 | ≤220 | ≤220 | ≤205 | 195.2 |
Emission Standard | China 6B | China 6B + RDE | China 6B + RDE | China 6B + RDE | China 6B + RDE |
Annual Capacity | 700,000 | 700,000 | 700,000 | 700,000 | 700,000 |
SOP | Dec. 2018 | Aug. 2021 | Apr. 2021 | Jun. 2022 | Jun. 2022 |
Mated Transmission | 7DCT | 7DCT / 9DCT | 7DCT / 6MT / DHT | 7DCT / DHT | — |
Vehicle Application | SUV / Light Truck | SUV / Light Truck | SUV / Light Truck | SUV / Light Truck | SUV / Light Truck |
Applications
The EB series engines are ideal for:
- SUVs – high torque output for both urban and off‑road driving
- Light trucks – balancing power and fuel economy
- Hybrid vehicles – dedicated hybrid models matched with DHT transmissions for ultra‑low fuel consumption
Why Choose SC INDUSTRY?
- Great Wall Motor Proven Quality — All engines are sourced directly from Great Wall Motor, a leading Chinese automotive manufacturer. Every unit benefits from Great Wall’s rigorous R&D, advanced production facilities, and strict quality control standards.
- Indigenous Technology — CVVL, passive pre-chamber, and other core technologies are developed in-house with full intellectual property rights.
- Scaled Production Capacity — 700,000 units per year ensures stable and reliable supply.
- Global Compliance — All models meet China 6B and RDE requirements, ready for worldwide markets.
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