BlueCore Engine Features: Technological Superiority and Record-Breaking Reliability
The BlueCore engine from the Chinese automaker Changan has become a symbol of technological breakthrough in the automotive industry, combining innovative engineering solutions with unprecedented reliability. This Guinness World Record powertrain is the result of years of research and improvement, as evidenced by its performance and successful application in the brand's various models.
Engineering Design Innovation
High thermal efficiency and combustion efficiency
The main distinguishing feature of the third-generation BlueCore engines is the thermal efficiency of 44.28%, which is 14-25% higher than most modern turbocharged engines .This result was achieved thanks to a set of measures:
- Use of a direct fuel injection system with a pressure of 500 bar versus the standard 350 bar, which ensures optimal atomization of the fuel mixture .
- Unique stroke-to-bore ratio (1.45:1) for optimising combustion and reducing mechanical losses .
- Multi-layer cooling system for the combustion chamber, which allows you to use a compression ratio of 16:1 even on AI-92 gasoline .
- These solutions provide a specific fuel consumption of 6.8 l/100 km for the CS85 crossover weighing 1.6 tons in the combined cycle, which is 15% more economical than analogues.
Intelligent Control System
BlueCore motors are equipped with the iEM 3.0 adaptive control system, which analyzes 23 engine parameters in real time, including:
- Coolant and oil temperature
- Turbine pressure
- Composition of exhaust gases
- Vibration characteristics
This system automatically adjusts valve timing and ignition timing to maintain optimal operation under all loads.
Record-breaking reliability
Pushing yourself to the limit
In 2020, the BlueCore 1.5T engine set a world record by running continuously for 259 hours and 46 minutes at maximum revs of 5500 rpm, which is equivalent to 52,000 km without stopping .During the 11-day test, the following key parameters were recorded:
- Oil Temperature: Stable 108±2°C
- Fuel rail pressure: 350±5 bar
- Vibrations: Did not exceed 0.8 mm/s
This achievement confirmed the estimated Engine life 250,000 km to the first overhaul.
Test Methodology
Before serial production, each engine undergoes:
- 400 hours of bench tests under variable loads
- 50 Cold Start Maximum Speed Cycles
- Detonation Resistance Tests with 87 Octane Fuel
- 1.4 million km of real road tests in extreme climatic conditions
Eco-friendly and compliant
Exhaust Gas Treatment System
BlueCore engines comply with the Euro 6 standard due to:
- Combined EGR system with up to 28% recirculation efficiency
- Three-component catalytic converter with platinum-rhodium coating
- Particulate filter with automatic regeneration
- CO₂ emissions do not exceed 112 g/km for the 1.5-litre hybrid engine.
Noise characteristics
The innovative vibration damping system includes:
- Balance shafts with 180° phase shift
- Hydraulic engine mounts with adaptive stiffness
- Fuel System Acoustic Shroud
- The noise level at idle is 37 dB, which is 40% quieter than similar engines of competitors.
Performance and dynamics
Power characteristics
The turbocharged 1.5-liter engine develops:
- Maximum power: 181 hp at 5500 rpm
- Torque: 300 Nm in the range of 1500-4000 rpm
- Acceleration of the CS55 Plus with a mass of 1560 kg to 100 km/h in 7.8 sec
- For the 2.0-liter version, the figures reach 233 hp. and 390 Nm, providing traction for all-wheel drive versions of the SUV.
Hybrid modifications
The Blue Core 3.0 system combines an internal combustion engine with two electric motors, providing:
- Electric ship up to 130 km on a single charge
- The total power is 215 hp.
- Switch between serial and parallel hybrid modes
Motorsport applications
BlueCore engines have proven their worth in racing conditions:
- Winning the 2021 CTCC class with a modified 240 hp version
- Participation in the Macau Grand Prix, where the engine withstood 2.3 g loads in corners
- A special racing version with an anti-lag system that reduces the turbo to 0.2 seconds
Service Benefits
- Service interval of 15,000 km due to the use of low ash content oil
- 5 years/150,000 km warranty for the entire power unit
Compatible with AI-92 gasoline without loss of power
BlueCore engines are installed on 80% of Changan models , including CS-series crossovers and premium UNI models, demonstrating the versatility of the platform .Their success is based on a harmonious combination of innovative technologies, proven reliability and adaptability to different operating conditions.
