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Malaysians generally have a preconceived idea of how big an engine should be for each type of car. We’ve come across many who write off 1.0L turbo B-segment cars due to engine capacity, even though the powered engines have good numbers and low torque that would have them outperform their 1.5L rivals NA. C / D segment cars with 1.5T engines? “Can you move, ah?” is a common question.
This is despite the fact that downsizing of the engine has been with us for some time now, and there is much evidence that a downsized turbo engine is capable of much more than the engine’s capacity suggests. In my opinion, the VW Group models are the best poster cars for the downsizing movement (your first time in a modern GTI will tell you it’s all the car you’ll ever need), and we have Honda to credit for introducing downsized turbo engines. in the arena of the Japanese mass market.
It’s all about fuel efficiency and emissions, which are (rightfully) imposed on automakers. Turbocharged to compensate, an engine can get away with less displacement and fewer cylinders. A smaller motor is more efficient; They’re also lighter and smaller in size, adding to the HR gains.
Of course, many have been converted and the mindset of most has changed, but the reaction of some to the 1.0-liter turbo engine in the new Nissan Almera shows that some are married to the bigger the better. You have read what we think of this topic; Now let’s see what Geely has to say.
In an article focusing on the 1.5TD engine range and interviewing Hakan Sandquist, Geely’s powertrain strategy director at CEVT (China Euro Vehicle Technology) in Gothenburg, the company explained the rationale behind the engine family. 1.5TD, housing the 1.5T X50 and 1.5 TGDi engines: the reason for downsizing and countermeasures to the inherent character of a three-cylinder engine.
In addition to the efficiency positives listed above, Geely says the three-cylinder engine is perfect for compact models for a variety of reasons: The smaller size leaves room for hybrid systems (the 1.5 TD engine range was designed from the ground up to withstand electrification) and gives more freedom to designers; while the lower weight makes it easier to achieve a 50:50 chassis weight balance on front-wheel drive models.
Three-cylinder engines vibrate more; that’s how they are. But Geely and Volvo didn’t see this inherent three-can feature as an insoluble problem, because they already have the secret sauce for odd-cylinder engines in the pantry. “For years, Volvo has used a five-cylinder engine and has extensive experience in developing engines for the premium market segment,” said Sandquist.
There is an army of measures to neutralize the enemy. The 1.5TD range features counterbalanced crankshafts, double-mass flywheel with centrifugal pendulum damper, single balance shaft, low-noise timing belt, high-rigidity oil pan, asymmetric oil pump impeller, and one compartment. engine and vibration damper. All of these “have effectively eliminated noticeable engine vibrations,” says Sandquist.
Geely claims that the noise, vibration and harshness (NVH) in models powered by 1.5TD engines is on par or better than some equipped with four-cylinder engines. The automaker says electrified versions of the engine should further reduce vibrations, as most of the sensation is felt during engine cranking and at low engine speeds. In hybrids, the electric motor takes care of these situations before the ICE enters.
All Volvo Engine Architecture (VEA forms the basis of the 1.5TD) engines are designed to accommodate a combination of turbochargers, superchargers and electrical systems; This allows Volvo and Geely to offer consumers different power levels within the same engine family. As building blocks.
With the 1.5TD, Geely and Volvo set out to create a “high-quality, compact and powerful three-cylinder engine with high response.” With a low-inertia turbocharger, traditional turbo lag is minimized and “barely noticeable” while giving the engine the resistance it needs at higher speeds. Geely claims a smooth, linear power output similar to much larger NA engines.
Built to be modular and ready for electrification, the 1.5TD has plug-and-play support for mild hybrid systems, range extenders, hybrids, and plug-in hybrids. An example is the “Twin Engine” plug-in hybrid version of the Volvo XC40. Geely claims that the 1.5TD has the potential to meet future Euro 7 emission levels and global fleet CO2 targets by 2030.
Finally, durability. Volvo and Geely say they tested and validated the 1.5TD beyond the prevailing industry standard. The engines are designed to last 15 years or a distance of 350,000 km, higher than the standard of 10 years or 200,000 km.
Jointly developed by Geely and Volvo at the Volvo R&D center in Gothenburg, CEVT China Euro Vehicle Technology in the same Swedish city, and the Geely Research Institute in China, the 1.5TD engine range is produced worldwide following Volvo’s global manufacturing system. The engines share more than 90% of the same global suppliers through the Chinese automaker’s global joint procurement system.
The 1.5TD family has three basic variants. The range starts with the 1.5T PFI, which is the 1.5T in the X50 Standard, Executive and Premium. PFI stands for Port Fuel Injection. Next up is the 1.5TD using direct injection – this is the 1.5 TGDi in the flagship X50. There is also a Miller 1.5T designed specifically for hybrid applications. The variable valve timing on this PFI mill is adjusted to allow the engine to run on the most fuel efficient Miller cycle.
The three engines in the 1.5TD family are 1,477cc three-potentiometer turbos with similar bore and stroke measurements of 82mm and 93.2mm. What differs is the compression ratio, which is expected due to the different fuel injection systems: it is 10: 1 for the 1.5T PFI, 10.5: 1 for the 1.5TD (1.5 TGDi) and 11.5: 1 for the 1.5 T Miller PFI.
The 1.5T starts with 150 PS (110 kW) at 5,500 rpm and 226 Nm of torque available from 1,500 to 4,000 rpm; the 1.5TD (1.5 TGDi) generates 179 PS (132 kW) at 5,500 rpm and 255 Nm of torque from 1,500 to 4,000 rpm; while the 1.5T Miller is good for 143 PS (105 kW) at 5,500 rpm and 215 Nm of torque from 2,500 to 4,000 rpm. The 1.5TD figures will be 177 PS (130 kW) if adjusted for RON 92 gasoline, and 177 PS is what Proton is quoting.
The Malaysian automaker has also revealed fuel consumption figures: 6.4 liters per 100 km (15.6 km / l) for the 1.5 TGDi Flagship and 6.5 liters per 100 km (15.4 km / l ) for the non DI 1.5T engine that drives the rest. of the X50 range.
We’ve already covered the X50 extensively from the media preview that happened last week, and you can watch it here. Below are the spec-by-spec differences that we know about so far. Please note, however, that the images you see here are of the main flagship variant – Proton has yet to reveal the other variants in metal.
2020 Proton X50 1.5T standard
Get as standard:
- 1.5-liter turbocharged three-cylinder MPI engine
- Around 150 hp and 226 Nm of torque
- Seven-speed dual-clutch (wet) automatic transmission with manual mode (no paddle shifters)
- Four airbags (front and side)
- LED headlights and DRL
- 17-inch alloy wheels
- Quad exhaust pipes
- Carbon fiber print bodykit
- Seats of fabric
- Rear air vents
- Digital instrument cluster
- Eight-inch touchscreen infotainment unit
- Reversing camera
- Electronic parking brake with automatic brake hold
2020 Proton X50 1.5T Executive
Advertising:
- Six airbags (front, side, curtain)
- Leather-wrapped steering wheel
- Automatic headlights
- Front fog lights
- Leatherette seats
2020 Proton X50 1.5T Premium
Advertising:
- Tire pressure monitoring system
- 18-inch alloy wheels with red brake calipers
- Power driver’s seat
- 10.25-inch touchscreen infotainment unit
- 360 degree camera
2020 Proton X50 1.5 TGDi flagship model
Advertising:
- 1.5-liter turbocharged direct injection three-cylinder engine
- 177 hp and 255 Nm of torque
- Advanced Driver Assistance System (ADAS)
- Two-tone exterior (black roof and pillars)
- Panoramic sunroof
GALLERY: 2020 Proton X50 1.5 TGDi Flagship
GALLERY: 2020 Proton X50 Color Options
GALLERY: 2020 Proton X50 Official Images
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