Toyota is introducing a new 1.5 litre petrol engine to the European Yaris range to replace the current 1.33 litre unit. This new ESTEC engine is superior to the outgoing motor in every way – offering more power, more torque, faster acceleration, improved fuel economy and lower CO2 emissions.
Developed in anticipation of the future Euro 6c emissions standard and RDE (Real Driving Emission) homologation requirements, the 1.5L is a member of Toyota’s ESTEC (Economy with Superior Thermal Efficiency) engine family. It is being manufactured in Poland as part of a €150 million production investment programme by Toyota Motor Europe.
In the Yaris, the naturally aspirated four-pot develops 110 bhp and 136 Nm of torque at 4,400 rpm. Compared to the 99 hp 1.33 litre unit, it is 0.8 seconds quicker in 0-100 km/h, while at overtaking speed the improvement is more than a second, moving from 80 to 120 km/h in 17.6 seconds compared to 18.8. Fuel consumption is down by 12% in the NEDC cycle.
Toyota says that its experience in hybrid tech has proved valuable in addressing the challenges presented by Euro 6c and RDE, as this new engine achieves 38.5% thermal efficiency, close to the world’s best 40% claimed by the Prius and Hyundai Ioniq Hybrid. This has been achieved by using a high 13.5:1 compression ratio, adopting a cooled exhaust gas recirculation (EGR) system and extending the VVT operation so that the engine can switch between Otto to Atkinson cycles.
The higher compression ratio has been made possible by the combustion chamber design and new pistons, which promote a homogenous air/petrol mixture and rapid combustion. Cooled EGR reduces combustion temperature and also helps prevent the occurrence of engine knocking. The volume of reinjected inert gases also allows for a reduction in pumping losses at low and medium loads, improving overall efficiency.
The adoption of a new variable inlet valve timing system – VVT-iE – allows the engine to switch from the Otto to the Atkinson cycle (and vice-versa) in a fraction of a second. Controlled electronically, closure of the intake valve is delayed, reducing the compression phase and further helping reduce pumping losses (Atkinson cycle), and enabling a prompt return to the Otto cycle for better performance under high loads The phase shift of the exhaust camshaft is hydraulically controlled.
Engineers also focused on improving fuel consumption at sustained highway cruising speeds, leading to the use – for the first time on a Toyota – of a water-cooled exhaust manifold. By limiting gas temperature, this avoids the need for mixture enrichment to reduce combustion temperature at any highway driving speed. As a result, both fuel consumption and exhaust emissions are reduced.
Like other Toyota ESTEC engines, this 1.5 litre unit benefits from the latest measures designed to reduce friction losses.
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So is it better then our Vios dual vvti?
The article says it is developed in anticipation of the future Euro 6c emissions standard. In short, Toyota is developing an advance engine for Europe. I hope it answer your question bro.
Malaysia still Euro 2m. World already Euro 6. We must be sleeping on the job.
That’s petrol grade, means you don’t know what your talking about
They are talking about emission standards, in which malaysia at euro 4 with the last unece regulation adoption few years ago
While malaysia still slow we aren’t that of somalia level of the regulation, bloody pessimistic idiot
marvellous toyota.
Definitely is. But knowing toyota, this engine probably will only available in msia 20 years later.
Alredi assimilated Mazda high compression tech. Mazda shud sue toyota
Campro more reliable..
Experienced from the past..Japanese’s car always produces the cheaper car for the ordinary people but it is always “UNDER POWERED” car..
Honda did have a similar system called VTEC-E sometime in the 90s, main purpose is economy. hardly popular and not as advance as this system by Toyota.
Direct answer? Yes
again no turbo
turbo is not an answer to everything.
The article is all about Thermal efficiency & emission in anticipation of future Euro 6c emissions standard. In short, this engine is to conform to Euro emission standard.
Carmakers are backtrending from small cc + turbocharged to big cc to meet stricter emission law worldwide. The small engine also cheated like VW and etc.
small car will always use small engine.. big car small engine is the one car maker seem want to abandon.
Toyota. good handling, efficient engines, smooth ride and friendly price.
YB , toyota good handling , hahahahaha
2018 Camry 2.0T 8speed Auto.
Toyota=good handling?! Other than the 86, you can literally drag the door handles on the pavement when you try to do any hard sharp turns in any new Toyotas now… Esp for cars eg Camry.
For that Avanza and Innova, you will flip these 2 POS over long before you can complete that sharp turn
It’s like saying vios can outrun outpace myvi level
Topkek
The power o/p is still the same as the old 1.5L 1NZ-FE from the prev Yaris and the current Vios. All the high tech geewhiz were targeted at meeting super strict emission standards and ever tightening fuel economy standards while still maintaining similar power output.
The old 1NZ-FE simply have no chance in meeting all these draconian standards
You add turbo… reliability all go down the drain… so does fuel economy
Well malaysian market are so cheap they only dump old engine and as always they sale like hot cakes, how stupidlity we are just because of branding or just toyota are just a great car
u mean ASEAN..
Their dinosaur 1NZ + 4-speed auto is still better than Proton’s latest Campro VVT + Punch CVT.
Can’t blame UMW for lacking incentive to upgrade. Well, now they do cuz Honda is dominating.
Punch CVT > Dinosar 4AT
Irony is,
When other japs marque use better tranny (new) and better (new) engine
They perform better than toyota
You all diam no bash toyota
But when proton use better tranny (new) and better (new) engine
And they perform better than toyota
Everyone laughing at proton as if this were 2006 all over again
WOW, this ICE engine can actually switch to Otto cycle in a fraction of a second with the latest Toyota ESTEC engines & can achieves 38.5% thermal efficiency. Now that’s what i call advancement.
Switching between modified Atkinson cycle and Otto cycle is not hard to do, because it only involves how long you hold the intake valve open during the compression stroke. For the regular Otto cycle, you close it shortly after BDC to have high cylinder pressure. For modified Atkinson cycle, you hold it open longer after BDC so that a part of the air fuel charge is pushed out of the intake valves part way through the compression stroke, thus reducing pumping losses but also lowering cylinder pressures. In effect, the switch between Otto cycle and modified Atkinson cycle could be accomplished with tried and tested cam phasing and valve lift control techniques, the difference is that in the past, such technologies were used to increase engine power output by increasing cylinder pressures and intake induction across the Rev range but today, they’re used to increase fuel efficiency and emissions by doing the opposite at low revs.
Thank Q for the info DK. At least U did not tell me 2 read more B4 commenting. Cheers bro. That’s what I call valuable sharing of Info. All the Best.
Really pushing technology
Thailand got Yaris. Those Thais are very lucky. I doubt the current/new Yaris will be sold in Msia.
Yaris not CKD in MY so cannot compete with Jazz (esp Hybrid).
You forget something
We have myvi
Why the hell toyota want to compete their low cost sub company perodua product?
Heck umw did sell yaris before but myvi > all
So they drop yaris from lineup cause nobody want it
Suspect that they are using Mazda 2 platform and engine for this as in Mexico they have sharing over there. Read this :
SALAMANCA, Mexico — Toyota Motor Corp. will add Mazda’s fuel-efficient Skyactiv engine to its tiny stable of borrowed powerplants when it sources a new Mazda2-based subcompact from Mazda’s just-opened assembly plant here.
The car will get Toyota-designed sheet metal on the outside but Mazda’s high-compression, fuel-injected Skyactiv gasoline engine under the hood, said Keishi Egawa, CEO of Mazda’s operations in Mexico and director of its plant here.
The Mazda 2 is marketed as Toyota Yaris iA (only) in the north America. The Yaris in Europe & Asia is Toyota own product. It is different from the Toyota Yaris iA sold in the north America.
I believe it is because of the slow sale of the B-segment car in the USA, thus Toyota market the Mazda 2 as Toyota Yaris iA in the north America.
how nice if this engine can find its way into the Myvi