[Dippy]

Volkswagen is set to introduce a full-hybrid powertrain to its model lineup for the first time, starting with the second-generation T-Roc SUV. This is a new direction for VW in terms of its electrification strategy. The new powertrain will comprise an internal combustion engine combined with an electric motor and battery.

The ICE unit is expected to be a 1.5-litre four-cylinder turbo petrol engine with an electric motor. The petrol engine will also function as a generator to charge the battery pack. This will result in the vehicle having a limited electric-only driving function. Power outputs planned will vary from 201 BHP to 268 BHP, and peak torque from 350 Nm to 400 Nm.

Volkswagen currently uses plug-in and mild-hybrid technology in its cars, so this will be a big shift. Along with the T-Roc, the Golf and the Skoda Octavia will also get the hybrid setup. Additional models could follow.

The MQB Evo platform, which underpins a wide range of models from the Volkswagen Group, including the T-Roc, allows the carmaker to expand the drivetrain across models like the Tiguan, Passat and Tayron, as well as Audi’s A3, Seat/Cupra’s Leon and Formentor and Skoda’s Scala, Kodiaq and Superb.

Models with the new hybrid drivetrain will be badged as hybrid electric vehicles (HEVs).

Despite the shift to hybrid tech, diesel engines will be available across most VW models. The long-term future of diesels will depend on customer demand and the success of the HEV models.

Volkswagen has committed to investing €60 billion (£51.5bn) by 2028 into ICE development, including the new HEV drivetrain.

The new T-Roc HEV will make its debut at the Munich Motor Show this September. It will be launched in the UK next year and will also be sold with petrol and diesel engines.

Source: Autocar UK

Link to Team BHP news

[volkman10]

Volkswagen prepares an engine with a unique timing system, low maintenance?

After that of the new T-Roc, the big news that is expected is to know what the new hybrid engine that it will equip is like. Perhaps this is a new engine equipped with a very interesting distribution system.

After the leak of the new Volkswagen T-Roc, and waiting to know what the new self-charging hybrid engine that will be released in a few months is like, a latest leak has revealed what the mechanical technology department of the Wolfsburg brand is working on: a new engine in which there is no belt or timing chain, using the crankshaft to move both the camshafts and valves.
Leaked patents, discovered by German colleagues, reveal a system that allows you to dispense with a key element, which reduces maintenance costs, and of which for now it is not known if it is a petrol or diesel block and if it has a four-cylinder architecture or higher. The belt, or timing chain, has been replaced by spur gears – equally effective at moving camshafts and valves – but less susceptible to aging.

What's interesting is that this type of power transmission lengthens maintenance intervals, if not eliminates them entirely. The patent shows a high-pressure injection system, in which direct control of the valves is the responsibility of a single camshaft, when the normal is two.

Currently, all Volkswagen engines feature two shafts, which means that the German brand could return to a scheme of two valves per cylinder, instead of four.

Even accessories such as water and oil pumps, air conditioning compressor and power steering also do without a belt and move by a gear. A component more typical of gearboxes than engines, but which are characterized not only by being more durable - not indestructible - but also by being economical and transmit power smoothly and precisely.

Noise is a disadvantage, but it is clear that this Volkswagen engine with two valves per cylinder invites you to think that performance cannot be very high, as it could compromise the reliability of the engine. But we are in the age of electrification, and we are convinced that the bulk of the power will be the responsibility of an electric motor.

Perhaps it is the thermal side of a hybrid or power generator such as the Japanese e-Power system.

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