Ektron: the new Pakelo lubricant,
tailor made for electric cars

Read time: 3 min
Published: 23 September 2022

Hybrid and electric vehicles still need lubricants.

In recent years, talk about electric vehicles has been at an all-time high, both as an affirmation of this global mobility trend, and also concerning the question of the impact these vehicles are having on approaches to maintenance and repairs. Although many questions still remain unanswered, the specific requirements necessary to offer the market suitable products have already been defined.

That’s why we’ve created Ektron: a new lubricant specifically for use on the electric drivetrains of hybrid and fully electric vehicles. First unveiled at the Automechanika international trade fair in Frankfurt, this product has been designed to enhance the performance of electric cars.

What are the key components of an EV motor?

Electric Motor: converts electrical energy into mechanical energy ;
Power Electronics: Inverters (DC/AC), Converters (DC/DC) provide the right voltage for controlling the power;
Reduction Unit: Reduces the high number of revolutions of the electric motor down to an adequate level to drive the wheels;
Differential: Allows each wheel to spin at an independent speed.

EKTRON

Pakelo Ektron is a fully synthetic very high performance lubricant, created specifically for the electric drivetrains (eAxles) of hybrid or fully electric vehicles.
Specifically, Ektron:

  • Has been designed to lubricate Reduction Units;
  • Possesses excellent viscosity characteristics;
  • Provides optimum electrical and circuit protection properties;
  • Is perfectly compatible with elastomers and plastics.

It’s suitable for single-gear or multi-gear drivetrains, as well as for direct cooling of electric motors (wet eMotors).

Pakelo Ektron is a multifunction fluid which can be used as a “service fill” in the electric drivetrains (eAxles) of different manufacturers.

Direct or indirect cooling of eAxles, what’s the difference?

Indirect cooling:

This form of heat exchange employs so-called heat sinks (usually alloy plates) that absorb heat from the car, inverter or battery cells, normally transferring it to the coolant pumped around the system.

Direct cooling:

Heat is dissipated through direct contact of the lubricant with the individual battery cells.
This solution represents the future (one that’s already present in some applications). This is because:

  • It mproves heat exchange by enabling a reduction in the volume of fluids to be cooled;
  • It enhances efficiency;
  • It allows ultra-fast battery charging;
  • Tests show that battery life expectancies are superior.

For example, in the Tesla, cooling of the motor, inverter and batteries is entrusted to a single circuit which, if necessary, can obtain thermal energy from the air conditioning system.

There are also products available on the market with very low viscosity, meaning they’re very fluid and thus favour cooling. The degree of viscosity chosen for Pakelo Ektron, on the other hand, has been made to favour enhanced protection for gears and bearings. That’s why the product is more viscous than other products in the same category.

Electric vehicles: what you need to know

Micro Hybrid

the name is somewhat of a misnomer because they don’t have electric motors – only an ICE (Internal Combustion Engine) – and a starter motor connected to an additional battery that exploits the Start & Stop system to store electrical energy. Fuel efficiency is improved by 5-10% compared to a classic internal combustion engine.

MHEV: Mild Hybrid Electric Vehicle.

This contains both an internal combustion engine and an electric motor, which supports the conventional engine. The electric motor starts in situations when fuel consumption is higher, such as starting the car. The battery cannot be charged using an external socket, but is charged using what’s called regenerative braking. Fuel efficiency is improved by 20-30%.

FHEV: Full Hybrid Electric Vehicle or simply Hybrid.

These contain both an internal combustion and electric motor that work in tandem yet autonomously based on driving conditions. The electric motor starts when driving conditions are most efficient. They don’t have external charging sockets. Fuel efficiency is improved by 30-50%.

PHEV: Plug-in Hybrid Electric Vehicle.

These are equipped with a lower powered internal combustion engine and an electric motor connected to a battery that recharges both during braking and via a power socket. It has the advantage of improved range when compared to other hybrids working in electric-only mode.

E-REV: Extended Range Electric Vehicles.

have an auxiliary power unit and are classed as a form of PHEV. These are hybrid cars but the driving force is provided exclusively by an electric motor, while the internal combustion engine (or fuel cells) are used solely to charge the battery.

BEV: Battery Electric Vehicle.

Here we enter the domain of all-electric cars (e-mobility). They're powered exclusively by batteries and have no internal combustion engine.

FCEV: Fuel Cell Electric Vehicle.

These are vehicles that use hydrogen and oxygen to convert chemical into electrical energy by means of fuel cells that then recharge the batteries.

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