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Drive concept

The unique drive concept of the Reform Metron impresses with state-of-the-art technology, which interacts intelligently for maximum performance.

Electric travel drive

The travel drive is fully electric. Four synchronous wheel motors (one per wheel) ensure that the Metron is driven efficiently and economically. In fully electric driving mode, the power source is the 8.5 kWh battery pack. This capacity is sufficient for travel times of up to nine hours. Depending on demand, energy is recuperated into the battery system during downhill driving and braking.

Travel drive with running combustion engine

The travel drive is still fully electric when the combustion engine is running. The InMotion generator directly flanged to the engine is the power source in this case. The wheel motors are operated directly via the voltage induced in the generator and the battery pack is charged at the same time.

Wheel motors

Four synchronous motors with permanent magnets ensure maximum drive power, as well as maximum economy. A peak output of 4.8 kW per motor delivers a total output of 19.2 kW. The speed is infinitely variable between 0 and 8 km/h via the remote control. The motors have an integrated freewheel so that the Metron can also be pulled or pushed with just a few movements, for example with a winch onto a trailer. The operating noise of these motors is minimal, which means that the vehicle is also suitable for use at night, or within recreation or health centres.

Electronic differential

The Metron control system automatically calculates the differential compensation. The curve radii, the steering angle and the speed are taken into account for this calculation. To prevent the wheels from spinning on smooth or loose surfaces, the slip of all four wheels is measured continuously. If the electronic monitoring system detects a spinning wheel, the speed of the wheel is automatically reduced and the slip is compensated.

48 V concept

The whole vehicle concept is based on an operating voltage of 48 volts. This means that all electrical consumers are supplied with 48 volts, from the linkages and servomotors to the lighting and the extensions. The only exceptions are the vehicle and engine control units, which run on the standard 12 V. The vehicle has an integrated charger for the remote control battery.

Electricity instead of oil

The complete elimination of hydraulic components is unique in the tool carrier segment. Both the linkages and the steering are controlled by electric servomotors. Integrated electronic state monitoring also makes it possible to control the electric motors accurately, and read out their current position. This is of particular benefit when it comes to sensitive activities and precise work manoeuvres. When it comes to the environment, using servomotors is also a big advantage: For example, there is no danger of a hydraulic hose bursting and oil then leaking, so workers can work in all environments (even in water protection areas).

Maximum working efficiency

Conventional vehicles based on a combination of internal combustion engine and hydraulics achieve an overall efficiency of only 16.5-22% (combustion engine: 30-40%/hydraulic drives: 55%). By using electric servomotors instead of hydraulics, the overall efficiency can be significantly increased; i.e. to 28 to 37.5% (internal combustion engine: 30-40%/electric drives: 93.8 %). Using recuperation, the Metron can efficiently exploit the energy lost during downhill driving and braking and supply it to the battery system.