The saving would be so minimal it would be unnoticeable. Just as in a conventional petrol or diesel vehicle, by having the lights on you wouldn't notice a change in fuel mpg, the same is true here with TX and battery range.
Not necessarily. Typically a Low Emission Zone will consist of a charge for any vehicle which does not reach a minimum standard for emissions to enter this zone. As TX meets the required emission standards in London, it is exempt from the scheme or is subject to a 100% discount if a charge in inadvertently applied.
The WLTP (Worldwide Harmonised Light Vehicle Test Procedure) test is the official standard all European car manufacturers are obliged to follow when publishing range, fuel economy and emissions data. The tests are intended to provide repeatable, consistent figures for comparison and are therefore generally performed on a dynamometer.
However, it is widely recognised that these can be difficult to achieve in ‘real-world’ driving. As a result of this, we state the official electric-only range of TX as 81 miles, but have chosen to use a more representative figure of 64 miles when calculating and presenting fuel costs in our marketing literature.
Our battery has been chosen because it is an appropriate size to cover most taxi driver’s daily usage. Bigger batteries are required in high-performance passenger vehicles to ensure adequate real-world range is maintained when the power available is utilised. Bigger batteries mean more cost and more weight, reducing the efficiency and running cost advantages of the electric taxi. There are no plans to change the batteries used in TX.
Absolutely! A recent feasibility study carried out by our Manchester dealership showed that over 70% of taxi drivers within the region travelled approximately 70 miles on their average working day. That means that for most of Manchester’s taxi drivers, an overnight charge would enable them to carry out almost all their working day on pure electric power, if they chose to do so. With the backup of the petrol generator adding almost 300 miles, nobody travelling this distance needs suffer from range-anxiety.
TX is powered by an electric motor that drives the rear wheels, the range-extender supports the electric motor to remove any range-anxiety. There is no mechanical connection between the range-extender & the wheels, it is there to maintain the charge in the battery pack if & when required.
Like all European vehicle manufacturers, we are obliged to use the WLTP (Worldwide Harmonised Light Vehicle Test Procedure) test to determine our published range, fuel economy, and emissions figures. As this testing is intended to provide repeatable and consistent figures for comparison, it is usually carried out on a dynamometer. But, as most real-word vehicle owners know, such figures can be hard to achieve in daily driving. That’s why even though our officially published figures are stated as an 81 miles range, we have chosen a more likely figure of 64 miles when calculating and presenting fuel costs.
This is because the range forecast is based on the temperature of the battery and a warmer battery operates more efficiently. When charging on-street the battery is warmer, because the vehicle has been in use. When charging at home, set the pre-conditioning to help everything warm up before you hit the road to maximise your range. We will release a TX guide to pre-conditioning soon.
The published electric range figures are determined by the official test procedures and, as with official fuel economy data, LEVC are legally required to communicate these figures. The tests are conducted in laboratory conditions and are designed primarily to provide a consistent comparison between different vehicle models. Efficiency will vary during real-world driving due to the huge number of variables involved; such as driver behaviour, ambient temperature, traffic conditions, equipment used, number of passengers on-board and so on.
A new standard for measuring emissions, energy consumption and range was introduced for all vehicle manufacturers in September 2018, which means you will see different figures shown for the same vehicle. The WLTP test (Worldwide Harmonised Light Vehicle Test Procedure) replaces the NEDC standard that has been used since 1992 and is designed to produce figures more representative of real-world driving. If you’d like to know more about the new WLTP test, more information can be found at www.wltpfacts.eu.
Because we recognise that the official range can be difficult to achieve, we have always used real-world data to calculate the fuel savings possible and instead we use this number in all of our Marketing material. The real-world average range of 64 miles has been determined by monitoring the performance of several drivers over many months. In the summer months it is possible to achieve better than this figure and conversely in the winter the figure will be lower. Temperature affects the efficiency of all vehicles, but affects electric vehicles in particular as both the batteries and occupants prefer to be at a comfortable temperature and there is no ‘free’ heat source as in an internal combustion vehicle. There are ways of reducing energy consumption, particularly during cold weather; why not watch our Driving Tips Video Guide below.
While the electric-only range is important for many reasons, it is not the best measure of overall efficiency. TX features a range-extender, so not only can it operate as a pure electric vehicle, it provides the flexibility and peace of mind of a conventional powertrain, but with greater efficiency. If the battery is depleted and it is not convenient to recharge, operating on the range-extender returns fuel economy more than 25% better than our previous TX4 Euro 6 model, with significantly lower tailpipe emissions. Through a combination of re-charging the battery when convenient and operating on petrol power when it is not, we would still expect drivers to achieve significant fuel savings over their previous diesel cab.
The WLTP (Worldwide Harmonised Light Vehicle Test Procedure) test replaces the NEDC (New European Driving Cycle) for all vehicle manufacturers. The test is designed to provide official figures closer to what drivers could achieve in the real-world, but the main purpose is still to enable comparisons between different vehicles.