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BEVs are very heavy – and expensive

Product planning by car manufacturers around battery-powered electric cars is a failure – and here’s why.

Not so long ago, there was a time when Mercedes-AMG unveiled a new model almost every other week … It seemed that the high-performance division based on the three-star star Affalterbach could do no harm, as the market seemed to be unoccupied. The desire to evolve the dramatic style of existing Mercedes-Benz platforms, which is full of more power and noise.

But now, the weekly trend is different. New Battery Electric Vehicles (BEVs). The The switch is on (The word is intended) and is fully committed to electric vehicles in almost every automotive industry. But not what we need.

There is alarming cognitive dissonance between the stimulus policy of electric vehicles (the all-encompassing term that groups gasoline-electric hybrids – additive or proprietary varieties – with battery-only counterparts) and the derivative. . Anti-ICE campaigners talk about decarbonisation, but almost every new BEV is overly heavy, overly powerful and expensive – resulting in misuse of resources, which is less likely to decarbonize transport.

Greenpeace believed the Hummer H1 symbolized an “evil gas vessel,” but it weighed 423kg lighter than the new BEV version (above).

Back – with the addition of batteries

In the area of ​​poor product planning around BEVs, no one is innocent. American brands produce battery-operated two-oven ovens that are surprisingly heavy. In fact, it’s a lot heavier than the most symbolically vintage of the two-wheeled buck – Land Cruiser 79.

GM’s new The Hummer 4 103kg is a problem Which should never have happened. It uses a large (212 kWh) battery pack, which means GM could have come up with four (yes, four!) Battery-powered crossovers used in a single Hummer.

The Hummer BEV is no different in size, scale, and, indeed, extra features, than the large-capacity naturally aspirated V8 tank.

Despite the advantages of fantastic packaging, which Dedicated BEV design Offers, buyers want large size cars. They also want the charm of a traditional two-box design, instead of significantly more efficient and futuristic slippery shapes.

Rivian is fully committed to BEVs and has a talented engineering team. But its buckles still follow the two-box design principles.

Conservative design does not enhance EV packaging

BEVs do not have to look like old ICE machines. But they do. Two-cabin tanks are especially noteworthy in this regard. They are not designed for efficiency. They are decorated exactly as they should be replaced.

It is noteworthy that most manufacturers no longer name traction ratios in the marketing material of new models. There was a time when low cost Cd was a source of pride and a hallmark of advanced design. Alas, no more.

Designers are tasked with replacing large obsolete ICE SUVs and dual cab BEV models that look almost identical (with huge frontal areas, potentially poor aerodynamics, and low pressure in the rear).

The 4000kg V8 is unacceptable, but is the portable electric car good?

Excessively overweight BEVs require extra energy to move and move with a heavy load of infrastructure damage in the road network. And stopping them is not so easy. Even with the best regeneration system, there is no way to change the physics – a car of significant gravity needs a serious disc brake system to stop it at an acceptable short distance and at a higher speed, you just have to. Live “Hmm, as fast as you can” …

Like most BEVs, the Hummer has a competitive center of gravity (due to the underground positioning of the battery packs), which helps it stay stable while braking. And it stops at a marginally good speed of 100-0 km / h, about the same distance as a large two-cab tank. But the point is that the former can maintain much higher speeds than a dual-cabin diesel engine and accelerate at about 3 times faster.

The introduction of new 2.5- to 4-tonne vehicles with potential for stunning performance should cause safety concerns, literally. Remember, even with increased wheel sizes (meaning more rubber on the road in contact), disc brakes can only do so much to slow down the 4-ton battery electric tank during an emergency stop maneuver.

Audi E-Tron GT is low and sleek, with excellent aerodynamics. It makes the most of the low-profile packaging of the BEV engine.

Like all cars, weight matters

The simple truth is that older car companies do not know how to produce profitable compact BEVs. They do not have the battery power or scaling power to make money on the BEVs we really need at an affordable price. Volkswagen is trying to democratize BEV With its ID platformBut ID models are not manufactured – or retailed – close to the volumes needed to substantially reduce the production costs of these products.

With each new one BEV, which weighs more than a third Rather than the ICE vehicle it replaces, very little is achieved on the decarbonization route of personal transport. It is nonsense to mark massively heavy vehicles at dramatic speeds of 0-100 km / h.

The inconvenient truth is that it makes no sense to replace a large ICE SUV or two-cab tank with a BEV that weighs the equivalent of a fully loaded ICE car. Think about this energy efficiency: it’s like driving a car Your Hilux OrcabinTowing Corolla Cross, of all times. so Exactly What do you do when buying a lot of current luxury BEVs?

The BMW i3 was the perfect size. But no one was interested. And premium car brands are no longer making the same “mistake”.

Small BEVs seem to be missing a cause

Engineering urgency should not be limited to replacing the equivalent ICE range with battery power supplies. But also to achieve a car-like mass when moving buyers. Having 3 to 4 tonnes of vehicles with supercar acceleration levels and without a voice signature is a risk of an urban accident. And they use a lot of battery material that can be used to make smaller and more usable BEVs.

The championship of having very expensive and ridiculously heavy BEVs is clearly wrong. These vehicles are less likely to balance the freedom of personal transport with low environmental impact. At the current average prices of electric cars, they will have a negligible impact on CO2 reduction as sales remain Small fraction Throughout the market.

Need a battery powered electric Model T, VW Beetle or Toyota Corolla equivalent – in other words, an affordable car that can be bought in the millions. And Tesla is probably the only company To make BEVs more accessible with resources, vision and technology. But then again, he took advantage of eight price increases last year – because he could … the solution? This will be Probably Chinese fashion Manufacturer.

BEVs are very heavy – and expensive

Source link BEVs are very heavy – and expensive

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