BMW plans to switch to 48-volt hybridsSeptember 23, 2019
Mercedes and Audi corporations started producing soft hybrids MHEV (Mild Hybrid Electric Vehicle) with starters-generators for 48 volts some time ago.
Such a power unit is a starter-generator, which has a belt drive from the ICE crankshaft, and not yet a very large lithium-ion battery. Due to this additional load, it is not possible to move on clean electric traction, but a small electric motor will enable the main ICE to relax and function within the start-stop system in the first seconds of acceleration, instantly activating the internal combustion engine if necessary.
And during braking, the installation goes into generator mode and accumulate energy in the battery. Since all the components of such a hybrid system are quite compact in size, they can be equipped with any mass model. At the same time, the manufacturer will leave a 12 volt battery so that the on-board network can receive power.
The debut hybrid at 48 volts of the brand is likely to be the BMW 520d with a 2-liter diesel engine rated at 190 horsepower: the add-on will be used on sedans and station wagons equipped with four-wheel drive or rear-wheel drive. As noted in the corporation, in this case, cars for every 100 km will save 0.3 liters of fuel. The release of such cars in Europe will be held in November.
Meanwhile, recently at the Nurburgring they again noticed the concept of the high-performance BMW M3. As noted, the novelty will debut in mid-2020.
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