This manufacturer changes its in-wheel motors and improves the batteries to make the best electric 4×4 in the world

This manufacturer changes its in-wheel motors and improves the batteries to make the best electric 4×4 in the world
This manufacturer changes its in-wheel motors and improves the batteries to make the best electric 4×4 in the world

06/24/2024 19:06

Updated on 06/24/2024 19:06

The electric car market is dominated by type models SUVs that are not designed to go off-road. However, this does not mean that there are no real 4×4 options, although the majority of the offer mounts combustion engines. These vehicles maintain architectures that require differentials located between the axles and between each pair of wheels, used to lock and distribute traction independently to each wheel.

These configurations, combined with electronic aids such as traction control and automatic descent control, allow these traditional 4x4s overcome virtually any obstacle, no matter how challenging it may be. In addition, aspects such as entry, exit, ventral angles and ground clearance play a crucial role in these applications. Manufacturers like rivian have revolutionized this technology with electric platforms that do not require so much mechanical complexity.

Rivian highlights the exceptional 4×4 capabilities of its electric vehicles.

Improving what was already excellent

In the case of the Americans, the capacity of their models to house up to four electric motors, each one in charge of controlling a wheel. This arrangement allows each motor to be managed independently, taking advantage of the instant torque characteristic of this propulsion technology. Among the advantages of this configuration is the elimination of the differentials, which are replaced by the software motor control.

A few days ago, Rivian revealed the details of the R1 BEV platform update, announcing significant improvements in power, performance and autonomy.

Different mechanical configuration options for Rivian electric cars.

One of the most notable novelties is the use of internally manufactured engines in configurations with three and four engines per car, an evolution compared to previous versions that depended on units supplied by Bosch. Until now, only the dual-engine variants of the R1T and R1S models They used Rivian’s in-house propulsion units.

The battery packs have been renewed with redesigned modules and more efficient packaging. These two improvements not only facilitate manufacturing and maintenance, but also provide an estimated autonomy of up to 675 km.

The new platform integrates new motors, batteries, software and electronics.

For those looking for a more affordable vehicle, Rivian offers a new fuel chemistry option. lithium ferrophosphate (LFP) batteries, with an estimated autonomy according to the American EPA approval cycle of 435 km.

To further improve efficiency, the new platform introduces a redesigned thermal system based on heat pump. This system not only improves comfort inside the cabin, but is also designed to maximize energy efficiency.

Besides, the electrical architecture and software They have been completely renovated. According to Rivian, this means reducing 17 electronic control units (ECU) present in first generation vehicles to only seven. This change not only maximizes the vehicle’s efficiency, but also eliminates approximately 2.6 km of wiring in each vehicle, which translates into lower weight.

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