Within the larger Honda product family, five models are available with all-wheel drive. However, because each one is not necessarily called upon to perform the same kind of tasks, a single technological approach would not be appropriate.
That's why Honda suggests two systems to customers, depending on the type of vehicle they have in mind.
The first one should be considered a basic system, because it acts only when necessary. We're talking about the Real Time AWD system that serves the HR-V and CR-V SUVs. Then there's the more advanced I-VTM4 technology that powers the Ridgeline, Pilot and Passport models, vehicles that may find themselves in tougher conditions more often than not.
Let's take a look at how each system works.
Real Time AWD is a smart system, because it only reacts when the situation calls for it. For example, you're driving down a partially snow-covered road in a CR-V. The traction is only in the front. However, if the wheels slip when passing a snowy stretch of road, or when starting from a stop, some power is immediately sent to the rear wheels (up to 40%).
This is done without you having to do anything behind the wheel, because the sensors do all the work. So, without having to think about anything, the vehicle moves forward in a stable and safe manner.
At the same time, you also get the best possible fuel economy, because the rear wheels only work when the situation requires them to.
With the I-VTM4 system, the action is more permanent. In fact, the management is such that all wheels are always in action, but to different degrees. What's interesting about this approach is that 70% of the torque can be transferred to the rear wheels. Better yet, the system can shift power from left to right if one side of the vehicle is not getting traction. It's like having claws that you can deploy, if necessary, to get out of a jam. This is what is referred to as torque vectoring.
In addition, a terrain management system is present, in the form of a wheel that allows us to select settings for snow, mud and sand. If you find yourself on one of these surfaces, you can ask the vehicle to adjust its parameters so that the power distribution is optimal for the surface in question. This is very effective.
In fact, the two systems proposed by Honda are very accurate. If you want to see the full extent of the system, come and test drive one of the models when conditions are not so good, you'll be convinced.