On-demand four-wheel drive (4WD) can be beneficial for specific situations when driving at high speeds. 4WD vehicles can offer improved driving stability and traction in complex or adverse road conditions, such as rainy or snowy weather, muddy surfaces, or mountainous roads.
These types of vehicles are generally better equipped to handle unfavorable road conditions, enhancing safety and reliability. However, in normal dry and good road conditions, 4WD may not provide significant advantages for high-speed driving.
Firstly, on-demand 4WD systems are intelligent drive modes that automatically switch the vehicle's driving mode based on road conditions, requiring no manual intervention. This system is well-suited for urban driving, especially in slippery or snowy conditions, where it can enhance vehicle stability and safety.
However, the effectiveness of on-demand 4WD is relatively limited on highways. Due to the working principle of part-time 4WD, where there is no speed difference between the front and rear axles, there may be a struggle between the front and rear axles during turns, leading to unstable driving. Therefore, if you frequently drive on highways, opting for the on-demand 4WD version may not be wise.
Additionally, on-demand 4WD systems automatically switch to two-wheel drive mode during high-speed driving to reduce fuel consumption and improve fuel efficiency.
This is because, in 4WD mode, the relationship between the front and rear axles is similar to the rigid connection we experienced with remote-controlled four-wheel-drive cars in childhood – there is no differential speed between the two wheels. Lack of differential speed during turns can result in increased tire wear and the risk of vehicle instability.
