2017 Toyota RAV4

TRACTION INTEGRALE

TRACTION INTEGRALE (All-Wheel Drive or Four-Wheel Drive) is a drivetrain system that enables power to be distributed to all four wheels of a vehicle simultaneously, enhancing traction, stability, and control across various driving conditions.

Key Components

• Transfer Case: Distributes power between front and rear axles
• Differentials: Allow wheels to rotate at different speeds while cornering
• Driveshafts: Transmit power from the engine to the wheels
• Electronic Control Systems: Manage power distribution in modern AWD/4WD systems

Types of Systems

Part-Time Four-Wheel Drive

Designed primarily for off-road use, this system allows the driver to manually engage or disengage 4WD mode. It should not be used on dry pavement to avoid drivetrain binding.

Full-Time Four-Wheel Drive

Continuously sends power to all four wheels and includes a center differential to allow for speed variations between front and rear axles, suitable for all road conditions.

Automatic All-Wheel Drive

Automatically adjusts power distribution between wheels based on traction needs, using sensors and electronic controls to optimize performance without driver intervention.

Advantages

• Improved traction on slippery or uneven surfaces
• Enhanced stability and handling in adverse weather conditions
• Better acceleration and climbing capability
• Increased safety in challenging driving environments

Disadvantages

• Higher fuel consumption compared to two-wheel drive
• Increased vehicle weight and mechanical complexity
• Higher maintenance and repair costs
• Potential for increased tire wear if not properly maintained