Is 4WD Full-Time Four-Wheel Drive or Part-Time Four-Wheel Drive?
1 Answers
4WD stands for four-wheel drive. Below is a detailed introduction to the different four-wheel drive system modes: 1. Full-time drive: The front and rear wheels always maintain a four-wheel drive mode, with the engine output torque distributed 50:50 between the front and rear wheels during driving. Full-time drive offers excellent driving control and tracking performance but is less fuel-efficient and not very economical. 2. Part-time drive: The driver can switch between two-wheel drive or four-wheel drive mode by engaging or disengaging the transfer case based on road conditions. This is the most common drive mode for general off-road vehicles or 4WD SUVs. 3. On-demand drive: The drive mode is controlled by the computer. Normally, (front) rear-wheel drive is used on regular roads. If the road conditions are poor or the drive wheels slip, the computer automatically detects it and immediately redistributes the engine output torque to the other two wheels, switching to four-wheel drive mode. This system is simple to operate.