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What does four-wheel drive refer to?

1 Answers

MarleyAnn

09/01/25 6:13am

Four-wheel drive refers to a vehicle maintaining a four-wheel drive mode throughout the entire driving process. The following are specific introductions to the 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 set at a 50:50 ratio between the front and rear wheels during driving. Full-time drive provides excellent driving control and tracking performance, but it consumes more fuel and has poor fuel economy. 2. Part-time drive: The driver can switch between two-wheel drive or four-wheel drive modes by engaging or disengaging the transfer case based on road conditions. This is the most common drive mode for off-road vehicles or four-wheel drive SUVs. 3. On-demand drive: The drive mode is selected by computer control. Under normal road conditions, (front) rear-wheel drive is generally used. If the road conditions are poor or the drive wheels slip, the computer will automatically detect and immediately distribute the engine output torque to the other two wheels, switching to four-wheel drive mode. This mode is simple to operate.

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