What does VDC mean in a car?

[OwenLynn]

It refers to the Vehicle Dynamics Control (VDC) system. The English name is Vehicle Dynamics Control, abbreviated as VDC, and the Chinese name is the vehicle dynamic control system. When the car experiences wheel slippage, rollover, or loss of tire traction, the VDC system immediately intervenes. It reduces the engine speed while purposefully applying braking control to individual wheels, ultimately guiding the car back to its normal driving path, thereby avoiding the dangers caused by loss of control. Differences between VDC, ABS, EBD, and TCS: TCS function: When the drive wheels slip, the TCS control system will reduce the engine torque via the ABS/VDC control system. If necessary, it communicates with the automatic transmission control module to change shift timing, which reduces wheel slippage, improves the vehicle's acceleration performance, and eliminates wheel steering failure, enhancing driving stability. ABS function: The Anti-lock Braking System detects wheel speed during braking and sends the detected signal to the ABS control unit. The ABS control unit controls the braking force (brake fluid pressure) via solenoid valves to prevent wheel lock-up. It improves operational stability during emergency braking and makes it easier to steer around obstacles. EBD function: During braking, EBD detects minor slippage in the front and rear wheels. If slippage occurs, EBD controls the rear wheel braking force (brake fluid pressure) to minimize rear wheel slippage and improve stability during braking. As a supplement to TCS/ABS functions, the VDC system detects steering input and braking operation via the steering angle sensor and brake switch. Using sensors like the vehicle speed sensor, it determines the vehicle's driving state (understeer/oversteer). When the vehicle makes sharp turns or drives on slippery surfaces, the VDC system adjusts engine torque or applies independent braking to individual wheels to maintain driving stability. In automotive industry-developed countries, the ABS/ASR system has evolved into the Vehicle Dynamics Control (VDC) system. This system functionally and structurally integrates the control systems of the car's braking, driving, suspension, steering, engine, and other major components. It ensures excellent directional stability under various harsh conditions, such as icy roads, uneven surfaces, curved roads, and during evasive maneuvers, lane changes, braking, acceleration, and downhill driving, regardless of load, tire pressure, or tire wear. The application of VDC completely relieves drivers of high demands in braking, acceleration, and steering, marking a new milestone in active vehicle safety. Other button functions in the car are as follows: Fuel tank opening button: This button is used to remotely open the fuel tank cap from inside the car. Vehicles equipped with this button allow the driver to open the fuel tank cap from inside. ESP switch: This is used to turn the vehicle's ESP system on or off. The vehicle's ESP system is set to the working state by default. Reverse radar button: This allows the owner to turn the car's reverse radar system on or off as needed. The driver can press this button to manually control the operation of the reverse radar.

[MacAlessandra]

VDC stands for Vehicle Dynamic Control, known in Chinese as the vehicle dynamic control system. This thing mainly helps you maintain stability while driving, such as during sharp turns on curves or on slippery roads where the car is prone to skidding. VDC will automatically intervene by monitoring wheel speed through sensors and controlling brake distribution to prevent loss of control. I feel like it's an invisible guardian, especially on rainy or snowy days. Before, driving was prone to skidding, but now with it, I feel much more at ease. However, remember to perform regular maintenance and check if the system indicator lights up normally. Otherwise, if it fails, it could increase the risk of accidents. Safety is no small matter, and modern vehicles come standard with this feature to protect you and your family.