請問有人平常就是把DTC 防滑裝置關掉在開的嗎
會不會很危險, 特別在雨天的時候
Dynamic Stability Control (DSC).
Dynamic Stability Control (DSC) adds to safety by facilitating vehicle control even in adverse driving conditions or on tough surfaces.
Dynamic Stability Control (DSC) is the nucleus of the chassis control systems in BMW vehicles. It ensures the highest possible levels of stability when driving, and it maximizes traction of all wheels when setting off or accelerating. It is able to detect the first signs of oversteering or understeering and helps keep the vehicle safely on course, even if the tyres have varying levels of grip.
Sophisticated sensors permanently check how the vehicle is driving. Information comes a range of sensors monitoring wheel rotation, steering angle, lateral forces, pressure and yaw (degree of rotation around the vertical axis). A simulation model stored in the DSC control unit to ensure stability ("one-/two-track model") and can be compared information coming from the steering wheel and accelerator: if there is too great a difference between the model and how the vehicle is currently travelling, DSC acts to increase stability or traction.
The engine and brake management systems are targeted specifically; xDrive is also included in all-wheel drive vehicles. Reducing or increasing the engine torque or braking individual wheels can improve stability and traction. Active Steering’s integrated yaw regulation system can even help significantly reduce steering effort and the extent of DSC’s contribution to stability.
Dynamic Traction Control (DTC).
Dynamic Traction Control (DTC) allows for sports-style driving dynamics even when DSC is controlling stability and when wheel traction is higher.
Dynamic Traction Control (DTC) is a sub-function of the Dynamic Stability Control (DSC) system that can be turned on and off. DTC has two major uses: to regulate traction and to enable sports-style driving while providing active stability control.
If the front wheels are stuck in snow and cannot spin properly, this leads to slip on the rear wheels (when they spin faster than the front wheels, generally a sign that performance has been exceeded) and DSC acts to change engine output: the power needed for forward movement is reduced. Switching to DTC has a positive effect on this situation, as traction is improved without a loss of power.
When DTC is on, it helps the driver alleviate the situation enough for DSC's measures to become effective. The driver retains complete control over the vehicle.
另外摘錄徐州寶馬技師的介紹：
“启动DTC的同时DSC受到限制
车辆在正常状态下是保持DSC开启状态的，DSC是不允许车辆出现打滑等不稳定状态的。当遇到多雪路面时驱动轮会出现打滑，这时DSC会进行干预调节，比如降低发动机功率或进行制动干预，车辆就会出现驾驶员要求加速而DSC系统要求刹车的矛盾，可能使车辆根本无法起步。可以按一下中控台上的"TDC"按钮，仪表盘DTC指示灯会亮启，打开DTC功能可以使车辆允许出现一定程度的打滑，车辆正常行驶上路后再按一下关闭"TDC"。
后驱车被困沙地或雪地出现原地打滑自救方法:好像时无论怎样大脚去踩油门也是无济于事的，此时车主可以关闭车辆的主动安全辅助系统，以BMW为例通常为中控台上的"TDC"按钮，按下这个按钮3秒钟后车辆DSC功能关闭，同时挂入手动2挡模式，缓慢踩油门通常情况下车辆都可以自行驶出。”
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