Rear-wheel drive后轮 驱动
Masses 车身重量
Center of gravity 重心
Agility is the vehicle's capability to carry out slight changes in direction (= when driving into bends). This process is
Looking at nature.
看大自然的物体.
The fastest animals always have the strongest hind legs. 奔跑最迅速的动物往往会有最强有力的后腿
BMW Technology.
BMW 科技.
Physics speak a clear language. 物理学告诉我们答案.
Basic Automobile Knowledge Handling 操控
Wheelbase 轴距
Basic Automobile Knowledge Handling 操控
Wheelbase 轴距 Why we need long wheelbase? 为什么需要长轴据？
Basic Automobile Knowledge Handling 操控
后驱的优势
Advantage 1
Advantage 2
优势1
优势2
Advantage 3 优势3
Advantage 4 优势4
BMW Technology. BMW 科技.
Physics speak a clear language. Agility.灵活性.
物理学告诉我们答案.
Front-wheel drive前 轮驱动
Advantage 2 优势2
Advantage 3 优势3
Advantage 4 优势4
BMW Technology.
BMW 科技.
Physics speak a clear language. 物理学告诉我们答案.
Steering feel. 转向.
Front-wheel drive前轮 驱动
Advantage 2 优势2
Advantage 3 优势3
Advantage 4 优势4
BMW Technology. BMW 科技.
Physics speak a clear language. Agility.灵活性.
物理学告诉我们答案.
Front-wheel drive前 轮驱动
Rear-wheel drive后 轮驱动
Drive train 驱动方式
FF 前置前驱 FR 前置后驱 MR 中置后驱 RR 后置后驱 4WD / AWD 全轮驱动
Basic Automobile Knowledge Handling 操控
Compare and contrast the following car’s drivetrain 下车型的驱动方式优点与缺点
前轮驱动
后轮驱动
Superior tracking stability in bends is a characteristic feature of cars where all four wheels evenly withstand lateral forces.
Tracking stability is further enhanced by a 50:50 axle load distribution on the front and rear axle. 车辆拥有良好的循迹稳定性可以使过弯时每个车轮受到均匀的侧向力，这是车辆运动性能的一个重要指标。前后 桥重量配比达到50:50，可以大大提高循迹稳定性。
Rear-wheel drive后 轮驱动
Steering 转向
Drive 驱动
The best steering concept is the one which does not suffer from torque steer. 转向轮不承担驱动力，才能获得最佳的转向效果
To achieve this, the task of steering and the task of driving must be divided between the two axles. 想达到这一点，转向与驱动必须分别作用在前后轴上。
Advantage 1 优势1
Advantage 2 优势2
Advantage 3 优势3
Advantage 4 优势4
BMW Technology. BMW 科技.
Physics speak a clear language. Traction. 牵引力.
物理学告诉我们答案.
Front-wheel drive前轮 驱动
比较以
Basic Automobile Knowledge Handling 操控
驱动形式
BMW Technology.
BMW 科技. Why rear-wheel drive? 为什么采用后驱? Physics speak a clear language! 物理学告诉我们答案!
Looking at nature 看大自然的物体
Masses 车身重量
Center of gravity 重心
Agility is the vehicle's capability to carry out slight changes in direction (= when driving into bends). This process is
Rear-wheel drive后 轮驱动
-
+
During acceleration the front wheels are relieved from load and the rear wheels run under a higher load. This is the case with any vehicle concept. 有一个在任何车辆上都会发生的概念：在车辆加速时前轮的负荷会减小而后轮的负荷会增加
The wheels with the higher load are more capable of transferring the drive torque onto the tarmac. 拥有更高负荷的车轮更容易把牵引力传递给路面
Advantage of rear-wheel drive 后驱的优势
D x 1 O m T l _ P n a o g _ e d s t D O T _ P a g e s
Basic Automobile Knowledge Handling 操控
Drive train 驱动方式
FF FR MR RR 4WD / AWD
Basic Automobile Knowledge Handling 操控
前轮驱动
后轮驱动
+
-
Superior tracking stability in bends is a characteristic feature of cars where all four wheels evenly withstand lateral forces.
Tracking stability is further enhanced by a 50:50 axle load distribution on the front and rear axle. 车辆拥有良好的循迹稳定性可以使过弯时每个车轮受到均匀的侧向力，这是车辆运动性能的一个重要指标。前后 桥重量配比达到50:50，可以大大提高寻迹稳定性。
Advantage 1
Advantage 2
Advantage 3
优势1
优势2
优势3
Advantage BMW 科技.
Physics speak a clear language. Steering feel. 转向.
物理学告诉我们答案.
Front-wheel drive前 轮驱动
Rear-wheel drive后轮 驱动
Steering and drive 转 向和驾驶
The best steering concept is the one which does not suffer from torque steer. 转向轮不承担驱动力，才能获得最佳的转向效果。
Advantage 1 优势1
facilitated if vehicle masses are as near as possible to the centre of gravity. 灵活性是指当方向改变时，车辆的姿态只发生轻微变化的能力(当行驶在多弯路段). 当车身重量越接近重心时， 车辆越灵活。
Advantage 1 优势1
Traction. 牵引力.
Front-wheel drive前 轮驱动
Rear-wheel drive 后 轮驱动
-
+
During acceleration the front wheels are relieved from load and the rear wheels run under a higher load. This is the case with any vehicle concept. 有一个在任何车辆上都会发生的概念：在车辆加速时前轮的负荷会减小而后轮的负荷会增加
Advantage 1 优势1
Looking at motorsports 看赛车运动
Advantage 2 优势2
Advantage 3 优势3
Theorem 理论
Advantage 4 优势4
BMW Technology.
BMW 科技.