文献翻译—来自宝马的主动转向系统

1、附录 AThe active steering system from BMWActive steering system of control components and engine electronic parts, dynamic stability control system (DSC) and two yaw rate sensors connected mutually. On the basis of the system provided information, it with an average of 100 times per second operation s

2、peed, provide the most real-time, the most ideal steering Angle. By measuring system, can control the Angle to the drivers intentions. Dynamic stability control system based on the number of turns can calculate the speed, and yaw rate sensor can be monitor the vertical axis of the vehicle stability.

3、 For new 5 is running on a line on whether an ideal or on the road of the trend, active steering system always can sensing. When there is a special case of an emergency, such as dodge, all cars will naturally occur oversteer phenomenon. Active steering system at the beginning, and can detect in mill

4、iseconds acoordingly adjusted to Angle within. That is, the system can ride in the imperceptible in automatically reversal steering system to balance the body, so as to increase the the security of driving. And if active steering system itself wasnt enough to maintain the stable advanced vehicle rou

5、te, dynamic stability control system timely intervention, reduce engine will power to impose individual wheel brake or. One thousand control software failure, how to do? BMW engineers had expected to this. In pure line control steering system, electronic control signal to the steering wheel and whee

6、ls, between the mechanical structure and not directly connected. Equipped with active steering system of new 5 department is different, even if its system problem, can still be a turn, only the action to Angle cant increase or decrease. For software obstacles and cause serious mistakes is never allo

7、wed to happen, Philip kohn doctor explained: all the information in computer in two respectively in a different way to carry on the analysis,only active steering system The results of the two sets of same instructions to be accepted, and if the results of conflict, the system will will be closed. Me

8、chanical and electronic device that clever apply bring out the best in each other, BMW to becoming the first corner flexibility and fusion in a car until stability. When the driver removes steering wheel turned an Angle, it turned to the wheel will will deflect a fixed Angle. Drivers in turning proc

9、ess, need to change, according to gently road speed change and other factors, and constantly through the rotating steering wheel to adjust the Angle of steering wheel, maintain the drivers of the track to wish to turn to. The traditional steering system has its own advantages, such as reliable, low

10、failure rate to, there exist some disadvantages, that is steering transmission ratio if is larger, vehicles in low speed to more light, but in high speed to appears too sensitive, steering stability becomes poor. If, on the other hand, turned to the transmission ratio, high speed in smaller vehicles

11、 to will appear sedate, but in low speed state, will be hard to. The characteristics of the largest active steering system, be according to the driving conditions, automatic regulation vehicles, and transmission ratio to increase or decrease the front wheel steering Angle. In the low speed, the role

12、 of the motor with drivers steering wheel rotation of the direction, steering transmission ratio increases, can reduce the demand for drivers to force. In high speed of operation, motor direction and the drivers in opposite directions, steering wheel rotation this reduced the front wheel steering An

13、gle, to reduce the transmission ratio, steering stability improved. In addition to the more comfortable, more flexible, active steering system outside and the important thing is that the more security, which mainly embodies in the vehicle in the high-speed turned suddenly. For example in the highway

14、 a high speed suddenly to go beyond looped a car and then returned to the driveway, or in a high speed suddenly found the obstacles to a sharp turn, it is easy to appear understeer or to excessive, vehicles will deviate from the direction of his book, may lose control. In this case, usually the DSC

15、larger superkings cars BMW system through the intervention process control vehicle braking stability, will greatly reduce traffic speed, increased energy consumption. And active steering system to start from a judge will turn to appeared after the case, through the electronic control mechanical regu

16、lation of device automatic correction to reduce the yaw Angle, intervention occurred. And DSC system in other cars dont have to like driving, ensure intervention of driving stability. However, when active steering system can not complete the control of vehicle, DSC system will participate in to work

17、. Therefore, active steering system need and DSC system to cooperate to use. 附录 B来自宝马的主动转向系统主动式转向系统的控制组件与引擎的电子零件、动态稳定控制系统(DSC)和两只偏航率传感器相联相通。依据这些系统提供的信息，它以平均每秒100次的运算速度，提供最实时、最理想的转向角度。系统通过测量转向角度，可以掌握驾驶者的意图。动态稳定控制系统依据车轮转动的圈数可以计算出车速，而偏航率传感器则可随时监控车辆垂直轴的稳定性。对于新5系是否行驶在理想线路上或是有偏离路线的趋势，主动式转向系统始终都能明察秋毫。 当发生特

18、别紧急的情况时，例如闪避，所有的汽车都会自然地发生转向过度的现象。主动式转向系统在一开始就能察觉，并于毫秒之内相应地调整转向角度。也就是说，系统能在驾乘者不知不觉中自动地反转转向系统来平衡车身，从而提高了行车安全性。而如果主动式转向系统自身不足以让车辆维持稳定的先进路线时，动态稳定控制系统将及时介入，降低引擎马力或对个别车轮施以刹车。 万一控制软件失效了，怎么办？宝马工程师早已料想到这点。在纯粹的线控转向系统中，转向由电子信号控制，方向盘与车轮之间并没有直接的机械结构相联。配备主动式转向系统的新5系则与其不同，即使系统发生故障，仍然能进行转向动作，只不过其转向角度无法增加或减少。因软件障碍而造成严重的转向失误也是绝对不允许发生的，菲利普孔恩博士解释道：所有的信息分别在两台计算机中以不同方式进行分析，只有两台的结果相同时指令才被接受，如果结果出现矛盾，系统就会自行关闭。 机械与电子装置的巧妙运用相得益彰，使得宝马成为第一家融合弯道灵活性与直道稳定性于一车的公司。 当驾驶者将转向盘转过一个角度，那转向轮必然就会偏转一个固定的角度。驾驶者在转弯过程中，需要根据路面弯度变化、车速变化等因素，不断通过转动转向盘来调整转向轮的角度，维持驾驶者希望达到的转向轨迹。传统的转向系统有它