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Simscape™ Driveline™can model complete vehicle systems. These examples demonstrate various vehicle models.
带有开放和有限滑动差速器的四轮驱动车辆。前后差速器可以是标准或类型的扭转。中心差异可以是实心轴,粘合耦合,粘性耦合与锁紧离合器,也可以打开,没有扭矩传递。差异选项在变体子系统中。可以使用模型中嵌入的超链接选择变体。
A simple way of modeling an ABS braking system. The model shows the velocity profile responses achieved for the vehicle CG and the wheels.
A comparison between the behavior of an open differential and a limited slip differential with clutch packs. The limited slip differential is modeled using components from the Gears library and Clutches library in Simscape™ Driveline™. Wheel slip is limited by clutches that engage when the torque applied to the input of the differential exceeds a threshold. The clutches lock the differential so that the output shafts of the differential spin at the same speed.
The effect of varying the number of cylinders in a piston engine. Four, six, and eight cylinder engines are included with firing offsets evenly distributed about their four-stroke cycles. Piston pressures are normalized by the number of cylinders to emphasize the effect on output vibration.
A comparison between the behavior of an open differential and a Torsen limited slip differential. The Torsen differential is modeled using components from the Gears library in Simscape™ Driveline™. Slip is limited in the Torsen differential because it uses non-backdrivable worm gears, which are modeled by Sun-Planet Worm Gear components. The result is higher torque applied to the wheel with greater traction, and identical speeds for the left and right axles.
The basic architecture of a two mode hybrid transmission. It consists of three planetary gear sets and four clutches. This combination permits four fixed gear ratios plus two power-split modes. The power split modes are used to transition between fixed gear ratios and for heavy acceleration/deceleration. The fixed ratios help with efficiency when cruising. For the first power split (input-split regime), only Clutch 1 is engaged. For the second power split (compound-split regime), only Clutch 2 is engaged. Engaging two clutches simultaneously removes one degree of freedom and hence results in a fixed ratio.
用SimScape™Driveline™和Simulink®建模的两辆等效的简化车辆。金宝app仿真结果是相同的,并且SIMSCAPE驱动线模型易于扩展,以包括不同的效果和更高水平的建模保真度。可以在不引入代数回路的情况下添加齿轮中的网络损失和更详细的轮胎建模。
A vehicle with a five-speed automatic dual-clutch transmission. The transmission controller converts the pedal deflection into a demanded torque. This demanded torque is then passed to the engine management. The pedal deflection and the vehicle speed are also used by the transmission controller to determine when the gear shifts should occur. Gear shifts are implemented via the two clutches, one clutch pressure being ramped up as the other clutch pressure is ramped down. Gear pre-selection via dog clutches ensures that the correct gear is fully selected before the on-going clutch is enabled.
A complete vehicle with Simscape™ Driveline™ components, including the engine, drivetrain, four-speed transmission, tires, and longitudinal vehicle dynamics. The transmission controller is implemented as a state machine in Stateflow®, selecting the gear based on throttle and vehicle speed.
A four-wheel drive vehicle starting from rest and ascending a 15 degree incline. Initially the vehicle rolls backwards until the engine develops sufficient torque to counter the slope. The tire compliance dynamics can be seen as the vehicle starts to accelerate. The model variant chosen for all of the tires can be set to the Simple, Friction Parameterized, or Magic Formula tire model using the hyperlinks in the model.
具有四速手动变速箱的车辆。传输的关键要素是四个同步器。通过参与或解开这些同步器和相关的狗离合器,该变速箱分别提供四个比率3.581、2.022、1.384和1。使用锥离合器和狗离合器块对同步器进行建模。
模型,参数化和测试卡尺磁盘制动器。该示例使用从串联主缸数据表中提取的数值数据来确定卡尺磁盘制动器的最佳设计。该示例显示了如何为卡尺磁盘制动器生成合规性曲线。
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