Unit++巡航控制系统.docVIP

幻灯片1 Unit 15 Cruise Control Systems第十五课 巡航控制系统 幻灯片2 New Words Override 基本的，主要的，首要的 Steep 陡峭的，险峻的，急速升降的 Congested 拥挤的 Resume 恢复，再继续，重新开始，再用 Vacuum 真空，真空度 Transducer 转换器 Solenoid 螺线管，电磁线圈 Manifold 进气歧管 Speedometer 速度计，里程计 幻灯片3 Phase and Expressions Cruise control systems 巡航控制系统 In turn 轮流地，依次，反过来 Powertrain control module (PCM) 动力传动控制模块 Vehicle speed sensor (VSS) buffer amplifier 车速传感器缓冲放大器 Solenoid valve 电磁阀 Generator speed sensor 永磁脉冲式速度传感器 In addition to 除…之外 幻灯片4 15.1 Purpose of Cruise Control Systems15.1 巡航控制系统作用 Cruise control systems are designed to allow the driver to maintain a constant speed without having to apply continual foot pressure to the accelerator pedal. Selected cruise speeds are easily maintained, and speed can be easily changed. Several override systems also allow the vehicle to be accelerated, slowed, or stopped. 巡航控制系统可以使得驾驶员无需持续踩动加速踏板而保持车辆恒速行驶。系统容易地保持在设定的巡航速度上，也便于修改设定的速度值。几个基本系统也使得 车俩能够正常加速、减速和停止。 幻灯片5 When engaged, the cruise control components set the throttle position to the desired speed. The speed is maintained even with heavy loads and steep hills. Also, the cruise control is disengaged whenever the brake pedal is depressed. 一旦启动，巡航控制系统根据设定的速度值设定节气门位置。即使在重载和陡峭的山路上，车速也能持恒定。一旦制动踏板被踩下，巡航控制就会断开。 幻灯片6 The operational controls of a cruise control system are usually located near the steering wheel so they can be easily operated by the driver. Usually the driver has the ability to turn the cruise control on and off as well as increase or decrease the speed. 巡航控制系统的操控控制键一般都在方向盘，这样便于驾驶员操作。一般而言，驾驶员能够轻易打开/关闭巡航控制，并增加或减小设定的速度。 幻灯片7 In addition, most cruise control systems have a coast button to slow the vehicle down in congested areas. Some of the common components of a cruise control system include the servo, push button controls, electric release switch, the transducer, brake/clutch switches, and the vacuum release valve. 另外，大多数巡航控制系统有一个滑扭，可以在拥挤的区域使车辆减速。巡航控制系统一些常见的部件包括：伺服器、控制按钮、电子释放开关、转换器、制动/离合开关和真空释放阀。 幻灯片8